aesni-x86.pl 99.7 KB
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#! /usr/bin/env perl
# Copyright 2009-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# This module implements support for Intel AES-NI extension. In
# OpenSSL context it's used with Intel engine, but can also be used as
# drop-in replacement for crypto/aes/asm/aes-586.pl [see below for
# details].
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#
# Performance.
#
# To start with see corresponding paragraph in aesni-x86_64.pl...
# Instead of filling table similar to one found there I've chosen to
# summarize *comparison* results for raw ECB, CTR and CBC benchmarks.
# The simplified table below represents 32-bit performance relative
# to 64-bit one in every given point. Ratios vary for different
# encryption modes, therefore interval values.
#
#	16-byte     64-byte     256-byte    1-KB        8-KB
#	53-67%      67-84%      91-94%      95-98%      97-99.5%
#
# Lower ratios for smaller block sizes are perfectly understandable,
# because function call overhead is higher in 32-bit mode. Largest
# 8-KB block performance is virtually same: 32-bit code is less than
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# 1% slower for ECB, CBC and CCM, and ~3% slower otherwise.

# January 2011
#
# See aesni-x86_64.pl for details. Unlike x86_64 version this module
# interleaves at most 6 aes[enc|dec] instructions, because there are
# not enough registers for 8x interleave [which should be optimal for
# Sandy Bridge]. Actually, performance results for 6x interleave
# factor presented in aesni-x86_64.pl (except for CTR) are for this
# module.

# April 2011
#
# Add aesni_xts_[en|de]crypt. Westmere spends 1.50 cycles processing
# one byte out of 8KB with 128-bit key, Sandy Bridge - 1.09.
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# November 2015
#
# Add aesni_ocb_[en|de]crypt.

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######################################################################
# Current large-block performance in cycles per byte processed with
# 128-bit key (less is better).
#
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#		CBC en-/decrypt	CTR	XTS	ECB	OCB
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# Westmere	3.77/1.37	1.37	1.52	1.27
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# * Bridge	5.07/0.98	0.99	1.09	0.91	1.10
# Haswell	4.44/0.80	0.97	1.03	0.72	0.76
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# Skylake	2.68/0.65	0.65	0.66	0.64	0.66
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# Silvermont	5.77/3.56	3.67	4.03	3.46	4.03
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# Goldmont	3.84/1.39	1.39	1.63	1.31	1.70
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# Bulldozer	5.80/0.98	1.05	1.24	0.93	1.23
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$PREFIX="aesni";	# if $PREFIX is set to "AES", the script
			# generates drop-in replacement for
			# crypto/aes/asm/aes-586.pl:-)
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$inline=1;		# inline _aesni_[en|de]crypt
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";

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$output = pop;
open OUT,">$output";
*STDOUT=*OUT;

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&asm_init($ARGV[0],$0);

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&external_label("OPENSSL_ia32cap_P");
&static_label("key_const");

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if ($PREFIX eq "aesni")	{ $movekey=\&movups; }
else			{ $movekey=\&movups; }
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$len="eax";
$rounds="ecx";
$key="edx";
$inp="esi";
$out="edi";
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$rounds_="ebx";	# backup copy for $rounds
$key_="ebp";	# backup copy for $key
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$rndkey0="xmm0";
$rndkey1="xmm1";
$inout0="xmm2";
$inout1="xmm3";
$inout2="xmm4";
$inout3="xmm5";	$in1="xmm5";
$inout4="xmm6";	$in0="xmm6";
$inout5="xmm7";	$ivec="xmm7";
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# AESNI extension
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sub aeskeygenassist
{ my($dst,$src,$imm)=@_;
    if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
    {	&data_byte(0x66,0x0f,0x3a,0xdf,0xc0|($1<<3)|$2,$imm);	}
}
sub aescommon
{ my($opcodelet,$dst,$src)=@_;
    if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
    {	&data_byte(0x66,0x0f,0x38,$opcodelet,0xc0|($1<<3)|$2);}
}
sub aesimc	{ aescommon(0xdb,@_); }
sub aesenc	{ aescommon(0xdc,@_); }
sub aesenclast	{ aescommon(0xdd,@_); }
sub aesdec	{ aescommon(0xde,@_); }
sub aesdeclast	{ aescommon(0xdf,@_); }
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# Inline version of internal aesni_[en|de]crypt1
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{ my $sn;
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sub aesni_inline_generate1
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{ my ($p,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout));
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  $sn++;
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    &$movekey		($rndkey0,&QWP(0,$key));
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    &$movekey		($rndkey1,&QWP(16,$key));
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    &xorps		($ivec,$rndkey0)	if (defined($ivec));
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    &lea		($key,&DWP(32,$key));
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    &xorps		($inout,$ivec)		if (defined($ivec));
    &xorps		($inout,$rndkey0)	if (!defined($ivec));
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    &set_label("${p}1_loop_$sn");
	eval"&aes${p}	($inout,$rndkey1)";
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	&dec		($rounds);
	&$movekey	($rndkey1,&QWP(0,$key));
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	&lea		($key,&DWP(16,$key));
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    &jnz		(&label("${p}1_loop_$sn"));
    eval"&aes${p}last	($inout,$rndkey1)";
}}
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sub aesni_generate1	# fully unrolled loop
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{ my ($p,$inout)=@_; $inout=$inout0 if (!defined($inout));
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    &function_begin_B("_aesni_${p}rypt1");
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	&movups		($rndkey0,&QWP(0,$key));
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	&$movekey	($rndkey1,&QWP(0x10,$key));
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	&xorps		($inout,$rndkey0);
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	&$movekey	($rndkey0,&QWP(0x20,$key));
	&lea		($key,&DWP(0x30,$key));
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	&cmp		($rounds,11);
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	&jb		(&label("${p}128"));
	&lea		($key,&DWP(0x20,$key));
	&je		(&label("${p}192"));
	&lea		($key,&DWP(0x20,$key));
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	eval"&aes${p}	($inout,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(-0x40,$key));
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	eval"&aes${p}	($inout,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(-0x30,$key));
    &set_label("${p}192");
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	eval"&aes${p}	($inout,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(-0x20,$key));
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	eval"&aes${p}	($inout,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(-0x10,$key));
    &set_label("${p}128");
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	eval"&aes${p}	($inout,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(0,$key));
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	eval"&aes${p}	($inout,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(0x10,$key));
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	eval"&aes${p}	($inout,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(0x20,$key));
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	eval"&aes${p}	($inout,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(0x30,$key));
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	eval"&aes${p}	($inout,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(0x40,$key));
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	eval"&aes${p}	($inout,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(0x50,$key));
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	eval"&aes${p}	($inout,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(0x60,$key));
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	eval"&aes${p}	($inout,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(0x70,$key));
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	eval"&aes${p}	($inout,$rndkey1)";
    eval"&aes${p}last	($inout,$rndkey0)";
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    &ret();
    &function_end_B("_aesni_${p}rypt1");
}
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191

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# void $PREFIX_encrypt (const void *inp,void *out,const AES_KEY *key);
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&aesni_generate1("enc") if (!$inline);
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&function_begin_B("${PREFIX}_encrypt");
	&mov	("eax",&wparam(0));
	&mov	($key,&wparam(2));
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	&movups	($inout0,&QWP(0,"eax"));
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	&mov	($rounds,&DWP(240,$key));
	&mov	("eax",&wparam(1));
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	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}
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	&pxor	($rndkey0,$rndkey0);		# clear register bank
	&pxor	($rndkey1,$rndkey1);
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	&movups	(&QWP(0,"eax"),$inout0);
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	&pxor	($inout0,$inout0);
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	&ret	();
&function_end_B("${PREFIX}_encrypt");

# void $PREFIX_decrypt (const void *inp,void *out,const AES_KEY *key);
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&aesni_generate1("dec") if(!$inline);
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&function_begin_B("${PREFIX}_decrypt");
	&mov	("eax",&wparam(0));
	&mov	($key,&wparam(2));
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	&movups	($inout0,&QWP(0,"eax"));
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	&mov	($rounds,&DWP(240,$key));
	&mov	("eax",&wparam(1));
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	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}
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	&pxor	($rndkey0,$rndkey0);		# clear register bank
	&pxor	($rndkey1,$rndkey1);
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	&movups	(&QWP(0,"eax"),$inout0);
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	&pxor	($inout0,$inout0);
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	&ret	();
&function_end_B("${PREFIX}_decrypt");
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# _aesni_[en|de]cryptN are private interfaces, N denotes interleave
# factor. Why 3x subroutine were originally used in loops? Even though
# aes[enc|dec] latency was originally 6, it could be scheduled only
# every *2nd* cycle. Thus 3x interleave was the one providing optimal
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# utilization, i.e. when subroutine's throughput is virtually same as
# of non-interleaved subroutine [for number of input blocks up to 3].
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# This is why it originally made no sense to implement 2x subroutine.
# But times change and it became appropriate to spend extra 192 bytes
# on 2x subroutine on Atom Silvermont account. For processors that
# can schedule aes[enc|dec] every cycle optimal interleave factor
# equals to corresponding instructions latency. 8x is optimal for
# * Bridge, but it's unfeasible to accommodate such implementation
# in XMM registers addreassable in 32-bit mode and therefore maximum
# of 6x is used instead...

sub aesni_generate2
{ my $p=shift;

    &function_begin_B("_aesni_${p}rypt2");
	&$movekey	($rndkey0,&QWP(0,$key));
	&shl		($rounds,4);
	&$movekey	($rndkey1,&QWP(16,$key));
	&xorps		($inout0,$rndkey0);
	&pxor		($inout1,$rndkey0);
	&$movekey	($rndkey0,&QWP(32,$key));
	&lea		($key,&DWP(32,$key,$rounds));
	&neg		($rounds);
	&add		($rounds,16);

    &set_label("${p}2_loop");
	eval"&aes${p}	($inout0,$rndkey1)";
	eval"&aes${p}	($inout1,$rndkey1)";
	&$movekey	($rndkey1,&QWP(0,$key,$rounds));
	&add		($rounds,32);
	eval"&aes${p}	($inout0,$rndkey0)";
	eval"&aes${p}	($inout1,$rndkey0)";
	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
	&jnz		(&label("${p}2_loop"));
    eval"&aes${p}	($inout0,$rndkey1)";
    eval"&aes${p}	($inout1,$rndkey1)";
    eval"&aes${p}last	($inout0,$rndkey0)";
    eval"&aes${p}last	($inout1,$rndkey0)";
    &ret();
    &function_end_B("_aesni_${p}rypt2");
}
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sub aesni_generate3
{ my $p=shift;

    &function_begin_B("_aesni_${p}rypt3");
	&$movekey	($rndkey0,&QWP(0,$key));
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	&shl		($rounds,4);
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	&$movekey	($rndkey1,&QWP(16,$key));
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	&xorps		($inout0,$rndkey0);
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	&pxor		($inout1,$rndkey0);
	&pxor		($inout2,$rndkey0);
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	&$movekey	($rndkey0,&QWP(32,$key));
	&lea		($key,&DWP(32,$key,$rounds));
	&neg		($rounds);
	&add		($rounds,16);
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    &set_label("${p}3_loop");
	eval"&aes${p}	($inout0,$rndkey1)";
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	eval"&aes${p}	($inout1,$rndkey1)";
	eval"&aes${p}	($inout2,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(0,$key,$rounds));
	&add		($rounds,32);
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	eval"&aes${p}	($inout0,$rndkey0)";
	eval"&aes${p}	($inout1,$rndkey0)";
	eval"&aes${p}	($inout2,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
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	&jnz		(&label("${p}3_loop"));
    eval"&aes${p}	($inout0,$rndkey1)";
    eval"&aes${p}	($inout1,$rndkey1)";
    eval"&aes${p}	($inout2,$rndkey1)";
    eval"&aes${p}last	($inout0,$rndkey0)";
    eval"&aes${p}last	($inout1,$rndkey0)";
    eval"&aes${p}last	($inout2,$rndkey0)";
    &ret();
    &function_end_B("_aesni_${p}rypt3");
}
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# 4x interleave is implemented to improve small block performance,
# most notably [and naturally] 4 block by ~30%. One can argue that one
# should have implemented 5x as well, but improvement  would be <20%,
# so it's not worth it...
sub aesni_generate4
{ my $p=shift;

    &function_begin_B("_aesni_${p}rypt4");
	&$movekey	($rndkey0,&QWP(0,$key));
	&$movekey	($rndkey1,&QWP(16,$key));
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	&shl		($rounds,4);
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	&xorps		($inout0,$rndkey0);
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	&pxor		($inout1,$rndkey0);
	&pxor		($inout2,$rndkey0);
	&pxor		($inout3,$rndkey0);
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	&$movekey	($rndkey0,&QWP(32,$key));
	&lea		($key,&DWP(32,$key,$rounds));
	&neg		($rounds);
	&data_byte	(0x0f,0x1f,0x40,0x00);
	&add		($rounds,16);
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    &set_label("${p}4_loop");
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	eval"&aes${p}	($inout0,$rndkey1)";
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	eval"&aes${p}	($inout1,$rndkey1)";
	eval"&aes${p}	($inout2,$rndkey1)";
	eval"&aes${p}	($inout3,$rndkey1)";
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	&$movekey	($rndkey1,&QWP(0,$key,$rounds));
	&add		($rounds,32);
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	eval"&aes${p}	($inout0,$rndkey0)";
	eval"&aes${p}	($inout1,$rndkey0)";
	eval"&aes${p}	($inout2,$rndkey0)";
	eval"&aes${p}	($inout3,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
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    &jnz		(&label("${p}4_loop"));
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    eval"&aes${p}	($inout0,$rndkey1)";
    eval"&aes${p}	($inout1,$rndkey1)";
    eval"&aes${p}	($inout2,$rndkey1)";
    eval"&aes${p}	($inout3,$rndkey1)";
    eval"&aes${p}last	($inout0,$rndkey0)";
    eval"&aes${p}last	($inout1,$rndkey0)";
    eval"&aes${p}last	($inout2,$rndkey0)";
    eval"&aes${p}last	($inout3,$rndkey0)";
    &ret();
    &function_end_B("_aesni_${p}rypt4");
}
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sub aesni_generate6
{ my $p=shift;

    &function_begin_B("_aesni_${p}rypt6");
    &static_label("_aesni_${p}rypt6_enter");
	&$movekey	($rndkey0,&QWP(0,$key));
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	&shl		($rounds,4);
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	&$movekey	($rndkey1,&QWP(16,$key));
	&xorps		($inout0,$rndkey0);
	&pxor		($inout1,$rndkey0);	# pxor does better here
	&pxor		($inout2,$rndkey0);
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	eval"&aes${p}	($inout0,$rndkey1)";
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	&pxor		($inout3,$rndkey0);
	&pxor		($inout4,$rndkey0);
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	eval"&aes${p}	($inout1,$rndkey1)";
	&lea		($key,&DWP(32,$key,$rounds));
	&neg		($rounds);
	eval"&aes${p}	($inout2,$rndkey1)";
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	&pxor		($inout5,$rndkey0);
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	&$movekey	($rndkey0,&QWP(0,$key,$rounds));
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	&add		($rounds,16);
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	&jmp		(&label("_aesni_${p}rypt6_inner"));
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    &set_label("${p}6_loop",16);
	eval"&aes${p}	($inout0,$rndkey1)";
	eval"&aes${p}	($inout1,$rndkey1)";
	eval"&aes${p}	($inout2,$rndkey1)";
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    &set_label("_aesni_${p}rypt6_inner");
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	eval"&aes${p}	($inout3,$rndkey1)";
	eval"&aes${p}	($inout4,$rndkey1)";
	eval"&aes${p}	($inout5,$rndkey1)";
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    &set_label("_aesni_${p}rypt6_enter");
	&$movekey	($rndkey1,&QWP(0,$key,$rounds));
	&add		($rounds,32);
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	eval"&aes${p}	($inout0,$rndkey0)";
	eval"&aes${p}	($inout1,$rndkey0)";
	eval"&aes${p}	($inout2,$rndkey0)";
	eval"&aes${p}	($inout3,$rndkey0)";
	eval"&aes${p}	($inout4,$rndkey0)";
	eval"&aes${p}	($inout5,$rndkey0)";
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	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
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    &jnz		(&label("${p}6_loop"));

    eval"&aes${p}	($inout0,$rndkey1)";
    eval"&aes${p}	($inout1,$rndkey1)";
    eval"&aes${p}	($inout2,$rndkey1)";
    eval"&aes${p}	($inout3,$rndkey1)";
    eval"&aes${p}	($inout4,$rndkey1)";
    eval"&aes${p}	($inout5,$rndkey1)";
    eval"&aes${p}last	($inout0,$rndkey0)";
    eval"&aes${p}last	($inout1,$rndkey0)";
    eval"&aes${p}last	($inout2,$rndkey0)";
    eval"&aes${p}last	($inout3,$rndkey0)";
    eval"&aes${p}last	($inout4,$rndkey0)";
    eval"&aes${p}last	($inout5,$rndkey0)";
    &ret();
    &function_end_B("_aesni_${p}rypt6");
}
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&aesni_generate2("enc") if ($PREFIX eq "aesni");
&aesni_generate2("dec");
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&aesni_generate3("enc") if ($PREFIX eq "aesni");
&aesni_generate3("dec");
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&aesni_generate4("enc") if ($PREFIX eq "aesni");
&aesni_generate4("dec");
423 424
&aesni_generate6("enc") if ($PREFIX eq "aesni");
&aesni_generate6("dec");
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425

