Skip to content

T
Third Party Openssl

OpenHarmony / Third Party Openssl
1 年多 前同步成功

通知 9
Star 18
Fork 1
T
Third Party Openssl
提交 20c04a13 编写于 作者: A Andy Polyakov
浏览文件
操作

Reimplement rc4-586.pl, relicense rc4-x86_64.pl.

上级 a291745e
隐藏空白更改
内联 并排
Showing with 154 addition and 202 deletion
crypto/rc4/asm/rc4-586.pl
浏览文件 @ 20c04a13
#!/usr/local/bin/perl
#!/usr/bin/env perl
# ====================================================================
# [Re]written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# 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/.
# ====================================================================
# At some point it became apparent that the original SSLeay RC4
# assembler implementation performs suboptimaly on latest IA-32
# assembler implementation performs suboptimally on latest IA-32
# microarchitectures. After re-tuning performance has changed as
# following:
#
# Pentium +0%
# Pentium III +17%
# AMD +52%(*)
# P4 +180%(**)
# Pentium -10%
# Pentium III +12%
# AMD +50%(*)
# P4 +250%(**)
#
# (*) This number is actually a trade-off:-) It's possible to
# achieve +72%, but at the cost of -48% off PIII performance.
......@@ -17,209 +24,136 @@
# For reference! This code delivers ~80% of rc4-amd64.pl
# performance on the same Opteron machine.
# (**) This number requires compressed key schedule set up by
# RC4_set_key and therefore doesn't apply to 0.9.7 [option for
# compressed key schedule is implemented in 0.9.8 and later,
# see commentary section in rc4_skey.c for further details].
# RC4_set_key [see commentary below for further details].
#
# <appro@fy.chalmers.se>
push(@INC,"perlasm","../../perlasm");
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],"rc4-586.pl");
$x="eax";
$y="ebx";
$xx="eax";
$yy="ebx";
$tx="ecx";
$ty="edx";
$in="esi";
$out="edi";
$d="ebp";
sub RC4_loop
{
local($n,$p,$char)=@_;
&comment("Round $n");
if ($char)
{
if ($p >= 0)
{
&mov($ty, &swtmp(2));
&cmp($ty, $in);
&jbe(&label("finished"));
&inc($in);
}
else
{
&add($ty, 8);
&inc($in);
&cmp($ty, $in);
&jb(&label("finished"));
&mov(&swtmp(2), $ty);
}
}
# Moved out
# &mov( $tx, &DWP(0,$d,$x,4)) if $p < 0;
&add( &LB($y), &LB($tx));
&mov( $ty, &DWP(0,$d,$y,4));
# XXX
&mov( &DWP(0,$d,$x,4),$ty);
&add( $ty, $tx);
&mov( &DWP(0,$d,$y,4),$tx);
&and( $ty, 0xff);
&inc( &LB($x)); # NEXT ROUND
&mov( $tx, &DWP(0,$d,$x,4)) if $p < 1; # NEXT ROUND
&mov( $ty, &DWP(0,$d,$ty,4));
if (!$char)
{
#moved up into last round
if ($p >= 1)
{
&add( $out, 8)
}
&movb( &BP($n,"esp","",0), &LB($ty));
}
else
{
# Note in+=8 has occured
&movb( &HB($ty), &BP(-1,$in,"",0));
# XXX
&xorb(&LB($ty), &HB($ty));
# XXX
&movb(&BP($n,$out,"",0),&LB($ty));
}
$inp="esi";
$out="ebp";
$dat="edi";
sub RC4_loop {
my $i=shift;
my $func = ($i==0)?*mov:*or;
&add (&LB($yy),&LB($tx));
&mov ($ty,&DWP(0,$dat,$yy,4));
&mov (&DWP(0,$dat,$yy,4),$tx);
&mov (&DWP(0,$dat,$xx,4),$ty);
&add ($ty,$tx);
&inc (&LB($xx));
&and ($ty,0xff);
&ror ($out,8) if ($i!=0);
if ($i<3) {
&mov ($tx,&DWP(0,$dat,$xx,4));
} else {
&mov ($tx,&wparam(3)); # reload [re-biased] out
}
&$func ($out,&DWP(0,$dat,$ty,4));
}
&function_begin_B("RC4");
{
local($name)=@_;
&mov($ty,&wparam(1)); # len
&cmp($ty,0);
&jne(&label("proceed"));
&ret();
&set_label("proceed");
&comment("");
&push("ebp");
&push("ebx");
&push("esi");
&xor( $x, $x); # avoid partial register stalls
&push("edi");
&xor( $y, $y); # avoid partial register stalls
&mov( $d, &wparam(0)); # key
&mov( $in, &wparam(2));
