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blake256: Replace with working implementation
This commit is contained in:
Saleem Rashid
Pavol Rusnak
parent
74e74f5eed
commit
2782467555
567
blake256.c
567
blake256.c
@ -1,374 +1,235 @@
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// Copyright (c) 2014-2017, The Monero Project
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//
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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 modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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/*
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* The blake256_* and blake224_* functions are largely copied from
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* blake256_light.c and blake224_light.c from the BLAKE website:
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*
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* http://131002.net/blake/
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*
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* The hmac_* functions implement HMAC-BLAKE-256 and HMAC-BLAKE-224.
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* HMAC is specified by RFC 2104.
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*/
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BLAKE reference C implementation
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#include <string.h>
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#include <stdint.h>
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Copyright (c) 2012 Jean-Philippe Aumasson <jeanphilippe.aumasson@gmail.com>
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To the extent possible under law, the author(s) have dedicated all copyright
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and related and neighboring rights to this software to the public domain
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worldwide. This software is distributed without any warranty.
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You should have received a copy of the CC0 Public Domain Dedication along with
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this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#include "blake256.h"
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#define U8TO32(p) \
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(((uint32_t)((p)[0]) << 24) | ((uint32_t)((p)[1]) << 16) | \
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((uint32_t)((p)[2]) << 8) | ((uint32_t)((p)[3]) ))
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#define U32TO8(p, v) \
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(p)[0] = (uint8_t)((v) >> 24); (p)[1] = (uint8_t)((v) >> 16); \
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(p)[2] = (uint8_t)((v) >> 8); (p)[3] = (uint8_t)((v) );
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#include <string.h>
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static const uint8_t sigma[][16] = {
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15},
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{14,10, 4, 8, 9,15,13, 6, 1,12, 0, 2,11, 7, 5, 3},
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{11, 8,12, 0, 5, 2,15,13,10,14, 3, 6, 7, 1, 9, 4},
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{ 7, 9, 3, 1,13,12,11,14, 2, 6, 5,10, 4, 0,15, 8},
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{ 9, 0, 5, 7, 2, 4,10,15,14, 1,11,12, 6, 8, 3,13},
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{ 2,12, 6,10, 0,11, 8, 3, 4,13, 7, 5,15,14, 1, 9},
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{12, 5, 1,15,14,13, 4,10, 0, 7, 6, 3, 9, 2, 8,11},
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{13,11, 7,14,12, 1, 3, 9, 5, 0,15, 4, 8, 6, 2,10},
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{ 6,15,14, 9,11, 3, 0, 8,12, 2,13, 7, 1, 4,10, 5},
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{10, 2, 8, 4, 7, 6, 1, 5,15,11, 9,14, 3,12,13, 0},
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15},
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{14,10, 4, 8, 9,15,13, 6, 1,12, 0, 2,11, 7, 5, 3},
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{11, 8,12, 0, 5, 2,15,13,10,14, 3, 6, 7, 1, 9, 4},
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{ 7, 9, 3, 1,13,12,11,14, 2, 6, 5,10, 4, 0,15, 8}
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#define U8TO32_BIG(p) \
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(((uint32_t)((p)[0]) << 24) | ((uint32_t)((p)[1]) << 16) | \
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((uint32_t)((p)[2]) << 8) | ((uint32_t)((p)[3]) ))
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#define U32TO8_BIG(p, v) \
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(p)[0] = (uint8_t)((v) >> 24); (p)[1] = (uint8_t)((v) >> 16); \
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(p)[2] = (uint8_t)((v) >> 8); (p)[3] = (uint8_t)((v) );
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static const uint8_t sigma[][16] =
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{
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
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{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
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{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
