mirror of
https://github.com/j0urney1/RemoteSamDecrypt
synced 2026-06-21 13:54:05 +00:00
j0urney1
185 lines
6.1 KiB
C++
185 lines
6.1 KiB
C++
#include <Windows.h>
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#ifndef _MD5_H
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#define _MD5_H
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typedef struct
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{
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ULONG i[2];
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ULONG buf[4];
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UCHAR in[64];
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UCHAR digest[16];
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}MD5_CTX;
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VOID MD5Init(
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_Out_ MD5_CTX *Context
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);
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VOID MD5Update(
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_Inout_ MD5_CTX *Context,
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_In_reads_bytes_(Length) UCHAR *Input,
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_In_ ULONG Length
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);
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VOID MD5Final(
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_Inout_ MD5_CTX *Context
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);
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#endif
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void MD5Transform(ULONG buf[4], ULONG in[16]);
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void MD5Init(_Out_ MD5_CTX*Context)
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{
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Context->buf[0] = 0x67452301;
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Context->buf[1] = 0xefcdab89;
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Context->buf[2] = 0x98badcfe;
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Context->buf[3] = 0x10325476;
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Context->i[0] = 0;
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Context->i[1] = 0;
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}
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VOID MD5Update( _Inout_ MD5_CTX *Context,BYTE *Input,_In_ ULONG Length)
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{
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ULONG t;
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t = Context->i[0];
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if ((Context->i[0] = t + ((ULONG)Length << 3)) < t)
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Context->i[1]++; /* Carry from low to high */
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Context->i[1] += Length >> 29;
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t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
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if (t) {
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unsigned char *p = (unsigned char *)Context->in + t;
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t = 64 - t;
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if (Length < t) {
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memcpy(p, Input, Length);
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return;
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}
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memcpy(p, Input, t);
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MD5Transform(Context->buf, (ULONG *)Context->in);
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Input += t;
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Length -= t;
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}
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while (Length >= 64) {
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memcpy(Context->in, Input, 64);
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MD5Transform(Context->buf, (ULONG *)Context->in);
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Input += 64;
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Length -= 64;
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}
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memcpy(Context->in, Input, Length);
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}
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VOID MD5Final(_Inout_ MD5_CTX *Context)
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{
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unsigned int count;
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unsigned char *p;
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count = (Context->i[0] >> 3) & 0x3F;
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p = Context->in + count;
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* p++ = 0x80;
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count = 64 - 1 - count;
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if (count < 8) {
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/* Two lots of padding: Pad the first block to 64 bytes */
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memset(p, 0, count);
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MD5Transform(Context->buf, (ULONG *)Context->in);
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/* Now fill the next block with 56 bytes */
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memset(Context->in, 0, 56);
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}else { /* Pad block to 56 bytes */
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memset(p, 0, count - 8);
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}
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/* Append length in bits and transform */
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((ULONG *)Context->in)[14] = Context->i[0];
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((ULONG *)Context->in)[15] = Context->i[1];
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MD5Transform(Context->buf, (ULONG *)Context->in);
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memcpy(Context->digest, Context->buf, 16);
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}
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#define F1(x, y, z) (z ^ (x & (y ^ z)))
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#define F2(x, y, z) F1(z, x, y)
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#define F3(x, y, z) (x ^ y ^ z)
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#define F4(x, y, z) (y ^ (x | ~z))
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#define MD5STEP(f, w, x, y, z, data, s) \
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( w += f(x, y, z) + data, w = _rotl(w, s), w += x )
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void MD5Transform(ULONG buf[4], ULONG in[16])
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{
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register ULONG a, b, c, d;
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a = buf[0];
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b = buf[1];
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c = buf[2];
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d = buf[3];
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MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
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MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
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MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
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MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
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MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
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MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
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MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
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MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
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MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
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MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
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MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
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MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
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MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
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MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
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MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
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MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
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MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
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MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
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MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
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MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
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MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
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MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
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MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
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MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
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MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
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MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
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MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
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MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
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MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
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MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
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MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
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MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
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MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
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MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
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MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
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MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
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MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
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MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
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MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
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MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
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MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
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MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
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MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
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MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
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MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
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MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
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MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
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MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
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MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
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MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
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MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
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MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
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MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
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MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
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MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
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MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
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MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
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MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
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MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
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MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
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MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
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MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
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MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
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MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
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buf[0] += a;
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buf[1] += b;
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buf[2] += c;
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buf[3] += d;
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} |