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Mathlib: remove unused SHA256 implementation
No longer used, SDK uses the MbedTLS implementation now.
This commit is contained in:
Kawe Mazidjatari
parent
acbe43a210
commit
b1493215f1
@ -671,45 +671,6 @@ LZHAM
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// THE SOFTWARE.
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////////////////////////////////////////////////////////////////////////////
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************************************************************************************
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SHA256
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************************************************************************************
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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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************************************************************************************
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CRC32
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@ -12,8 +12,6 @@ add_sources( SOURCE_GROUP "Hash"
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"IceKey.H"
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"sha1.cpp"
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"sha1.h"
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"sha256.cpp"
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"sha256.h"
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)
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add_sources( SOURCE_GROUP "RNG"
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@ -1,133 +0,0 @@
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#include "mathlib/sha256.h"
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const uint32 SHA256::sha256_k[64] = //UL = uint32
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{0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
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0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
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0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
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0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
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0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
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0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
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0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
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0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
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0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2};
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void SHA256::transform(const uint8* message, uint64 block_nb)
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{
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uint32 w[64]{};
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uint32 wv[8]{};
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uint32 t1, t2;
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uint64 i;
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int j;
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const uint8* sub_block;
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for (i = 0; i < block_nb; i++) {
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sub_block = message + (i << 6);
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for (j = 0; j < 16; j++) {
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SHA2_PACK32(&sub_block[j << 2], &w[j]);
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}
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for (j = 16; j < 64; j++) {
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w[j] = SHA256_F4(w[j - 2]) + w[j - 7] + SHA256_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 < 64; j++) {
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t1 = wv[7] + SHA256_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
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+ sha256_k[j] + w[j];
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t2 = SHA256_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 SHA256::init()
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{
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m_h[0] = 0x6a09e667;
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m_h[1] = 0xbb67ae85;
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m_h[2] = 0x3c6ef372;
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m_h[3] = 0xa54ff53a;
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m_h[4] = 0x510e527f;
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m_h[5] = 0x9b05688c;
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m_h[6] = 0x1f83d9ab;
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m_h[7] = 0x5be0cd19;
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m_len = 0;
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m_tot_len = 0;
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}
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void SHA256::update(const uint8* message, uint64 len)
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{
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uint64 block_nb;
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uint64 new_len, rem_len, tmp_len;
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const uint8 *shifted_message;
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tmp_len = SHA224_256_BLOCK_SIZE - m_len;
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rem_len = len < tmp_len ? len : tmp_len;
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memcpy(&m_block[m_len], message, rem_len);
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if (m_len + len < SHA224_256_BLOCK_SIZE) {
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m_len += len;
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return;
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}
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new_len = len - rem_len;
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block_nb = new_len / SHA224_256_BLOCK_SIZE;
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shifted_message = message + rem_len;
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transform(m_block, 1);
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transform(shifted_message, block_nb);
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rem_len = new_len % SHA224_256_BLOCK_SIZE;
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memcpy(m_block, &shifted_message[block_nb << 6], rem_len);
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m_len = rem_len;
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m_tot_len += (block_nb + 1) << 6;
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}
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void SHA256::final(uint8* digest)
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{
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uint64 block_nb;
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uint64 pm_len;
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uint64 len_b;
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int i;
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block_nb = (1 + ((SHA224_256_BLOCK_SIZE - 9)
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< (m_len % SHA224_256_BLOCK_SIZE)));
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len_b = (m_tot_len + m_len) << 3;
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pm_len = block_nb << 6;
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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, block_nb);
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for (i = 0 ; i < 8; i++) {
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SHA2_UNPACK32(m_h[i], &digest[i << 2]);
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}
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}
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string sha256(const string& input)
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{
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uint8 digest[SHA256::DIGEST_SIZE];
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memset(digest, '\0', SHA256::DIGEST_SIZE);
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SHA256 ctx = SHA256();
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ctx.init();
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ctx.update(reinterpret_cast<const uint8*>(input.c_str()), input.length());
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ctx.final(digest);
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char buf[2*SHA256::DIGEST_SIZE+1];
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memset(buf, '\0', 2*SHA256::DIGEST_SIZE+1);
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for (uint32 i = 0; i < SHA256::DIGEST_SIZE; i++) {
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sprintf(buf + i * 2, "%02x", digest[i]);
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}
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return buf;
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}
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@ -1,52 +0,0 @@
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#ifndef SHA256_H
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#define SHA256_H
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class SHA256
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{
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protected:
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typedef unsigned char uint8;
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typedef unsigned int uint32;
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typedef unsigned long long uint64;
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static const uint32 sha256_k[];
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static const uint32 SHA224_256_BLOCK_SIZE = (512/8);
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public:
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void init();
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void update(const uint8* message, uint64 len);
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void final(uint8* digest);
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static const uint32 DIGEST_SIZE = ( 256 / 8);
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protected:
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void transform(const uint8* message, uint64 block_nb);
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uint64 m_tot_len;
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uint64 m_len;
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uint8 m_block[2*SHA224_256_BLOCK_SIZE];
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uint32 m_h[8];
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};
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string sha256(const string& input);
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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 SHA256_F1(x) (SHA2_ROTR(x, 2) ^ SHA2_ROTR(x, 13) ^ SHA2_ROTR(x, 22))
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#define SHA256_F2(x) (SHA2_ROTR(x, 6) ^ SHA2_ROTR(x, 11) ^ SHA2_ROTR(x, 25))
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#define SHA256_F3(x) (SHA2_ROTR(x, 7) ^ SHA2_ROTR(x, 18) ^ SHA2_SHFR(x, 3))
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#define SHA256_F4(x) (SHA2_ROTR(x, 17) ^ SHA2_ROTR(x, 19) ^ SHA2_SHFR(x, 10))
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#define SHA2_UNPACK32(x, str) \
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{ \
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*((str) + 3) = (uint8) ((x) ); \
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*((str) + 2) = (uint8) ((x) >> 8); \
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*((str) + 1) = (uint8) ((x) >> 16); \
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*((str) + 0) = (uint8) ((x) >> 24); \
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}
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#define SHA2_PACK32(str, x) \
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{ \
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*(x) = ((uint32) *((str) + 3) ) \
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| ((uint32) *((str) + 2) << 8) \
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| ((uint32) *((str) + 1) << 16) \
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| ((uint32) *((str) + 0) << 24); \
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}
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#endif
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