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{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
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{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
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{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
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{12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 },
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{13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 },
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{ 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 },
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{10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 },
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
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{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
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{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
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{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
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{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
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{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 }
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};
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static const uint32_t cst[16] = {
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0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
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0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
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0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
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0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917
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static const uint32_t u256[16] =
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{
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0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
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0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
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0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
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0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917
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};
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static const uint8_t padding[] = {
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0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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static const uint8_t padding[129] =
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{
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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static void blake256_compress( BLAKE256_CTX *S, const uint8_t *block )
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{
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uint32_t v[16], m[16], i;
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#define ROT(x,n) (((x)<<(32-n))|( (x)>>(n)))
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#define G(a,b,c,d,e) \
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v[a] += (m[sigma[i][e]] ^ u256[sigma[i][e+1]]) + v[b]; \
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v[d] = ROT( v[d] ^ v[a],16); \
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v[c] += v[d]; \
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v[b] = ROT( v[b] ^ v[c],12); \
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v[a] += (m[sigma[i][e+1]] ^ u256[sigma[i][e]])+v[b]; \
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v[d] = ROT( v[d] ^ v[a], 8); \
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v[c] += v[d]; \
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v[b] = ROT( v[b] ^ v[c], 7);
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static void blake256_compress(BLAKE256_CTX *S, const uint8_t *block) {
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uint32_t v[16], m[16], i;
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for( i = 0; i < 16; ++i ) m[i] = U8TO32_BIG( block + i * 4 );
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#define ROT(x,n) (((x)<<(32-n))|((x)>>(n)))
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#define G(a,b,c,d,e) \
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v[a] += (m[sigma[i][e]] ^ cst[sigma[i][e+1]]) + v[b]; \
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v[d] = ROT(v[d] ^ v[a],16); \
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v[c] += v[d]; \
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v[b] = ROT(v[b] ^ v[c],12); \
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v[a] += (m[sigma[i][e+1]] ^ cst[sigma[i][e]])+v[b]; \
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v[d] = ROT(v[d] ^ v[a], 8); \
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v[c] += v[d]; \
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v[b] = ROT(v[b] ^ v[c], 7);
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for( i = 0; i < 8; ++i ) v[i] = S->h[i];
