- 16 3月, 2018 1 次提交
-
-
由 Gilad Ben-Yossef 提交于
Introduce the SM4 cipher algorithms (OSCCA GB/T 32907-2016). SM4 (GBT.32907-2016) is a cryptographic standard issued by the Organization of State Commercial Administration of China (OSCCA) as an authorized cryptographic algorithms for the use within China. SMS4 was originally created for use in protecting wireless networks, and is mandated in the Chinese National Standard for Wireless LAN WAPI (Wired Authentication and Privacy Infrastructure) (GB.15629.11-2003). Signed-off-by: NGilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 09 3月, 2018 1 次提交
-
-
由 James Bottomley 提交于
TPM security routines require encryption and decryption with AES in CFB mode, so add it to the Linux Crypto schemes. CFB is basically a one time pad where the pad is generated initially from the encrypted IV and then subsequently from the encrypted previous block of ciphertext. The pad is XOR'd into the plain text to get the final ciphertext. https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#CFBSigned-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 03 3月, 2018 23 次提交
-
-
由 Eric Biggers 提交于
All users of ablk_helper have been converted over to crypto_simd, so remove ablk_helper. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the AESNI AVX and AESNI AVX2 implementations of Camellia from the (deprecated) ablkcipher and blkcipher interfaces over to the skcipher interface. Note that this includes replacing the use of ablk_helper with crypto_simd. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the x86 asm implementation of Camellia from the (deprecated) blkcipher interface over to the skcipher interface. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The XTS template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic XTS code themselves via xts_crypt(). Remove the xts-camellia-asm algorithm which did this. Users who request xts(camellia) and previously would have gotten xts-camellia-asm will now get xts(ecb-camellia-asm) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-camellia-asm algorithm which did this. Users who request lrw(camellia) and previously would have gotten lrw-camellia-asm will now get lrw(ecb-camellia-asm) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-camellia-aesni-avx2 algorithm which did this. Users who request lrw(camellia) and previously would have gotten lrw-camellia-aesni-avx2 will now get lrw(ecb-camellia-aesni-avx2) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-camellia-aesni algorithm which did this. Users who request lrw(camellia) and previously would have gotten lrw-camellia-aesni will now get lrw(ecb-camellia-aesni) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the x86 asm implementation of Triple DES from the (deprecated) blkcipher interface over to the skcipher interface. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the x86 asm implementation of Blowfish from the (deprecated) blkcipher interface over to the skcipher interface. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the AVX implementation of CAST6 from the (deprecated) ablkcipher and blkcipher interfaces over to the skcipher interface. Note that this includes replacing the use of ablk_helper with crypto_simd. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-cast6-avx algorithm which did this. Users who request lrw(cast6) and previously would have gotten lrw-cast6-avx will now get lrw(ecb-cast6-avx) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the AVX implementation of CAST5 from the (deprecated) ablkcipher and blkcipher interfaces over to the skcipher interface. Note that this includes replacing the use of ablk_helper with crypto_simd. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the AVX implementation of Twofish from the (deprecated) ablkcipher and blkcipher interfaces over to the skcipher interface. Note that this includes replacing the use of ablk_helper with crypto_simd. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-twofish-avx algorithm which did this. Users who request lrw(twofish) and previously would have gotten lrw-twofish-avx will now get lrw(ecb-twofish-avx) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the 3-way implementation of Twofish from the (deprecated) blkcipher interface over to the skcipher interface. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The XTS template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic XTS code themselves via xts_crypt(). Remove the xts-twofish-3way algorithm which did this. Users who request xts(twofish) and previously would have gotten xts-twofish-3way will now get xts(ecb-twofish-3way) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-twofish-3way algorithm which did this. Users who request lrw(twofish) and previously would have gotten lrw-twofish-3way will now get lrw(ecb-twofish-3way) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the AVX and AVX2 implementations of Serpent from the (deprecated) ablkcipher and blkcipher interfaces over to the skcipher interface. Note that this includes replacing the use of ablk_helper with crypto_simd. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-serpent-avx algorithm which did this. Users who request lrw(serpent) and previously would have gotten lrw-serpent-avx will now get lrw(ecb-serpent-avx) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-serpent-avx2 algorithm which did this. Users who request lrw(serpent) and previously would have gotten lrw-serpent-avx2 will now get lrw(ecb-serpent-avx2) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
