nettle-bugs

nettle-bugs@lists.lysator.liu.se

4 participants
2221 discussions

[AArch64] Fat build support for SHA-256 compress
by Maamoun TK 06 Jul '21

06 Jul '21

I made a merge request that adds fat build support for SHA-256 compress function !29 <https://git.lysator.liu.se/nettle/nettle/-/merge_requests/29> regards, Mamone

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[AArch64] Optimize SHA-256 compress
by Maamoun TK 02 Jul '21

02 Jul '21

I made a merge request !28 <https://git.lysator.liu.se/nettle/nettle/-/merge_requests/28> to the 'arm64-sha1' branch that optimizes SHA-256 compress function, I've added a brief description of the patch in addition to benchmark numbers in the MR description. A patch for fat build support will be followed in another merge request. regards, Mamone

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[Aarch64] Fat build support for SHA1 compress
by Maamoun TK 01 Jul '21

01 Jul '21

This patch added fat build support SHA1 compress function using the regular HWCAP features. --- arm64/fat/sha1-compress-2.asm | 37 +++++++++++++++++++++++++++++++++++++ fat-arm64.c | 32 ++++++++++++++++++++++++++++++-- 2 files changed, 67 insertions(+), 2 deletions(-) create mode 100644 arm64/fat/sha1-compress-2.asm diff --git a/arm64/fat/sha1-compress-2.asm b/arm64/fat/sha1-compress-2.asm new file mode 100644 index 00000000..b53cb63e --- /dev/null +++ b/arm64/fat/sha1-compress-2.asm @@ -0,0 +1,37 @@ +C arm64/fat/sha1-compress-2.asm + + +ifelse(` + Copyright (C) 2021 Mamone Tarsha + + This file is part of GNU Nettle. + + GNU Nettle is free software: you can redistribute it and/or + modify it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + + or + + * the GNU General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your + option) any later version. + + or both in parallel, as here. + + GNU Nettle is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received copies of the GNU General Public License and + the GNU Lesser General Public License along with this program. If + not, see http://www.gnu.org/licenses/. +') + +dnl PROLOGUE(nettle_sha1_compress) picked up by configure + +define(`fat_transform', `_$1_arm64') +include_src(`arm64/crypto/sha1-compress.asm') diff --git a/fat-arm64.c b/fat-arm64.c index 9f81951f..c696e9bb 100644 --- a/fat-arm64.c +++ b/fat-arm64.c @@ -61,10 +61,14 @@ #ifndef HWCAP_PMULL #define HWCAP_PMULL (1 << 4) #endif +#ifndef HWCAP_SHA1 +#define HWCAP_SHA1 (1 << 5) +#endif struct arm64_features { int have_pmull; + int have_sha1; }; #define MATCH(s, slen, literal, llen) \ @@ -75,6 +79,7 @@ get_arm64_features (struct arm64_features *features) { const char *s; features->have_pmull = 0; + features->have_sha1 = 0; s = secure_getenv (ENV_OVERRIDE); if (s) @@ -85,6 +90,8 @@ get_arm64_features (struct arm64_features *features) if (MATCH (s, length, "pmull", 5)) features->have_pmull = 1; + else if (MATCH (s, length, "sha1", 4)) + features->have_sha1 = 1; if (!sep) break; s = sep + 1; @@ -95,6 +102,8 @@ get_arm64_features (struct arm64_features *features) unsigned long hwcap = getauxval(AT_HWCAP); features->have_pmull = ((hwcap & (HWCAP_ASIMD | HWCAP_PMULL)) == (HWCAP_ASIMD | HWCAP_PMULL)); + features->have_sha1 + = ((hwcap & (HWCAP_ASIMD | HWCAP_SHA1)) == (HWCAP_ASIMD | HWCAP_SHA1)); #endif } } @@ -109,6 +118,10 @@ DECLARE_FAT_FUNC_VAR(gcm_hash, gcm_hash_func, c) DECLARE_FAT_FUNC_VAR(gcm_hash, gcm_hash_func, arm64) #endif /* GCM_TABLE_BITS == 8 */ +DECLARE_FAT_FUNC(nettle_sha1_compress, sha1_compress_func) +DECLARE_FAT_FUNC_VAR(sha1_compress, sha1_compress_func, c) +DECLARE_FAT_FUNC_VAR(sha1_compress, sha1_compress_func, arm64) + static void CONSTRUCTOR fat_init (void) { @@ -119,8 +132,9 @@ fat_init (void) verbose = getenv (ENV_VERBOSE) != NULL; if (verbose) - fprintf (stderr, "libnettle: cpu features: %s\n", - features.have_pmull ? "polynomial multiply long instructions (PMULL/PMULL2)" : ""); + fprintf (stderr, "libnettle: cpu features:%s%s\n", + features.have_pmull ? " polynomial multiply long instructions (PMULL/PMULL2)" : "", + features.have_sha1 ? " sha1 instructions" : ""); if (features.have_pmull) { @@ -142,6 +156,16 @@ fat_init (void) _nettle_gcm_hash_vec = _nettle_gcm_hash_c; #endif /* GCM_TABLE_BITS == 8 */ } + if (features.have_sha1) + { + if (verbose) + fprintf (stderr, "libnettle: enabling hardware-accelerated sha1 compress code.\n"); + nettle_sha1_compress_vec = _nettle_sha1_compress_arm64; + } + else + { + nettle_sha1_compress_vec = _nettle_sha1_compress_c; + } } #if GCM_TABLE_BITS == 8 @@ -154,3 +178,7 @@ DEFINE_FAT_FUNC(_nettle_gcm_hash, void, size_t length, const uint8_t *data), (key, x, length, data)) #endif /* GCM_TABLE_BITS == 8 */ + +DEFINE_FAT_FUNC(nettle_sha1_compress, void, + (uint32_t *state, const uint8_t *input), + (state, input)) -- 2.25.1

