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* global: fix up spellingJosh Soref2019-12-121-1/+1
| | | | Signed-off-by: Josh Soref <jsoref@gmail.com>
* chacha20poly1305: double check the sgmiter logic with testJason A. Donenfeld2019-12-061-8/+59
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* crypto: use new assembler macros for 5.5Jason A. Donenfeld2019-12-055-14/+14
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* chacha20poly1305: port to sgmitter for 5.5Jason A. Donenfeld2019-12-053-114/+143
| | | | | I'm not totally comfortable with these changes yet, and it'll require some more scrutiny. But it's a start.
* blake2s: spacingJason A. Donenfeld2019-06-032-123/+123
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* curve25519: not all linkers support bmi2 and adxJason A. Donenfeld2019-06-022-6/+48
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* blake2s: add ssse3 to nobsJason A. Donenfeld2019-05-311-1/+2
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* blake2s: do not use xgetbv for ssse3 detectionJason A. Donenfeld2019-05-311-3/+1
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* zinc: update copyrightJason A. Donenfeld2019-05-292-2/+2
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* blake2s: shorten ssse3 loopSamuel Neves2019-05-291-857/+66
| | | | | | | This (mostly) preserves the performance (as measured on Haswell and *lake) of last commit, but it drastically reduces code size. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* blake2s,chacha: latency tweakSamuel Neves2019-05-295-618/+982
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In every odd-numbered round, instead of operating over the state x00 x01 x02 x03 x05 x06 x07 x04 x10 x11 x08 x09 x15 x12 x13 x14 we operate over the rotated state x03 x00 x01 x02 x04 x05 x06 x07 x09 x10 x11 x08 x14 x15 x12 x13 The advantage here is that this requires no changes to the 'x04 x05 x06 x07' row, which is in the critical path. This results in a noticeable latency improvement of roughly R cycles, for R diagonal rounds in the primitive. In the case of BLAKE2s, which I also moved from requiring AVX to only requiring SSSE3, we save approximately 30 cycles per compression function call on Haswell and Skylake. In other words, this is an improvement of ~0.6 cpb. This idea was pointed out to me by Shunsuke Shimizu, though it appears to have been around for longer. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* zinc: arm64: use cpu_get_elf_hwcap accessor for 5.2Jason A. Donenfeld2019-05-292-2/+2
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* kbuild: account for recent upstream changesJason A. Donenfeld2019-05-291-1/+1
| | | | | | | Apparently cdd750bfb1f76fe9be8cfb53cbe77b2e811081ab changed things, so we fall back onto this hack. Reported-by: Alex Xu <alex@alxu.ca>
* blake2s: remove outlen parameter from finalJason A. Donenfeld2019-03-272-8/+7
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* blake2s: simplifySamuel Neves2019-03-272-40/+12
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: name enumsJason A. Donenfeld2019-02-041-2/+2
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* noise: store clamped key instead of raw keyJason A. Donenfeld2019-02-035-14/+13
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* chacha20poly1305: permit unaligned strides on certain platformsJason A. Donenfeld2019-02-031-18/+14
| | | | | | | The map allocations required to fix this are mostly slower than unaligned paths. Reported-by: Louis Sautier <sbraz@gentoo.org>
* global: normalize -> clampJason A. Donenfeld2019-01-234-17/+10
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* global: update copyrightJason A. Donenfeld2019-01-0737-37/+37
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* makefile: use immediate expansion and use correct template patternsJason A. Donenfeld2018-12-181-6/+6
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* chacha20: do not define unused asm functionJason A. Donenfeld2018-12-071-4/+2
| | | | | | This causes RAP to be unhappy, and we're not using it anyway. Reported-by: Ivan J. <parazyd@dyne.org>
* chacha20,poly1305: simplify perlasm fancinessJason A. Donenfeld2018-12-073-75/+69
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* chacha20,poly1305: do not use xlateJason A. Donenfeld2018-11-193-1496/+73
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* poly1305: make frame pointers for auxiliary callsSamuel Neves2018-11-171-31/+43
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* crypto: better path resolution and more specific generated .SJason A. Donenfeld2018-11-161-6/+5
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* chacha20,poly1305: don't do compiler testing in generator and remove xor helperJason A. Donenfeld2018-11-152-30/+39
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* crypto: resolve target prefix on buggy kernelsJason A. Donenfeld2018-11-151-1/+6
| | | | | We also move to .SECONDARY, since older kernels don't use targets like that.
* poly1305: cleanup leftover debugging changesJason A. Donenfeld2018-11-151-3/+3
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* poly1305: only export neon symbols when in useJason A. Donenfeld2018-11-151-2/+6
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* chacha20,poly1305: fix up for win64Samuel Neves2018-11-152-27/+29
| | | | | | | These don't help us, but it is important to keep this working for when it's re-added to cryptogams. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* perlasm: avoid rep retJason A. Donenfeld2018-11-151-1/+1
| | | | | | | | The original hardcodes returns as .byte 0xf3,0xc3, aka "rep ret". We replace this by "ret". "rep ret" was meant to help with AMD K8 chips, cf. http://repzret.org/p/repzret. It makes no sense to continue to use this kludge for code that won't even run on ancient AMD chips.
* poly1305: specialize to wireguardJason A. Donenfeld2018-11-151-11/+20
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* chacha20: specialize to wireguardJason A. Donenfeld2018-11-152-20/+38
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* perlasm: cleanup whitespaceJason A. Donenfeld2018-11-151-5/+5
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* poly1305: adjust to kernelSamuel Neves2018-11-151-220/+291
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: cleaner function declarationsSamuel Neves2018-11-141-23/+23
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: normalize namesSamuel Neves2018-11-141-71/+71
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: fixup win64 stack offsetsSamuel Neves2018-11-141-129/+129
| | | | | | We don't need to do this for kernel purposes, but it's polite to leave things unbroken. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: simplify stack unwinding on ChaCha20_ctr32Samuel Neves2018-11-141-10/+8
| | | | | | objtool did not quite understand the stack arithmetic employed here. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: use DRAP idiomSamuel Neves2018-11-141-236/+235
| | | | | | This effectively means swapping the usage of %r9 and %r10 globally. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: add hchacha_ssse3Samuel Neves2018-11-141-0/+39
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: begin adapting to kernel settingSamuel Neves2018-11-142-68/+116
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20,poly1305: switch to perlasm originals on x86_64Samuel Neves2018-11-145-5424/+9596
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20,poly1305: use CONFIG_KERNEL_MODE_NEON in .pl on armJason A. Donenfeld2018-11-144-8/+11
| | | | | | While Andy is right to desire a separation between compiler defines and project defines, there are simply too many odd kernel configurations and we require testing for CONFIG_KERNEL_MODE_NEON.
* chacha20,poly1305: switch to perlasm originals on mips and armJason A. Donenfeld2018-11-1412-6104/+5570
| | | | | We also separate out Eric Biggers' Cortex A7 implementation into its own file.
* global: various formatting tweeksJason A. Donenfeld2018-11-132-2/+1
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* curve25519-x86_64: this was relicensed to BSD-3-Clause upstreamJason A. Donenfeld2018-10-271-1/+1
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* poly1305-donna64: mark large constants as ULLJason A. Donenfeld2018-10-271-24/+24
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* crypto: clean up remaining .h->.cJason A. Donenfeld2018-10-078-10/+10
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