Convert the SSE2 implementation of Serpent from the (deprecated) ablkcipher and blkcipher interfaces over to the skcipher interface. Note that this includes replacing the use of ablk_helper with crypto_simd. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The XTS template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic XTS code themselves via xts_crypt(). Remove the xts-serpent-sse2 algorithm which did this. Users who request xts(serpent) and previously would have gotten xts-serpent-sse2 will now get xts(ecb-serpent-sse2) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Eric Biggers 提交于
The LRW template now wraps an ECB mode algorithm rather than the block cipher directly. Therefore it is now redundant for crypto modules to wrap their ECB code with generic LRW code themselves via lrw_crypt(). Remove the lrw-serpent-sse2 algorithm which did this. Users who request lrw(serpent) and previously would have gotten lrw-serpent-sse2 will now get lrw(ecb-serpent-sse2) instead, which is just as fast. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 22 2月, 2018 1 次提交
-
-
由 Eric Biggers 提交于
Add a generic implementation of Speck, including the Speck128 and Speck64 variants. Speck is a lightweight block cipher that can be much faster than AES on processors that don't have AES instructions. We are planning to offer Speck-XTS (probably Speck128/256-XTS) as an option for dm-crypt and fscrypt on Android, for low-end mobile devices with older CPUs such as ARMv7 which don't have the Cryptography Extensions. Currently, such devices are unencrypted because AES is not fast enough, even when the NEON bit-sliced implementation of AES is used. Other AES alternatives such as Twofish, Threefish, Camellia, CAST6, and Serpent aren't fast enough either; it seems that only a modern ARX cipher can provide sufficient performance on these devices. This is a replacement for our original proposal (https://patchwork.kernel.org/patch/10101451/) which was to offer ChaCha20 for these devices. However, the use of a stream cipher for disk/file encryption with no space to store nonces would have been much more insecure than we thought initially, given that it would be used on top of flash storage as well as potentially on top of F2FS, neither of which is guaranteed to overwrite data in-place. Speck has been somewhat controversial due to its origin. Nevertheless, it has a straightforward design (it's an ARX cipher), and it appears to be the leading software-optimized lightweight block cipher currently, with the most cryptanalysis. It's also easy to implement without side channels, unlike AES. Moreover, we only intend Speck to be used when the status quo is no encryption, due to AES not being fast enough. We've also considered a novel length-preserving encryption mode based on ChaCha20 and Poly1305. While theoretically attractive, such a mode would be a brand new crypto construction and would be more complicated and difficult to implement efficiently in comparison to Speck-XTS. There is confusion about the byte and word orders of Speck, since the original paper doesn't specify them. But we have implemented it using the orders the authors recommended in a correspondence with them. The test vectors are taken from the original paper but were mapped to byte arrays using the recommended byte and word orders. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 20 2月, 2018 1 次提交
-
-
由 Marcin Nowakowski 提交于
This module registers crc32 and crc32c algorithms that use the optional CRC32[bhwd] and CRC32C[bhwd] instructions in MIPSr6 cores. Signed-off-by: NMarcin Nowakowski <marcin.nowakowski@mips.com> Signed-off-by: NJames Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-mips@linux-mips.org Cc: linux-crypto@vger.kernel.org Acked-by: NHerbert Xu <herbert@gondor.apana.org.au> Patchwork: https://patchwork.linux-mips.org/patch/18601/ [jhogan@kernel.org: Add CRYPTO_ALG_OPTIONAL_KEY flag on Eric Biggers' suggestion, due to commit a208fa8f ("crypto: hash - annotate algorithms taking optional key") in v4.16-rc1]
-
- 12 1月, 2018 1 次提交
-
-
由 Eric Biggers 提交于
Convert salsa20-asm from the deprecated "blkcipher" API to the "skcipher" API, in the process fixing it up to use the generic helpers. This allows removing the salsa20_keysetup() and salsa20_ivsetup() assembly functions, which aren't performance critical; the C versions do just fine. This also fixes the same bug that salsa20-generic had, where the state array was being maintained directly in the transform context rather than on the stack or in the request context. Thus, if multiple threads used the same Salsa20 transform concurrently they produced the wrong results. Signed-off-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 07 1月, 2018 1 次提交
-
-
由 Bart Van Assche 提交于
Use the sgl_alloc() and sgl_free() functions instead of open coding these functions. Signed-off-by: NBart Van Assche <bart.vanassche@wdc.com> Acked-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NJens Axboe <axboe@kernel.dk>
-
- 11 12月, 2017 1 次提交
-
-
由 Hauke Mehrtens 提交于
This fixes a typo in the CRYPTO_KPP dependency of CRYPTO_ECDH. Fixes: 3c4b2390 ("crypto: ecdh - Add ECDH software support") Cc: <stable@vger.kernel.org> # v4.8+ Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 02 11月, 2017 1 次提交
-
-
由 Greg Kroah-Hartman 提交于
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: NKate Stewart <kstewart@linuxfoundation.org> Reviewed-by: NPhilippe Ombredanne <pombredanne@nexb.com> Reviewed-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