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if ($PREFIX eq "aesni") {
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######################################################################
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# void aesni_ecb_encrypt (const void *in, void *out,
#                         size_t length, const AES_KEY *key,
#                         int enc);
&function_begin("aesni_ecb_encrypt");
	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));
436
	&mov	($rounds_,&wparam(4));
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	&and	($len,-16);
438
	&jz	(&label("ecb_ret"));
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	&mov	($rounds,&DWP(240,$key));
440 441 442
	&test	($rounds_,$rounds_);
	&jz	(&label("ecb_decrypt"));

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	&mov	($key_,$key);		# backup $key
	&mov	($rounds_,$rounds);	# backup $rounds
445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473
	&cmp	($len,0x60);
	&jb	(&label("ecb_enc_tail"));

	&movdqu	($inout0,&QWP(0,$inp));
	&movdqu	($inout1,&QWP(0x10,$inp));
	&movdqu	($inout2,&QWP(0x20,$inp));
	&movdqu	($inout3,&QWP(0x30,$inp));
	&movdqu	($inout4,&QWP(0x40,$inp));
	&movdqu	($inout5,&QWP(0x50,$inp));
	&lea	($inp,&DWP(0x60,$inp));
	&sub	($len,0x60);
	&jmp	(&label("ecb_enc_loop6_enter"));

&set_label("ecb_enc_loop6",16);
	&movups	(&QWP(0,$out),$inout0);
	&movdqu	($inout0,&QWP(0,$inp));
	&movups	(&QWP(0x10,$out),$inout1);
	&movdqu	($inout1,&QWP(0x10,$inp));
	&movups	(&QWP(0x20,$out),$inout2);
	&movdqu	($inout2,&QWP(0x20,$inp));
	&movups	(&QWP(0x30,$out),$inout3);
	&movdqu	($inout3,&QWP(0x30,$inp));
	&movups	(&QWP(0x40,$out),$inout4);
	&movdqu	($inout4,&QWP(0x40,$inp));
	&movups	(&QWP(0x50,$out),$inout5);
	&lea	($out,&DWP(0x60,$out));
	&movdqu	($inout5,&QWP(0x50,$inp));
	&lea	($inp,&DWP(0x60,$inp));
&set_label("ecb_enc_loop6_enter");
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	&call	("_aesni_encrypt6");
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	&mov	($key,$key_);		# restore $key
	&mov	($rounds,$rounds_);	# restore $rounds
479 480 481 482 483
	&sub	($len,0x60);
	&jnc	(&label("ecb_enc_loop6"));

	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
484
	&movups	(&QWP(0x20,$out),$inout2);
485 486 487 488 489 490
	&movups	(&QWP(0x30,$out),$inout3);
	&movups	(&QWP(0x40,$out),$inout4);
	&movups	(&QWP(0x50,$out),$inout5);
	&lea	($out,&DWP(0x60,$out));
	&add	($len,0x60);
	&jz	(&label("ecb_ret"));
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&set_label("ecb_enc_tail");
	&movups	($inout0,&QWP(0,$inp));
494
	&cmp	($len,0x20);
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	&jb	(&label("ecb_enc_one"));
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	&movups	($inout1,&QWP(0x10,$inp));
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	&je	(&label("ecb_enc_two"));
	&movups	($inout2,&QWP(0x20,$inp));
499 500
	&cmp	($len,0x40);
	&jb	(&label("ecb_enc_three"));
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	&movups	($inout3,&QWP(0x30,$inp));
502 503 504 505
	&je	(&label("ecb_enc_four"));
	&movups	($inout4,&QWP(0x40,$inp));
	&xorps	($inout5,$inout5);
	&call	("_aesni_encrypt6");
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	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
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	&movups	(&QWP(0x20,$out),$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
510
	&movups	(&QWP(0x40,$out),$inout4);
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	jmp	(&label("ecb_ret"));

&set_label("ecb_enc_one",16);
514 515 516 517
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}
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	&movups	(&QWP(0,$out),$inout0);
	&jmp	(&label("ecb_ret"));

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&set_label("ecb_enc_two",16);
522
	&call	("_aesni_encrypt2");
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	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&jmp	(&label("ecb_ret"));

&set_label("ecb_enc_three",16);
	&call	("_aesni_encrypt3");
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);
	&jmp	(&label("ecb_ret"));
533 534 535 536 537 538 539 540

&set_label("ecb_enc_four",16);
	&call	("_aesni_encrypt4");
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
	&jmp	(&label("ecb_ret"));
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######################################################################
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&set_label("ecb_decrypt",16);
543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558
	&mov	($key_,$key);		# backup $key
	&mov	($rounds_,$rounds);	# backup $rounds
	&cmp	($len,0x60);
	&jb	(&label("ecb_dec_tail"));

	&movdqu	($inout0,&QWP(0,$inp));
	&movdqu	($inout1,&QWP(0x10,$inp));
	&movdqu	($inout2,&QWP(0x20,$inp));
	&movdqu	($inout3,&QWP(0x30,$inp));
	&movdqu	($inout4,&QWP(0x40,$inp));
	&movdqu	($inout5,&QWP(0x50,$inp));
	&lea	($inp,&DWP(0x60,$inp));
	&sub	($len,0x60);
	&jmp	(&label("ecb_dec_loop6_enter"));

&set_label("ecb_dec_loop6",16);
559
	&movups	(&QWP(0,$out),$inout0);
560
	&movdqu	($inout0,&QWP(0,$inp));
561
	&movups	(&QWP(0x10,$out),$inout1);
562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577
	&movdqu	($inout1,&QWP(0x10,$inp));
	&movups	(&QWP(0x20,$out),$inout2);
	&movdqu	($inout2,&QWP(0x20,$inp));
	&movups	(&QWP(0x30,$out),$inout3);
	&movdqu	($inout3,&QWP(0x30,$inp));
	&movups	(&QWP(0x40,$out),$inout4);
	&movdqu	($inout4,&QWP(0x40,$inp));
	&movups	(&QWP(0x50,$out),$inout5);
	&lea	($out,&DWP(0x60,$out));
	&movdqu	($inout5,&QWP(0x50,$inp));
	&lea	($inp,&DWP(0x60,$inp));
&set_label("ecb_dec_loop6_enter");

	&call	("_aesni_decrypt6");

	&mov	($key,$key_);		# restore $key
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	&mov	($rounds,$rounds_);	# restore $rounds
579 580 581 582 583
	&sub	($len,0x60);
	&jnc	(&label("ecb_dec_loop6"));

	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
584
	&movups	(&QWP(0x20,$out),$inout2);
585 586 587 588 589 590
	&movups	(&QWP(0x30,$out),$inout3);
	&movups	(&QWP(0x40,$out),$inout4);
	&movups	(&QWP(0x50,$out),$inout5);
	&lea	($out,&DWP(0x60,$out));
	&add	($len,0x60);
	&jz	(&label("ecb_ret"));
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&set_label("ecb_dec_tail");
	&movups	($inout0,&QWP(0,$inp));
594
	&cmp	($len,0x20);
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	&jb	(&label("ecb_dec_one"));
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	&movups	($inout1,&QWP(0x10,$inp));
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	&je	(&label("ecb_dec_two"));
	&movups	($inout2,&QWP(0x20,$inp));
599 600
	&cmp	($len,0x40);
	&jb	(&label("ecb_dec_three"));
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	&movups	($inout3,&QWP(0x30,$inp));
602 603 604 605
	&je	(&label("ecb_dec_four"));
	&movups	($inout4,&QWP(0x40,$inp));
	&xorps	($inout5,$inout5);
	&call	("_aesni_decrypt6");
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	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
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	&movups	(&QWP(0x20,$out),$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
610
	&movups	(&QWP(0x40,$out),$inout4);
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	&jmp	(&label("ecb_ret"));
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&set_label("ecb_dec_one",16);
614 615 616 617
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}
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	&movups	(&QWP(0,$out),$inout0);
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	&jmp	(&label("ecb_ret"));

&set_label("ecb_dec_two",16);
622
	&call	("_aesni_decrypt2");
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	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&jmp	(&label("ecb_ret"));

&set_label("ecb_dec_three",16);
	&call	("_aesni_decrypt3");
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);
632 633 634 635 636 637 638 639
	&jmp	(&label("ecb_ret"));

&set_label("ecb_dec_four",16);
	&call	("_aesni_decrypt4");
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
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&set_label("ecb_ret");
642 643 644 645 646 647 648 649
	&pxor	("xmm0","xmm0");		# clear register bank
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&pxor	("xmm3","xmm3");
	&pxor	("xmm4","xmm4");
	&pxor	("xmm5","xmm5");
	&pxor	("xmm6","xmm6");
	&pxor	("xmm7","xmm7");
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&function_end("aesni_ecb_encrypt");
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######################################################################
653 654 655 656 657 658 659
# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out,
#                         size_t blocks, const AES_KEY *key,
#                         const char *ivec,char *cmac);
#
# Handles only complete blocks, operates on 64-bit counter and
# does not update *ivec! Nor does it finalize CMAC value
# (see engine/eng_aesni.c for details)
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#
661
{ my $cmac=$inout1;
662 663 664 665 666 667 668 669 670 671 672 673 674
&function_begin("aesni_ccm64_encrypt_blocks");
	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));
	&mov	($rounds_,&wparam(4));
	&mov	($rounds,&wparam(5));
	&mov	($key_,"esp");
	&sub	("esp",60);
	&and	("esp",-16);			# align stack
	&mov	(&DWP(48,"esp"),$key_);

	&movdqu	($ivec,&QWP(0,$rounds_));	# load ivec
675
	&movdqu	($cmac,&QWP(0,$rounds));	# load cmac
676
	&mov	($rounds,&DWP(240,$key));
677 678 679 680 681 682 683 684

	# compose byte-swap control mask for pshufb on stack
	&mov	(&DWP(0,"esp"),0x0c0d0e0f);
	&mov	(&DWP(4,"esp"),0x08090a0b);
	&mov	(&DWP(8,"esp"),0x04050607);
	&mov	(&DWP(12,"esp"),0x00010203);

	# compose counter increment vector on stack
685
	&mov	($rounds_,1);
686
	&xor	($key_,$key_);
687
	&mov	(&DWP(16,"esp"),$rounds_);
688 689 690 691
	&mov	(&DWP(20,"esp"),$key_);
	&mov	(&DWP(24,"esp"),$key_);
	&mov	(&DWP(28,"esp"),$key_);

692 693
	&shl	($rounds,4);
	&mov	($rounds_,16);
694
	&lea	($key_,&DWP(0,$key));
695
	&movdqa	($inout3,&QWP(0,"esp"));
696
	&movdqa	($inout0,$ivec);
697 698
	&lea	($key,&DWP(32,$key,$rounds));
	&sub	($rounds_,$rounds);
699
	&pshufb	($ivec,$inout3);
700 701

&set_label("ccm64_enc_outer");
702
	&$movekey	($rndkey0,&QWP(0,$key_));
703
	&mov		($rounds,$rounds_);
704
	&movups		($in0,&QWP(0,$inp));
705

706
	&xorps		($inout0,$rndkey0);
707 708 709
	&$movekey	($rndkey1,&QWP(16,$key_));
	&xorps		($rndkey0,$in0);
	&xorps		($cmac,$rndkey0);		# cmac^=inp
710
	&$movekey	($rndkey0,&QWP(32,$key_));
711 712 713 714

&set_label("ccm64_enc2_loop");
	&aesenc		($inout0,$rndkey1);
	&aesenc		($cmac,$rndkey1);
715 716
	&$movekey	($rndkey1,&QWP(0,$key,$rounds));
	&add		($rounds,32);
717 718
	&aesenc		($inout0,$rndkey0);
	&aesenc		($cmac,$rndkey0);
719
	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
720 721 722
	&jnz		(&label("ccm64_enc2_loop"));
	&aesenc		($inout0,$rndkey1);
	&aesenc		($cmac,$rndkey1);
723
	&paddq		($ivec,&QWP(16,"esp"));
724
	&dec		($len);
725 726
	&aesenclast	($inout0,$rndkey0);
	&aesenclast	($cmac,$rndkey0);
727 728

	&lea	($inp,&DWP(16,$inp));
729
	&xorps	($in0,$inout0);			# inp^=E(ivec)
730
	&movdqa	($inout0,$ivec);
731
	&movups	(&QWP(0,$out),$in0);		# save output
732
	&pshufb	($inout0,$inout3);
733
	&lea	($out,&DWP(16,$out));
734 735 736 737
	&jnz	(&label("ccm64_enc_outer"));

	&mov	("esp",&DWP(48,"esp"));
	&mov	($out,&wparam(5));
738
	&movups	(&QWP(0,$out),$cmac);
739 740 741 742 743 744 745 746 747

	&pxor	("xmm0","xmm0");		# clear register bank
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&pxor	("xmm3","xmm3");
	&pxor	("xmm4","xmm4");
	&pxor	("xmm5","xmm5");
	&pxor	("xmm6","xmm6");
	&pxor	("xmm7","xmm7");
748 749 750 751 752 753 754 755 756 757 758 759 760 761 762
&function_end("aesni_ccm64_encrypt_blocks");

&function_begin("aesni_ccm64_decrypt_blocks");
	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));
	&mov	($rounds_,&wparam(4));
	&mov	($rounds,&wparam(5));
	&mov	($key_,"esp");
	&sub	("esp",60);
	&and	("esp",-16);			# align stack
	&mov	(&DWP(48,"esp"),$key_);

	&movdqu	($ivec,&QWP(0,$rounds_));	# load ivec
763
	&movdqu	($cmac,&QWP(0,$rounds));	# load cmac
764
	&mov	($rounds,&DWP(240,$key));
765 766 767 768 769 770 771 772

	# compose byte-swap control mask for pshufb on stack
	&mov	(&DWP(0,"esp"),0x0c0d0e0f);
	&mov	(&DWP(4,"esp"),0x08090a0b);
	&mov	(&DWP(8,"esp"),0x04050607);
	&mov	(&DWP(12,"esp"),0x00010203);

	# compose counter increment vector on stack
773
	&mov	($rounds_,1);
774
	&xor	($key_,$key_);
775
	&mov	(&DWP(16,"esp"),$rounds_);
776 777 778 779 780 781 782 783 784 785
	&mov	(&DWP(20,"esp"),$key_);
	&mov	(&DWP(24,"esp"),$key_);
	&mov	(&DWP(28,"esp"),$key_);

	&movdqa	($inout3,&QWP(0,"esp"));	# bswap mask
	&movdqa	($inout0,$ivec);

	&mov	($key_,$key);
	&mov	($rounds_,$rounds);

786
	&pshufb	($ivec,$inout3);
787 788 789 790
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}
791 792
	&shl	($rounds_,4);
	&mov	($rounds,16);
793
	&movups	($in0,&QWP(0,$inp));		# load inp
794
	&paddq	($ivec,&QWP(16,"esp"));
795
	&lea	($inp,&QWP(16,$inp));
796 797 798
	&sub	($rounds,$rounds_);
	&lea	($key,&DWP(32,$key_,$rounds_));
	&mov	($rounds_,$rounds);
799 800 801 802 803 804
	&jmp	(&label("ccm64_dec_outer"));

&set_label("ccm64_dec_outer",16);
	&xorps	($in0,$inout0);			# inp ^= E(ivec)
	&movdqa	($inout0,$ivec);
	&movups	(&QWP(0,$out),$in0);		# save output
805
	&lea	($out,&DWP(16,$out));
806
	&pshufb	($inout0,$inout3);
807

808
	&sub	($len,1);
809 810
	&jz	(&label("ccm64_dec_break"));

811
	&$movekey	($rndkey0,&QWP(0,$key_));
812
	&mov		($rounds,$rounds_);
813
	&$movekey	($rndkey1,&QWP(16,$key_));
814 815 816
	&xorps		($in0,$rndkey0);
	&xorps		($inout0,$rndkey0);
	&xorps		($cmac,$in0);		# cmac^=out
817
	&$movekey	($rndkey0,&QWP(32,$key_));
818

819 820 821
&set_label("ccm64_dec2_loop");
	&aesenc		($inout0,$rndkey1);
	&aesenc		($cmac,$rndkey1);
822 823
	&$movekey	($rndkey1,&QWP(0,$key,$rounds));
	&add		($rounds,32);
824 825
	&aesenc		($inout0,$rndkey0);
	&aesenc		($cmac,$rndkey0);
826
	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
827
	&jnz		(&label("ccm64_dec2_loop"));
828 829
	&movups		($in0,&QWP(0,$inp));	# load inp
	&paddq		($ivec,&QWP(16,"esp"));
830 831 832 833
	&aesenc		($inout0,$rndkey1);
	&aesenc		($cmac,$rndkey1);
	&aesenclast	($inout0,$rndkey0);
	&aesenclast	($cmac,$rndkey0);
834
	&lea		($inp,&QWP(16,$inp));
835 836 837
	&jmp	(&label("ccm64_dec_outer"));

&set_label("ccm64_dec_break",16);
838
	&mov	($rounds,&DWP(240,$key_));
839
	&mov	($key,$key_);
840
	if ($inline)
841
	{   &aesni_inline_generate1("enc",$cmac,$in0);	}
842
	else
843
	{   &call	("_aesni_encrypt1",$cmac);	}
844 845 846

	&mov	("esp",&DWP(48,"esp"));
	&mov	($out,&wparam(5));
847
	&movups	(&QWP(0,$out),$cmac);
848 849 850 851 852 853 854 855 856

	&pxor	("xmm0","xmm0");		# clear register bank
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&pxor	("xmm3","xmm3");
	&pxor	("xmm4","xmm4");
	&pxor	("xmm5","xmm5");
	&pxor	("xmm6","xmm6");
	&pxor	("xmm7","xmm7");
857
&function_end("aesni_ccm64_decrypt_blocks");
858
}
859 860