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Re: [S390x] Optimize AES modes
by Maamoun TK 30 Jun '21

30 Jun '21

Hi Niels, Did you get a chance to look at the recently posted patches? Thank you, Mamone

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ANNOUNCE: Nettle-3.7.3
by nisse＠lysator.liu.se 09 Jun '21

09 Jun '21

I've prepared a new bug-fix release of Nettle, a low-level cryptographics library, to fix bugs in the RSA decryption functions. The bugs cause crashes on certain invalid inputs, which could be used for denial of service attacks on applications using these functions. More details in NEWS file below. Upgrading is strongly recommended. The Nettle home page can be found at https://www.lysator.liu.se/~nisse/nettle/, and the manual at https://www.lysator.liu.se/~nisse/nettle/nettle.html. The release can be downloaded from https://ftp.gnu.org/gnu/nettle/nettle-3.7.3.tar.gz ftp://ftp.gnu.org/gnu/nettle/nettle-3.7.3.tar.gz https://www.lysator.liu.se/~nisse/archive/nettle-3.7.3.tar.gz Regards, /Niels NEWS for the Nettle 3.7.3 release This is bugfix release, fixing bugs that could make the RSA decryption functions crash on invalid inputs. Upgrading to the new version is strongly recommended. For applications that want to support older versions of Nettle, the bug can be worked around by adding a check that the RSA ciphertext is in the range 0 < ciphertext < n, before attempting to decrypt it. Thanks to Paul Schaub and Justus Winter for reporting these problems. The new version is intended to be fully source and binary compatible with Nettle-3.6. The shared library names are libnettle.so.8.4 and libhogweed.so.6.4, with sonames libnettle.so.8 and libhogweed.so.6. Bug fixes: * Fix crash for zero input to rsa_sec_decrypt and rsa_decrypt_tr. Potential denial of service vector. * Ensure that all of rsa_decrypt_tr and rsa_sec_decrypt return failure for out of range inputs, instead of either crashing, or silently reducing input modulo n. Potential denial of service vector. * Ensure that rsa_decrypt returns failure for out of range inputs, instead of silently reducing input modulo n. * Ensure that rsa_sec_decrypt returns failure if the message size is too large for the given key. Unlike the other bugs, this would typically be triggered by invalid local configuration, rather than by processing untrusted remote data. -- Niels Möller. PGP-encrypted email is preferred. Keyid 368C6677. Internet email is subject to wholesale government surveillance.

