开源就是好,由于要在windows下对crypt_md5加密的字符进行处理,在google,只好自立更生了,有需要的人可以一试.
以下为cryptmd5.cpp
// cryptmd5.cpp : Defines the entry point for the DLL application.
//
#include "stdafx.h"
#include "cryptmd5.h"
#include
BOOL APIENTRY DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
/* 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(crypto_uint4[4], const unsigned char[64]);
#ifndef WORDS_BIGENDIAN
# define Encode MD5_memcpy
# define Decode MD5_memcpy
#else
static void Encode(unsigned char *, const crypto_uint4 *, unsigned int);
static void Decode(crypto_uint4 *, const unsigned char *, unsigned int);
#endif
#define MD5_memcpy memcpy
#define MD5_memset memset
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) + (crypto_uint4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define GG(a, b, c, d, x, s, ac) { \
(a) += G ((b), (c), (d)) + (x) + (crypto_uint4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define HH(a, b, c, d, x, s, ac) { \
(a) += H ((b), (c), (d)) + (x) + (crypto_uint4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define II(a, b, c, d, x, s, ac) { \
(a) += I ((b), (c), (d)) + (x) + (crypto_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->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, const unsigned char *input,
unsigned int inputLen)
{
unsigned int i, index, partLen;
/* Compute number of bytes mod 64 */
index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
/* Update number of bits */
if ((context->count[0] += ((crypto_uint4) inputLen << 3))
< ((crypto_uint4) inputLen << 3))
context->count[1]++;
context->count[1] += ((crypto_uint4) inputLen >> 29);
partLen = 64 - index;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
MD5_memcpy
((void *) &context->buffer[index], (const void *) 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 */
MD5_memcpy
((void *) &context->buffer[index], (const void *) &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], MD5_CTX * context)
{
unsigned char 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, PADDING, padLen);
/* Append length (before padding) */
MD5Update(context, bits, 8);
if (digest != NULL) { /* Bill Simpson's padding */
/* store state in digest */
Encode(digest, context->state, 16);
/* Zeroize sensitive information.
*/
MD5_memset((void *) context, 0, sizeof (*context));
}
}
/* MD5 basic transformation. Transforms state based on block.
*/
static void MD5Transform(crypto_uint4 state[4],
const unsigned char block[64])
{
crypto_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.
*/
MD5_memset((void *) x, 0, sizeof x);
}
#ifdef WORDS_BIGENDIAN
/* Encodes input (crypto_uint4) into output (unsigned char). Assumes len is
a multiple of 4.
*/
static void Encode(unsigned char *output, const crypto_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 (crypto_uint4). Assumes len is
a multiple of 4.
*/
static void Decode(crypto_uint4 * output, const unsigned char *input,
unsigned int len)
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
output[i] =
((crypto_uint4) input[j]) | (((crypto_uint4) input[j + 1]) <<
8) | (((crypto_uint4)
input[j +
2]) << 16) |
(((crypto_uint4) input[j + 3]) << 24);
}
#endif
static unsigned char itoa64[] = /* 0 ... 63 => ascii - 64 */
"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
static void md5to64(char *s, unsigned long v, int n)
{
while (--n >= 0) {
*s++ = itoa64[v & 0x3f];
v >>= 6;
}
}
/*
* MD5 hash a password
*
* Use MD5 for what it is best at...
*
* If salt begins with $ then it is assumed to be on the form
* $magic$salt$...
* If not the normal UNIX magic $1$ is used.
