fe182ba1d0
Some x86 class CPUs have accelerated intrinsics for SHA1 and SHA256. Provide this functionality on CPUs that support it. This implements CRYPTO_SHA1, CRYPTO_SHA1_HMAC, and CRYPTO_SHA2_256_HMAC. Correctness: The cryptotest.py suite in tests/sys/opencrypto has been enhanced to verify SHA1 and SHA256 HMAC using standard NIST test vectors. The test passes on this driver. Additionally, jhb's cryptocheck tool has been used to compare various random inputs against OpenSSL. This test also passes. Rough performance averages on AMD Ryzen 1950X (4kB buffer): aesni: SHA1: ~8300 Mb/s SHA256: ~8000 Mb/s cryptosoft: ~1800 Mb/s SHA256: ~1800 Mb/s So ~4.4-4.6x speedup depending on algorithm choice. This is consistent with the results the Linux folks saw for 4kB buffers. The driver borrows SHA update code from sys/crypto sha1 and sha256. The intrinsic step function comes from Intel under a 3-clause BSDL.[0] The intel_sha_extensions_sha<foo>_intrinsic.c files were renamed and lightly modified (added const, resolved a warning or two; included the sha_sse header to declare the functions). [0]: https://software.intel.com/en-us/articles/intel-sha-extensions-implementations Reviewed by: jhb Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D12452
39 lines
1.7 KiB
C
39 lines
1.7 KiB
C
/*-
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* Copyright (c) 2017 Conrad Meyer <cem@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _CRYPTO__SHA_SSE_H_
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#define _CRYPTO__SHA_SSE_H_
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/*
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* Internal functions, implemented in intrinsics.
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*/
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void intel_sha1_step(uint32_t *digest, const char *data, uint32_t num_blks);
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void intel_sha256_step(uint32_t *digest, const char *data, uint32_t num_blks);
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#endif /* _CRYPTO__SHA_SSE_H_ */
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