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for (i = 0; i < 16; ++i) m[i] = U8TO32(block + i * 4);
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for (i = 0; i < 8; ++i) v[i] = S->h[i];
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v[ 8] = S->s[0] ^ 0x243F6A88;
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v[ 9] = S->s[1] ^ 0x85A308D3;
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v[10] = S->s[2] ^ 0x13198A2E;
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v[11] = S->s[3] ^ 0x03707344;
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v[12] = 0xA4093822;
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v[13] = 0x299F31D0;
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v[14] = 0x082EFA98;
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v[15] = 0xEC4E6C89;
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v[ 8] = S->s[0] ^ u256[0];
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v[ 9] = S->s[1] ^ u256[1];
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v[10] = S->s[2] ^ u256[2];
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v[11] = S->s[3] ^ u256[3];
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v[12] = u256[4];
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v[13] = u256[5];
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v[14] = u256[6];
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v[15] = u256[7];
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if (S->nullt == 0) {
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v[12] ^= S->t[0];
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v[13] ^= S->t[0];
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v[14] ^= S->t[1];
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v[15] ^= S->t[1];
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/* don't xor t when the block is only padding */
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if ( !S->nullt )
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{
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v[12] ^= S->t[0];
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v[13] ^= S->t[0];
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v[14] ^= S->t[1];
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v[15] ^= S->t[1];
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}
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for( i = 0; i < 14; ++i )
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{
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/* column step */
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G( 0, 4, 8, 12, 0 );
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G( 1, 5, 9, 13, 2 );
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G( 2, 6, 10, 14, 4 );
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G( 3, 7, 11, 15, 6 );
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/* diagonal step */
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G( 0, 5, 10, 15, 8 );
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G( 1, 6, 11, 12, 10 );
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G( 2, 7, 8, 13, 12 );
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G( 3, 4, 9, 14, 14 );
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}
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for( i = 0; i < 16; ++i ) S->h[i % 8] ^= v[i];
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for( i = 0; i < 8 ; ++i ) S->h[i] ^= S->s[i % 4];
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}
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void blake256_Init( BLAKE256_CTX *S )
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{
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S->h[0] = 0x6a09e667;
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S->h[1] = 0xbb67ae85;
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S->h[2] = 0x3c6ef372;
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S->h[3] = 0xa54ff53a;
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S->h[4] = 0x510e527f;
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S->h[5] = 0x9b05688c;
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S->h[6] = 0x1f83d9ab;
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S->h[7] = 0x5be0cd19;
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S->t[0] = S->t[1] = S->buflen = S->nullt = 0;
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S->s[0] = S->s[1] = S->s[2] = S->s[3] = 0;
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}
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void blake256_Update( BLAKE256_CTX *S, const uint8_t *in, size_t inlen )
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{
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size_t left = S->buflen;
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size_t fill = 64 - left;
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/* data left and data received fill a block */
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if( left && ( inlen >= fill ) )
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{
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memcpy( ( void * ) ( S->buf + left ), ( void * ) in, fill );
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S->t[0] += 512;
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if ( S->t[0] == 0 ) S->t[1]++;
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blake256_compress( S, S->buf );