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[RFC PATCH 0/6] Introduce combined AES-GCM assembly for POWER9+
by Christopher M. Riedl 02 Jun '21

02 Jun '21

Hi! This series introduces a mechanism to support arch specific, combined AES+GCM {en,de}cryption functions. These functions are stubbed by default and will fall-back to the separate hash and crypt functions if no arch override exists. The arch override can be provided either at build time via appropriate config options or using the FAT runtime mechanism. An implementation combining AES+GCM _can potentially_ yield significant performance boosts by allowing for increased instruction parallelism, avoiding C-function call overhead, more flexibility in assembly fine-tuning, etc. This series provides such an implementation based on the existing optimized Nettle routines for POWER9 and later processors. Benchmark results on a POWER9 Blackbird running at 3.5GHz are given at the end of this mail. Both builds were configured statically ie. not FAT. FAT performance is slightly lower for both but shows similar gains with this series. The OpenSSL build is based on latest OpenSSL master with all PowerPC optimizations enabled. Note that the gains on an early POWER10 system are even more impressive but unfortunately I cannot share those results publically yet :( AES+GCM combined (this series) ------------------------------ Algorithm mode Mbyte/s gcm_aes128 encrypt 2567.62 gcm_aes128 decrypt 2582.32 gcm_aes128 update 7724.15 gcm_aes192 encrypt 2279.39 gcm_aes192 decrypt 2293.20 gcm_aes192 update 7724.41 gcm_aes256 encrypt 2054.09 gcm_aes256 decrypt 2061.25 gcm_aes256 update 7724.04 openssl gcm_aes128 encrypt 2336.93 openssl gcm_aes128 decrypt 2337.95 openssl gcm_aes128 update 6248.22 openssl gcm_aes192 encrypt 2113.93 openssl gcm_aes192 decrypt 2114.93 openssl gcm_aes192 update 6210.65 openssl gcm_aes256 encrypt 1936.95 openssl gcm_aes256 decrypt 1935.88 openssl gcm_aes256 update 6208.72 AES,GCM separate (nettle master) -------------------------------- Algorithm mode Mbyte/s gcm_aes128 encrypt 1418.66 gcm_aes128 decrypt 1418.97 gcm_aes128 update 7766.31 gcm_aes192 encrypt 1314.03 gcm_aes192 decrypt 1313.17 gcm_aes192 update 7760.23 gcm_aes256 encrypt 1218.75 gcm_aes256 decrypt 1218.64 gcm_aes256 update 7760.52 openssl gcm_aes128 encrypt 2324.70 openssl gcm_aes128 decrypt 2317.19 openssl gcm_aes128 update 6152.77 openssl gcm_aes192 encrypt 2102.99 openssl gcm_aes192 decrypt 2098.98 openssl gcm_aes192 update 6175.62 openssl gcm_aes256 encrypt 1925.85 openssl gcm_aes256 decrypt 1922.49 openssl gcm_aes256 update 6204.55 Christopher M. Riedl (6): gcm: Introduce gcm_aes_{de,en}crypt() ppc: Fix variable name for --enable-power-altivec ppc: Add FAT feature and config option for ISA 3.0 ppc: Add gcm_aes_encrypt() asm for ISA 3.0 (P9) ppc: Add gcm_aes_decrypt() asm for ISA 3.0 (P9) ppc: Enable gcm_aes_{de,en}crypt() FAT configure.ac | 19 +- fat-ppc.c | 45 ++ fat-setup.h | 6 + gcm-internal.h | 14 + gcm.c | 151 ++++++- powerpc64/fat/gcm-aes-decrypt.asm | 37 ++ powerpc64/fat/gcm-aes-encrypt.asm | 37 ++ powerpc64/p9/gcm-aes-decrypt.asm | 663 +++++++++++++++++++++++++++++ powerpc64/p9/gcm-aes-encrypt.asm | 666 ++++++++++++++++++++++++++++++ 9 files changed, 1630 insertions(+), 8 deletions(-) create mode 100644 powerpc64/fat/gcm-aes-decrypt.asm create mode 100644 powerpc64/fat/gcm-aes-encrypt.asm create mode 100644 powerpc64/p9/gcm-aes-decrypt.asm create mode 100644 powerpc64/p9/gcm-aes-encrypt.asm -- 2.26.1

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[Aarch64] Optimize SHA1 Compress
by Maamoun TK 02 Jun '21