*/
CRYPTMD5_API char *crypt_md5(const char *pw, const char *salt)
{
const char *magic = "$1$";
int magiclen = 3;
static char passwd[120], *p;
static const char *sp, *ep;
unsigned char final[16];
int sl, pl, i, j;
MD5_CTX ctx, ctx1;
unsigned long l;
if (*salt == '$') {
magic = salt++;
while(*salt && *salt != '$')
salt++;
if (*salt == '$') {
salt++;
magiclen = salt - magic;
} else {
salt = magic;
magic = "$1$";
}
}
/* Refine the Salt first */
sp = salt;
/* It stops at the first '$', max 8 chars */
for (ep = sp; *ep && *ep != '$' && ep < (sp + 8); ep++)
continue;
/* get the length of the true salt */
sl = ep - sp;
MD5Init(&ctx);
/* The password first, since that is what is most unknown */
MD5Update(&ctx, (unsigned const char *) pw, strlen(pw));
/* Then our magic string */
MD5Update(&ctx, (unsigned const char *) magic, magiclen);
/* Then the raw salt */
MD5Update(&ctx, (unsigned const char *) sp, sl);
/* Then just as many characters of the MD5(pw,salt,pw) */
MD5Init(&ctx1);
MD5Update(&ctx1, (unsigned const char *) pw, strlen(pw));
MD5Update(&ctx1, (unsigned const char *) sp, sl);
MD5Update(&ctx1, (unsigned const char *) pw, strlen(pw));
MD5Final(final, &ctx1);
for (pl = strlen(pw); pl > 0; pl -= 16)
MD5Update(&ctx, (unsigned const char *) final, pl > 16 ? 16 : pl);
/* Don't leave anything around in vm they could use. */
memset(final, 0, sizeof final);
/* Then something really weird... */
for (j = 0, i = strlen(pw); i; i >>= 1)
if (i & 1)
MD5Update(&ctx, (unsigned const char *) final + j, 1);
else
MD5Update(&ctx, (unsigned const char *) pw + j, 1);
/* Now make the output string */
memset(passwd, 0, sizeof(passwd));
strncat(passwd, magic, magiclen);
strncat(passwd, sp, sl);
strcat(passwd, "$");
MD5Final(final, &ctx);
/*
* and now, just to make sure things don't run too fast
* On a 60 Mhz Pentium this takes 34 msec, so you would
* need 30 seconds to build a 1000 entry dictionary...
*/
for (i = 0; i < 1000; i++) {
MD5Init(&ctx1);
if (i & 1)
MD5Update(&ctx1, (unsigned const char *) pw, strlen(pw));
else
MD5Update(&ctx1, (unsigned const char *) final, 16);
if (i % 3)
MD5Update(&ctx1, (unsigned const char *) sp, sl);
if (i % 7)
MD5Update(&ctx1, (unsigned const char *) pw, strlen(pw));
if (i & 1)
MD5Update(&ctx1, (unsigned const char *) final, 16);
else
MD5Update(&ctx1, (unsigned const char *) pw, strlen(pw));
MD5Final(final, &ctx1);
}
p = passwd + strlen(passwd);
l = (final[0] << 16) | (final[6] << 8) | final[12];
md5to64(p, l, 4);
p += 4;
l = (final[1] << 16) | (final[7] << 8) | final[13];
md5to64(p, l, 4);
p += 4;
l = (final[2] << 16) | (final[8] << 8) | final[14];
md5to64(p, l, 4);
p += 4;
l = (final[3] << 16) | (final[9] << 8) | final[15];
md5to64(p, l, 4);
p += 4;
l = (final[4] << 16) | (final[10] << 8) | final[5];
md5to64(p, l, 4);
p += 4;
l = final[11];
md5to64(p, l, 2);
p += 2;
*p = '\0';
/* Don't leave anything around in vm they could use. */
memset(final, 0, sizeof final);
return passwd;
}
以下为cryptmd5.h
// The following ifdef block is the standard way of creating macros which make exporting
// from a DLL simpler. All files within this DLL are compiled with the CRYPTMD5_EXPORTS
// symbol defined on the command line. this symbol should not be defined on any project
// that uses this DLL. This way any other project whose source files include this file see
// CRYPTMD5_API functions as being imported from a DLL, wheras this DLL sees symbols
// defined with this macro as being exported.
#ifdef CRYPTMD5_EXPORTS
#define CRYPTMD5_API extern "C" __declspec(dllexport)
#else
#define CRYPTMD5_API extern "C" __declspec(dllimport)
#endif
#ifndef __CRYPTO_H__
#define __CRYPTO_H__ 1
typedef int crypto_int4;
typedef unsigned int crypto_uint4;
#endif
#ifndef __CRYPTO_MD5_H__
#define __CRYPTO_MD5_H__ 1
/* MD5 context. */
typedef struct MD5_CTX {
crypto_uint4 state[4]; /* state (ABCD) */
crypto_uint4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
unsigned char buffer[64]; /* input buffer */
} MD5_CTX;
void MD5Init(MD5_CTX * context);
void MD5Update(MD5_CTX * context, const unsigned char * data,
unsigned int len);
void MD5Final(unsigned char digest[16], MD5_CTX *context);
CRYPTMD5_API char *crypt_md5(const char *pw, const char *salt);
#endif