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in += fill;
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inlen -= fill;
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left = 0;
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}
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/* compress blocks of data received */
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while( inlen >= 64 )
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{
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S->t[0] += 512;
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if ( S->t[0] == 0 ) S->t[1]++;
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blake256_compress( S, in );
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in += 64;
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inlen -= 64;
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}
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/* store any data left */
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if( inlen > 0 )
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{
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memcpy( ( void * ) ( S->buf + left ), \
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( void * ) in, ( size_t ) inlen );
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S->buflen = left + ( int )inlen;
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}
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else S->buflen = 0;
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}
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void blake256_Final( BLAKE256_CTX *S, uint8_t *out )
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{
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uint8_t msglen[8], zo = 0x01, oo = 0x81;
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uint32_t lo = S->t[0] + ( S->buflen << 3 ), hi = S->t[1];
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/* support for hashing more than 2^32 bits */
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if ( lo < ( S->buflen << 3 ) ) hi++;
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U32TO8_BIG( msglen + 0, hi );
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U32TO8_BIG( msglen + 4, lo );
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if ( S->buflen == 55 ) /* one padding byte */
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{
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S->t[0] -= 8;
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blake256_Update( S, &oo, 1 );
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}
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else
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{
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if ( S->buflen < 55 ) /* enough space to fill the block */
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{
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if ( !S->buflen ) S->nullt = 1;
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S->t[0] -= 440 - ( S->buflen << 3 );
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blake256_Update( S, padding, 55 - S->buflen );
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}
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else /* need 2 compressions */
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{
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S->t[0] -= 512 - ( S->buflen << 3 );
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blake256_Update( S, padding, 64 - S->buflen );
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S->t[0] -= 440;
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blake256_Update( S, padding + 1, 55 );
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S->nullt = 1;
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}
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for (i = 0; i < 14; ++i) {
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G(0, 4, 8, 12, 0);
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G(1, 5, 9, 13, 2);
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G(2, 6, 10, 14, 4);
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G(3, 7, 11, 15, 6);
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G(3, 4, 9, 14, 14);
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G(2, 7, 8, 13, 12);
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G(0, 5, 10, 15, 8);
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G(1, 6, 11, 12, 10);
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}
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blake256_Update( S, &zo, 1 );
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S->t[0] -= 8;
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}
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for (i = 0; i < 16; ++i) S->h[i % 8] ^= v[i];
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for (i = 0; i < 8; ++i) S->h[i] ^= S->s[i % 4];
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S->t[0] -= 64;
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blake256_Update( S, msglen, 8 );
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U32TO8_BIG( out + 0, S->h[0] );
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U32TO8_BIG( out + 4, S->h[1] );
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U32TO8_BIG( out + 8, S->h[2] );
