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authorVincent Richard <[email protected]>2013-12-29 10:02:12 +0100
committerVincent Richard <[email protected]>2013-12-29 10:02:12 +0100
commit152c6bed75598a6ca5efb7914701157270155833 (patch)
tree8faced1d75a45c819630323da256248415992ed0 /src/security/digest/sha1/sha1MessageDigest.cpp
parentMerge branch 'master' of https://github.com/kisli/vmime (diff)
downloadvmime-152c6bed75598a6ca5efb7914701157270155833.tar.gz
vmime-152c6bed75598a6ca5efb7914701157270155833.zip
Merged source and header files in directory structure. Got rid of SConstruct build.
Diffstat (limited to 'src/security/digest/sha1/sha1MessageDigest.cpp')
-rw-r--r--src/security/digest/sha1/sha1MessageDigest.cpp271
1 files changed, 0 insertions, 271 deletions
diff --git a/src/security/digest/sha1/sha1MessageDigest.cpp b/src/security/digest/sha1/sha1MessageDigest.cpp
deleted file mode 100644
index aa055af5..00000000
--- a/src/security/digest/sha1/sha1MessageDigest.cpp
+++ /dev/null
@@ -1,271 +0,0 @@
-//
-// VMime library (http://www.vmime.org)
-// Copyright (C) 2002-2013 Vincent Richard <[email protected]>
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 3 of
-// the License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License along
-// with this program; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-//
-// Linking this library statically or dynamically with other modules is making
-// a combined work based on this library. Thus, the terms and conditions of
-// the GNU General Public License cover the whole combination.
-//
-//
-// This is an implementation by Steve Reid <[email protected]>
-// 100% public domain.
-
-#include "vmime/security/digest/sha1/sha1MessageDigest.hpp"
-
-#include <cstring>
-#include <cassert>
-
-
-namespace vmime {
-namespace security {
-namespace digest {
-namespace sha1 {
-
-
-#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
-
-// blk0() and blk() perform the initial expand.
-// I got the idea of expanding during the round function from SSLeay
-#if VMIME_BYTE_ORDER_LITTLE_ENDIAN
- #define blk0(i) (block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) \
- | (rol(block->l[i], 8) & 0x00FF00FF))
-#else
- #define blk0(i) block->l[i]
-#endif
-
-#define blk(i) (block->l[i & 15] = rol(block->l[(i + 13) & 15] ^ block->l[(i + 8) & 15] \
- ^ block->l[(i + 2) & 15] ^ block->l[i & 15], 1))
-
-// (R0+R1), R2, R3, R4 are the different operations used in SHA1
-#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
-#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
-#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
-#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
-#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
-
-
-sha1MessageDigest::sha1MessageDigest()
-{
- init();
-}
-
-
-void sha1MessageDigest::reset()
-{
- init();
-}
-
-
-void sha1MessageDigest::init()
-{
- m_state[0] = 0x67452301;
- m_state[1] = 0xefcdab89;
- m_state[2] = 0x98badcfe;
- m_state[3] = 0x10325476;
- m_state[4] = 0xc3d2e1f0;
-
- m_count[0] = 0;
- m_count[1] = 0;
-}
-
-
-void sha1MessageDigest::update(const byte_t b)
-{
- update(&b, 1);
-}
-
-
-void sha1MessageDigest::update(const string& s)
-{
- update(reinterpret_cast <const byte_t*>(s.data()), s.length());
-}
-
-
-void sha1MessageDigest::update(const byte_t* buffer, const size_t offset,
- const unsigned long len)
-{
- update(buffer + offset, len);
-}
-
-
-void sha1MessageDigest::update(const byte_t* buffer, const size_t len)
-{
- unsigned int i, j;
-
- j = (m_count[0] >> 3) & 63;
-
- if ((m_count[0] += static_cast <unsigned int>(len << 3)) < static_cast <unsigned int>(len << 3))
- m_count[1]++;
-
- m_count[1] += static_cast <unsigned int>(len >> 29);
-
- if ((j + len) > 63)
- {
- memcpy(&m_buffer[j], buffer, (i = 64 - j));
-
- transform(m_state, m_buffer);
-
- for ( ; i + 63 < len ; i += 64)
- transform(m_state, &buffer[i]);
-
- j = 0;
- }
- else
- {
- i = 0;
- }
-
- std::memcpy(&m_buffer[j], &buffer[i], len - i);
-}
-
-
-void sha1MessageDigest::finalize()
-{
- unsigned int i, j;
- unsigned char finalcount[8];
-
- for (i = 0 ; i < 8 ; i++)
- {
- finalcount[i] = static_cast <unsigned char>
- ((m_count[(i >= 4 ? 0 : 1)]
- >> ((3-(i & 3)) * 8) ) & 255); // Endian independent
- }
-
- update(reinterpret_cast <const byte_t*>("\200"), 1);
-
- while ((m_count[0] & 504) != 448)
- update(reinterpret_cast <const byte_t*>("\0"), 1);
-
- update(finalcount, 8); // Should cause a transform()
-
- for (i = 0 ; i < 20 ; i++)
- {
- m_digest[i] = static_cast <unsigned char>
- ((m_state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255);
- }
-
- // Wipe variables
- i = j = 0;
-
- std::memset(m_buffer, 0, 64);
- std::memset(m_state, 0, 5 * sizeof(unsigned int));
- std::memset(m_count, 0, 2 * sizeof(unsigned int));
- std::memset(&finalcount, 0, 8);
-}
-
-
-void sha1MessageDigest::finalize(const string& s)
-{
- finalize(reinterpret_cast <const byte_t*>(s.data()), s.length());
-}
-
-
-void sha1MessageDigest::finalize(const byte_t* buffer, const size_t len)
-{
- update(buffer, len);
- finalize();
-}
-
-
-void sha1MessageDigest::finalize(const byte_t* buffer,
- const size_t offset, const size_t len)
-{
- finalize(buffer + offset, len);
-}
-
-
-/** Hash a single 512-bit block.
- * This is the core of the algorithm.
- */
-void sha1MessageDigest::transform
- (unsigned int state[5], const unsigned char buffer[64])
-{
- unsigned int a, b, c, d, e;
-
- typedef union
- {
- unsigned char c[64];
- unsigned int l[16];
- } CHAR64LONG16;
-
- assert(sizeof(unsigned int) == 4);
-
- CHAR64LONG16* block;
- static unsigned char workspace[64];
-
- block = reinterpret_cast <CHAR64LONG16*>(workspace);
- memcpy(block, buffer, 64);
-
- // Copy context->state[] to working vars
- a = state[0];
- b = state[1];
- c = state[2];
- d = state[3];
- e = state[4];
-
- // 4 rounds of 20 operations each. Loop unrolled.
- R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
- R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
- R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
- R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
- R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
- R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
- R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
- R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
- R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
- R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
- R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
- R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
- R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
- R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
- R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
- R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
- R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
- R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
- R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
- R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
-
- // Add the working vars back into context.state[]
- state[0] += a;
- state[1] += b;
- state[2] += c;
- state[3] += d;
- state[4] += e;
-
- // Wipe variables
- a = b = c = d = e = 0;
-}
-
-
-size_t sha1MessageDigest::getDigestLength() const
-{
- return 20;
-}
-
-
-const byte_t* sha1MessageDigest::getDigest() const
-{
- return m_digest;
-}
-
-
-} // sha1
-} // digest
-} // security
-} // vmime
-
-