02 Jun '21

This patch optimizes SHA1 compress function for arm64 architecture by taking advantage of SHA-1 instructions of Armv8 crypto extension. The SHA-1 instructions: SHA1C: SHA1 hash update (choose) SHA1H: SHA1 fixed rotate SHA1M: SHA1 hash update (majority) SHA1P: SHA1 hash update (parity) SHA1SU0: SHA1 schedule update 0 SHA1SU1: SHA1 schedule update 1 The patch is based on sha1-arm.c - ARMv8 SHA extensions using C intrinsics of repository https://github.com/noloader/SHA-Intrinsics by Jeffrey Walton. The patch passes the testsuite of nettle library and the benchmark numbers are considerably improved but the performance of the overall sha1 hash function doesn't surpass the corresponding openssl numbers. Benchmark on gcc117 instance of CFarm before applying the patch: Algorithm mode Mbyte/s sha1 update 214.16 openssl sha1 update 849.44 hmac-sha1 64 bytes 61.69 hmac-sha1 256 bytes 131.50 hmac-sha1 1024 bytes 185.20 hmac-sha1 4096 bytes 204.55 hmac-sha1 single msg 210.97 Benchmark on gcc117 instance of CFarm after applying the patch: Algorithm mode Mbyte/s sha1 update 795.57 openssl sha1 update 849.25 hmac-sha1 64 bytes 167.65 hmac-sha1 256 bytes 408.24 hmac-sha1 1024 bytes 636.68 hmac-sha1 4096 bytes 739.42 hmac-sha1 single msg 775.89 --- arm64/crypto/sha1-compress.asm | 245 +++++++++++++++++++++++++++++++++++++++++ arm64/machine.m4 | 7 ++ 2 files changed, 252 insertions(+) create mode 100644 arm64/crypto/sha1-compress.asm diff --git a/arm64/crypto/sha1-compress.asm b/arm64/crypto/sha1-compress.asm new file mode 100644 index 00000000..bb3f1d35 --- /dev/null +++ b/arm64/crypto/sha1-compress.asm @@ -0,0 +1,245 @@ +C arm64/crypto/sha1-compress.asm + +ifelse(` + Copyright (C) 2021 Mamone Tarsha + + Based on sha1-arm.c - ARMv8 SHA extensions using C intrinsics of + repository https://github.com/noloader/SHA-Intrinsics + sha1-arm.c is written and placed in public domain by Jeffrey Walton, + based on code from ARM, and by Johannes Schneiders, Skip + Hovsmith and Barry O'Rourke for the mbedTLS project. + + This file is part of GNU Nettle. + + GNU Nettle is free software: you can redistribute it and/or + modify it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + + or + + * the GNU General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your + option) any later version. + + or both in parallel, as here. + + GNU Nettle is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received copies of the GNU General Public License and + the GNU Lesser General Public License along with this program. If + not, see http://www.gnu.org/licenses/. +') + +.file "sha1-compress.asm" +.arch armv8-a+crypto + +.text + +C Register usage: + +define(`STATE', `x0') +define(`INPUT', `x1') + +define(`CONST0', `v0') +define(`CONST1', `v1') +define(`CONST2', `v2') +define(`CONST3', `v3') +define(`MSG0', `v4') +define(`MSG1', `v5') +define(`MSG2', `v6') +define(`MSG3', `v7') +define(`ABCD', `v16') +define(`ABCD_SAVED', `v17') +define(`E0', `v18') +define(`E0_SAVED', `v19') +define(`E1', `v20') +define(`TMP0', `v21') +define(`TMP1', `v22') + +C void nettle_sha1_compress(uint32_t *state, const uint8_t *input) + +PROLOGUE(nettle_sha1_compress) + C Initialize constants + mov w2,#0x7999 + movk w2,#0x5A82,lsl #16 + dup CONST0.4s,w2 + mov w2,#0xEBA1 + movk w2,#0x6ED9,lsl #16 + dup CONST1.4s,w2 + mov w2,#0xBCDC + movk w2,#0x8F1B,lsl #16 + dup CONST2.4s,w2 + mov w2,#0xC1D6 + movk w2,#0xCA62,lsl #16 + dup CONST3.4s,w2 + + C Load state + add x2,STATE,#16 + movi E0.4s,#0 + ld1 {ABCD.4s},[STATE] + ld1 {E0.s}[0],[x2] + + C Save state + mov ABCD_SAVED.16b,ABCD.16b + mov E0_SAVED.16b,E0.16b + + C Load message + ld1 {MSG0.16b,MSG1.16b,MSG2.16b,MSG3.16b},[INPUT] + + C Reverse for little endian + rev32 MSG0.16b,MSG0.16b + rev32 MSG1.16b,MSG1.16b + rev32 MSG2.16b,MSG2.16b + rev32 MSG3.16b,MSG3.16b + + add TMP0.4s,MSG0.4s,CONST0.4s + add TMP1.4s,MSG1.4s,CONST0.4s + + C Rounds 0-3 + sha1h