mirror of
https://github.com/reactos/reactos.git
synced 2024-08-28 22:28:36 +00:00
419 lines
11 KiB
C++
419 lines
11 KiB
C++
// MD5.CPP - RSA Data Security, Inc., MD5 message-digest algorithm
|
|
|
|
/*
|
|
Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
|
|
rights reserved.
|
|
|
|
License to copy and use this software is granted provided that it
|
|
is identified as the "RSA Data Security, Inc. MD5 Message-Digest
|
|
Algorithm" in all material mentioning or referencing this software
|
|
or this function.
|
|
|
|
License is also granted to make and use derivative works provided
|
|
that such works are identified as "derived from the RSA Data
|
|
Security, Inc. MD5 Message-Digest Algorithm" in all material
|
|
mentioning or referencing the derived work.
|
|
|
|
RSA Data Security, Inc. makes no representations concerning either
|
|
the merchantability of this software or the suitability of this
|
|
software for any particular purpose. It is provided "as is"
|
|
without express or implied warranty of any kind.
|
|
|
|
These notices must be retained in any copies of any part of this
|
|
documentation and/or software.
|
|
*/
|
|
|
|
//#include <assert.h>
|
|
#include <memory.h>
|
|
#include <ctype.h>
|
|
#include <vector>
|
|
#include "MD5.h"
|
|
|
|
using std::string;
|
|
using std::vector;
|
|
|
|
// Constants for MD5Transform routine.
|
|
#define S11 7
|
|
#define S12 12
|
|
#define S13 17
|
|
#define S14 22
|
|
#define S21 5
|
|
#define S22 9
|
|
#define S23 14
|
|
#define S24 20
|
|
#define S31 4
|
|
#define S32 11
|
|
#define S33 16
|
|
#define S34 23
|
|
#define S41 6
|
|
#define S42 10
|
|
#define S43 15
|
|
#define S44 21
|
|
|
|
static void MD5Transform ( UINT4 [4], const uchar [64] );
|
|
static void Encode ( unsigned char *, UINT4 *, unsigned int );
|
|
static void Decode ( UINT4 *, const uchar *, unsigned int );
|
|
|
|
static unsigned char PADDING[64] =
|
|
{
|
|
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,
|
|
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
|
|
};
|
|
|
|
// F, G, H and I are basic MD5 functions.
|
|
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
|
|
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
|
|
#define H(x, y, z) ((x) ^ (y) ^ (z))
|
|
#define I(x, y, z) ((y) ^ ((x) | (~z)))
|
|
|
|
// ROTATE_LEFT rotates x left n bits.
|
|
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
|
|
|
|
// FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
|
|
// Rotation is separate from addition to prevent recomputation.
|
|
#define FF(a, b, c, d, x, s, ac) { \
|
|
(a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
|
|
(a) = ROTATE_LEFT ((a), (s)); \
|
|
(a) += (b); \
|
|
}
|
|
#define GG(a, b, c, d, x, s, ac) { \
|
|
(a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
|
|
(a) = ROTATE_LEFT ((a), (s)); \
|
|
(a) += (b); \
|
|
}
|
|
#define HH(a, b, c, d, x, s, ac) { \
|
|
(a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
|
|
(a) = ROTATE_LEFT ((a), (s)); \
|
|
(a) += (b); \
|
|
}
|
|
#define II(a, b, c, d, x, s, ac) { \
|
|
(a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
|
|
(a) = ROTATE_LEFT ((a), (s)); \
|
|
(a) += (b); \
|
|
}
|
|
|
|
// MD5 initialization. Begins an MD5 operation, writing a new context.
|
|
void MD5Init (
|
|
MD5_CTX *context ) // context
|
|
{
|
|
context->count[0] = context->count[1] = 0;
|
|
// Load magic initialization constants.
|
|
context->state[0] = 0x67452301;
|
|
context->state[1] = 0xefcdab89;
|
|
context->state[2] = 0x98badcfe;
|
|
context->state[3] = 0x10325476;
|
|
}
|
|
|
|
// MD5 block update operation. Continues an MD5 message-digest
|
|
// operation, processing another message block, and updating the
|
|
// context.