&movb( &LB($x), &BP(0,$d,"",1));
&movb( &LB($y), &BP(4,$d,"",1));
&mov( $out, &wparam(3));
&inc( &LB($x));
&stack_push(3); # 3 temp variables
&add( $d, 8);
# detect compressed schedule, see commentary section in rc4_skey.c...
# in 0.9.7 context ~50 bytes below RC4_CHAR label remain redundant,
# as compressed key schedule is set up in 0.9.8 and later.
&cmp(&DWP(256,$d),-1);
&je(&label("RC4_CHAR"));
&lea( $ty, &DWP(-8,$ty,$in));
# check for 0 length input
&mov( &swtmp(2), $ty); # this is now address to exit at
&mov( $tx, &DWP(0,$d,$x,4));
&cmp( $ty, $in);
&jb( &label("end")); # less than 8 bytes
&set_label("start");
# filling DELAY SLOT
&add( $in, 8);
&RC4_loop(0,-1,0);
&RC4_loop(1,0,0);
&RC4_loop(2,0,0);
&RC4_loop(3,0,0);
&RC4_loop(4,0,0);
&RC4_loop(5,0,0);
&RC4_loop(6,0,0);
&RC4_loop(7,1,0);
&comment("apply the cipher text");
# xor the cipher data with input
#&add( $out, 8); #moved up into last round
&mov( $tx, &swtmp(0));
&mov( $ty, &DWP(-8,$in,"",0));
&xor( $tx, $ty);
&mov( $ty, &DWP(-4,$in,"",0));
&mov( &DWP(-8,$out,"",0), $tx);
&mov( $tx, &swtmp(1));
&xor( $tx, $ty);
&mov( $ty, &swtmp(2)); # load end ptr;
&mov( &DWP(-4,$out,"",0), $tx);
&mov( $tx, &DWP(0,$d,$x,4));
&cmp($in, $ty);
&jbe(&label("start"));
&set_label("end");
# There is quite a bit of extra crap in RC4_loop() for this
# first round
&RC4_loop(0,-1,1);
&RC4_loop(1,0,1);
&RC4_loop(2,0,1);
&RC4_loop(3,0,1);
&RC4_loop(4,0,1);
&RC4_loop(5,0,1);
&RC4_loop(6,1,1);
&jmp(&label("finished"));
&align(16);
# this is essentially Intel P4 specific codepath, see rc4_skey.c,
# and is engaged in 0.9.8 and later context...
&set_label("RC4_CHAR");
&lea ($ty,&DWP(0,$in,$ty));
&mov (&swtmp(2),$ty);
&movz ($tx,&BP(0,$d,$x));
# void RC4(RC4_KEY *key,size_t len,const unsigned char *inp,unsigned char *out);
&function_begin("RC4");
&mov ($dat,&wparam(0)); # load key schedule pointer
&mov ($ty, &wparam(1)); # load len
&mov ($inp,&wparam(2)); # load inp
&mov ($out,&wparam(3)); # load out
&xor ($xx,$xx); # avoid partial register stalls
&xor ($yy,$yy);
&cmp ($ty,0); # safety net
&je (&label("abort"));
&mov (&LB($xx),&BP(0,$dat)); # load key->x
&mov (&LB($yy),&BP(4,$dat)); # load key->y
&add ($dat,8);
&lea ($tx,&DWP(0,$inp,$ty));
&sub ($out,$inp); # re-bias out
&mov (&wparam(1),$tx); # save input+len
&inc (&LB($xx));
# detect compressed key schedule...
&cmp (&DWP(256,$dat),-1);
&je (&label("RC4_CHAR"));
&mov ($tx,&DWP(0,$dat,$xx,4));
&and ($ty,-4); # how many 4-byte chunks?
&jz (&label("loop1"));
&lea ($ty,&DWP(-4,$inp,$ty));
&mov (&wparam(2),$ty); # save input+(len/4)*4-4
&mov (&wparam(3),$out); # $out as accumulator in this loop
&set_label("loop4",16);
for ($i=0;$i<4;$i++) { RC4_loop($i); }
&ror ($out,8);
&xor ($out,&DWP(0,$inp));
&cmp ($inp,&wparam(2)); # compare to input+(len/4)*4-4
&mov (&DWP(0,$tx,$inp),$out);# $tx holds re-biased out here
&lea ($inp,&DWP(4,$inp));
&mov ($tx,&DWP(0,$dat,$xx,4));
&jb (&label("loop4"));
&cmp ($inp,&wparam(1)); # compare to input+len
&je (&label("done"));
&mov ($out,&wparam(3)); # restore $out
&set_label("loop1",16);
&add (&LB($yy),&LB($tx));
&mov ($ty,&DWP(0,$dat,$yy,4));
&mov (&DWP(0,$dat,$yy,4),$tx);
&mov (&DWP(0,$dat,$xx,4),$ty);
&add ($ty,$tx);
&inc (&LB($xx));
&and ($ty,0xff);
&mov ($ty,&DWP(0,$dat,$ty,4));
&xor (&LB($ty),&BP(0,$inp));
&lea ($inp,&DWP(1,$inp));
&mov ($tx,&DWP(0,$dat,$xx,4));
&cmp ($inp,&wparam(1)); # compare to input+len
&mov (&BP(-1,$out,$inp),&LB($ty));
&jb (&label("loop1"));
&jmp (&label("done"));