######################################################################
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# void aesni_ctr32_encrypt_blocks (const void *in, void *out,
#                         size_t blocks, const AES_KEY *key,
#                         const char *ivec);
864 865
#
# Handles only complete blocks, operates on 32-bit counter and
866
# does not update *ivec! (see crypto/modes/ctr128.c for details)
867
#
868 869 870 871 872 873 874 875
# stack layout:
#	0	pshufb mask
#	16	vector addend: 0,6,6,6
# 	32	counter-less ivec
#	48	1st triplet of counter vector
#	64	2nd triplet of counter vector
#	80	saved %esp

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&function_begin("aesni_ctr32_encrypt_blocks");
	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));
	&mov	($rounds_,&wparam(4));
	&mov	($key_,"esp");
883
	&sub	("esp",88);
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	&and	("esp",-16);			# align stack
885
	&mov	(&DWP(80,"esp"),$key_);
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887 888 889
	&cmp	($len,1);
	&je	(&label("ctr32_one_shortcut"));

890
	&movdqu	($inout5,&QWP(0,$rounds_));	# load ivec
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	# compose byte-swap control mask for pshufb on stack
	&mov	(&DWP(0,"esp"),0x0c0d0e0f);
	&mov	(&DWP(4,"esp"),0x08090a0b);
	&mov	(&DWP(8,"esp"),0x04050607);
	&mov	(&DWP(12,"esp"),0x00010203);

	# compose counter increment vector on stack
899
	&mov	($rounds,6);
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	&xor	($key_,$key_);
	&mov	(&DWP(16,"esp"),$rounds);
	&mov	(&DWP(20,"esp"),$rounds);
	&mov	(&DWP(24,"esp"),$rounds);
	&mov	(&DWP(28,"esp"),$key_);

906 907
	&pextrd	($rounds_,$inout5,3);		# pull 32-bit counter
	&pinsrd	($inout5,$key_,3);		# wipe 32-bit counter
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	&mov	($rounds,&DWP(240,$key));	# key->rounds

911
	# compose 2 vectors of 3x32-bit counters
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	&bswap	($rounds_);
913
	&pxor	($rndkey0,$rndkey0);
914
	&pxor	($rndkey1,$rndkey1);
915
	&movdqa	($inout0,&QWP(0,"esp"));	# load byte-swap mask
916
	&pinsrd	($rndkey0,$rounds_,0);
917
	&lea	($key_,&DWP(3,$rounds_));
918
	&pinsrd	($rndkey1,$key_,0);
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	&inc	($rounds_);
920
	&pinsrd	($rndkey0,$rounds_,1);
921
	&inc	($key_);
922
	&pinsrd	($rndkey1,$key_,1);
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	&inc	($rounds_);
924
	&pinsrd	($rndkey0,$rounds_,2);
925
	&inc	($key_);
926 927
	&pinsrd	($rndkey1,$key_,2);
	&movdqa	(&QWP(48,"esp"),$rndkey0);	# save 1st triplet
928
	&pshufb	($rndkey0,$inout0);		# byte swap
929 930 931
	&movdqu	($inout4,&QWP(0,$key));		# key[0]
	&movdqa	(&QWP(64,"esp"),$rndkey1);	# save 2nd triplet
	&pshufb	($rndkey1,$inout0);		# byte swap
932

933 934
	&pshufd	($inout0,$rndkey0,3<<6);	# place counter to upper dword
	&pshufd	($inout1,$rndkey0,2<<6);
935 936
	&cmp	($len,6);
	&jb	(&label("ctr32_tail"));
937 938 939 940
	&pxor	($inout5,$inout4);		# counter-less ivec^key[0]
	&shl	($rounds,4);
	&mov	($rounds_,16);
	&movdqa	(&QWP(32,"esp"),$inout5);	# save counter-less ivec^key[0]
941
	&mov	($key_,$key);			# backup $key
942 943
	&sub	($rounds_,$rounds);		# backup twisted $rounds
	&lea	($key,&DWP(32,$key,$rounds));
944 945 946 947
	&sub	($len,6);
	&jmp	(&label("ctr32_loop6"));

&set_label("ctr32_loop6",16);
948 949 950 951 952 953
	# inlining _aesni_encrypt6's prologue gives ~6% improvement...
	&pshufd	($inout2,$rndkey0,1<<6);
	&movdqa	($rndkey0,&QWP(32,"esp"));	# pull counter-less ivec
	&pshufd	($inout3,$rndkey1,3<<6);
	&pxor		($inout0,$rndkey0);	# merge counter-less ivec
	&pshufd	($inout4,$rndkey1,2<<6);
954
	&pxor		($inout1,$rndkey0);
955 956
	&pshufd	($inout5,$rndkey1,1<<6);
	&$movekey	($rndkey1,&QWP(16,$key_));
957 958
	&pxor		($inout2,$rndkey0);
	&pxor		($inout3,$rndkey0);
959
	&aesenc		($inout0,$rndkey1);
960 961
	&pxor		($inout4,$rndkey0);
	&pxor		($inout5,$rndkey0);
962 963 964 965 966
	&aesenc		($inout1,$rndkey1);
	&$movekey	($rndkey0,&QWP(32,$key_));
	&mov		($rounds,$rounds_);
	&aesenc		($inout2,$rndkey1);
	&aesenc		($inout3,$rndkey1);
967 968
	&aesenc		($inout4,$rndkey1);
	&aesenc		($inout5,$rndkey1);
969

970 971 972 973 974 975 976 977 978 979
	&call		(&label("_aesni_encrypt6_enter"));

	&movups	($rndkey1,&QWP(0,$inp));
	&movups	($rndkey0,&QWP(0x10,$inp));
	&xorps	($inout0,$rndkey1);
	&movups	($rndkey1,&QWP(0x20,$inp));
	&xorps	($inout1,$rndkey0);
	&movups	(&QWP(0,$out),$inout0);
	&movdqa	($rndkey0,&QWP(16,"esp"));	# load increment
	&xorps	($inout2,$rndkey1);
980
	&movdqa	($rndkey1,&QWP(64,"esp"));	# load 2nd triplet
981 982 983
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);

984 985
	&paddd	($rndkey1,$rndkey0);		# 2nd triplet increment
	&paddd	($rndkey0,&QWP(48,"esp"));	# 1st triplet increment
986 987 988 989 990 991 992
	&movdqa	($inout0,&QWP(0,"esp"));	# load byte swap mask

	&movups	($inout1,&QWP(0x30,$inp));
	&movups	($inout2,&QWP(0x40,$inp));
	&xorps	($inout3,$inout1);
	&movups	($inout1,&QWP(0x50,$inp));
	&lea	($inp,&DWP(0x60,$inp));
993 994
	&movdqa	(&QWP(48,"esp"),$rndkey0);	# save 1st triplet
	&pshufb	($rndkey0,$inout0);		# byte swap
995 996 997
	&xorps	($inout4,$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
	&xorps	($inout5,$inout1);
998 999
	&movdqa	(&QWP(64,"esp"),$rndkey1);	# save 2nd triplet
	&pshufb	($rndkey1,$inout0);		# byte swap
1000
	&movups	(&QWP(0x40,$out),$inout4);
1001
	&pshufd	($inout0,$rndkey0,3<<6);
1002 1003
	&movups	(&QWP(0x50,$out),$inout5);
	&lea	($out,&DWP(0x60,$out));
1004

1005
	&pshufd	($inout1,$rndkey0,2<<6);
1006 1007
	&sub	($len,6);
	&jnc	(&label("ctr32_loop6"));
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1009 1010
	&add	($len,6);
	&jz	(&label("ctr32_ret"));
1011
	&movdqu	($inout5,&QWP(0,$key_));
1012
	&mov	($key,$key_);
1013 1014
	&pxor	($inout5,&QWP(32,"esp"));	# restore count-less ivec
	&mov	($rounds,&DWP(240,$key_));	# restore $rounds
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&set_label("ctr32_tail");
1017
	&por	($inout0,$inout5);
1018
	&cmp	($len,2);
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	&jb	(&label("ctr32_one"));

1021
	&pshufd	($inout2,$rndkey0,1<<6);
1022 1023
	&por	($inout1,$inout5);
	&je	(&label("ctr32_two"));
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1025
	&pshufd	($inout3,$rndkey1,3<<6);
1026 1027 1028 1029
	&por	($inout2,$inout5);
	&cmp	($len,4);
	&jb	(&label("ctr32_three"));

1030
	&pshufd	($inout4,$rndkey1,2<<6);
1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
	&por	($inout3,$inout5);
	&je	(&label("ctr32_four"));

	&por	($inout4,$inout5);
	&call	("_aesni_encrypt6");
	&movups	($rndkey1,&QWP(0,$inp));
	&movups	($rndkey0,&QWP(0x10,$inp));
	&xorps	($inout0,$rndkey1);
	&movups	($rndkey1,&QWP(0x20,$inp));
	&xorps	($inout1,$rndkey0);
	&movups	($rndkey0,&QWP(0x30,$inp));
	&xorps	($inout2,$rndkey1);
	&movups	($rndkey1,&QWP(0x40,$inp));
	&xorps	($inout3,$rndkey0);
	&movups	(&QWP(0,$out),$inout0);
	&xorps	($inout4,$rndkey1);
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
	&movups	(&QWP(0x40,$out),$inout4);
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	&jmp	(&label("ctr32_ret"));

1053
&set_label("ctr32_one_shortcut",16);
1054
	&movups	($inout0,&QWP(0,$rounds_));	# load ivec
1055
	&mov	($rounds,&DWP(240,$key));
1056

1057
&set_label("ctr32_one");
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	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}
1062 1063 1064
	&movups	($in0,&QWP(0,$inp));
	&xorps	($in0,$inout0);
	&movups	(&QWP(0,$out),$in0);
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	&jmp	(&label("ctr32_ret"));
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&set_label("ctr32_two",16);
1068
	&call	("_aesni_encrypt2");
1069 1070 1071 1072 1073 1074
	&movups	($inout3,&QWP(0,$inp));
	&movups	($inout4,&QWP(0x10,$inp));
	&xorps	($inout0,$inout3);
	&xorps	($inout1,$inout4);
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
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	&jmp	(&label("ctr32_ret"));

&set_label("ctr32_three",16);
	&call	("_aesni_encrypt3");
1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103
	&movups	($inout3,&QWP(0,$inp));
	&movups	($inout4,&QWP(0x10,$inp));
	&xorps	($inout0,$inout3);
	&movups	($inout5,&QWP(0x20,$inp));
	&xorps	($inout1,$inout4);
	&movups	(&QWP(0,$out),$inout0);
	&xorps	($inout2,$inout5);
	&movups	(&QWP(0x10,$out),$inout1);
	&movups	(&QWP(0x20,$out),$inout2);
	&jmp	(&label("ctr32_ret"));

&set_label("ctr32_four",16);
	&call	("_aesni_encrypt4");
	&movups	($inout4,&QWP(0,$inp));
	&movups	($inout5,&QWP(0x10,$inp));
	&movups	($rndkey1,&QWP(0x20,$inp));
	&xorps	($inout0,$inout4);
	&movups	($rndkey0,&QWP(0x30,$inp));
	&xorps	($inout1,$inout5);
	&movups	(&QWP(0,$out),$inout0);
	&xorps	($inout2,$rndkey1);
	&movups	(&QWP(0x10,$out),$inout1);
	&xorps	($inout3,$rndkey0);
	&movups	(&QWP(0x20,$out),$inout2);
	&movups	(&QWP(0x30,$out),$inout3);
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&set_label("ctr32_ret");
1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
	&pxor	("xmm0","xmm0");		# clear register bank
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&pxor	("xmm3","xmm3");
	&pxor	("xmm4","xmm4");
	&movdqa	(&QWP(32,"esp"),"xmm0");	# clear stack
	&pxor	("xmm5","xmm5");
	&movdqa	(&QWP(48,"esp"),"xmm0");
	&pxor	("xmm6","xmm6");
	&movdqa	(&QWP(64,"esp"),"xmm0");
	&pxor	("xmm7","xmm7");
1117
	&mov	("esp",&DWP(80,"esp"));
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&function_end("aesni_ctr32_encrypt_blocks");
1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165

######################################################################
# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len,
#	const AES_KEY *key1, const AES_KEY *key2
#	const unsigned char iv[16]);
#
{ my ($tweak,$twtmp,$twres,$twmask)=($rndkey1,$rndkey0,$inout0,$inout1);

&function_begin("aesni_xts_encrypt");
	&mov	($key,&wparam(4));		# key2
	&mov	($inp,&wparam(5));		# clear-text tweak

	&mov	($rounds,&DWP(240,$key));	# key2->rounds
	&movups	($inout0,&QWP(0,$inp));
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}

	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));		# key1

	&mov	($key_,"esp");
	&sub	("esp",16*7+8);
	&mov	($rounds,&DWP(240,$key));	# key1->rounds
	&and	("esp",-16);			# align stack

	&mov	(&DWP(16*6+0,"esp"),0x87);	# compose the magic constant
	&mov	(&DWP(16*6+4,"esp"),0);
	&mov	(&DWP(16*6+8,"esp"),1);
	&mov	(&DWP(16*6+12,"esp"),0);
	&mov	(&DWP(16*7+0,"esp"),$len);	# save original $len
	&mov	(&DWP(16*7+4,"esp"),$key_);	# save original %esp

	&movdqa	($tweak,$inout0);
	&pxor	($twtmp,$twtmp);
	&movdqa	($twmask,&QWP(6*16,"esp"));	# 0x0...010...87
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits

	&and	($len,-16);
	&mov	($key_,$key);			# backup $key
	&mov	($rounds_,$rounds);		# backup $rounds
	&sub	($len,16*6);
	&jc	(&label("xts_enc_short"));

1166 1167 1168 1169
	&shl	($rounds,4);
	&mov	($rounds_,16);
	&sub	($rounds_,$rounds);
	&lea	($key,&DWP(32,$key,$rounds));
1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
	&jmp	(&label("xts_enc_loop6"));

&set_label("xts_enc_loop6",16);
	for ($i=0;$i<4;$i++) {
	    &pshufd	($twres,$twtmp,0x13);
	    &pxor	($twtmp,$twtmp);
	    &movdqa	(&QWP(16*$i,"esp"),$tweak);
	    &paddq	($tweak,$tweak);	# &psllq($tweak,1);
	    &pand	($twres,$twmask);	# isolate carry and residue
	    &pcmpgtd	($twtmp,$tweak);	# broadcast upper bits
	    &pxor	($tweak,$twres);
	}
	&pshufd	($inout5,$twtmp,0x13);
	&movdqa	(&QWP(16*$i++,"esp"),$tweak);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	 &$movekey	($rndkey0,&QWP(0,$key_));
	&pand	($inout5,$twmask);		# isolate carry and residue
	 &movups	($inout0,&QWP(0,$inp));	# load input
	&pxor	($inout5,$tweak);

	# inline _aesni_encrypt6 prologue and flip xor with tweak and key[0]
1191
	&mov	($rounds,$rounds_);		# restore $rounds
1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209
	&movdqu	($inout1,&QWP(16*1,$inp));
	 &xorps		($inout0,$rndkey0);	# input^=rndkey[0]
	&movdqu	($inout2,&QWP(16*2,$inp));
	 &pxor		($inout1,$rndkey0);
	&movdqu	($inout3,&QWP(16*3,$inp));
	 &pxor		($inout2,$rndkey0);
	&movdqu	($inout4,&QWP(16*4,$inp));
	 &pxor		($inout3,$rndkey0);
	&movdqu	($rndkey1,&QWP(16*5,$inp));
	 &pxor		($inout4,$rndkey0);
	&lea	($inp,&DWP(16*6,$inp));
	&pxor	($inout0,&QWP(16*0,"esp"));	# input^=tweak
	&movdqa	(&QWP(16*$i,"esp"),$inout5);	# save last tweak
	&pxor	($inout5,$rndkey1);

	 &$movekey	($rndkey1,&QWP(16,$key_));
	&pxor	($inout1,&QWP(16*1,"esp"));
	&pxor	($inout2,&QWP(16*2,"esp"));
1210
	 &aesenc	($inout0,$rndkey1);
1211 1212
	&pxor	($inout3,&QWP(16*3,"esp"));
	&pxor	($inout4,&QWP(16*4,"esp"));
1213
	 &aesenc	($inout1,$rndkey1);
1214
	&pxor		($inout5,$rndkey0);
1215 1216 1217
	 &$movekey	($rndkey0,&QWP(32,$key_));
	 &aesenc	($inout2,$rndkey1);
	 &aesenc	($inout3,$rndkey1);
1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249
	 &aesenc	($inout4,$rndkey1);
	 &aesenc	($inout5,$rndkey1);
	&call		(&label("_aesni_encrypt6_enter"));

	&movdqa	($tweak,&QWP(16*5,"esp"));	# last tweak
       &pxor	($twtmp,$twtmp);
	&xorps	($inout0,&QWP(16*0,"esp"));	# output^=tweak
       &pcmpgtd	($twtmp,$tweak);		# broadcast upper bits
	&xorps	($inout1,&QWP(16*1,"esp"));
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&xorps	($inout2,&QWP(16*2,"esp"));
	&movups	(&QWP(16*1,$out),$inout1);
	&xorps	($inout3,&QWP(16*3,"esp"));
	&movups	(&QWP(16*2,$out),$inout2);
	&xorps	($inout4,&QWP(16*4,"esp"));
	&movups	(&QWP(16*3,$out),$inout3);
	&xorps	($inout5,$tweak);
	&movups	(&QWP(16*4,$out),$inout4);
       &pshufd	($twres,$twtmp,0x13);
	&movups	(&QWP(16*5,$out),$inout5);
	&lea	($out,&DWP(16*6,$out));
       &movdqa	($twmask,&QWP(16*6,"esp"));	# 0x0...010...87