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U32TO8_BIG( out + 12, S->h[3] );
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U32TO8_BIG( out + 16, S->h[4] );
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U32TO8_BIG( out + 20, S->h[5] );
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U32TO8_BIG( out + 24, S->h[6] );
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U32TO8_BIG( out + 28, S->h[7] );
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}
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void blake256_Init(BLAKE256_CTX *S) {
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S->h[0] = 0x6A09E667;
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S->h[1] = 0xBB67AE85;
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S->h[2] = 0x3C6EF372;
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S->h[3] = 0xA54FF53A;
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S->h[4] = 0x510E527F;
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S->h[5] = 0x9B05688C;
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S->h[6] = 0x1F83D9AB;
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S->h[7] = 0x5BE0CD19;
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S->t[0] = S->t[1] = S->buflen = S->nullt = 0;
|
||||
S->s[0] = S->s[1] = S->s[2] = S->s[3] = 0;
|
||||
}
|
||||
|
||||
void blake224_Init(BLAKE256_CTX *S) {
|
||||
S->h[0] = 0xC1059ED8;
|
||||
S->h[1] = 0x367CD507;
|
||||
S->h[2] = 0x3070DD17;
|
||||
S->h[3] = 0xF70E5939;
|
||||
S->h[4] = 0xFFC00B31;
|
||||
S->h[5] = 0x68581511;
|
||||
S->h[6] = 0x64F98FA7;
|
||||
S->h[7] = 0xBEFA4FA4;
|
||||
S->t[0] = S->t[1] = S->buflen = S->nullt = 0;
|
||||
S->s[0] = S->s[1] = S->s[2] = S->s[3] = 0;
|
||||
}
|
||||
|
||||
// datalen = number of bits
|
||||
static void blake256_update(BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
int left = S->buflen >> 3;
|
||||
int fill = 64 - left;
|
||||
|
||||
if (left && (((datalen >> 3) & 0x3F) >= (unsigned) fill)) {
|
||||
memcpy((void *) (S->buf + left), (void *) data, fill);
|
||||
S->t[0] += 512;
|
||||
if (S->t[0] == 0) S->t[1]++;
|
||||
blake256_compress(S, S->buf);
|
||||
data += fill;
|
||||
datalen -= (fill << 3);
|
||||
left = 0;
|
||||
}
|
||||
|
||||
while (datalen >= 512) {
|
||||
S->t[0] += 512;
|
||||
if (S->t[0] == 0) S->t[1]++;
|
||||
blake256_compress(S, data);
|
||||
data += 64;
|
||||
datalen -= 512;
|
||||
}
|
||||
|
||||
if (datalen > 0) {
|
||||
memcpy((void *) (S->buf + left), (void *) data, datalen >> 3);
|
||||
S->buflen = (left << 3) + datalen;
|
||||
} else {
|
||||
S->buflen = 0;
|
||||
}
|
||||
}
|
||||
|
||||
// datalen = number of bytes
|
||||
void blake256_Update(BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
blake256_update(S, data, datalen * 8);
|
||||
}
|
||||
|
||||
// datalen = number of bits
|
||||
static void blake224_update(BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
blake256_update(S, data, datalen);
|
||||
}
|
||||
|
||||
// datalen = number of bytes
|
||||
void blake224_Update(BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
blake224_update(S, data, datalen * 8);
|
||||
}
|
||||
|
||||
static void blake256_final_h(BLAKE256_CTX *S, uint8_t *digest, uint8_t pa, uint8_t pb) {
|
||||
uint8_t msglen[8];
|
||||
uint32_t lo = S->t[0] + S->buflen, hi = S->t[1];
|
||||
if (lo < (unsigned) S->buflen) hi++;
|
||||
U32TO8(msglen + 0, hi);
|
||||
U32TO8(msglen + 4, lo);
|
||||
|
||||
if (S->buflen == 440) { /* one padding byte */
|
||||
S->t[0] -= 8;
|
||||
blake256_update(S, &pa, 8);
|
||||
} else {
|
||||
if (S->buflen < 440) { /* enough space to fill the block */
|
||||
if (S->buflen == 0) S->nullt = 1;
|
||||
S->t[0] -= 440 - S->buflen;
|
||||
blake256_update(S, padding, 440 - S->buflen);
|
||||
} else { /* need 2 compressions */
|
||||
S->t[0] -= 512 - S->buflen;
|
||||
blake256_update(S, padding, 512 - S->buflen);
|
||||
S->t[0] -= 440;
|
||||
blake256_update(S, padding + 1, 440);
|
||||
S->nullt = 1;
|
||||
}
|
||||
blake256_update(S, &pb, 8);
|
||||
S->t[0] -= 8;
|
||||
}
|
||||
S->t[0] -= 64;
|
||||
blake256_update(S, msglen, 64);
|
||||
|
||||
U32TO8(digest + 0, S->h[0]);
|
||||
U32TO8(digest + 4, S->h[1]);
|
||||
U32TO8(digest + 8, S->h[2]);
|
||||
U32TO8(digest + 12, S->h[3]);
|
||||
U32TO8(digest + 16, S->h[4]);
|
||||
U32TO8(digest + 20, S->h[5]);
|
||||
U32TO8(digest + 24, S->h[6]);
|
||||
U32TO8(digest + 28, S->h[7]);
|
||||
}
|
||||
|
||||
void blake256_Final(BLAKE256_CTX *S, uint8_t *digest) {
|
||||
blake256_final_h(S, digest, 0x81, 0x01);
|
||||
}
|
||||
|
||||
void blake224_Final(BLAKE256_CTX *S, uint8_t *digest) {
|
||||
blake256_final_h(S, digest, 0x80, 0x00);
|
||||
}
|
||||
|
||||
// inlen = number of bytes
|
||||
void blake256(const uint8_t *in, size_t inlen, uint8_t *out) {
|
||||
BLAKE256_CTX S;
|
||||
blake256_Init(&S);
|
||||
blake256_Update(&S, in, inlen);
|
||||
blake256_Final(&S, out);
|
||||
}
|
||||
|
||||
// inlen = number of bytes
|
||||
void blake224(const uint8_t *in, size_t inlen, uint8_t *out) {
|
||||
BLAKE256_CTX S;
|
||||
blake224_Init(&S);
|
||||
blake224_Update(&S, in, inlen);
|
||||
blake224_Final(&S, out);
|
||||
}
|
||||
|
||||
// keylen = number of bytes
|
||||
void hmac_blake256_Init(HMAC_BLAKE256_CTX *S, const uint8_t *_key, size_t keylen) {
|
||||
const uint8_t *key = _key;
|
||||
uint8_t keyhash[32];
|
||||
uint8_t pad[64];
|
||||
size_t i;
|
||||
|
||||
if (keylen > 64) {
|
||||
