aboutsummaryrefslogtreecommitdiffstats
path: root/include/TinySHA1.hpp
diff options
context:
space:
mode:
authoripknHama <ipknhama@gmail.com>2016-09-21 23:11:06 +0900
committeripknHama <ipknhama@gmail.com>2016-09-21 23:11:06 +0900
commit3081e4e1a82a4efd8feff68850c4cc04af230cd7 (patch)
tree3ad16ef2e940abd2d47c4ac3ca224365387b7f37 /include/TinySHA1.hpp
parent8b04940d2f28290451db439ad29155a0b8771ba3 (diff)
downloadcrow-3081e4e1a82a4efd8feff68850c4cc04af230cd7.tar.gz
crow-3081e4e1a82a4efd8feff68850c4cc04af230cd7.zip
Cleanup include folder into crow subfolder
- only crow.h is exposed now
Diffstat (limited to 'include/TinySHA1.hpp')
-rw-r--r--include/TinySHA1.hpp196
1 files changed, 0 insertions, 196 deletions
diff --git a/include/TinySHA1.hpp b/include/TinySHA1.hpp
deleted file mode 100644
index 70af046..0000000
--- a/include/TinySHA1.hpp
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- *
- * TinySHA1 - a header only implementation of the SHA1 algorithm in C++. Based
- * on the implementation in boost::uuid::details.
- *
- * SHA1 Wikipedia Page: http://en.wikipedia.org/wiki/SHA-1
- *
- * Copyright (c) 2012-22 SAURAV MOHAPATRA <mohaps@gmail.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-#ifndef _TINY_SHA1_HPP_
-#define _TINY_SHA1_HPP_
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <stdint.h>
-namespace sha1
-{
- class SHA1
- {
- public:
- typedef uint32_t digest32_t[5];
- typedef uint8_t digest8_t[20];
- inline static uint32_t LeftRotate(uint32_t value, size_t count) {
- return (value << count) ^ (value >> (32-count));
- }
- SHA1(){ reset(); }
- virtual ~SHA1() {}
- SHA1(const SHA1& s) { *this = s; }
- const SHA1& operator = (const SHA1& s) {
- memcpy(m_digest, s.m_digest, 5 * sizeof(uint32_t));
- memcpy(m_block, s.m_block, 64);
- m_blockByteIndex = s.m_blockByteIndex;
- m_byteCount = s.m_byteCount;
- return *this;
- }
- SHA1& reset() {
- m_digest[0] = 0x67452301;
- m_digest[1] = 0xEFCDAB89;
- m_digest[2] = 0x98BADCFE;
- m_digest[3] = 0x10325476;
- m_digest[4] = 0xC3D2E1F0;
- m_blockByteIndex = 0;
- m_byteCount = 0;
- return *this;
- }
- SHA1& processByte(uint8_t octet) {
- this->m_block[this->m_blockByteIndex++] = octet;
- ++this->m_byteCount;
- if(m_blockByteIndex == 64) {
- this->m_blockByteIndex = 0;
- processBlock();
- }
- return *this;
- }
- SHA1& processBlock(const void* const start, const void* const end) {
- const uint8_t* begin = static_cast<const uint8_t*>(start);
- const uint8_t* finish = static_cast<const uint8_t*>(end);
- while(begin != finish) {
- processByte(*begin);
- begin++;
- }
- return *this;
- }
- SHA1& processBytes(const void* const data, size_t len) {
- const uint8_t* block = static_cast<const uint8_t*>(data);
- processBlock(block, block + len);
- return *this;
- }
- const uint32_t* getDigest(digest32_t digest) {