	&pxor	($twtmp,$twtmp);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);

	&sub	($len,16*6);
	&jnc	(&label("xts_enc_loop6"));

1250
	&mov	($rounds,&DWP(240,$key_));	# restore $rounds
1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
	&mov	($key,$key_);			# restore $key
	&mov	($rounds_,$rounds);

&set_label("xts_enc_short");
	&add	($len,16*6);
	&jz	(&label("xts_enc_done6x"));

	&movdqa	($inout3,$tweak);		# put aside previous tweak
	&cmp	($len,0x20);
	&jb	(&label("xts_enc_one"));

	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);
	&je	(&label("xts_enc_two"));

	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&movdqa	($inout4,$tweak);		# put aside previous tweak
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);
	&cmp	($len,0x40);
	&jb	(&label("xts_enc_three"));

	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&movdqa	($inout5,$tweak);		# put aside previous tweak
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);
	&movdqa	(&QWP(16*0,"esp"),$inout3);
	&movdqa	(&QWP(16*1,"esp"),$inout4);
	&je	(&label("xts_enc_four"));

	&movdqa	(&QWP(16*2,"esp"),$inout5);
	&pshufd	($inout5,$twtmp,0x13);
	&movdqa	(&QWP(16*3,"esp"),$tweak);
	&paddq	($tweak,$tweak);		# &psllq($inout0,1);
	&pand	($inout5,$twmask);		# isolate carry and residue
	&pxor	($inout5,$tweak);

	&movdqu	($inout0,&QWP(16*0,$inp));	# load input
	&movdqu	($inout1,&QWP(16*1,$inp));
	&movdqu	($inout2,&QWP(16*2,$inp));
	&pxor	($inout0,&QWP(16*0,"esp"));	# input^=tweak
	&movdqu	($inout3,&QWP(16*3,$inp));
	&pxor	($inout1,&QWP(16*1,"esp"));
	&movdqu	($inout4,&QWP(16*4,$inp));
	&pxor	($inout2,&QWP(16*2,"esp"));
	&lea	($inp,&DWP(16*5,$inp));
	&pxor	($inout3,&QWP(16*3,"esp"));
	&movdqa	(&QWP(16*4,"esp"),$inout5);	# save last tweak
	&pxor	($inout4,$inout5);

	&call	("_aesni_encrypt6");

	&movaps	($tweak,&QWP(16*4,"esp"));	# last tweak
	&xorps	($inout0,&QWP(16*0,"esp"));	# output^=tweak
	&xorps	($inout1,&QWP(16*1,"esp"));
	&xorps	($inout2,&QWP(16*2,"esp"));
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&xorps	($inout3,&QWP(16*3,"esp"));
	&movups	(&QWP(16*1,$out),$inout1);
	&xorps	($inout4,$tweak);
	&movups	(&QWP(16*2,$out),$inout2);
	&movups	(&QWP(16*3,$out),$inout3);
	&movups	(&QWP(16*4,$out),$inout4);
	&lea	($out,&DWP(16*5,$out));
	&jmp	(&label("xts_enc_done"));

&set_label("xts_enc_one",16);
	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&lea	($inp,&DWP(16*1,$inp));
	&xorps	($inout0,$inout3);		# input^=tweak
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}
	&xorps	($inout0,$inout3);		# output^=tweak
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&lea	($out,&DWP(16*1,$out));

	&movdqa	($tweak,$inout3);		# last tweak
	&jmp	(&label("xts_enc_done"));

&set_label("xts_enc_two",16);
	&movaps	($inout4,$tweak);		# put aside last tweak

	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&movups	($inout1,&QWP(16*1,$inp));
	&lea	($inp,&DWP(16*2,$inp));
	&xorps	($inout0,$inout3);		# input^=tweak
	&xorps	($inout1,$inout4);

1351
	&call	("_aesni_encrypt2");
1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457

	&xorps	($inout0,$inout3);		# output^=tweak
	&xorps	($inout1,$inout4);
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&movups	(&QWP(16*1,$out),$inout1);
	&lea	($out,&DWP(16*2,$out));

	&movdqa	($tweak,$inout4);		# last tweak
	&jmp	(&label("xts_enc_done"));

&set_label("xts_enc_three",16);
	&movaps	($inout5,$tweak);		# put aside last tweak
	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&movups	($inout1,&QWP(16*1,$inp));
	&movups	($inout2,&QWP(16*2,$inp));
	&lea	($inp,&DWP(16*3,$inp));
	&xorps	($inout0,$inout3);		# input^=tweak
	&xorps	($inout1,$inout4);
	&xorps	($inout2,$inout5);

	&call	("_aesni_encrypt3");

	&xorps	($inout0,$inout3);		# output^=tweak
	&xorps	($inout1,$inout4);
	&xorps	($inout2,$inout5);
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&movups	(&QWP(16*1,$out),$inout1);
	&movups	(&QWP(16*2,$out),$inout2);
	&lea	($out,&DWP(16*3,$out));

	&movdqa	($tweak,$inout5);		# last tweak
	&jmp	(&label("xts_enc_done"));

&set_label("xts_enc_four",16);
	&movaps	($inout4,$tweak);		# put aside last tweak

	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&movups	($inout1,&QWP(16*1,$inp));
	&movups	($inout2,&QWP(16*2,$inp));
	&xorps	($inout0,&QWP(16*0,"esp"));	# input^=tweak
	&movups	($inout3,&QWP(16*3,$inp));
	&lea	($inp,&DWP(16*4,$inp));
	&xorps	($inout1,&QWP(16*1,"esp"));
	&xorps	($inout2,$inout5);
	&xorps	($inout3,$inout4);

	&call	("_aesni_encrypt4");

	&xorps	($inout0,&QWP(16*0,"esp"));	# output^=tweak
	&xorps	($inout1,&QWP(16*1,"esp"));
	&xorps	($inout2,$inout5);
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&xorps	($inout3,$inout4);
	&movups	(&QWP(16*1,$out),$inout1);
	&movups	(&QWP(16*2,$out),$inout2);
	&movups	(&QWP(16*3,$out),$inout3);
	&lea	($out,&DWP(16*4,$out));

	&movdqa	($tweak,$inout4);		# last tweak
	&jmp	(&label("xts_enc_done"));

&set_label("xts_enc_done6x",16);		# $tweak is pre-calculated
	&mov	($len,&DWP(16*7+0,"esp"));	# restore original $len
	&and	($len,15);
	&jz	(&label("xts_enc_ret"));
	&movdqa	($inout3,$tweak);
	&mov	(&DWP(16*7+0,"esp"),$len);	# save $len%16
	&jmp	(&label("xts_enc_steal"));

&set_label("xts_enc_done",16);
	&mov	($len,&DWP(16*7+0,"esp"));	# restore original $len
	&pxor	($twtmp,$twtmp);
	&and	($len,15);
	&jz	(&label("xts_enc_ret"));

	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&mov	(&DWP(16*7+0,"esp"),$len);	# save $len%16
	&pshufd	($inout3,$twtmp,0x13);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($inout3,&QWP(16*6,"esp"));	# isolate carry and residue
	&pxor	($inout3,$tweak);

&set_label("xts_enc_steal");
	&movz	($rounds,&BP(0,$inp));
	&movz	($key,&BP(-16,$out));
	&lea	($inp,&DWP(1,$inp));
	&mov	(&BP(-16,$out),&LB($rounds));
	&mov	(&BP(0,$out),&LB($key));
	&lea	($out,&DWP(1,$out));
	&sub	($len,1);
	&jnz	(&label("xts_enc_steal"));

	&sub	($out,&DWP(16*7+0,"esp"));	# rewind $out
	&mov	($key,$key_);			# restore $key
	&mov	($rounds,$rounds_);		# restore $rounds

	&movups	($inout0,&QWP(-16,$out));	# load input
	&xorps	($inout0,$inout3);		# input^=tweak
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}
	&xorps	($inout0,$inout3);		# output^=tweak
	&movups	(&QWP(-16,$out),$inout0);	# write output

&set_label("xts_enc_ret");
1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471
	&pxor	("xmm0","xmm0");		# clear register bank
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&movdqa	(&QWP(16*0,"esp"),"xmm0");	# clear stack
	&pxor	("xmm3","xmm3");
	&movdqa	(&QWP(16*1,"esp"),"xmm0");
	&pxor	("xmm4","xmm4");
	&movdqa	(&QWP(16*2,"esp"),"xmm0");
	&pxor	("xmm5","xmm5");
	&movdqa	(&QWP(16*3,"esp"),"xmm0");
	&pxor	("xmm6","xmm6");
	&movdqa	(&QWP(16*4,"esp"),"xmm0");
	&pxor	("xmm7","xmm7");
	&movdqa	(&QWP(16*5,"esp"),"xmm0");
1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520
	&mov	("esp",&DWP(16*7+4,"esp"));	# restore %esp
&function_end("aesni_xts_encrypt");

&function_begin("aesni_xts_decrypt");
	&mov	($key,&wparam(4));		# key2
	&mov	($inp,&wparam(5));		# clear-text tweak

	&mov	($rounds,&DWP(240,$key));	# key2->rounds
	&movups	($inout0,&QWP(0,$inp));
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}

	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));		# key1

	&mov	($key_,"esp");
	&sub	("esp",16*7+8);
	&and	("esp",-16);			# align stack

	&xor	($rounds_,$rounds_);		# if(len%16) len-=16;
	&test	($len,15);
	&setnz	(&LB($rounds_));
	&shl	($rounds_,4);
	&sub	($len,$rounds_);

	&mov	(&DWP(16*6+0,"esp"),0x87);	# compose the magic constant
	&mov	(&DWP(16*6+4,"esp"),0);
	&mov	(&DWP(16*6+8,"esp"),1);
	&mov	(&DWP(16*6+12,"esp"),0);
	&mov	(&DWP(16*7+0,"esp"),$len);	# save original $len
	&mov	(&DWP(16*7+4,"esp"),$key_);	# save original %esp

	&mov	($rounds,&DWP(240,$key));	# key1->rounds
	&mov	($key_,$key);			# backup $key
	&mov	($rounds_,$rounds);		# backup $rounds

	&movdqa	($tweak,$inout0);
	&pxor	($twtmp,$twtmp);
	&movdqa	($twmask,&QWP(6*16,"esp"));	# 0x0...010...87
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits

	&and	($len,-16);
	&sub	($len,16*6);
	&jc	(&label("xts_dec_short"));

1521 1522 1523 1524
	&shl	($rounds,4);
	&mov	($rounds_,16);
	&sub	($rounds_,$rounds);
	&lea	($key,&DWP(32,$key,$rounds));
1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545
	&jmp	(&label("xts_dec_loop6"));

&set_label("xts_dec_loop6",16);
	for ($i=0;$i<4;$i++) {
	    &pshufd	($twres,$twtmp,0x13);
	    &pxor	($twtmp,$twtmp);
	    &movdqa	(&QWP(16*$i,"esp"),$tweak);
	    &paddq	($tweak,$tweak);	# &psllq($tweak,1);
	    &pand	($twres,$twmask);	# isolate carry and residue
	    &pcmpgtd	($twtmp,$tweak);	# broadcast upper bits
	    &pxor	($tweak,$twres);
	}
	&pshufd	($inout5,$twtmp,0x13);
	&movdqa	(&QWP(16*$i++,"esp"),$tweak);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	 &$movekey	($rndkey0,&QWP(0,$key_));
	&pand	($inout5,$twmask);		# isolate carry and residue
	 &movups	($inout0,&QWP(0,$inp));	# load input
	&pxor	($inout5,$tweak);

	# inline _aesni_encrypt6 prologue and flip xor with tweak and key[0]
1546
	&mov	($rounds,$rounds_);
1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564
	&movdqu	($inout1,&QWP(16*1,$inp));
	 &xorps		($inout0,$rndkey0);	# input^=rndkey[0]
	&movdqu	($inout2,&QWP(16*2,$inp));
	 &pxor		($inout1,$rndkey0);
	&movdqu	($inout3,&QWP(16*3,$inp));
	 &pxor		($inout2,$rndkey0);
	&movdqu	($inout4,&QWP(16*4,$inp));
	 &pxor		($inout3,$rndkey0);
	&movdqu	($rndkey1,&QWP(16*5,$inp));
	 &pxor		($inout4,$rndkey0);
	&lea	($inp,&DWP(16*6,$inp));
	&pxor	($inout0,&QWP(16*0,"esp"));	# input^=tweak
	&movdqa	(&QWP(16*$i,"esp"),$inout5);	# save last tweak
	&pxor	($inout5,$rndkey1);

	 &$movekey	($rndkey1,&QWP(16,$key_));
	&pxor	($inout1,&QWP(16*1,"esp"));
	&pxor	($inout2,&QWP(16*2,"esp"));
1565
	 &aesdec	($inout0,$rndkey1);
1566 1567
	&pxor	($inout3,&QWP(16*3,"esp"));
	&pxor	($inout4,&QWP(16*4,"esp"));
1568
	 &aesdec	($inout1,$rndkey1);
1569
	&pxor		($inout5,$rndkey0);
1570 1571 1572
	 &$movekey	($rndkey0,&QWP(32,$key_));
	 &aesdec	($inout2,$rndkey1);
	 &aesdec	($inout3,$rndkey1);
1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604
	 &aesdec	($inout4,$rndkey1);
	 &aesdec	($inout5,$rndkey1);
	&call		(&label("_aesni_decrypt6_enter"));

	&movdqa	($tweak,&QWP(16*5,"esp"));	# last tweak
       &pxor	($twtmp,$twtmp);
	&xorps	($inout0,&QWP(16*0,"esp"));	# output^=tweak
       &pcmpgtd	($twtmp,$tweak);		# broadcast upper bits
	&xorps	($inout1,&QWP(16*1,"esp"));
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&xorps	($inout2,&QWP(16*2,"esp"));
	&movups	(&QWP(16*1,$out),$inout1);
	&xorps	($inout3,&QWP(16*3,"esp"));
	&movups	(&QWP(16*2,$out),$inout2);
	&xorps	($inout4,&QWP(16*4,"esp"));
	&movups	(&QWP(16*3,$out),$inout3);
	&xorps	($inout5,$tweak);
	&movups	(&QWP(16*4,$out),$inout4);
       &pshufd	($twres,$twtmp,0x13);
	&movups	(&QWP(16*5,$out),$inout5);
	&lea	($out,&DWP(16*6,$out));
       &movdqa	($twmask,&QWP(16*6,"esp"));	# 0x0...010...87

	&pxor	($twtmp,$twtmp);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);

	&sub	($len,16*6);
	&jnc	(&label("xts_dec_loop6"));

1605
	&mov	($rounds,&DWP(240,$key_));	# restore $rounds
1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705
	&mov	($key,$key_);			# restore $key
	&mov	($rounds_,$rounds);

&set_label("xts_dec_short");
	&add	($len,16*6);
	&jz	(&label("xts_dec_done6x"));

	&movdqa	($inout3,$tweak);		# put aside previous tweak
	&cmp	($len,0x20);
	&jb	(&label("xts_dec_one"));

	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);
	&je	(&label("xts_dec_two"));

	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&movdqa	($inout4,$tweak);		# put aside previous tweak
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);
	&cmp	($len,0x40);
	&jb	(&label("xts_dec_three"));

	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&movdqa	($inout5,$tweak);		# put aside previous tweak
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);
	&movdqa	(&QWP(16*0,"esp"),$inout3);
	&movdqa	(&QWP(16*1,"esp"),$inout4);
	&je	(&label("xts_dec_four"));

	&movdqa	(&QWP(16*2,"esp"),$inout5);
	&pshufd	($inout5,$twtmp,0x13);
	&movdqa	(&QWP(16*3,"esp"),$tweak);
	&paddq	($tweak,$tweak);		# &psllq($inout0,1);
	&pand	($inout5,$twmask);		# isolate carry and residue
	&pxor	($inout5,$tweak);

	&movdqu	($inout0,&QWP(16*0,$inp));	# load input
	&movdqu	($inout1,&QWP(16*1,$inp));
	&movdqu	($inout2,&QWP(16*2,$inp));
	&pxor	($inout0,&QWP(16*0,"esp"));	# input^=tweak
	&movdqu	($inout3,&QWP(16*3,$inp));
	&pxor	($inout1,&QWP(16*1,"esp"));
	&movdqu	($inout4,&QWP(16*4,$inp));
	&pxor	($inout2,&QWP(16*2,"esp"));
	&lea	($inp,&DWP(16*5,$inp));
	&pxor	($inout3,&QWP(16*3,"esp"));
	&movdqa	(&QWP(16*4,"esp"),$inout5);	# save last tweak
	&pxor	($inout4,$inout5);

	&call	("_aesni_decrypt6");

	&movaps	($tweak,&QWP(16*4,"esp"));	# last tweak
	&xorps	($inout0,&QWP(16*0,"esp"));	# output^=tweak
	&xorps	($inout1,&QWP(16*1,"esp"));
	&xorps	($inout2,&QWP(16*2,"esp"));
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&xorps	($inout3,&QWP(16*3,"esp"));
	&movups	(&QWP(16*1,$out),$inout1);
	&xorps	($inout4,$tweak);
	&movups	(&QWP(16*2,$out),$inout2);
	&movups	(&QWP(16*3,$out),$inout3);
	&movups	(&QWP(16*4,$out),$inout4);
	&lea	($out,&DWP(16*5,$out));
	&jmp	(&label("xts_dec_done"));