SFP(E1),SFP(ABCD) + sha1c QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG2.4s,CONST0.4s + sha1su0 MSG0.4s,MSG1.4s,MSG2.4s + + C Rounds 4-7 + sha1h SFP(E0),SFP(ABCD) + sha1c QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG3.4s,CONST0.4s + sha1su1 MSG0.4s,MSG3.4s + sha1su0 MSG1.4s,MSG2.4s,MSG3.4s + + C Rounds 8-11 + sha1h SFP(E1),SFP(ABCD) + sha1c QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG0.4s,CONST0.4s + sha1su1 MSG1.4s,MSG0.4s + sha1su0 MSG2.4s,MSG3.4s,MSG0.4s + + C Rounds 12-15 + sha1h SFP(E0),SFP(ABCD) + sha1c QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG1.4s,CONST1.4s + sha1su1 MSG2.4s,MSG1.4s + sha1su0 MSG3.4s,MSG0.4s,MSG1.4s + + C Rounds 16-19 + sha1h SFP(E1),SFP(ABCD) + sha1c QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG2.4s,CONST1.4s + sha1su1 MSG3.4s,MSG2.4s + sha1su0 MSG0.4s,MSG1.4s,MSG2.4s + + C Rounds 20-23 + sha1h SFP(E0),SFP(ABCD) + sha1p QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG3.4s,CONST1.4s + sha1su1 MSG0.4s,MSG3.4s + sha1su0 MSG1.4s,MSG2.4s,MSG3.4s + + C Rounds 24-27 + sha1h SFP(E1),SFP(ABCD) + sha1p QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG0.4s,CONST1.4s + sha1su1 MSG1.4s,MSG0.4s + sha1su0 MSG2.4s,MSG3.4s,MSG0.4s + + C Rounds 28-31 + sha1h SFP(E0),SFP(ABCD) + sha1p QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG1.4s,CONST1.4s + sha1su1 MSG2.4s,MSG1.4s + sha1su0 MSG3.4s,MSG0.4s,MSG1.4s + + C Rounds 32-35 + sha1h SFP(E1),SFP(ABCD) + sha1p QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG2.4s,CONST2.4s + sha1su1 MSG3.4s,MSG2.4s + sha1su0 MSG0.4s,MSG1.4s,MSG2.4s + + C Rounds 36-39 + sha1h SFP(E0),SFP(ABCD) + sha1p QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG3.4s,CONST2.4s + sha1su1 MSG0.4s,MSG3.4s + sha1su0 MSG1.4s,MSG2.4s,MSG3.4s + + C Rounds 40-43 + sha1h SFP(E1),SFP(ABCD) + sha1m QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG0.4s,CONST2.4s + sha1su1 MSG1.4s,MSG0.4s + sha1su0 MSG2.4s,MSG3.4s,MSG0.4s + + C Rounds 44-47 + sha1h SFP(E0),SFP(ABCD) + sha1m QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG1.4s,CONST2.4s + sha1su1 MSG2.4s,MSG1.4s + sha1su0 MSG3.4s,MSG0.4s,MSG1.4s + + C Rounds 48-51 + sha1h SFP(E1),SFP(ABCD) + sha1m QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG2.4s,CONST2.4s + sha1su1 MSG3.4s,MSG2.4s + sha1su0 MSG0.4s,MSG1.4s,MSG2.4s + + C Rounds 52-55 + sha1h SFP(E0),SFP(ABCD) + sha1m QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG3.4s,CONST3.4s + sha1su1 MSG0.4s,MSG3.4s + sha1su0 MSG1.4s,MSG2.4s,MSG3.4s + + C Rounds 56-59 + sha1h SFP(E1),SFP(ABCD) + sha1m QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG0.4s,CONST3.4s + sha1su1 MSG1.4s,MSG0.4s + sha1su0 MSG2.4s,MSG3.4s,MSG0.4s + + C Rounds 60-63 + sha1h SFP(E0),SFP(ABCD) + sha1p QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG1.4s,CONST3.4s + sha1su1 MSG2.4s,MSG1.4s + sha1su0 MSG3.4s,MSG0.4s,MSG1.4s + + C Rounds 64-67 + sha1h SFP(E1),SFP(ABCD) + sha1p QFP(ABCD),SFP(E0),TMP0.4s + add TMP0.4s,MSG2.4s,CONST3.4s + sha1su1 MSG3.4s,MSG2.4s + sha1su0 MSG0.4s,MSG1.4s,MSG2.4s + + C Rounds 68-71 + sha1h SFP(E0),SFP(ABCD) + sha1p QFP(ABCD),SFP(E1),TMP1.4s + add TMP1.4s,MSG3.4s,CONST3.4s + sha1su1 MSG0.4s,MSG3.4s + + C Rounds 72-75 + sha1h SFP(E1),SFP(ABCD) + sha1p QFP(ABCD),SFP(E0),TMP0.4s + + C Rounds 76-79 + sha1h SFP(E0),SFP(ABCD) + sha1p QFP(ABCD),SFP(E1),TMP1.4s + + C Combine state + add E0.4s,E0.4s,E0_SAVED.4s + add ABCD.4s,ABCD.4s,ABCD_SAVED.4s + + C Store state + st1 {ABCD.4s},[STATE] + st1 {E0.s}[0],[x2] + + ret +EPILOGUE(nettle_sha1_compress) diff --git a/arm64/machine.m4 b/arm64/machine.m4 index e69de29b..7df62bcc 100644 --- a/arm64/machine.m4 +++ b/arm64/machine.m4 @@ -0,0 +1,7 @@ +C Get 32-bit floating-point register from vector register +C SFP(VR) +define(`SFP',``s'substr($1,1,len($1))') + +C Get 128-bit floating-point register from vector register +C QFP(VR) +define(`QFP',``q'substr($1,1,len($1))') -- 2.25.1

