[DEV] interate internal sha 512
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algue/sha512.cpp
233
algue/sha512.cpp
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/** @file
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* @author Edouard DUPIN
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* @copyright 2011, Edouard DUPIN, all right reserved
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* @license APACHE v2.0 (see license file)
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* @license APACHE-2 (see license file)
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*
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* @license-origin BSD (original license)
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* @source http://www.zedwood.com/article/cpp-sha512-function
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* @license
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* Updated to C++, zedwood.com 2012
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* Based on Olivier Gay's version
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* See Modified BSD License below:
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*
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* FIPS 180-2 SHA-224/256/384/512 implementation
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* Issue date: 04/30/2005
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* http://www.ouah.org/ogay/sha2/
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*
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* Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch>
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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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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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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#include <etk/types.hpp>
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#include <algue/sha512.hpp>
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#include <openssl/sha.h>
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#include <algue/debug.hpp>
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std::vector<uint8_t> algue::sha512::encode(const uint8_t* _data, int32_t _len) {
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std::vector<uint8_t> out;
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out.resize(SHA512_DIGEST_LENGTH);
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SHA512(_data, _len, &out[0]);
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return out;
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static const uint32_t ALGUE_SHA384_512_BLOCK_SIZE = (1024/8);
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static const uint32_t ALGUE_DIGEST_SIZE = ( 512 / 8);
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algue::Sha512::Sha512() {
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m_block.resize(2 * ALGUE_SHA384_512_BLOCK_SIZE, 0);
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m_h[0] = 0x6a09e667f3bcc908ULL;
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m_h[1] = 0xbb67ae8584caa73bULL;
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m_h[2] = 0x3c6ef372fe94f82bULL;
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m_h[3] = 0xa54ff53a5f1d36f1ULL;
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m_h[4] = 0x510e527fade682d1ULL;
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m_h[5] = 0x9b05688c2b3e6c1fULL;
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m_h[6] = 0x1f83d9abfb41bd6bULL;
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m_h[7] = 0x5be0cd19137e2179ULL;
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m_len = 0;
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m_totLen = 0;
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}
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#define SHA2_SHFR(x, n) (x >> n)
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#define SHA2_ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n)))
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#define SHA2_ROTL(x, n) ((x << n) | (x >> ((sizeof(x) << 3) - n)))
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#define SHA2_CH(x, y, z) ((x & y) ^ (~x & z))
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#define SHA2_MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
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#define SHA512_F1(x) (SHA2_ROTR(x, 28) ^ SHA2_ROTR(x, 34) ^ SHA2_ROTR(x, 39))
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#define SHA512_F2(x) (SHA2_ROTR(x, 14) ^ SHA2_ROTR(x, 18) ^ SHA2_ROTR(x, 41))
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#define SHA512_F3(x) (SHA2_ROTR(x, 1) ^ SHA2_ROTR(x, 8) ^ SHA2_SHFR(x, 7))
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#define SHA512_F4(x) (SHA2_ROTR(x, 19) ^ SHA2_ROTR(x, 61) ^ SHA2_SHFR(x, 6))
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#define SHA2_UNPACK32(x, str) { \
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*((str) + 3) = (uint8_t) ((x) ); \
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*((str) + 2) = (uint8_t) ((x) >> 8); \
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*((str) + 1) = (uint8_t) ((x) >> 16); \
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*((str) + 0) = (uint8_t) ((x) >> 24); \
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}
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#define SHA2_UNPACK64(x, str) { \
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*((str) + 7) = (uint8_t) ((x) ); \
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*((str) + 6) = (uint8_t) ((x) >> 8); \
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*((str) + 5) = (uint8_t) ((x) >> 16); \
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*((str) + 4) = (uint8_t) ((x) >> 24); \
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*((str) + 3) = (uint8_t) ((x) >> 32); \
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*((str) + 2) = (uint8_t) ((x) >> 40); \
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*((str) + 1) = (uint8_t) ((x) >> 48); \
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*((str) + 0) = (uint8_t) ((x) >> 56); \
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}
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#define SHA2_PACK64(str, x) { \
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*(x) = ((uint64_t) *((str) + 7) ) \
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| ((uint64_t) *((str) + 6) << 8) \
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| ((uint64_t) *((str) + 5) << 16) \
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| ((uint64_t) *((str) + 4) << 24) \
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| ((uint64_t) *((str) + 3) << 32) \
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| ((uint64_t) *((str) + 2) << 40) \
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| ((uint64_t) *((str) + 1) << 48) \
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| ((uint64_t) *((str) + 0) << 56); \
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}
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const uint64_t sha512_k[80] =
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{0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
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0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
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0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
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0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
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0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
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0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
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0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
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0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
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0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
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0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
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0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
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0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
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0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
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0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
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0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
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0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
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0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
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0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
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0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
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0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
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0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
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0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
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0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
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0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
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0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
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0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
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0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
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0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
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0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
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0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
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0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