&set_label("xts_dec_one",16);
	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&lea	($inp,&DWP(16*1,$inp));
	&xorps	($inout0,$inout3);		# input^=tweak
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}
	&xorps	($inout0,$inout3);		# output^=tweak
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&lea	($out,&DWP(16*1,$out));

	&movdqa	($tweak,$inout3);		# last tweak
	&jmp	(&label("xts_dec_done"));

&set_label("xts_dec_two",16);
	&movaps	($inout4,$tweak);		# put aside last tweak

	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&movups	($inout1,&QWP(16*1,$inp));
	&lea	($inp,&DWP(16*2,$inp));
	&xorps	($inout0,$inout3);		# input^=tweak
	&xorps	($inout1,$inout4);

1706
	&call	("_aesni_decrypt2");
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	&xorps	($inout0,$inout3);		# output^=tweak
	&xorps	($inout1,$inout4);
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&movups	(&QWP(16*1,$out),$inout1);
	&lea	($out,&DWP(16*2,$out));

	&movdqa	($tweak,$inout4);		# last tweak
	&jmp	(&label("xts_dec_done"));

&set_label("xts_dec_three",16);
	&movaps	($inout5,$tweak);		# put aside last tweak
	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&movups	($inout1,&QWP(16*1,$inp));
	&movups	($inout2,&QWP(16*2,$inp));
	&lea	($inp,&DWP(16*3,$inp));
	&xorps	($inout0,$inout3);		# input^=tweak
	&xorps	($inout1,$inout4);
	&xorps	($inout2,$inout5);

	&call	("_aesni_decrypt3");

	&xorps	($inout0,$inout3);		# output^=tweak
	&xorps	($inout1,$inout4);
	&xorps	($inout2,$inout5);
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&movups	(&QWP(16*1,$out),$inout1);
	&movups	(&QWP(16*2,$out),$inout2);
	&lea	($out,&DWP(16*3,$out));

	&movdqa	($tweak,$inout5);		# last tweak
	&jmp	(&label("xts_dec_done"));

&set_label("xts_dec_four",16);
	&movaps	($inout4,$tweak);		# put aside last tweak

	&movups	($inout0,&QWP(16*0,$inp));	# load input
	&movups	($inout1,&QWP(16*1,$inp));
	&movups	($inout2,&QWP(16*2,$inp));
	&xorps	($inout0,&QWP(16*0,"esp"));	# input^=tweak
	&movups	($inout3,&QWP(16*3,$inp));
	&lea	($inp,&DWP(16*4,$inp));
	&xorps	($inout1,&QWP(16*1,"esp"));
	&xorps	($inout2,$inout5);
	&xorps	($inout3,$inout4);

	&call	("_aesni_decrypt4");

	&xorps	($inout0,&QWP(16*0,"esp"));	# output^=tweak
	&xorps	($inout1,&QWP(16*1,"esp"));
	&xorps	($inout2,$inout5);
	&movups	(&QWP(16*0,$out),$inout0);	# write output
	&xorps	($inout3,$inout4);
	&movups	(&QWP(16*1,$out),$inout1);
	&movups	(&QWP(16*2,$out),$inout2);
	&movups	(&QWP(16*3,$out),$inout3);
	&lea	($out,&DWP(16*4,$out));

	&movdqa	($tweak,$inout4);		# last tweak
	&jmp	(&label("xts_dec_done"));

&set_label("xts_dec_done6x",16);		# $tweak is pre-calculated
	&mov	($len,&DWP(16*7+0,"esp"));	# restore original $len
	&and	($len,15);
	&jz	(&label("xts_dec_ret"));
	&mov	(&DWP(16*7+0,"esp"),$len);	# save $len%16
	&jmp	(&label("xts_dec_only_one_more"));

&set_label("xts_dec_done",16);
	&mov	($len,&DWP(16*7+0,"esp"));	# restore original $len
	&pxor	($twtmp,$twtmp);
	&and	($len,15);
	&jz	(&label("xts_dec_ret"));

	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&mov	(&DWP(16*7+0,"esp"),$len);	# save $len%16
	&pshufd	($twres,$twtmp,0x13);
	&pxor	($twtmp,$twtmp);
	&movdqa	($twmask,&QWP(16*6,"esp"));
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($twres,$twmask);		# isolate carry and residue
	&pcmpgtd($twtmp,$tweak);		# broadcast upper bits
	&pxor	($tweak,$twres);

&set_label("xts_dec_only_one_more");
	&pshufd	($inout3,$twtmp,0x13);
	&movdqa	($inout4,$tweak);		# put aside previous tweak
	&paddq	($tweak,$tweak);		# &psllq($tweak,1);
	&pand	($inout3,$twmask);		# isolate carry and residue
	&pxor	($inout3,$tweak);

	&mov	($key,$key_);			# restore $key
	&mov	($rounds,$rounds_);		# restore $rounds

	&movups	($inout0,&QWP(0,$inp));		# load input
	&xorps	($inout0,$inout3);		# input^=tweak
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}
	&xorps	($inout0,$inout3);		# output^=tweak
	&movups	(&QWP(0,$out),$inout0);		# write output

&set_label("xts_dec_steal");
	&movz	($rounds,&BP(16,$inp));
	&movz	($key,&BP(0,$out));
	&lea	($inp,&DWP(1,$inp));
	&mov	(&BP(0,$out),&LB($rounds));
	&mov	(&BP(16,$out),&LB($key));
	&lea	($out,&DWP(1,$out));
	&sub	($len,1);
	&jnz	(&label("xts_dec_steal"));

	&sub	($out,&DWP(16*7+0,"esp"));	# rewind $out
	&mov	($key,$key_);			# restore $key
	&mov	($rounds,$rounds_);		# restore $rounds

	&movups	($inout0,&QWP(0,$out));		# load input
	&xorps	($inout0,$inout4);		# input^=tweak
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}
	&xorps	($inout0,$inout4);		# output^=tweak
	&movups	(&QWP(0,$out),$inout0);		# write output

&set_label("xts_dec_ret");
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	&pxor	("xmm0","xmm0");		# clear register bank
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&movdqa	(&QWP(16*0,"esp"),"xmm0");	# clear stack
	&pxor	("xmm3","xmm3");
	&movdqa	(&QWP(16*1,"esp"),"xmm0");
	&pxor	("xmm4","xmm4");
	&movdqa	(&QWP(16*2,"esp"),"xmm0");
	&pxor	("xmm5","xmm5");
	&movdqa	(&QWP(16*3,"esp"),"xmm0");
	&pxor	("xmm6","xmm6");
	&movdqa	(&QWP(16*4,"esp"),"xmm0");
	&pxor	("xmm7","xmm7");
	&movdqa	(&QWP(16*5,"esp"),"xmm0");
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	&mov	("esp",&DWP(16*7+4,"esp"));	# restore %esp
&function_end("aesni_xts_decrypt");
}
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######################################################################
# void aesni_ocb_[en|de]crypt(const char *inp, char *out, size_t blocks,
#	const AES_KEY *key, unsigned int start_block_num,
#	unsigned char offset_i[16], const unsigned char L_[][16],
#	unsigned char checksum[16]);
#
{
# offsets within stack frame
my $checksum = 16*6;
my ($key_off,$rounds_off,$out_off,$end_off,$esp_off)=map(16*7+4*$_,(0..4));

# reassigned registers
my ($l_,$block,$i1,$i3,$i5) = ($rounds_,$key_,$rounds,$len,$out);
# $l_, $blocks, $inp, $key are permanently allocated in registers;
# remaining non-volatile ones are offloaded to stack, which even
# stay invariant after written to stack.

&function_begin("aesni_ocb_encrypt");
	&mov	($rounds,&wparam(5));		# &offset_i
	&mov	($rounds_,&wparam(7));		# &checksum

	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));
	&movdqu	($rndkey0,&QWP(0,$rounds));	# load offset_i
	&mov	($block,&wparam(4));		# start_block_num
	&movdqu	($rndkey1,&QWP(0,$rounds_));	# load checksum
	&mov	($l_,&wparam(6));		# L_

	&mov	($rounds,"esp");
	&sub	("esp",$esp_off+4);		# alloca
	&and	("esp",-16);			# align stack

	&sub	($out,$inp);
	&shl	($len,4);
	&lea	($len,&DWP(-16*6,$inp,$len));	# end of input - 16*6
	&mov	(&DWP($out_off,"esp"),$out);
	&mov	(&DWP($end_off,"esp"),$len);
	&mov	(&DWP($esp_off,"esp"),$rounds);

	&mov	($rounds,&DWP(240,$key));

	&test	($block,1);
	&jnz	(&label("odd"));

	&bsf		($i3,$block);
	&add		($block,1);
	&shl		($i3,4);
	&movdqu		($inout5,&QWP(0,$l_,$i3));
	&mov		($i3,$key);			# put aside key

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&lea		($inp,&DWP(16,$inp));

	&pxor		($inout5,$rndkey0);		# ^ last offset_i
	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,$inout5);		# ^ offset_i

	&movdqa		($inout4,$rndkey1);
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}

	&xorps		($inout0,$inout5);		# ^ offset_i
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movdqa		($rndkey1,$inout4);		# pass the checksum

	&movups		(&QWP(-16,$out,$inp),$inout0);	# store output

	&mov		($rounds,&DWP(240,$i3));
	&mov		($key,$i3);			# restore key
	&mov		($len,&DWP($end_off,"esp"));

&set_label("odd");
	&shl		($rounds,4);
	&mov		($out,16);
	&sub		($out,$rounds);			# twisted rounds
	&mov		(&DWP($key_off,"esp"),$key);
	&lea		($key,&DWP(32,$key,$rounds));	# end of key schedule
	&mov		(&DWP($rounds_off,"esp"),$out);

	&cmp		($inp,$len);
	&ja		(&label("short"));
	&jmp		(&label("grandloop"));

&set_label("grandloop",32);
	&lea		($i1,&DWP(1,$block));
	&lea		($i3,&DWP(3,$block));
	&lea		($i5,&DWP(5,$block));
	&add		($block,6);
	&bsf		($i1,$i1);
	&bsf		($i3,$i3);
	&bsf		($i5,$i5);
	&shl		($i1,4);
	&shl		($i3,4);
	&shl		($i5,4);
	&movdqu		($inout0,&QWP(0,$l_));
	&movdqu		($inout1,&QWP(0,$l_,$i1));
	&mov		($rounds,&DWP($rounds_off,"esp"));
	&movdqa		($inout2,$inout0);
	&movdqu		($inout3,&QWP(0,$l_,$i3));
	&movdqa		($inout4,$inout0);
	&movdqu		($inout5,&QWP(0,$l_,$i5));

	&pxor		($inout0,$rndkey0);		# ^ last offset_i
	&pxor		($inout1,$inout0);
	&movdqa		(&QWP(16*0,"esp"),$inout0);
	&pxor		($inout2,$inout1);
	&movdqa		(&QWP(16*1,"esp"),$inout1);
	&pxor		($inout3,$inout2);
	&movdqa		(&QWP(16*2,"esp"),$inout2);
	&pxor		($inout4,$inout3);
	&movdqa		(&QWP(16*3,"esp"),$inout3);
	&pxor		($inout5,$inout4);
	&movdqa		(&QWP(16*4,"esp"),$inout4);
	&movdqa		(&QWP(16*5,"esp"),$inout5);

	&$movekey	($rndkey0,&QWP(-48,$key,$rounds));
	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&movdqu		($inout2,&QWP(16*2,$inp));
	&movdqu		($inout3,&QWP(16*3,$inp));
	&movdqu		($inout4,&QWP(16*4,$inp));
	&movdqu		($inout5,&QWP(16*5,$inp));
	&lea		($inp,&DWP(16*6,$inp));

	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,$rndkey0);		# ^ roundkey[0]
	&pxor		($rndkey1,$inout1);
	&pxor		($inout1,$rndkey0);
	&pxor		($rndkey1,$inout2);
	&pxor		($inout2,$rndkey0);
	&pxor		($rndkey1,$inout3);
	&pxor		($inout3,$rndkey0);
	&pxor		($rndkey1,$inout4);
	&pxor		($inout4,$rndkey0);
	&pxor		($rndkey1,$inout5);
	&pxor		($inout5,$rndkey0);
	&movdqa		(&QWP($checksum,"esp"),$rndkey1);

	&$movekey	($rndkey1,&QWP(-32,$key,$rounds));
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,&QWP(16*4,"esp"));
	&pxor		($inout5,&QWP(16*5,"esp"));

	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
	&aesenc		($inout0,$rndkey1);
	&aesenc		($inout1,$rndkey1);
	&aesenc		($inout2,$rndkey1);
	&aesenc		($inout3,$rndkey1);
	&aesenc		($inout4,$rndkey1);
	&aesenc		($inout5,$rndkey1);

	&mov		($out,&DWP($out_off,"esp"));
	&mov		($len,&DWP($end_off,"esp"));
	&call		("_aesni_encrypt6_enter");

	&movdqa		($rndkey0,&QWP(16*5,"esp"));	# pass last offset_i
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,&QWP(16*4,"esp"));
	&pxor		($inout5,$rndkey0);
	&movdqa		($rndkey1,&QWP($checksum,"esp"));# pass the checksum

	&movdqu		(&QWP(-16*6,$out,$inp),$inout0);# store output
	&movdqu		(&QWP(-16*5,$out,$inp),$inout1);
	&movdqu		(&QWP(-16*4,$out,$inp),$inout2);
	&movdqu		(&QWP(-16*3,$out,$inp),$inout3);
	&movdqu		(&QWP(-16*2,$out,$inp),$inout4);
	&movdqu		(&QWP(-16*1,$out,$inp),$inout5);
	&cmp		($inp,$len);			# done yet?
	&jb		(&label("grandloop"));

&set_label("short");
	&add		($len,16*6);
	&sub		($len,$inp);
	&jz		(&label("done"));

	&cmp		($len,16*2);
	&jb		(&label("one"));
	&je		(&label("two"));

	&cmp		($len,16*4);
	&jb		(&label("three"));
	&je		(&label("four"));

	&lea		($i1,&DWP(1,$block));
	&lea		($i3,&DWP(3,$block));
	&bsf		($i1,$i1);
	&bsf		($i3,$i3);
	&shl		($i1,4);
	&shl		($i3,4);
	&movdqu		($inout0,&QWP(0,$l_));
	&movdqu		($inout1,&QWP(0,$l_,$i1));
	&mov		($rounds,&DWP($rounds_off,"esp"));
	&movdqa		($inout2,$inout0);
	&movdqu		($inout3,&QWP(0,$l_,$i3));
	&movdqa		($inout4,$inout0);

	&pxor		($inout0,$rndkey0);		# ^ last offset_i
	&pxor		($inout1,$inout0);
	&movdqa		(&QWP(16*0,"esp"),$inout0);
	&pxor		($inout2,$inout1);
	&movdqa		(&QWP(16*1,"esp"),$inout1);
	&pxor		($inout3,$inout2);
	&movdqa		(&QWP(16*2,"esp"),$inout2);
	&pxor		($inout4,$inout3);
	&movdqa		(&QWP(16*3,"esp"),$inout3);
	&pxor		($inout5,$inout4);
	&movdqa		(&QWP(16*4,"esp"),$inout4);

	&$movekey	($rndkey0,&QWP(-48,$key,$rounds));
	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&movdqu		($inout2,&QWP(16*2,$inp));
	&movdqu		($inout3,&QWP(16*3,$inp));
	&movdqu		($inout4,&QWP(16*4,$inp));
	&pxor		($inout5,$inout5);

	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,$rndkey0);		# ^ roundkey[0]
	&pxor		($rndkey1,$inout1);
	&pxor		($inout1,$rndkey0);
	&pxor		($rndkey1,$inout2);
	&pxor		($inout2,$rndkey0);
	&pxor		($rndkey1,$inout3);
	&pxor		($inout3,$rndkey0);
	&pxor		($rndkey1,$inout4);
	&pxor		($inout4,$rndkey0);
	&movdqa		(&QWP($checksum,"esp"),$rndkey1);

	&$movekey	($rndkey1,&QWP(-32,$key,$rounds));
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,&QWP(16*4,"esp"));

	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
	&aesenc		($inout0,$rndkey1);
	&aesenc		($inout1,$rndkey1);
	&aesenc		($inout2,$rndkey1);
	&aesenc		($inout3,$rndkey1);
	&aesenc		($inout4,$rndkey1);
	&aesenc		($inout5,$rndkey1);

	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_encrypt6_enter");

	&movdqa		($rndkey0,&QWP(16*4,"esp"));	# pass last offset_i
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,$rndkey0);
	&movdqa		($rndkey1,&QWP($checksum,"esp"));# pass the checksum

	&movdqu		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&movdqu		(&QWP(16*1,$out,$inp),$inout1);
	&movdqu		(&QWP(16*2,$out,$inp),$inout2);
	&movdqu		(&QWP(16*3,$out,$inp),$inout3);
	&movdqu		(&QWP(16*4,$out,$inp),$inout4);

	&jmp		(&label("done"));

&set_label("one",16);
	&movdqu		($inout5,&QWP(0,$l_));
	&mov		($key,&DWP($key_off,"esp"));	# restore key

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&mov		($rounds,&DWP(240,$key));

	&pxor		($inout5,$rndkey0);		# ^ last offset_i
	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,$inout5);		# ^ offset_i