- size_t bitCount = this->m_byteCount * 8;
- processByte(0x80);
- if (this->m_blockByteIndex > 56) {
- while (m_blockByteIndex != 0) {
- processByte(0);
- }
- while (m_blockByteIndex < 56) {
- processByte(0);
- }
- } else {
- while (m_blockByteIndex < 56) {
- processByte(0);
- }
- }
- processByte(0);
- processByte(0);
- processByte(0);
- processByte(0);
- processByte( static_cast<unsigned char>((bitCount>>24) & 0xFF));
- processByte( static_cast<unsigned char>((bitCount>>16) & 0xFF));
- processByte( static_cast<unsigned char>((bitCount>>8 ) & 0xFF));
- processByte( static_cast<unsigned char>((bitCount) & 0xFF));
-
- memcpy(digest, m_digest, 5 * sizeof(uint32_t));
- return digest;
- }
- const uint8_t* getDigestBytes(digest8_t digest) {
- digest32_t d32;
- getDigest(d32);
- size_t di = 0;
- digest[di++] = ((d32[0] >> 24) & 0xFF);
- digest[di++] = ((d32[0] >> 16) & 0xFF);
- digest[di++] = ((d32[0] >> 8) & 0xFF);
- digest[di++] = ((d32[0]) & 0xFF);
-
- digest[di++] = ((d32[1] >> 24) & 0xFF);
- digest[di++] = ((d32[1] >> 16) & 0xFF);
- digest[di++] = ((d32[1] >> 8) & 0xFF);
- digest[di++] = ((d32[1]) & 0xFF);
-
- digest[di++] = ((d32[2] >> 24) & 0xFF);
- digest[di++] = ((d32[2] >> 16) & 0xFF);
- digest[di++] = ((d32[2] >> 8) & 0xFF);
- digest[di++] = ((d32[2]) & 0xFF);
-
- digest[di++] = ((d32[3] >> 24) & 0xFF);
- digest[di++] = ((d32[3] >> 16) & 0xFF);
- digest[di++] = ((d32[3] >> 8) & 0xFF);
- digest[di++] = ((d32[3]) & 0xFF);
-
- digest[di++] = ((d32[4] >> 24) & 0xFF);
- digest[di++] = ((d32[4] >> 16) & 0xFF);
- digest[di++] = ((d32[4] >> 8) & 0xFF);
- digest[di++] = ((d32[4]) & 0xFF);
- return digest;
- }
-
- protected:
- void processBlock() {
- uint32_t w[80];
- for (size_t i = 0; i < 16; i++) {
- w[i] = (m_block[i*4 + 0] << 24);
- w[i] |= (m_block[i*4 + 1] << 16);
- w[i] |= (m_block[i*4 + 2] << 8);
- w[i] |= (m_block[i*4 + 3]);
- }
- for (size_t i = 16; i < 80; i++) {
- w[i] = LeftRotate((w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]), 1);
- }
-
- uint32_t a = m_digest[0];
- uint32_t b = m_digest[1];
- uint32_t c = m_digest[2];
- uint32_t d = m_digest[3];
- uint32_t e = m_digest[4];
-
- for (std::size_t i=0; i<80; ++i) {
- uint32_t f = 0;
- uint32_t k = 0;
-
- if (i<20) {
- f = (b & c) | (~b & d);
- k = 0x5A827999;
- } else if (i<40) {
- f = b ^ c ^ d;
- k = 0x6ED9EBA1;
- } else if (i<60) {
- f = (b & c) | (b & d) | (c & d);
- k = 0x8F1BBCDC;
- } else {
- f = b ^ c ^ d;
- k = 0xCA62C1D6;
- }
- uint32_t temp = LeftRotate(a, 5) + f + e + k + w[i];
- e = d;
- d = c;
- c = LeftRotate(b, 30);
- b = a;
- a = temp;
- }
-
- m_digest[0] += a;
- m_digest[1] += b;
- m_digest[2] += c;
- m_digest[3] += d;
- m_digest[4] += e;
- }
- private:
- digest32_t m_digest;
- uint8_t m_block[64];
- size_t m_blockByteIndex;
- size_t m_byteCount;
- };
-}
-#endif