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0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
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0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
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0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
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0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
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0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
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0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
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0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
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0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
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0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL};
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void algue::Sha512::transform(const uint8_t* _data, uint32_t _blockNumber) {
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uint64_t w[80];
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uint64_t wv[8];
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uint64_t t1, t2;
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const uint8_t *sub_block;
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int i, j;
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for (i = 0; i < (int) _blockNumber; i++) {
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sub_block = _data + (i << 7);
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for (j = 0; j < 16; j++) {
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SHA2_PACK64(&sub_block[j << 3], &w[j]);
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}
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for (j = 16; j < 80; j++) {
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w[j] = SHA512_F4(w[j - 2]) + w[j - 7] + SHA512_F3(w[j - 15]) + w[j - 16];
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}
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for (j = 0; j < 8; j++) {
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wv[j] = m_h[j];
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}
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for (j = 0; j < 80; j++) {
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t1 = wv[7] + SHA512_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
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+ sha512_k[j] + w[j];
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t2 = SHA512_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
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wv[7] = wv[6];
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wv[6] = wv[5];
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wv[5] = wv[4];
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wv[4] = wv[3] + t1;
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wv[3] = wv[2];
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wv[2] = wv[1];
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wv[1] = wv[0];
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wv[0] = t1 + t2;
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}
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for (j = 0; j < 8; j++) {
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m_h[j] += wv[j];
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}
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}
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}
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void algue::Sha512::update(const uint8_t *_data, uint32_t _length) {
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if ( _data == nullptr
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|| _length == 0) {
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return;
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}
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uint32_t block_nb;
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uint32_t new_len, rem_len, tmp_len;
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const uint8_t *shifted_message;
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tmp_len = ALGUE_SHA384_512_BLOCK_SIZE - m_len;
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rem_len = _length < tmp_len ? _length : tmp_len;
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memcpy(&m_block[m_len], _data, rem_len);
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if (m_len + _length < ALGUE_SHA384_512_BLOCK_SIZE) {
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m_len += _length;
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return;
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}
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new_len = _length - rem_len;
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block_nb = new_len / ALGUE_SHA384_512_BLOCK_SIZE;
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shifted_message = _data + rem_len;
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transform(&m_block[0], 1);
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transform(shifted_message, block_nb);
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rem_len = new_len % ALGUE_SHA384_512_BLOCK_SIZE;
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memcpy(&m_block[0], &shifted_message[block_nb << 7], rem_len);
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m_len = rem_len;
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m_totLen += (block_nb + 1) << 7;
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}
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std::vector<uint8_t> algue::Sha512::finalize() {
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uint32_t block_nb;
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uint32_t pm_len;
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uint32_t len_b;
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int i;
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std::vector<uint8_t> out;
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out.resize(ALGUE_DIGEST_SIZE, 0);
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block_nb = 1 + ((ALGUE_SHA384_512_BLOCK_SIZE - 17) < (m_len % ALGUE_SHA384_512_BLOCK_SIZE));
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len_b = (m_totLen + m_len) << 3;
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pm_len = block_nb << 7;
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memset(&m_block[m_len], 0, pm_len - m_len);
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m_block[m_len] = 0x80;
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SHA2_UNPACK32(len_b, &m_block[pm_len - 4]);
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transform(&m_block[0], block_nb);
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for (i = 0 ; i < 8; i++) {
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SHA2_UNPACK64(m_h[i], &out[i << 3]);
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}
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return out;
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}
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std::vector<uint8_t> algue::sha512::encode(const uint8_t* _data, int32_t _len) {
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algue::Sha512 ctx;
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ctx.update(_data, _len);
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return ctx.finalize();
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}
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std::string algue::stringConvert(std::vector<uint8_t> _data) {
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char buf[2*_data.size()+1];
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buf[2*_data.size()] = 0;
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for (int i = 0; i < _data.size(); i++)
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sprintf(buf+i*2, "%02x", _data[i]);
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return std::string(buf);
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}
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@ -8,6 +8,22 @@
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#include <etk/types.hpp>
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namespace algue {
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class Sha512 {
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public:
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Sha512();
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void update(const uint8_t* _data, uint32_t _len);
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/**
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* @brief get digest value
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* @return the digest sha512 value
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*/
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std::vector<uint8_t> finalize();
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protected:
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void transform(const uint8_t* _data, uint32_t _blockNb);
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uint32_t m_totLen;
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uint32_t m_len;
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std::vector<uint8_t> m_block;
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uint64_t m_h[8];
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};
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namespace sha512 {
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std::vector<uint8_t> encode(const uint8_t* _data, int32_t _len);
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inline std::vector<uint8_t> encode(const std::vector<uint8_t>& _data) {
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@ -17,4 +33,5 @@ namespace algue {
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return algue::sha512::encode(reinterpret_cast<const uint8_t*>(&_data[0]), _data.size());
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}
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}
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std::string stringConvert(std::vector<uint8_t> _data);
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}
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