|
|
void MD5Update (
|
|
MD5_CTX *context, // context
|
|
const char *input_, // input block
|
|
unsigned int inputLen ) // length of input block
|
|
{
|
|
unsigned int i, index, partLen;
|
|
const uchar* input = (const uchar*)input_;
|
|
|
|
// Compute number of bytes mod 64
|
|
index = (unsigned int)((context->count[0] >> 3) & 0x3F);
|
|
|
|
// Update number of bits
|
|
if ((context->count[0] += ((UINT4)inputLen << 3))
|
|
< ((UINT4)inputLen << 3))
|
|
context->count[1]++;
|
|
context->count[1] += ((UINT4)inputLen >> 29);
|
|
|
|
partLen = 64 - index;
|
|
|
|
// Transform as many times as possible.
|
|
if (inputLen >= partLen)
|
|
{
|
|
memcpy
|
|
((POINTER)&context->buffer[index], (POINTER)input, partLen);
|
|
MD5Transform (context->state, context->buffer);
|
|
|
|
for (i = partLen; i + 63 < inputLen; i += 64)
|
|
MD5Transform (context->state, &input[i]);
|
|
|
|
index = 0;
|
|
}
|
|
else
|
|
i = 0;
|
|
|
|
// Buffer remaining input
|
|
memcpy
|
|
((POINTER)&context->buffer[index], (POINTER)&input[i],
|
|
inputLen-i);
|
|
}
|
|
|
|
// MD5 finalization. Ends an MD5 message-digest operation, writing the
|
|
// the message digest and zeroizing the context.
|
|
void MD5Final (
|
|
unsigned char digest[16], // message digest
|
|
MD5_CTX *context ) // context
|
|
{
|
|
uchar bits[8];
|
|
unsigned int index, padLen;
|
|
|
|
// Save number of bits
|
|
Encode (bits, context->count, 8);
|
|
|
|
// Pad out to 56 mod 64.
|
|
index = (unsigned int)((context->count[0] >> 3) & 0x3f);
|
|
padLen = (index < 56) ? (56 - index) : (120 - index);
|
|
MD5Update (context, (const char*)PADDING, padLen);
|
|
|
|
// Append length (before padding)
|
|
MD5Update (context, (const char*)bits, 8);
|
|
|
|
// Store state in digest
|
|
Encode (digest, context->state, 16);
|
|
|
|
// Zeroize sensitive information.
|
|
memset ((POINTER)context, 0, sizeof (*context));
|
|
}
|
|
|
|
// MD5 basic transformation. Transforms state based on block.
|
|
static void MD5Transform (
|
|
UINT4 state[4],
|
|
const uchar block[64] )
|
|
{
|
|
UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
|
|
|
|
Decode (x, block, 64);
|
|
|
|
// Round 1
|
|
FF (a, b, c, d, x[ 0], S11, 0xd76aa478); // 1
|
|
FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); // 2
|
|
FF (c, d, a, b, x[ 2], S13, 0x242070db); // 3
|
|
FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); // 4
|
|
FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); // 5
|
|
FF (d, a, b, c, x[ 5], S12, 0x4787c62a); // 6
|
|
FF (c, d, a, b, x[ 6], S13, 0xa8304613); // 7
|
|
FF (b, c, d, a, x[ 7], S14, 0xfd469501); // 8
|
|
FF (a, b, c, d, x[ 8], S11, 0x698098d8); // 9
|
|
FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); // 10
|
|
FF (c, d, a, b, x[10], S13, 0xffff5bb1); // 11
|
|
FF (b, c, d, a, x[11], S14, 0x895cd7be); // 12
|
|
FF (a, b, c, d, x[12], S11, 0x6b901122); // 13
|
|
FF (d, a, b, c, x[13], S12, 0xfd987193); // 14
|
|
FF (c, d, a, b, x[14], S13, 0xa679438e); // 15
|
|
FF (b, c, d, a, x[15], S14, 0x49b40821); // 16
|
|
|
|
// Round 2
|
|
GG (a, b, c, d, x[ 1], S21, 0xf61e2562); // 17
|
|
GG (d, a, b, c, x[ 6], S22, 0xc040b340); // 18
|
|
GG (c, d, a, b, x[11], S23, 0x265e5a51); // 19
|
|
GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); // 20
|
|
GG (a, b, c, d, x[ 5], S21, 0xd62f105d); // 21