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Add AES Key Wrap (RFC 3394) in Nettle
by Nicolas Mora 24 May '21

24 May '21

Hello, I've added a merge request to implement AES key wrap and unwrap in Nettle [1]. The MR is not complete, because the tests haven't been pushed yet and the documentation is missing, but if the new functionality is welcome to Nettle, I'd rather have some feedback on the code first, to make sure it respects the project guidelines. I can add tests based on the tests vectors in the RFC [2], but I'm not sure how the test suites are build, should I need to create test_wrap functions like in aes-test.c or something else? Thanks in advance for your help! /Nicolas [1] https://tools.ietf.org/html/rfc3394 [2] https://tools.ietf.org/html/rfc3394#section-4

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Re: [S390x] Optimize AES modes
by Maamoun TK 22 May '21

22 May '21

Hi, Niels Did you get the credentials of the new VM? I'm thinking after adding the address and ssh key of new VM, we can't get the optimized cores of AES tested since enable-msa isn't triggered. We need to push some sort of hard-coded option in configure.ac to get it tested in the VM during ci job. regards, Mamone On Mon, May 10, 2021 at 6:13 PM Niels Möller <nisse(a)lysator.liu.se> wrote: > David Edelsohn <dje.gcc(a)gmail.com> writes: > > > They are going to create a new VM on a separate Open Source Software > > Cloud for long-term projects. They will contact you directly with the > > credentials. > > Sounds good. Thanks for the update. > > Regards, > /Niels > > -- > Niels Möller. PGP-encrypted email is preferred. Keyid 368C6677. > Internet email is subject to wholesale government surveillance. >

2 3

Re: [S390x] Optimize AES modes
by Maamoun TK 10 May '21

10 May '21

I made a new merge request to s390x branch Add AES API for CBC mode (!24) · Merge requests · Nettle / nettle · GitLab (liu.se) <https://git.lysator.liu.se/nettle/nettle/-/merge_requests/24> This api is required to handle the optimized CBC cores which will be added later. regards, Mamone

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