# this is essentially Intel P4 specific codepath...
&set_label("RC4_CHAR",16);
&movz ($tx,&BP(0,$dat,$xx));
# strangely enough unrolled loop performs over 20% slower...
&set_label("RC4_CHAR_loop");
&add (&LB($y),&LB($tx));
&movz ($ty,&BP(0,$d,$y));
&movb (&BP(0,$d,$y),&LB($tx));
&movb (&BP(0,$d,$x),&LB($ty));
&set_label("cloop1");
&add (&LB($yy),&LB($tx));
&movz ($ty,&BP(0,$dat,$yy));
&mov (&BP(0,$dat,$yy),&LB($tx));
&mov (&BP(0,$dat,$xx),&LB($ty));
&add (&LB($ty),&LB($tx));
&movz ($ty,&BP(0,$d,$ty));
&add (&LB($x),1);
&xorb (&LB($ty),&BP(0,$in));
&lea ($in,&BP(1,$in));
&movz ($tx,&BP(0,$d,$x));
&cmp ($in,&swtmp(2));
&movb (&BP(0,$out),&LB($ty));
&lea ($out,&BP(1,$out));
&jb (&label("RC4_CHAR_loop"));
&set_label("finished");
&dec( $x);
&stack_pop(3);
&movb( &BP(-4,$d,"",0),&LB($y));
&movb( &BP(-8,$d,"",0),&LB($x));
}
&movz ($ty,&BP(0,$dat,$ty));
&add (&LB($xx),1);
&xor (&LB($ty),&BP(0,$inp));
&lea ($inp,&BP(1,$inp));
&movz ($tx,&BP(0,$dat,$xx));
&cmp ($inp,&wparam(1));
&mov (&BP(-1,$out,$inp),&LB($ty));
&jb (&label("cloop1"));
&set_label("done");
&dec (&LB($xx));
&mov (&BP(-4,$dat),&LB($yy)); # save key->y
&mov (&BP(-8,$dat),&LB($xx)); # save key->x
&set_label("abort");
&function_end("RC4");
########################################################################
......@@ -271,6 +205,17 @@ $idx="edx";
&jnc (&label("w2ndloop"));
&jmp (&label("exit"));
# Unlike all other x86 [and x86_64] implementations, Intel P4 core
# [including EM64T] was found to perform poorly with above "32-bit" key
# schedule, a.k.a. RC4_INT. Performance improvement for IA-32 hand-coded
# assembler turned out to be 3.5x if re-coded for compressed 8-bit one,
# a.k.a. RC4_CHAR! It's however inappropriate to just switch to 8-bit
# schedule for x86[_64], because non-P4 implementations suffer from
# significant performance losses then, e.g. PIII exhibits >2x
# deterioration, and so does Opteron. In order to assure optimal
# all-round performance, we detect P4 at run-time and set up compressed
# key schedule, which is recognized by RC4 procedure.
&set_label("c1stloop",16);
&mov (&BP(0,$out,"eax"),&LB("eax")); # key->data[i]=i;
&add (&LB("eax"),1); # i++;
......@@ -315,9 +260,9 @@ $idx="edx";
&set_label("skip");
&ret ();
&set_label("opts",64);
&asciz ("rc4(8x,int)");
&asciz ("rc4(4x,int)");
&asciz ("rc4(1x,char)");
&asciz ("RC4 for x86, OpenSSL project"); # RC4_version
&asciz ("RC4 for x86, CRYPTOGAMS by <appro\@openssl.org>");
&align (64);
&function_end_B("RC4_options");
......
crypto/rc4/asm/rc4-x86_64.pl
浏览文件 @ 20c04a13
......@@ -2,8 +2,9 @@
#
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. Rights for redistribution and usage in source and binary
# forms are granted according to the OpenSSL license.
# 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/.
# ====================================================================
#
# 2.22x RC4 tune-up:-) It should be noted though that my hand [as in
......@@ -58,7 +59,13 @@
# this CPU.
$output=shift;
open STDOUT,"| $^X ../perlasm/x86_64-xlate.pl $output";
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
open STDOUT,"| $^X $xlate $output";
$dat="%rdi"; # arg1
$len="%rsi"; # arg2
......@@ -345,7 +352,7 @@ RC4_options:
.asciz "rc4(8x,int)"
.asciz "rc4(8x,char)"
.asciz "rc4(1x,char)"
.asciz "RC4 for x86_64, OpenSSL project"
.asciz "RC4 for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
.align 64
.size RC4_options,.-RC4_options
___
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或