|
|
GG (d, a, b, c, x[10], S22, 0x2441453); // 22
|
|
GG (c, d, a, b, x[15], S23, 0xd8a1e681); // 23
|
|
GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); // 24
|
|
GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); // 25
|
|
GG (d, a, b, c, x[14], S22, 0xc33707d6); // 26
|
|
GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); // 27
|
|
GG (b, c, d, a, x[ 8], S24, 0x455a14ed); // 28
|
|
GG (a, b, c, d, x[13], S21, 0xa9e3e905); // 29
|
|
GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); // 30
|
|
GG (c, d, a, b, x[ 7], S23, 0x676f02d9); // 31
|
|
GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); // 32
|
|
|
|
// Round 3
|
|
HH (a, b, c, d, x[ 5], S31, 0xfffa3942); // 33
|
|
HH (d, a, b, c, x[ 8], S32, 0x8771f681); // 34
|
|
HH (c, d, a, b, x[11], S33, 0x6d9d6122); // 35
|
|
HH (b, c, d, a, x[14], S34, 0xfde5380c); // 36
|
|
HH (a, b, c, d, x[ 1], S31, 0xa4beea44); // 37
|
|
HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); // 38
|
|
HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); // 39
|
|
HH (b, c, d, a, x[10], S34, 0xbebfbc70); // 40
|
|
HH (a, b, c, d, x[13], S31, 0x289b7ec6); // 41
|
|
HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); // 42
|
|
HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); // 43
|
|
HH (b, c, d, a, x[ 6], S34, 0x4881d05); // 44
|
|
HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); // 45
|
|
HH (d, a, b, c, x[12], S32, 0xe6db99e5); // 46
|
|
HH (c, d, a, b, x[15], S33, 0x1fa27cf8); // 47
|
|
HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); // 48
|
|
|
|
// Round 4
|
|
II (a, b, c, d, x[ 0], S41, 0xf4292244); // 49
|
|
II (d, a, b, c, x[ 7], S42, 0x432aff97); // 50
|
|
II (c, d, a, b, x[14], S43, 0xab9423a7); // 51
|
|
II (b, c, d, a, x[ 5], S44, 0xfc93a039); // 52
|
|
II (a, b, c, d, x[12], S41, 0x655b59c3); // 53
|
|
II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); // 54
|
|
II (c, d, a, b, x[10], S43, 0xffeff47d); // 55
|
|
II (b, c, d, a, x[ 1], S44, 0x85845dd1); // 56
|
|
II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); // 57
|
|
II (d, a, b, c, x[15], S42, 0xfe2ce6e0); // 58
|
|
II (c, d, a, b, x[ 6], S43, 0xa3014314); // 59
|
|
II (b, c, d, a, x[13], S44, 0x4e0811a1); // 60
|
|
II (a, b, c, d, x[ 4], S41, 0xf7537e82); // 61
|
|
II (d, a, b, c, x[11], S42, 0xbd3af235); // 62
|
|
II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); // 63
|
|
II (b, c, d, a, x[ 9], S44, 0xeb86d391); // 64
|
|
|
|
state[0] += a;
|
|
state[1] += b;
|
|
state[2] += c;
|
|
state[3] += d;
|
|
|
|
// Zeroize sensitive information.
|
|
memset ((POINTER)x, 0, sizeof (x));
|
|
}
|
|
|
|
// Encodes input (UINT4) into output (unsigned char). Assumes len is
|
|
// a multiple of 4.
|
|
static void Encode (
|
|
unsigned char *output,
|
|
UINT4 *input,
|
|
unsigned int len )
|
|
{
|
|
unsigned int i, j;
|
|
|
|
for (i = 0, j = 0; j < len; i++, j += 4) {
|
|
output[j] = (unsigned char)(input[i] & 0xff);
|
|
output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
|
|
output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
|
|
output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
|
|
}
|
|
}
|
|
|
|
// Decodes input (unsigned char) into output (UINT4). Assumes len is
|
|
// a multiple of 4.