	&movdqa		($inout4,$rndkey1);
	&mov		($out,&DWP($out_off,"esp"));
	if ($inline)
	{   &aesni_inline_generate1("enc");	}
	else
	{   &call	("_aesni_encrypt1");	}

	&xorps		($inout0,$inout5);		# ^ offset_i
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movdqa		($rndkey1,$inout4);		# pass the checksum
	&movups		(&QWP(0,$out,$inp),$inout0);

	&jmp		(&label("done"));

&set_label("two",16);
	&lea		($i1,&DWP(1,$block));
	&mov		($key,&DWP($key_off,"esp"));	# restore key
	&bsf		($i1,$i1);
	&shl		($i1,4);
	&movdqu		($inout4,&QWP(0,$l_));
	&movdqu		($inout5,&QWP(0,$l_,$i1));

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&mov		($rounds,&DWP(240,$key));

	&pxor		($inout4,$rndkey0);		# ^ last offset_i
	&pxor		($inout5,$inout4);

	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,$inout4);		# ^ offset_i
	&pxor		($rndkey1,$inout1);
	&pxor		($inout1,$inout5);

	&movdqa		($inout3,$rndkey1)
	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_encrypt2");

	&xorps		($inout0,$inout4);		# ^ offset_i
	&xorps		($inout1,$inout5);
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movdqa		($rndkey1,$inout3);		# pass the checksum
	&movups		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&movups		(&QWP(16*1,$out,$inp),$inout1);

	&jmp		(&label("done"));

&set_label("three",16);
	&lea		($i1,&DWP(1,$block));
	&mov		($key,&DWP($key_off,"esp"));	# restore key
	&bsf		($i1,$i1);
	&shl		($i1,4);
	&movdqu		($inout3,&QWP(0,$l_));
	&movdqu		($inout4,&QWP(0,$l_,$i1));
	&movdqa		($inout5,$inout3);

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&movdqu		($inout2,&QWP(16*2,$inp));
	&mov		($rounds,&DWP(240,$key));

	&pxor		($inout3,$rndkey0);		# ^ last offset_i
	&pxor		($inout4,$inout3);
	&pxor		($inout5,$inout4);

	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,$inout3);		# ^ offset_i
	&pxor		($rndkey1,$inout1);
	&pxor		($inout1,$inout4);
	&pxor		($rndkey1,$inout2);
	&pxor		($inout2,$inout5);

	&movdqa		(&QWP($checksum,"esp"),$rndkey1);
	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_encrypt3");

	&xorps		($inout0,$inout3);		# ^ offset_i
	&xorps		($inout1,$inout4);
	&xorps		($inout2,$inout5);
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movdqa		($rndkey1,&QWP($checksum,"esp"));# pass the checksum
	&movups		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&movups		(&QWP(16*1,$out,$inp),$inout1);
	&movups		(&QWP(16*2,$out,$inp),$inout2);

	&jmp		(&label("done"));

&set_label("four",16);
	&lea		($i1,&DWP(1,$block));
	&lea		($i3,&DWP(3,$block));
	&bsf		($i1,$i1);
	&bsf		($i3,$i3);
	&mov		($key,&DWP($key_off,"esp"));	# restore key
	&shl		($i1,4);
	&shl		($i3,4);
	&movdqu		($inout2,&QWP(0,$l_));
	&movdqu		($inout3,&QWP(0,$l_,$i1));
	&movdqa		($inout4,$inout2);
	&movdqu		($inout5,&QWP(0,$l_,$i3));

	&pxor		($inout2,$rndkey0);		# ^ last offset_i
	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&pxor		($inout3,$inout2);
	&movdqu		($inout1,&QWP(16*1,$inp));
	&pxor		($inout4,$inout3);
	&movdqa		(&QWP(16*0,"esp"),$inout2);
	&pxor		($inout5,$inout4);
	&movdqa		(&QWP(16*1,"esp"),$inout3);
	&movdqu		($inout2,&QWP(16*2,$inp));
	&movdqu		($inout3,&QWP(16*3,$inp));
	&mov		($rounds,&DWP(240,$key));

	&pxor		($rndkey1,$inout0);		# checksum
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($rndkey1,$inout1);
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($rndkey1,$inout2);
	&pxor		($inout2,$inout4);
	&pxor		($rndkey1,$inout3);
	&pxor		($inout3,$inout5);

	&movdqa		(&QWP($checksum,"esp"),$rndkey1)
	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_encrypt4");

	&xorps		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&xorps		($inout1,&QWP(16*1,"esp"));
	&xorps		($inout2,$inout4);
	&movups		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&xorps		($inout3,$inout5);
	&movups		(&QWP(16*1,$out,$inp),$inout1);
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movups		(&QWP(16*2,$out,$inp),$inout2);
	&movdqa		($rndkey1,&QWP($checksum,"esp"));# pass the checksum
	&movups		(&QWP(16*3,$out,$inp),$inout3);

&set_label("done");
	&mov	($key,&DWP($esp_off,"esp"));
	&pxor	($inout0,$inout0);		# clear register bank
	&pxor	($inout1,$inout1);
	&movdqa	(&QWP(16*0,"esp"),$inout0);	# clear stack
	&pxor	($inout2,$inout2);
	&movdqa	(&QWP(16*1,"esp"),$inout0);
	&pxor	($inout3,$inout3);
	&movdqa	(&QWP(16*2,"esp"),$inout0);
	&pxor	($inout4,$inout4);
	&movdqa	(&QWP(16*3,"esp"),$inout0);
	&pxor	($inout5,$inout5);
	&movdqa	(&QWP(16*4,"esp"),$inout0);
	&movdqa	(&QWP(16*5,"esp"),$inout0);
	&movdqa	(&QWP(16*6,"esp"),$inout0);

	&lea	("esp",&DWP(0,$key));
	&mov	($rounds,&wparam(5));		# &offset_i
	&mov	($rounds_,&wparam(7));		# &checksum
	&movdqu	(&QWP(0,$rounds),$rndkey0);
	&pxor	($rndkey0,$rndkey0);
	&movdqu	(&QWP(0,$rounds_),$rndkey1);
	&pxor	($rndkey1,$rndkey1);
&function_end("aesni_ocb_encrypt");

&function_begin("aesni_ocb_decrypt");
	&mov	($rounds,&wparam(5));		# &offset_i
	&mov	($rounds_,&wparam(7));		# &checksum

	&mov	($inp,&wparam(0));
	&mov	($out,&wparam(1));
	&mov	($len,&wparam(2));
	&mov	($key,&wparam(3));
	&movdqu	($rndkey0,&QWP(0,$rounds));	# load offset_i
	&mov	($block,&wparam(4));		# start_block_num
	&movdqu	($rndkey1,&QWP(0,$rounds_));	# load checksum
	&mov	($l_,&wparam(6));		# L_

	&mov	($rounds,"esp");
	&sub	("esp",$esp_off+4);		# alloca
	&and	("esp",-16);			# align stack

	&sub	($out,$inp);
	&shl	($len,4);
	&lea	($len,&DWP(-16*6,$inp,$len));	# end of input - 16*6
	&mov	(&DWP($out_off,"esp"),$out);
	&mov	(&DWP($end_off,"esp"),$len);
	&mov	(&DWP($esp_off,"esp"),$rounds);

	&mov	($rounds,&DWP(240,$key));

	&test	($block,1);
	&jnz	(&label("odd"));

	&bsf		($i3,$block);
	&add		($block,1);
	&shl		($i3,4);
	&movdqu		($inout5,&QWP(0,$l_,$i3));
	&mov		($i3,$key);			# put aside key

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&lea		($inp,&DWP(16,$inp));

	&pxor		($inout5,$rndkey0);		# ^ last offset_i
	&pxor		($inout0,$inout5);		# ^ offset_i

	&movdqa		($inout4,$rndkey1);
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}

	&xorps		($inout0,$inout5);		# ^ offset_i
	&movaps		($rndkey1,$inout4);		# pass the checksum
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&xorps		($rndkey1,$inout0);		# checksum
	&movups		(&QWP(-16,$out,$inp),$inout0);	# store output

	&mov		($rounds,&DWP(240,$i3));
	&mov		($key,$i3);			# restore key
	&mov		($len,&DWP($end_off,"esp"));

&set_label("odd");
	&shl		($rounds,4);
	&mov		($out,16);
	&sub		($out,$rounds);			# twisted rounds
	&mov		(&DWP($key_off,"esp"),$key);
	&lea		($key,&DWP(32,$key,$rounds));	# end of key schedule
	&mov		(&DWP($rounds_off,"esp"),$out);

	&cmp		($inp,$len);
	&ja		(&label("short"));
	&jmp		(&label("grandloop"));

&set_label("grandloop",32);
	&lea		($i1,&DWP(1,$block));
	&lea		($i3,&DWP(3,$block));
	&lea		($i5,&DWP(5,$block));
	&add		($block,6);
	&bsf		($i1,$i1);
	&bsf		($i3,$i3);
	&bsf		($i5,$i5);
	&shl		($i1,4);
	&shl		($i3,4);
	&shl		($i5,4);
	&movdqu		($inout0,&QWP(0,$l_));
	&movdqu		($inout1,&QWP(0,$l_,$i1));
	&mov		($rounds,&DWP($rounds_off,"esp"));
	&movdqa		($inout2,$inout0);
	&movdqu		($inout3,&QWP(0,$l_,$i3));
	&movdqa		($inout4,$inout0);
	&movdqu		($inout5,&QWP(0,$l_,$i5));

	&pxor		($inout0,$rndkey0);		# ^ last offset_i
	&pxor		($inout1,$inout0);
	&movdqa		(&QWP(16*0,"esp"),$inout0);
	&pxor		($inout2,$inout1);
	&movdqa		(&QWP(16*1,"esp"),$inout1);
	&pxor		($inout3,$inout2);
	&movdqa		(&QWP(16*2,"esp"),$inout2);
	&pxor		($inout4,$inout3);
	&movdqa		(&QWP(16*3,"esp"),$inout3);
	&pxor		($inout5,$inout4);
	&movdqa		(&QWP(16*4,"esp"),$inout4);
	&movdqa		(&QWP(16*5,"esp"),$inout5);

	&$movekey	($rndkey0,&QWP(-48,$key,$rounds));
	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&movdqu		($inout2,&QWP(16*2,$inp));
	&movdqu		($inout3,&QWP(16*3,$inp));
	&movdqu		($inout4,&QWP(16*4,$inp));
	&movdqu		($inout5,&QWP(16*5,$inp));
	&lea		($inp,&DWP(16*6,$inp));

	&movdqa		(&QWP($checksum,"esp"),$rndkey1);
	&pxor		($inout0,$rndkey0);		# ^ roundkey[0]
	&pxor		($inout1,$rndkey0);
	&pxor		($inout2,$rndkey0);
	&pxor		($inout3,$rndkey0);
	&pxor		($inout4,$rndkey0);
	&pxor		($inout5,$rndkey0);

	&$movekey	($rndkey1,&QWP(-32,$key,$rounds));
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,&QWP(16*4,"esp"));
	&pxor		($inout5,&QWP(16*5,"esp"));

	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
	&aesdec		($inout0,$rndkey1);
	&aesdec		($inout1,$rndkey1);
	&aesdec		($inout2,$rndkey1);
	&aesdec		($inout3,$rndkey1);
	&aesdec		($inout4,$rndkey1);
	&aesdec		($inout5,$rndkey1);

	&mov		($out,&DWP($out_off,"esp"));
	&mov		($len,&DWP($end_off,"esp"));
	&call		("_aesni_decrypt6_enter");

	&movdqa		($rndkey0,&QWP(16*5,"esp"));	# pass last offset_i
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&movdqa		($rndkey1,&QWP($checksum,"esp"));
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,&QWP(16*4,"esp"));
	&pxor		($inout5,$rndkey0);

	&pxor		($rndkey1,$inout0);		# checksum
	&movdqu		(&QWP(-16*6,$out,$inp),$inout0);# store output
	&pxor		($rndkey1,$inout1);
	&movdqu		(&QWP(-16*5,$out,$inp),$inout1);
	&pxor		($rndkey1,$inout2);
	&movdqu		(&QWP(-16*4,$out,$inp),$inout2);
	&pxor		($rndkey1,$inout3);
	&movdqu		(&QWP(-16*3,$out,$inp),$inout3);
	&pxor		($rndkey1,$inout4);
	&movdqu		(&QWP(-16*2,$out,$inp),$inout4);
	&pxor		($rndkey1,$inout5);
	&movdqu		(&QWP(-16*1,$out,$inp),$inout5);
	&cmp		($inp,$len);			# done yet?
	&jb		(&label("grandloop"));

&set_label("short");
	&add		($len,16*6);
	&sub		($len,$inp);
	&jz		(&label("done"));

	&cmp		($len,16*2);
	&jb		(&label("one"));
	&je		(&label("two"));

	&cmp		($len,16*4);
	&jb		(&label("three"));
	&je		(&label("four"));

	&lea		($i1,&DWP(1,$block));
	&lea		($i3,&DWP(3,$block));
	&bsf		($i1,$i1);
	&bsf		($i3,$i3);
	&shl		($i1,4);
	&shl		($i3,4);
	&movdqu		($inout0,&QWP(0,$l_));
	&movdqu		($inout1,&QWP(0,$l_,$i1));
	&mov		($rounds,&DWP($rounds_off,"esp"));
	&movdqa		($inout2,$inout0);
	&movdqu		($inout3,&QWP(0,$l_,$i3));
	&movdqa		($inout4,$inout0);

	&pxor		($inout0,$rndkey0);		# ^ last offset_i
	&pxor		($inout1,$inout0);
	&movdqa		(&QWP(16*0,"esp"),$inout0);
	&pxor		($inout2,$inout1);
	&movdqa		(&QWP(16*1,"esp"),$inout1);
	&pxor		($inout3,$inout2);
	&movdqa		(&QWP(16*2,"esp"),$inout2);
	&pxor		($inout4,$inout3);
	&movdqa		(&QWP(16*3,"esp"),$inout3);
	&pxor		($inout5,$inout4);
	&movdqa		(&QWP(16*4,"esp"),$inout4);

	&$movekey	($rndkey0,&QWP(-48,$key,$rounds));
	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&movdqu		($inout2,&QWP(16*2,$inp));
	&movdqu		($inout3,&QWP(16*3,$inp));
	&movdqu		($inout4,&QWP(16*4,$inp));
	&pxor		($inout5,$inout5);

	&movdqa		(&QWP($checksum,"esp"),$rndkey1);
	&pxor		($inout0,$rndkey0);		# ^ roundkey[0]
	&pxor		($inout1,$rndkey0);
	&pxor		($inout2,$rndkey0);
	&pxor		($inout3,$rndkey0);
	&pxor		($inout4,$rndkey0);

	&$movekey	($rndkey1,&QWP(-32,$key,$rounds));
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,&QWP(16*4,"esp"));

	&$movekey	($rndkey0,&QWP(-16,$key,$rounds));
	&aesdec		($inout0,$rndkey1);
	&aesdec		($inout1,$rndkey1);
	&aesdec		($inout2,$rndkey1);
	&aesdec		($inout3,$rndkey1);
	&aesdec		($inout4,$rndkey1);
	&aesdec		($inout5,$rndkey1);

	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_decrypt6_enter");

	&movdqa		($rndkey0,&QWP(16*4,"esp"));	# pass last offset_i
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&movdqa		($rndkey1,&QWP($checksum,"esp"));
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,&QWP(16*2,"esp"));
	&pxor		($inout3,&QWP(16*3,"esp"));
	&pxor		($inout4,$rndkey0);

	&pxor		($rndkey1,$inout0);		# checksum
	&movdqu		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&pxor		($rndkey1,$inout1);
	&movdqu		(&QWP(16*1,$out,$inp),$inout1);
	&pxor		($rndkey1,$inout2);
	&movdqu		(&QWP(16*2,$out,$inp),$inout2);
	&pxor		($rndkey1,$inout3);
	&movdqu		(&QWP(16*3,$out,$inp),$inout3);
	&pxor		($rndkey1,$inout4);
	&movdqu		(&QWP(16*4,$out,$inp),$inout4);

	&jmp		(&label("done"));

&set_label("one",16);
	&movdqu		($inout5,&QWP(0,$l_));
	&mov		($key,&DWP($key_off,"esp"));	# restore key

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&mov		($rounds,&DWP(240,$key));

	&pxor		($inout5,$rndkey0);		# ^ last offset_i
	&pxor		($inout0,$inout5);		# ^ offset_i

	&movdqa		($inout4,$rndkey1);
	&mov		($out,&DWP($out_off,"esp"));
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}

	&xorps		($inout0,$inout5);		# ^ offset_i
	&movaps		($rndkey1,$inout4);		# pass the checksum
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&xorps		($rndkey1,$inout0);		# checksum
	&movups		(&QWP(0,$out,$inp),$inout0);

	&jmp		(&label("done"));

&set_label("two",16);
	&lea		($i1,&DWP(1,$block));
	&mov		($key,&DWP($key_off,"esp"));	# restore key
	&bsf		($i1,$i1);
	&shl		($i1,4);
	&movdqu		($inout4,&QWP(0,$l_));
	&movdqu		($inout5,&QWP(0,$l_,$i1));

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&mov		($rounds,&DWP(240,$key));

	&movdqa		($inout3,$rndkey1);
	&pxor		($inout4,$rndkey0);		# ^ last offset_i
	&pxor		($inout5,$inout4);

	&pxor		($inout0,$inout4);		# ^ offset_i
	&pxor		($inout1,$inout5);