blake256(key, keylen, keyhash);
|
||||
key = keyhash;
|
||||
keylen = 32;
|
||||
}
|
||||
|
||||
blake256_Init(&S->inner);
|
||||
memset(pad, 0x36, 64);
|
||||
for (i = 0; i < keylen; ++i) {
|
||||
pad[i] ^= key[i];
|
||||
}
|
||||
blake256_update(&S->inner, pad, 512);
|
||||
|
||||
blake256_Init(&S->outer);
|
||||
memset(pad, 0x5c, 64);
|
||||
for (i = 0; i < keylen; ++i) {
|
||||
pad[i] ^= key[i];
|
||||
}
|
||||
blake256_update(&S->outer, pad, 512);
|
||||
|
||||
memset(keyhash, 0, 32);
|
||||
}
|
||||
|
||||
// keylen = number of bytes
|
||||
void hmac_blake224_Init(HMAC_BLAKE256_CTX *S, const uint8_t *_key, size_t keylen) {
|
||||
const uint8_t *key = _key;
|
||||
uint8_t keyhash[32];
|
||||
uint8_t pad[64];
|
||||
size_t i;
|
||||
|
||||
if (keylen > 64) {
|
||||
blake256(key, keylen, keyhash);
|
||||
key = keyhash;
|
||||
keylen = 28;
|
||||
}
|
||||
|
||||
blake224_Init(&S->inner);
|
||||
memset(pad, 0x36, 64);
|
||||
for (i = 0; i < keylen; ++i) {
|
||||
pad[i] ^= key[i];
|
||||
}
|
||||
blake224_update(&S->inner, pad, 512);
|
||||
|
||||
blake224_Init(&S->outer);
|
||||
memset(pad, 0x5c, 64);
|
||||
for (i = 0; i < keylen; ++i) {
|
||||
pad[i] ^= key[i];
|
||||
}
|
||||
blake224_update(&S->outer, pad, 512);
|
||||
|
||||
memset(keyhash, 0, 32);
|
||||
}
|
||||
|
||||
// datalen = number of bits
|
||||
static void hmac_blake256_update(HMAC_BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
// update the inner BLAKE256_CTX
|
||||
blake256_update(&S->inner, data, datalen);
|
||||
}
|
||||
|
||||
// datalen = number of bytes
|
||||
void hmac_blake256_Update(HMAC_BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
hmac_blake256_update(S, data, datalen * 8);
|
||||
}
|
||||
|
||||
// datalen = number of bits
|
||||
static void hmac_blake224_update(HMAC_BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
// update the inner BLAKE256_CTX
|
||||
blake224_update(&S->inner, data, datalen);
|
||||
}
|
||||
|
||||
// datalen = number of bytes
|
||||
void hmac_blake224_Update(HMAC_BLAKE256_CTX *S, const uint8_t *data, size_t datalen) {
|
||||
hmac_blake224_update(S, data, datalen * 8);
|
||||
}
|
||||
|
||||
void hmac_blake256_Final(HMAC_BLAKE256_CTX *S, uint8_t *digest) {
|
||||
uint8_t ihash[32];
|
||||
blake256_Final(&S->inner, ihash);
|
||||
blake256_update(&S->outer, ihash, 256);
|
||||
blake256_Final(&S->outer, digest);
|
||||
memset(ihash, 0, 32);
|
||||
}
|
||||
|
||||
void hmac_blake224_Final(HMAC_BLAKE256_CTX *S, uint8_t *digest) {
|
||||
uint8_t ihash[32];
|
||||
blake224_Final(&S->inner, ihash);
|
||||
blake224_update(&S->outer, ihash, 224);
|
||||
blake224_Final(&S->outer, digest);
|
||||
memset(ihash, 0, 32);
|
||||
}
|
||||
|
||||
// keylen = number of bytes; inlen = number of bytes
|
||||
void hmac_blake256(const uint8_t *key, size_t keylen, const uint8_t *in, size_t inlen, uint8_t *out) {
|
||||
HMAC_BLAKE256_CTX S;
|
||||
hmac_blake256_Init(&S, key, keylen);
|
||||
hmac_blake256_Update(&S, in, inlen);
|
||||
hmac_blake256_Final(&S, out);
|
||||
}
|
||||
|
||||
// keylen = number of bytes; inlen = number of bytes
|
||||
void hmac_blake224(const uint8_t *key, size_t keylen, const uint8_t *in, size_t inlen, uint8_t *out) {
|
||||
HMAC_BLAKE256_CTX S;
|
||||
hmac_blake224_Init(&S, key, keylen);
|
||||
hmac_blake224_Update(&S, in, inlen);
|
||||
hmac_blake224_Final(&S, out);
|
||||
|
||||
void blake256( const uint8_t *in, size_t inlen, uint8_t *out )
|
||||
{
|
||||
BLAKE256_CTX S;
|
||||
blake256_Init( &S );
|
||||
blake256_Update( &S, in, inlen );
|
||||
blake256_Final( &S, out );
|
||||
}
|
||||
|
||||
30
blake256.h
30
blake256.h
@ -32,46 +32,22 @@
|
||||
#define __BLAKE256_H__
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stddef.h>
|
||||
|
||||
#define BLAKE224_DIGEST_LENGTH 28
|
||||
#define BLAKE256_DIGEST_LENGTH 32
|
||||
#define BLAKE256_BLOCK_LENGTH 64
|
||||
|
||||
typedef struct {
|
||||
uint32_t h[8], s[4], t[2];
|
||||
int buflen, nullt;
|
||||
size_t buflen;
|
||||
uint8_t nullt;
|
||||
uint8_t buf[64];
|
||||
} BLAKE256_CTX;
|
||||
|
||||
typedef struct {
|
||||
BLAKE256_CTX inner;
|
||||
BLAKE256_CTX outer;
|
||||
} HMAC_BLAKE256_CTX;
|
||||
|
||||
void blake256_Init(BLAKE256_CTX *);
|
||||
void blake224_Init(BLAKE256_CTX *);
|
||||
|
||||
void blake256_Update(BLAKE256_CTX *, const uint8_t *, size_t);
|
||||
void blake224_Update(BLAKE256_CTX *, const uint8_t *, size_t);
|
||||
|
||||
void blake256_Final(BLAKE256_CTX *, uint8_t *);
|
||||
void blake224_Final(BLAKE256_CTX *, uint8_t *);
|
||||
|
||||
void blake256(const uint8_t *, size_t, uint8_t *);
|
||||
void blake224(const uint8_t *, size_t, uint8_t *);
|
||||
|
||||
/* HMAC functions: */
|
||||
|
||||
void hmac_blake256_Init(HMAC_BLAKE256_CTX *, const uint8_t *, size_t);
|
||||
void hmac_blake224_Init(HMAC_BLAKE256_CTX *, const uint8_t *, size_t);
|
||||
|
||||
void hmac_blake256_Update(HMAC_BLAKE256_CTX *, const uint8_t *, size_t);
|
||||
void hmac_blake224_Update(HMAC_BLAKE256_CTX *, const uint8_t *, size_t);
|
||||
|
||||
void hmac_blake256_Final(HMAC_BLAKE256_CTX *, uint8_t *);
|
||||
void hmac_blake224_Final(HMAC_BLAKE256_CTX *, uint8_t *);
|
||||
|
||||
void hmac_blake256(const uint8_t *, size_t, const uint8_t *, size_t, uint8_t *);
|
||||
void hmac_blake224(const uint8_t *, size_t, const uint8_t *, size_t, uint8_t *);
|
||||
|
||||
#endif /* __BLAKE256_H__ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user