-
- 22 9月, 2017 1 次提交
-
-
由 Gilad Ben-Yossef 提交于
Add OSCCA SM3 secure hash (OSCCA GM/T 0004-2012 SM3) generic hash transformation. Signed-off-by: NGilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 09 8月, 2017 1 次提交
-
-
由 Stephan Mueller 提交于
Use the NULL cipher to copy the AAD and PT/CT from the TX SGL to the RX SGL. This allows an in-place crypto operation on the RX SGL for encryption, because the TX data is always smaller or equal to the RX data (the RX data will hold the tag). For decryption, a per-request TX SGL is created which will only hold the tag value. As the RX SGL will have no space for the tag value and an in-place operation will not write the tag buffer, the TX SGL with the tag value is chained to the RX SGL. This now allows an in-place crypto operation. For example: * without the patch: kcapi -x 2 -e -c "gcm(aes)" -p 89154d0d4129d322e4487bafaa4f6b46 -k c0ece3e63198af382b5603331cc23fa8 -i 7e489b83622e7228314d878d -a afcd7202d621e06ca53b70c2bdff7fb2 -l 16 -u -s 00000000000000000000000000000000f4a3eacfbdadd3b1a17117b1d67ffc1f1e21efbbc6d83724a8c296e3bb8cda0c * with the patch: kcapi -x 2 -e -c "gcm(aes)" -p 89154d0d4129d322e4487bafaa4f6b46 -k c0ece3e63198af382b5603331cc23fa8 -i 7e489b83622e7228314d878d -a afcd7202d621e06ca53b70c2bdff7fb2 -l 16 -u -s afcd7202d621e06ca53b70c2bdff7fb2f4a3eacfbdadd3b1a17117b1d67ffc1f1e21efbbc6d83724a8c296e3bb8cda0c Tests covering this functionality have been added to libkcapi. Signed-off-by: NStephan Mueller <smueller@chronox.de> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 10 6月, 2017 1 次提交
-
-
由 Tudor-Dan Ambarus 提交于
Add support for generating ecc private keys. Generation of ecc private keys is helpful in a user-space to kernel ecdh offload because the keys are not revealed to user-space. Private key generation is also helpful to implement forward secrecy. If the user provides a NULL ecc private key, the kernel will generate it and further use it for ecdh. Move ecdh's object files below drbg's. drbg must be present in the kernel at the time of calling. Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: NStephan Müller <smueller@chronox.de> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 05 4月, 2017 1 次提交
-
-
由 Ondrej Mosnáček 提交于
Since the gf128mul_x_ble function used by xts.c is now defined inline in the header file, the XTS module no longer depends on gf128mul. Therefore, the 'select CRYPTO_GF128MUL' line can be safely removed. Signed-off-by: NOndrej Mosnacek <omosnacek@gmail.com> Reviewd-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 24 3月, 2017 2 次提交
-
-
由 Daniel Axtens 提交于
vpmsum implementations often don't kick in for short test vectors. This is a simple test module that does a configurable number of random tests, each up to 64kB and each with random offsets. Both CRC-T10DIF and CRC32C are tested. Cc: Anton Blanchard <anton@samba.org> Signed-off-by: NDaniel Axtens <dja@axtens.net> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Daniel Axtens 提交于
T10DIF is a CRC16 used heavily in NVMe. It turns out we can accelerate it with a CRC32 library and a few little tricks. Provide the accelerator based the refactored CRC32 code. Cc: Anton Blanchard <anton@samba.org> Thanks-to: Hong Bo Peng <penghb@cn.ibm.com> Signed-off-by: NDaniel Axtens <dja@axtens.net> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 23 2月, 2017 1 次提交
-
-
由 Milan Broz 提交于
Since the commit f1c131b4 crypto: xts - Convert to skcipher the XTS mode is based on ECB, so the mode must select ECB otherwise it can fail to initialize. Signed-off-by: NMilan Broz <gmazyland@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
- 11 2月, 2017 2 次提交
-
-
由 Ard Biesheuvel 提交于
Update the generic CCM driver to defer CBC-MAC processing to a dedicated CBC-MAC ahash transform rather than open coding this transform (and much of the associated scatterwalk plumbing) in the CCM driver itself. This cleans up the code considerably, but more importantly, it allows the use of alternative CBC-MAC implementations that don't suffer from performance degradation due to significant setup time (e.g., the NEON based AES code needs to enable/disable the NEON, and load the S-box into 16 SIMD registers, which cannot be amortized over the entire input when using the cipher interface) Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Ard Biesheuvel 提交于
Lookup table based AES is sensitive to timing attacks, which is due to the fact that such table lookups are data dependent, and the fact that 8 KB worth of tables covers a significant number of cachelines on any architecture, resulting in an exploitable correlation between the key and the processing time for known plaintexts. For network facing algorithms such as CTR, CCM or GCM, this presents a security risk, which is why arch specific AES ports are typically time invariant, either through the use of special instructions, or by using SIMD algorithms that don't rely on table lookups. For generic code, this is difficult to achieve without losing too much performance, but we can improve the situation significantly by switching to an implementation that only needs 256 bytes of table data (the actual S-box itself), which can be prefetched at the start of each block to eliminate data dependent latencies. This code encrypts at ~25 cycles per byte on ARM Cortex-A57 (while the ordinary generic AES driver manages 18 cycles per byte on this hardware). Decryption is substantially slower. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-