	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_decrypt2");

	&xorps		($inout0,$inout4);		# ^ offset_i
	&xorps		($inout1,$inout5);
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&xorps		($inout3,$inout0);		# checksum
	&movups		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&xorps		($inout3,$inout1);
	&movups		(&QWP(16*1,$out,$inp),$inout1);
	&movaps		($rndkey1,$inout3);		# pass the checksum

	&jmp		(&label("done"));

&set_label("three",16);
	&lea		($i1,&DWP(1,$block));
	&mov		($key,&DWP($key_off,"esp"));	# restore key
	&bsf		($i1,$i1);
	&shl		($i1,4);
	&movdqu		($inout3,&QWP(0,$l_));
	&movdqu		($inout4,&QWP(0,$l_,$i1));
	&movdqa		($inout5,$inout3);

	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&movdqu		($inout1,&QWP(16*1,$inp));
	&movdqu		($inout2,&QWP(16*2,$inp));
	&mov		($rounds,&DWP(240,$key));

	&movdqa		(&QWP($checksum,"esp"),$rndkey1);
	&pxor		($inout3,$rndkey0);		# ^ last offset_i
	&pxor		($inout4,$inout3);
	&pxor		($inout5,$inout4);

	&pxor		($inout0,$inout3);		# ^ offset_i
	&pxor		($inout1,$inout4);
	&pxor		($inout2,$inout5);

	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_decrypt3");

	&movdqa		($rndkey1,&QWP($checksum,"esp"));# pass the checksum
	&xorps		($inout0,$inout3);		# ^ offset_i
	&xorps		($inout1,$inout4);
	&xorps		($inout2,$inout5);
	&movups		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&pxor		($rndkey1,$inout0);		# checksum
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movups		(&QWP(16*1,$out,$inp),$inout1);
	&pxor		($rndkey1,$inout1);
	&movups		(&QWP(16*2,$out,$inp),$inout2);
	&pxor		($rndkey1,$inout2);

	&jmp		(&label("done"));

&set_label("four",16);
	&lea		($i1,&DWP(1,$block));
	&lea		($i3,&DWP(3,$block));
	&bsf		($i1,$i1);
	&bsf		($i3,$i3);
	&mov		($key,&DWP($key_off,"esp"));	# restore key
	&shl		($i1,4);
	&shl		($i3,4);
	&movdqu		($inout2,&QWP(0,$l_));
	&movdqu		($inout3,&QWP(0,$l_,$i1));
	&movdqa		($inout4,$inout2);
	&movdqu		($inout5,&QWP(0,$l_,$i3));

	&pxor		($inout2,$rndkey0);		# ^ last offset_i
	&movdqu		($inout0,&QWP(16*0,$inp));	# load input
	&pxor		($inout3,$inout2);
	&movdqu		($inout1,&QWP(16*1,$inp));
	&pxor		($inout4,$inout3);
	&movdqa		(&QWP(16*0,"esp"),$inout2);
	&pxor		($inout5,$inout4);
	&movdqa		(&QWP(16*1,"esp"),$inout3);
	&movdqu		($inout2,&QWP(16*2,$inp));
	&movdqu		($inout3,&QWP(16*3,$inp));
	&mov		($rounds,&DWP(240,$key));

	&movdqa		(&QWP($checksum,"esp"),$rndkey1);
	&pxor		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&pxor		($inout1,&QWP(16*1,"esp"));
	&pxor		($inout2,$inout4);
	&pxor		($inout3,$inout5);

	&mov		($out,&DWP($out_off,"esp"));
	&call		("_aesni_decrypt4");

	&movdqa		($rndkey1,&QWP($checksum,"esp"));# pass the checksum
	&xorps		($inout0,&QWP(16*0,"esp"));	# ^ offset_i
	&xorps		($inout1,&QWP(16*1,"esp"));
	&xorps		($inout2,$inout4);
	&movups		(&QWP(16*0,$out,$inp),$inout0);	# store output
	&pxor		($rndkey1,$inout0);		# checksum
	&xorps		($inout3,$inout5);
	&movups		(&QWP(16*1,$out,$inp),$inout1);
	&pxor		($rndkey1,$inout1);
	&movdqa		($rndkey0,$inout5);		# pass last offset_i
	&movups		(&QWP(16*2,$out,$inp),$inout2);
	&pxor		($rndkey1,$inout2);
	&movups		(&QWP(16*3,$out,$inp),$inout3);
	&pxor		($rndkey1,$inout3);

&set_label("done");
	&mov	($key,&DWP($esp_off,"esp"));
	&pxor	($inout0,$inout0);		# clear register bank
	&pxor	($inout1,$inout1);
	&movdqa	(&QWP(16*0,"esp"),$inout0);	# clear stack
	&pxor	($inout2,$inout2);
	&movdqa	(&QWP(16*1,"esp"),$inout0);
	&pxor	($inout3,$inout3);
	&movdqa	(&QWP(16*2,"esp"),$inout0);
	&pxor	($inout4,$inout4);
	&movdqa	(&QWP(16*3,"esp"),$inout0);
	&pxor	($inout5,$inout5);
	&movdqa	(&QWP(16*4,"esp"),$inout0);
	&movdqa	(&QWP(16*5,"esp"),$inout0);
	&movdqa	(&QWP(16*6,"esp"),$inout0);

	&lea	("esp",&DWP(0,$key));
	&mov	($rounds,&wparam(5));		# &offset_i
	&mov	($rounds_,&wparam(7));		# &checksum
	&movdqu	(&QWP(0,$rounds),$rndkey0);
	&pxor	($rndkey0,$rndkey0);
	&movdqu	(&QWP(0,$rounds_),$rndkey1);
	&pxor	($rndkey1,$rndkey1);
&function_end("aesni_ocb_decrypt");
}
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}

######################################################################
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# void $PREFIX_cbc_encrypt (const void *inp, void *out,
#                           size_t length, const AES_KEY *key,
#                           unsigned char *ivp,const int enc);
&function_begin("${PREFIX}_cbc_encrypt");
	&mov	($inp,&wparam(0));
2730
	&mov	($rounds_,"esp");
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2731
	&mov	($out,&wparam(1));
2732
	&sub	($rounds_,24);
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2733
	&mov	($len,&wparam(2));
2734
	&and	($rounds_,-16);
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2735 2736
	&mov	($key,&wparam(3));
	&mov	($key_,&wparam(4));
2737
	&test	($len,$len);
2738
	&jz	(&label("cbc_abort"));
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Andy Polyakov 已提交
2739 2740

	&cmp	(&wparam(5),0);
2741 2742
	&xchg	($rounds_,"esp");		# alloca
	&movups	($ivec,&QWP(0,$key_));		# load IV
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2743
	&mov	($rounds,&DWP(240,$key));
2744 2745 2746
	&mov	($key_,$key);			# backup $key
	&mov	(&DWP(16,"esp"),$rounds_);	# save original %esp
	&mov	($rounds_,$rounds);		# backup $rounds
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2747 2748
	&je	(&label("cbc_decrypt"));

2749
	&movaps	($inout0,$ivec);
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	&cmp	($len,16);
	&jb	(&label("cbc_enc_tail"));
	&sub	($len,16);
	&jmp	(&label("cbc_enc_loop"));

&set_label("cbc_enc_loop",16);
2756
	&movups	($ivec,&QWP(0,$inp));		# input actually
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Andy Polyakov 已提交
2757
	&lea	($inp,&DWP(16,$inp));
2758
	if ($inline)
2759
	{   &aesni_inline_generate1("enc",$inout0,$ivec);	}
2760
	else
2761
	{   &xorps($inout0,$ivec); &call("_aesni_encrypt1");	}
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	&mov	($rounds,$rounds_);	# restore $rounds
	&mov	($key,$key_);		# restore $key
2764 2765 2766
	&movups	(&QWP(0,$out),$inout0);	# store output
	&lea	($out,&DWP(16,$out));
	&sub	($len,16);
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	&jnc	(&label("cbc_enc_loop"));
	&add	($len,16);
	&jnz	(&label("cbc_enc_tail"));
	&movaps	($ivec,$inout0);
2771
	&pxor	($inout0,$inout0);
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	&jmp	(&label("cbc_ret"));

&set_label("cbc_enc_tail");
	&mov	("ecx",$len);		# zaps $rounds
	&data_word(0xA4F3F689);		# rep movsb
	&mov	("ecx",16);		# zero tail
	&sub	("ecx",$len);
	&xor	("eax","eax");		# zaps $len
	&data_word(0xAAF3F689);		# rep stosb
	&lea	($out,&DWP(-16,$out));	# rewind $out by 1 block
	&mov	($rounds,$rounds_);	# restore $rounds
	&mov	($inp,$out);		# $inp and $out are the same
	&mov	($key,$key_);		# restore $key
	&jmp	(&label("cbc_enc_loop"));
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######################################################################
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&set_label("cbc_decrypt",16);
2788
	&cmp	($len,0x50);
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	&jbe	(&label("cbc_dec_tail"));
2790 2791 2792
	&movaps	(&QWP(0,"esp"),$ivec);		# save IV
	&sub	($len,0x50);
	&jmp	(&label("cbc_dec_loop6_enter"));
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2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823
&set_label("cbc_dec_loop6",16);
	&movaps	(&QWP(0,"esp"),$rndkey0);	# save IV
	&movups	(&QWP(0,$out),$inout5);
	&lea	($out,&DWP(0x10,$out));
&set_label("cbc_dec_loop6_enter");
	&movdqu	($inout0,&QWP(0,$inp));
	&movdqu	($inout1,&QWP(0x10,$inp));
	&movdqu	($inout2,&QWP(0x20,$inp));
	&movdqu	($inout3,&QWP(0x30,$inp));
	&movdqu	($inout4,&QWP(0x40,$inp));
	&movdqu	($inout5,&QWP(0x50,$inp));

	&call	("_aesni_decrypt6");

	&movups	($rndkey1,&QWP(0,$inp));
	&movups	($rndkey0,&QWP(0x10,$inp));
	&xorps	($inout0,&QWP(0,"esp"));	# ^=IV
	&xorps	($inout1,$rndkey1);
	&movups	($rndkey1,&QWP(0x20,$inp));
	&xorps	($inout2,$rndkey0);
	&movups	($rndkey0,&QWP(0x30,$inp));
	&xorps	($inout3,$rndkey1);
	&movups	($rndkey1,&QWP(0x40,$inp));
	&xorps	($inout4,$rndkey0);
	&movups	($rndkey0,&QWP(0x50,$inp));	# IV
	&xorps	($inout5,$rndkey1);
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
	&lea	($inp,&DWP(0x60,$inp));
	&movups	(&QWP(0x20,$out),$inout2);
2824
	&mov	($rounds,$rounds_);		# restore $rounds
2825 2826 2827 2828 2829 2830 2831 2832 2833 2834
	&movups	(&QWP(0x30,$out),$inout3);
	&mov	($key,$key_);			# restore $key
	&movups	(&QWP(0x40,$out),$inout4);
	&lea	($out,&DWP(0x50,$out));
	&sub	($len,0x60);
	&ja	(&label("cbc_dec_loop6"));

	&movaps	($inout0,$inout5);
	&movaps	($ivec,$rndkey0);
	&add	($len,0x50);
2835
	&jle	(&label("cbc_dec_clear_tail_collected"));
2836 2837
	&movups	(&QWP(0,$out),$inout0);
	&lea	($out,&DWP(0x10,$out));
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2838
&set_label("cbc_dec_tail");
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	&movups	($inout0,&QWP(0,$inp));
	&movaps	($in0,$inout0);
2841
	&cmp	($len,0x10);
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2842
	&jbe	(&label("cbc_dec_one"));
2843

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	&movups	($inout1,&QWP(0x10,$inp));
	&movaps	($in1,$inout1);
2846
	&cmp	($len,0x20);
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Andy Polyakov 已提交
2847
	&jbe	(&label("cbc_dec_two"));
2848

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	&movups	($inout2,&QWP(0x20,$inp));
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2850 2851
	&cmp	($len,0x30);
	&jbe	(&label("cbc_dec_three"));
2852

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2853
	&movups	($inout3,&QWP(0x30,$inp));
2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873
	&cmp	($len,0x40);
	&jbe	(&label("cbc_dec_four"));

	&movups	($inout4,&QWP(0x40,$inp));
	&movaps	(&QWP(0,"esp"),$ivec);		# save IV
	&movups	($inout0,&QWP(0,$inp));
	&xorps	($inout5,$inout5);
	&call	("_aesni_decrypt6");
	&movups	($rndkey1,&QWP(0,$inp));
	&movups	($rndkey0,&QWP(0x10,$inp));
	&xorps	($inout0,&QWP(0,"esp"));	# ^= IV
	&xorps	($inout1,$rndkey1);
	&movups	($rndkey1,&QWP(0x20,$inp));
	&xorps	($inout2,$rndkey0);
	&movups	($rndkey0,&QWP(0x30,$inp));
	&xorps	($inout3,$rndkey1);
	&movups	($ivec,&QWP(0x40,$inp));	# IV
	&xorps	($inout4,$rndkey0);
	&movups	(&QWP(0,$out),$inout0);
	&movups	(&QWP(0x10,$out),$inout1);
2874
	&pxor	($inout1,$inout1);
2875
	&movups	(&QWP(0x20,$out),$inout2);
2876
	&pxor	($inout2,$inout2);
2877
	&movups	(&QWP(0x30,$out),$inout3);
2878
	&pxor	($inout3,$inout3);
2879 2880
	&lea	($out,&DWP(0x40,$out));
	&movaps	($inout0,$inout4);
2881
	&pxor	($inout4,$inout4);
2882
	&sub	($len,0x50);
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Andy Polyakov 已提交
2883 2884
	&jmp	(&label("cbc_dec_tail_collected"));

2885
&set_label("cbc_dec_one",16);
2886 2887 2888 2889
	if ($inline)
	{   &aesni_inline_generate1("dec");	}
	else
	{   &call	("_aesni_decrypt1");	}
2890 2891 2892
	&xorps	($inout0,$ivec);
	&movaps	($ivec,$in0);
	&sub	($len,0x10);
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Andy Polyakov 已提交
2893 2894
	&jmp	(&label("cbc_dec_tail_collected"));

2895
&set_label("cbc_dec_two",16);
2896
	&call	("_aesni_decrypt2");
2897 2898 2899 2900
	&xorps	($inout0,$ivec);
	&xorps	($inout1,$in0);
	&movups	(&QWP(0,$out),$inout0);
	&movaps	($inout0,$inout1);
2901
	&pxor	($inout1,$inout1);
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2902
	&lea	($out,&DWP(0x10,$out));
2903 2904
	&movaps	($ivec,$in1);
	&sub	($len,0x20);
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2905 2906
	&jmp	(&label("cbc_dec_tail_collected"));

2907
&set_label("cbc_dec_three",16);
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2908
	&call	("_aesni_decrypt3");
2909 2910 2911 2912 2913
	&xorps	($inout0,$ivec);
	&xorps	($inout1,$in0);
	&xorps	($inout2,$in1);
	&movups	(&QWP(0,$out),$inout0);
	&movaps	($inout0,$inout2);
2914
	&pxor	($inout2,$inout2);
2915
	&movups	(&QWP(0x10,$out),$inout1);
2916
	&pxor	($inout1,$inout1);
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2917
	&lea	($out,&DWP(0x20,$out));
2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931
	&movups	($ivec,&QWP(0x20,$inp));
	&sub	($len,0x30);
	&jmp	(&label("cbc_dec_tail_collected"));

&set_label("cbc_dec_four",16);
	&call	("_aesni_decrypt4");
	&movups	($rndkey1,&QWP(0x10,$inp));
	&movups	($rndkey0,&QWP(0x20,$inp));
	&xorps	($inout0,$ivec);
	&movups	($ivec,&QWP(0x30,$inp));
	&xorps	($inout1,$in0);
	&movups	(&QWP(0,$out),$inout0);
	&xorps	($inout2,$rndkey1);
	&movups	(&QWP(0x10,$out),$inout1);
2932
	&pxor	($inout1,$inout1);
2933 2934
	&xorps	($inout3,$rndkey0);
	&movups	(&QWP(0x20,$out),$inout2);
2935
	&pxor	($inout2,$inout2);
2936 2937
	&lea	($out,&DWP(0x30,$out));
	&movaps	($inout0,$inout3);
2938
	&pxor	($inout3,$inout3);
2939
	&sub	($len,0x40);
2940
	&jmp	(&label("cbc_dec_tail_collected"));
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Andy Polyakov 已提交
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2942 2943 2944 2945 2946
&set_label("cbc_dec_clear_tail_collected",16);
	&pxor	($inout1,$inout1);
	&pxor	($inout2,$inout2);
	&pxor	($inout3,$inout3);
	&pxor	($inout4,$inout4);
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2947 2948 2949
&set_label("cbc_dec_tail_collected");
	&and	($len,15);
	&jnz	(&label("cbc_dec_tail_partial"));
2950
	&movups	(&QWP(0,$out),$inout0);
2951
	&pxor	($rndkey0,$rndkey0);
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Andy Polyakov 已提交
2952 2953
	&jmp	(&label("cbc_ret"));

2954
&set_label("cbc_dec_tail_partial",16);
2955
	&movaps	(&QWP(0,"esp"),$inout0);
2956
	&pxor	($rndkey0,$rndkey0);
2957
	&mov	("ecx",16);
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Andy Polyakov 已提交
2958
	&mov	($inp,"esp");
2959
	&sub	("ecx",$len);
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2960
	&data_word(0xA4F3F689);		# rep movsb
2961
	&movdqa	(&QWP(0,"esp"),$inout0);
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2962 2963