|
|
static void Decode (
|
|
UINT4 *output,
|
|
const uchar *input,
|
|
unsigned int len )
|
|
{
|
|
unsigned int i, j;
|
|
|
|
for (i = 0, j = 0; j < len; i++, j += 4)
|
|
output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
|
|
(((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
|
|
}
|
|
|
|
void digest2ascii ( char *ascii, const unsigned char *digest )
|
|
{
|
|
int i;
|
|
static char* table = "0123456789abcdef";
|
|
for ( i = 0; i < 16; i++ )
|
|
{
|
|
*ascii++ = table[(*digest)>>4];
|
|
*ascii++ = table[(*digest++)%16];
|
|
}
|
|
*ascii++ = 0;
|
|
}
|
|
|
|
void ascii2digest ( unsigned char *digest, const char *ascii )
|
|
{
|
|
int i;
|
|
#define CONV(c) (unsigned char)( (toupper(c)>='A') ? (toupper(c)+10-'A') : ((c)-'0') )
|
|
#define MAKECHAR(a,b) ((CONV(a)%16)<<4)|(CONV(b)%16)
|
|
for ( i = 0; i < 16; i++ )
|
|
{
|
|
*digest++ = MAKECHAR(ascii[0],ascii[1]);
|
|
ascii += 2;
|
|
}
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
MD5::MD5()
|
|
{
|
|
Init();
|
|
}
|
|
|
|
void MD5::Init()
|
|
{
|
|
MD5Init(&_ctx);
|
|
}
|
|
|
|
void MD5::Update ( const string& s )
|
|
{
|
|
MD5Update ( &_ctx, s.c_str(), s.size() );
|
|
}
|
|
|
|
string MD5::Final ( char* digest )
|
|
{
|
|
vector<uchar> v;
|
|
v.resize(16);
|
|
MD5Final ( &v[0], &_ctx );
|
|
if ( digest )
|
|
memmove ( digest, &v[0], 16 );
|
|
string s;
|
|
static char* tohex = "0123456789abcdef";
|
|
for ( int i = 0; i < 16; i++ )
|
|
{
|
|
uchar c = v[i];
|
|
s += tohex[ (c>>4) & 0xF ];
|
|
s += tohex[ c & 0xF ];
|
|
}
|
|
return s;
|
|
}
|
|
|
|
string MD5Hex ( const string& s )
|
|
{
|
|
MD5 md5;
|
|
md5.Update ( s );
|
|
return md5.Final();
|
|
}
|
|
|
|
string MD5Bin ( const string& s )
|
|
{
|
|
MD5 md5;
|
|
md5.Update ( s );
|
|
char digest[16];
|
|
md5.Final ( digest );
|
|
return string ( digest, 16 );
|
|
}
|
|
|
|
string HMAC_MD5 ( const string& key, const string& text, char* out_bin )
|
|
{
|
|
MD5 md5;
|
|
char k_ipad[65]; // inner padding - key XORd with ipad
|
|
char k_opad[65]; // outer padding - key XORd with opad
|
|
string tmp;
|
|
char digest[16];
|
|
int i;
|
|
// if key is longer than 64 bytes reset it to key=MD5(key)
|
|
if ( key.length() > 64 )
|
|
{
|
|
md5.Init();
|
|
md5.Update ( key );
|
|
md5.Final ( digest );
|
|
tmp = string ( digest, 16 );
|
|
}
|
|
else
|
|
tmp = key;
|
|
|
|
// start out by storing key in pads
|
|
memset ( k_ipad, 0, sizeof(k_ipad) );
|
|
memset ( k_opad, 0, sizeof(k_opad) );
|
|
memcpy ( k_ipad, tmp.c_str(), tmp.length() );
|
|
memcpy ( k_opad, tmp.c_str(), tmp.length() );
|
|
|
|
// XOR key with ipad and opad values
|
|
for ( i=0; i<64; i++ )
|
|
{
|
|
k_ipad[i] ^= 0x36;
|
|
k_opad[i] ^= 0x5c;
|
|
}
|
|
|
|
// "inner" MD5
|
|
md5.Init();
|
|
md5.Update(k_ipad);
|
|
md5.Update(text);
|
|
md5.Final ( digest );
|
|
|
|
// "outer" MD5
|
|
md5.Init();
|
|
md5.Update(k_opad);
|
|
md5.Update(string(digest,16));
|
|
return md5.Final(out_bin);
|
|
}
|
|
#endif//__cplusplus
|