mirror of
https://github.com/BLAKE2/BLAKE2
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71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
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/*
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BLAKE2 reference source code package - optimized C implementations
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Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
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terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
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your option. The terms of these licenses can be found at:
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- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
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- OpenSSL license : https://www.openssl.org/source/license.html
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- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
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More information about the BLAKE2 hash function can be found at
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https://blake2.net.
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*/
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#ifndef BLAKE2S_ROUND_H
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#define BLAKE2S_ROUND_H
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#define vrorq_n_u32_16(x) vreinterpretq_u32_u16( \
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vrev32q_u16( \
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vreinterpretq_u16_u32(x)))
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#define vrorq_n_u32_12(x) vorrq_u32( \
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vshrq_n_u32(x, 12), \
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vshlq_n_u32(x, 20));
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#define vrorq_n_u32_8(x) vorrq_u32( \
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vshrq_n_u32(x, 8), \
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vshlq_n_u32(x, 24));
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#define vrorq_n_u32_7(x) vorrq_u32( \
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vshrq_n_u32(x, 7), \
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vshlq_n_u32(x, 25));
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#define G1(row1,row2,row3,row4,buf) \
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row1 = vaddq_u32(row1, vaddq_u32(row2, buf)); \
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row4 = vrorq_n_u32_16(veorq_u32(row4, row1)); \
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row3 = vaddq_u32(row3, row4); \
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row2 = vrorq_n_u32_12(veorq_u32(row2, row3));
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#define G2(row1, row2, row3, row4,buf) \
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row1 = vaddq_u32(row1, vaddq_u32(row2, buf)); \
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row4 = vrorq_n_u32_8(veorq_u32(row4, row1)); \
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row3 = vaddq_u32(row3, row4); \
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row2 = vrorq_n_u32_7(veorq_u32(row2, row3));
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#define DIAGONALIZE(row1,row2,row3,row4) \
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row2 = vextq_u32(row2, row2, 1); \
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row3 = vextq_u32(row3, row3, 2); \
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row4 = vextq_u32(row4, row4, 3);
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#define UNDIAGONALIZE(row1,row2,row3,row4) \
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row2 = vextq_u32(row2, row2, 3); \
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row3 = vextq_u32(row3, row3, 2); \
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row4 = vextq_u32(row4, row4, 1);
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#include "blake2s-load-neon.h"
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#define ROUND(r) \
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LOAD_MSG_ ##r ##_1(buf1); \
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G1(row1, row2, row3, row4, buf1); \
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LOAD_MSG_ ##r ##_2(buf2); \
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G2(row1, row2, row3, row4, buf2); \
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DIAGONALIZE(row1, row2, row3, row4); \
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LOAD_MSG_ ##r ##_3(buf3); \
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G1(row1, row2, row3, row4, buf3); \
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LOAD_MSG_ ##r ##_4(buf4); \
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G2(row1, row2, row3, row4, buf4); \
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UNDIAGONALIZE(row1, row2, row3, row4);
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#endif
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