&set_label("cbc_ret");
2964
	&mov	("esp",&DWP(16,"esp"));	# pull original %esp
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2965
	&mov	($key_,&wparam(4));
2966 2967
	&pxor	($inout0,$inout0);
	&pxor	($rndkey1,$rndkey1);
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2968
	&movups	(&QWP(0,$key_),$ivec);	# output IV
2969
	&pxor	($ivec,$ivec);
2970
&set_label("cbc_abort");
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2971
&function_end("${PREFIX}_cbc_encrypt");
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2972 2973

######################################################################
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# Mechanical port from aesni-x86_64.pl.
#
# _aesni_set_encrypt_key is private interface,
# input:
#	"eax"	const unsigned char *userKey
#	$rounds	int bits
#	$key	AES_KEY *key
# output:
#	"eax"	return code
#	$round	rounds

&function_begin_B("_aesni_set_encrypt_key");
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	&push	("ebp");
	&push	("ebx");
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	&test	("eax","eax");
	&jz	(&label("bad_pointer"));
	&test	($key,$key);
	&jz	(&label("bad_pointer"));

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	&call	(&label("pic"));
&set_label("pic");
	&blindpop("ebx");
	&lea	("ebx",&DWP(&label("key_const")."-".&label("pic"),"ebx"));

	&picmeup("ebp","OPENSSL_ia32cap_P","ebx",&label("key_const"));
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	&movups	("xmm0",&QWP(0,"eax"));	# pull first 128 bits of *userKey
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	&xorps	("xmm4","xmm4");	# low dword of xmm4 is assumed 0
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	&mov	("ebp",&DWP(4,"ebp"));
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	&lea	($key,&DWP(16,$key));
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	&and	("ebp",1<<28|1<<11);	# AVX and XOP bits
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	&cmp	($rounds,256);
	&je	(&label("14rounds"));
	&cmp	($rounds,192);
	&je	(&label("12rounds"));
	&cmp	($rounds,128);
	&jne	(&label("bad_keybits"));

&set_label("10rounds",16);
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	&cmp		("ebp",1<<28);
	&je		(&label("10rounds_alt"));

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	&mov		($rounds,9);
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	&$movekey	(&QWP(-16,$key),"xmm0");	# round 0
	&aeskeygenassist("xmm1","xmm0",0x01);		# round 1
	&call		(&label("key_128_cold"));
	&aeskeygenassist("xmm1","xmm0",0x2);		# round 2
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x04);		# round 3
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x08);		# round 4
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x10);		# round 5
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x20);		# round 6
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x40);		# round 7
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x80);		# round 8
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x1b);		# round 9
	&call		(&label("key_128"));
	&aeskeygenassist("xmm1","xmm0",0x36);		# round 10
	&call		(&label("key_128"));
	&$movekey	(&QWP(0,$key),"xmm0");
	&mov		(&DWP(80,$key),$rounds);
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	&jmp	(&label("good_key"));
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&set_label("key_128",16);
	&$movekey	(&QWP(0,$key),"xmm0");
	&lea		($key,&DWP(16,$key));
&set_label("key_128_cold");
	&shufps		("xmm4","xmm0",0b00010000);
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	&xorps		("xmm0","xmm4");
	&shufps		("xmm4","xmm0",0b10001100);
	&xorps		("xmm0","xmm4");
	&shufps		("xmm1","xmm1",0b11111111);	# critical path
	&xorps		("xmm0","xmm1");
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	&ret();

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&set_label("10rounds_alt",16);
	&movdqa		("xmm5",&QWP(0x00,"ebx"));
	&mov		($rounds,8);
	&movdqa		("xmm4",&QWP(0x20,"ebx"));
	&movdqa		("xmm2","xmm0");
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	&movdqu		(&QWP(-16,$key),"xmm0");
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&set_label("loop_key128");
	&pshufb		("xmm0","xmm5");
	&aesenclast	("xmm0","xmm4");
	&pslld		("xmm4",1);
	&lea		($key,&DWP(16,$key));

	&movdqa		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm2","xmm3");

	&pxor		("xmm0","xmm2");
	&movdqu		(&QWP(-16,$key),"xmm0");
	&movdqa		("xmm2","xmm0");

	&dec		($rounds);
	&jnz		(&label("loop_key128"));

	&movdqa		("xmm4",&QWP(0x30,"ebx"));

	&pshufb		("xmm0","xmm5");
	&aesenclast	("xmm0","xmm4");
	&pslld		("xmm4",1);

	&movdqa		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm2","xmm3");

	&pxor		("xmm0","xmm2");
	&movdqu		(&QWP(0,$key),"xmm0");

	&movdqa		("xmm2","xmm0");
	&pshufb		("xmm0","xmm5");
	&aesenclast	("xmm0","xmm4");

	&movdqa		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm3","xmm2");
	&pslldq		("xmm2",4);
	&pxor		("xmm2","xmm3");

	&pxor		("xmm0","xmm2");
	&movdqu		(&QWP(16,$key),"xmm0");

	&mov		($rounds,9);
	&mov		(&DWP(96,$key),$rounds);

	&jmp	(&label("good_key"));

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&set_label("12rounds",16);
	&movq		("xmm2",&QWP(16,"eax"));	# remaining 1/3 of *userKey
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	&cmp		("ebp",1<<28);
	&je		(&label("12rounds_alt"));

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	&mov		($rounds,11);
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	&$movekey	(&QWP(-16,$key),"xmm0");	# round 0
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	&aeskeygenassist("xmm1","xmm2",0x01);		# round 1,2
	&call		(&label("key_192a_cold"));
	&aeskeygenassist("xmm1","xmm2",0x02);		# round 2,3
	&call		(&label("key_192b"));
	&aeskeygenassist("xmm1","xmm2",0x04);		# round 4,5
	&call		(&label("key_192a"));
	&aeskeygenassist("xmm1","xmm2",0x08);		# round 5,6
	&call		(&label("key_192b"));
	&aeskeygenassist("xmm1","xmm2",0x10);		# round 7,8
	&call		(&label("key_192a"));
	&aeskeygenassist("xmm1","xmm2",0x20);		# round 8,9
	&call		(&label("key_192b"));
	&aeskeygenassist("xmm1","xmm2",0x40);		# round 10,11
	&call		(&label("key_192a"));
	&aeskeygenassist("xmm1","xmm2",0x80);		# round 11,12
	&call		(&label("key_192b"));
	&$movekey	(&QWP(0,$key),"xmm0");
	&mov		(&DWP(48,$key),$rounds);
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	&jmp	(&label("good_key"));
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&set_label("key_192a",16);
	&$movekey	(&QWP(0,$key),"xmm0");
	&lea		($key,&DWP(16,$key));
&set_label("key_192a_cold",16);
	&movaps		("xmm5","xmm2");
&set_label("key_192b_warm");
	&shufps		("xmm4","xmm0",0b00010000);
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	&movdqa		("xmm3","xmm2");
	&xorps		("xmm0","xmm4");
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	&shufps		("xmm4","xmm0",0b10001100);
	&pslldq		("xmm3",4);
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	&xorps		("xmm0","xmm4");
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	&pshufd		("xmm1","xmm1",0b01010101);	# critical path
	&pxor		("xmm2","xmm3");
	&pxor		("xmm0","xmm1");
	&pshufd		("xmm3","xmm0",0b11111111);
	&pxor		("xmm2","xmm3");
	&ret();

&set_label("key_192b",16);
	&movaps		("xmm3","xmm0");
	&shufps		("xmm5","xmm0",0b01000100);
	&$movekey	(&QWP(0,$key),"xmm5");
	&shufps		("xmm3","xmm2",0b01001110);
	&$movekey	(&QWP(16,$key),"xmm3");
	&lea		($key,&DWP(32,$key));
	&jmp		(&label("key_192b_warm"));

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&set_label("12rounds_alt",16);
	&movdqa		("xmm5",&QWP(0x10,"ebx"));
	&movdqa		("xmm4",&QWP(0x20,"ebx"));
	&mov		($rounds,8);
	&movdqu		(&QWP(-16,$key),"xmm0");

&set_label("loop_key192");
	&movq		(&QWP(0,$key),"xmm2");
	&movdqa		("xmm1","xmm2");
	&pshufb		("xmm2","xmm5");
	&aesenclast	("xmm2","xmm4");
	&pslld		("xmm4",1);
	&lea		($key,&DWP(24,$key));

	&movdqa		("xmm3","xmm0");
	&pslldq		("xmm0",4);
	&pxor		("xmm3","xmm0");
	&pslldq		("xmm0",4);
	&pxor		("xmm3","xmm0");
	&pslldq		("xmm0",4);
	&pxor		("xmm0","xmm3");

	&pshufd		("xmm3","xmm0",0xff);
	&pxor		("xmm3","xmm1");
	&pslldq		("xmm1",4);
	&pxor		("xmm3","xmm1");

	&pxor		("xmm0","xmm2");
	&pxor		("xmm2","xmm3");
	&movdqu		(&QWP(-16,$key),"xmm0");

	&dec		($rounds);
	&jnz		(&label("loop_key192"));

	&mov	($rounds,11);
	&mov	(&DWP(32,$key),$rounds);

	&jmp	(&label("good_key"));

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&set_label("14rounds",16);
	&movups		("xmm2",&QWP(16,"eax"));	# remaining half of *userKey
	&lea		($key,&DWP(16,$key));
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	&cmp		("ebp",1<<28);
	&je		(&label("14rounds_alt"));

	&mov		($rounds,13);
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	&$movekey	(&QWP(-32,$key),"xmm0");	# round 0
	&$movekey	(&QWP(-16,$key),"xmm2");	# round 1
	&aeskeygenassist("xmm1","xmm2",0x01);		# round 2
	&call		(&label("key_256a_cold"));
	&aeskeygenassist("xmm1","xmm0",0x01);		# round 3
	&call		(&label("key_256b"));
	&aeskeygenassist("xmm1","xmm2",0x02);		# round 4
	&call		(&label("key_256a"));
	&aeskeygenassist("xmm1","xmm0",0x02);		# round 5
	&call		(&label("key_256b"));
	&aeskeygenassist("xmm1","xmm2",0x04);		# round 6
	&call		(&label("key_256a"));
	&aeskeygenassist("xmm1","xmm0",0x04);		# round 7
	&call		(&label("key_256b"));
	&aeskeygenassist("xmm1","xmm2",0x08);		# round 8
	&call		(&label("key_256a"));
	&aeskeygenassist("xmm1","xmm0",0x08);		# round 9
	&call		(&label("key_256b"));
	&aeskeygenassist("xmm1","xmm2",0x10);		# round 10
	&call		(&label("key_256a"));
	&aeskeygenassist("xmm1","xmm0",0x10);		# round 11
	&call		(&label("key_256b"));
	&aeskeygenassist("xmm1","xmm2",0x20);		# round 12
	&call		(&label("key_256a"));
	&aeskeygenassist("xmm1","xmm0",0x20);		# round 13
	&call		(&label("key_256b"));
	&aeskeygenassist("xmm1","xmm2",0x40);		# round 14
	&call		(&label("key_256a"));
	&$movekey	(&QWP(0,$key),"xmm0");
	&mov		(&DWP(16,$key),$rounds);
	&xor		("eax","eax");
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	&jmp	(&label("good_key"));
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&set_label("key_256a",16);
	&$movekey	(&QWP(0,$key),"xmm2");
	&lea		($key,&DWP(16,$key));
&set_label("key_256a_cold");
	&shufps		("xmm4","xmm0",0b00010000);
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	&xorps		("xmm0","xmm4");
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	&shufps		("xmm4","xmm0",0b10001100);
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	&xorps		("xmm0","xmm4");
	&shufps		("xmm1","xmm1",0b11111111);	# critical path
	&xorps		("xmm0","xmm1");
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	&ret();

&set_label("key_256b",16);
	&$movekey	(&QWP(0,$key),"xmm0");
	&lea		($key,&DWP(16,$key));

	&shufps		("xmm4","xmm2",0b00010000);
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	&xorps		("xmm2","xmm4");
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	&shufps		("xmm4","xmm2",0b10001100);
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	&xorps		("xmm2","xmm4");
	&shufps		("xmm1","xmm1",0b10101010);	# critical path
	&xorps		("xmm2","xmm1");
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	&ret();

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&set_label("14rounds_alt",16);
	&movdqa		("xmm5",&QWP(0x00,"ebx"));
	&movdqa		("xmm4",&QWP(0x20,"ebx"));
	&mov		($rounds,7);
	&movdqu		(&QWP(-32,$key),"xmm0");
	&movdqa		("xmm1","xmm2");
	&movdqu		(&QWP(-16,$key),"xmm2");

&set_label("loop_key256");
	&pshufb		("xmm2","xmm5");
	&aesenclast	("xmm2","xmm4");

	&movdqa		("xmm3","xmm0");
	&pslldq		("xmm0",4);
	&pxor		("xmm3","xmm0");
	&pslldq		("xmm0",4);
	&pxor		("xmm3","xmm0");
	&pslldq		("xmm0",4);
	&pxor		("xmm0","xmm3");
	&pslld		("xmm4",1);

	&pxor		("xmm0","xmm2");
	&movdqu		(&QWP(0,$key),"xmm0");

	&dec		($rounds);
	&jz		(&label("done_key256"));

	&pshufd		("xmm2","xmm0",0xff);
	&pxor		("xmm3","xmm3");
	&aesenclast	("xmm2","xmm3");

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	&movdqa		("xmm3","xmm1");
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	&pslldq		("xmm1",4);
	&pxor		("xmm3","xmm1");
	&pslldq		("xmm1",4);
	&pxor		("xmm3","xmm1");
	&pslldq		("xmm1",4);
	&pxor		("xmm1","xmm3");

	&pxor		("xmm2","xmm1");
	&movdqu		(&QWP(16,$key),"xmm2");
	&lea		($key,&DWP(32,$key));
	&movdqa		("xmm1","xmm2");
	&jmp		(&label("loop_key256"));

&set_label("done_key256");
	&mov		($rounds,13);
	&mov		(&DWP(16,$key),$rounds);

&set_label("good_key");
	&pxor	("xmm0","xmm0");
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&pxor	("xmm3","xmm3");
	&pxor	("xmm4","xmm4");
	&pxor	("xmm5","xmm5");
	&xor	("eax","eax");
	&pop	("ebx");
	&pop	("ebp");
	&ret	();

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&set_label("bad_pointer",4);
	&mov	("eax",-1);
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	&pop	("ebx");
	&pop	("ebp");
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	&ret	();
&set_label("bad_keybits",4);
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	&pxor	("xmm0","xmm0");
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	&mov	("eax",-2);
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	&pop	("ebx");
	&pop	("ebp");
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	&ret	();
&function_end_B("_aesni_set_encrypt_key");

# int $PREFIX_set_encrypt_key (const unsigned char *userKey, int bits,
#                              AES_KEY *key)
&function_begin_B("${PREFIX}_set_encrypt_key");
	&mov	("eax",&wparam(0));
	&mov	($rounds,&wparam(1));
	&mov	($key,&wparam(2));
	&call	("_aesni_set_encrypt_key");
	&ret	();
&function_end_B("${PREFIX}_set_encrypt_key");

# int $PREFIX_set_decrypt_key (const unsigned char *userKey, int bits,
#                              AES_KEY *key)
&function_begin_B("${PREFIX}_set_decrypt_key");
	&mov	("eax",&wparam(0));
	&mov	($rounds,&wparam(1));
	&mov	($key,&wparam(2));
	&call	("_aesni_set_encrypt_key");
	&mov	($key,&wparam(2));
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	&shl	($rounds,4);	# rounds-1 after _aesni_set_encrypt_key
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	&test	("eax","eax");
	&jnz	(&label("dec_key_ret"));
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	&lea	("eax",&DWP(16,$key,$rounds));	# end of key schedule
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	&$movekey	("xmm0",&QWP(0,$key));	# just swap
	&$movekey	("xmm1",&QWP(0,"eax"));
	&$movekey	(&QWP(0,"eax"),"xmm0");
	&$movekey	(&QWP(0,$key),"xmm1");
	&lea		($key,&DWP(16,$key));
	&lea		("eax",&DWP(-16,"eax"));

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&set_label("dec_key_inverse");
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	&$movekey	("xmm0",&QWP(0,$key));	# swap and inverse
	&$movekey	("xmm1",&QWP(0,"eax"));
	&aesimc		("xmm0","xmm0");
	&aesimc		("xmm1","xmm1");
	&lea		($key,&DWP(16,$key));
	&lea		("eax",&DWP(-16,"eax"));
	&$movekey	(&QWP(16,"eax"),"xmm0");
	&$movekey	(&QWP(-16,$key),"xmm1");
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	&cmp		("eax",$key);
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	&ja		(&label("dec_key_inverse"));

	&$movekey	("xmm0",&QWP(0,$key));	# inverse middle
	&aesimc		("xmm0","xmm0");
	&$movekey	(&QWP(0,$key),"xmm0");

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	&pxor		("xmm0","xmm0");
	&pxor		("xmm1","xmm1");
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	&xor		("eax","eax");		# return success
&set_label("dec_key_ret");
	&ret	();
&function_end_B("${PREFIX}_set_decrypt_key");
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&set_label("key_const",64);
&data_word(0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d);
&data_word(0x04070605,0x04070605,0x04070605,0x04070605);
&data_word(1,1,1,1);
&data_word(0x1b,0x1b,0x1b,0x1b);
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&asciz("AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>");

&asm_finish();
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close STDOUT;