ReactOS 0.4.15-dev-7906-g1b85a5f
md5.c File Reference
#include "md5.h"
#include "util.h"
Include dependency graph for md5.c:

Go to the source code of this file.

Macros

#define F1(x, y, z)   (z ^ (x & (y ^ z)))
 
#define F2(x, y, z)   F1( z, x, y )
 
#define F3(x, y, z)   (x ^ y ^ z)
 
#define F4(x, y, z)   (y ^ (x | ~z))
 
#define MD5STEP(f, w, x, y, z, data, s)    ( w += f( x, y, z ) + data, w = w << s | w >> (32 - s), w += x )
 

Functions

static void MD5Transform (unsigned int buf[4], const unsigned int in[16])
 
VOID NTAPI MD5Init (MD5_CTX *ctx)
 
VOID NTAPI MD5Update (MD5_CTX *ctx, const unsigned char *buf, unsigned int len)
 
VOID NTAPI MD5Final (MD5_CTX *ctx)
 

Macro Definition Documentation

◆ F1

#define F1 (   x,
  y,
  z 
)    (z ^ (x & (y ^ z)))

Definition at line 161 of file md5.c.

◆ F2

#define F2 (   x,
  y,
  z 
)    F1( z, x, y )

Definition at line 162 of file md5.c.

◆ F3

#define F3 (   x,
  y,
  z 
)    (x ^ y ^ z)

Definition at line 163 of file md5.c.

◆ F4

#define F4 (   x,
  y,
  z 
)    (y ^ (x | ~z))

Definition at line 164 of file md5.c.

◆ MD5STEP

#define MD5STEP (   f,
  w,
  x,
  y,
  z,
  data,
  s 
)     ( w += f( x, y, z ) + data, w = w << s | w >> (32 - s), w += x )

Definition at line 167 of file md5.c.

Function Documentation

◆ MD5Final()

VOID NTAPI MD5Final ( MD5_CTX ctx)

Definition at line 113 of file md5.c.

114{
115 unsigned int count;
116 unsigned char *p;
117
118 /* Compute number of bytes mod 64 */
119 count = (ctx->i[0] >> 3) & 0x3F;
120
121 /* Set the first char of padding to 0x80. This is safe since there is
122 always at least one byte free */
123 p = ctx->in + count;
124 *p++ = 0x80;
125
126 /* Bytes of padding needed to make 64 bytes */
127 count = 64 - 1 - count;
128
129 /* Pad out to 56 mod 64 */
130 if (count < 8)
131 {
132 /* Two lots of padding: Pad the first block to 64 bytes */
133 memset( p, 0, count );
134 byteReverse( ctx->in, 16 );
135 MD5Transform( ctx->buf, (unsigned int *)ctx->in );
136
137 /* Now fill the next block with 56 bytes */
138 memset( ctx->in, 0, 56 );
139 }
140 else
141 {
142 /* Pad block to 56 bytes */
143 memset( p, 0, count - 8 );
144 }
145
146 byteReverse( ctx->in, 14 );
147
148 /* Append length in bits and transform */
149 ((unsigned int *)ctx->in)[14] = ctx->i[0];
150 ((unsigned int *)ctx->in)[15] = ctx->i[1];
151
152 MD5Transform( ctx->buf, (unsigned int *)ctx->in );
153 byteReverse( (unsigned char *)ctx->buf, 4 );
154 memcpy( ctx->digest, ctx->buf, 16 );
155 memset(ctx->in, 0, sizeof(ctx->in));
156}
GLuint GLuint GLsizei count
Definition: gl.h:1545
GLfloat GLfloat p
Definition: glext.h:8902
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
static void MD5Transform(unsigned int buf[4], const unsigned int in[16])
Definition: md5.c:175
#define byteReverse(buf, long)
Definition: util.h:5
#define memset(x, y, z)
Definition: compat.h:39

Referenced by finalize_hash_impl(), HMACMD5Final(), HMACMD5Init(), KsecGetKeyData(), KsecInitializeEncryptionSupport(), msi_get_filehash(), and SECUR32_CalcNTLM2Subkey().

◆ MD5Init()

VOID NTAPI MD5Init ( MD5_CTX ctx)

Definition at line 45 of file md5.c.

46{
47 ctx->buf[0] = 0x67452301;
48 ctx->buf[1] = 0xefcdab89;
49 ctx->buf[2] = 0x98badcfe;
50 ctx->buf[3] = 0x10325476;
51
52 ctx->i[0] = ctx->i[1] = 0;
53}

Referenced by HMACMD5Final(), HMACMD5Init(), init_hash_impl(), KsecInitializeEncryptionSupport(), msi_get_filehash(), and SECUR32_CalcNTLM2Subkey().

◆ MD5Transform()

static void MD5Transform ( unsigned int  buf[4],
const unsigned int  in[16] 
)
static

Definition at line 175 of file md5.c.

176{
177 register unsigned int a, b, c, d;
178
179 a = buf[0];
180 b = buf[1];
181 c = buf[2];
182 d = buf[3];
183
184 MD5STEP( F1, a, b, c, d, in[0] + 0xd76aa478, 7 );
185 MD5STEP( F1, d, a, b, c, in[1] + 0xe8c7b756, 12 );
186 MD5STEP( F1, c, d, a, b, in[2] + 0x242070db, 17 );
187 MD5STEP( F1, b, c, d, a, in[3] + 0xc1bdceee, 22 );
188 MD5STEP( F1, a, b, c, d, in[4] + 0xf57c0faf, 7 );
189 MD5STEP( F1, d, a, b, c, in[5] + 0x4787c62a, 12 );
190 MD5STEP( F1, c, d, a, b, in[6] + 0xa8304613, 17 );
191 MD5STEP( F1, b, c, d, a, in[7] + 0xfd469501, 22 );
192 MD5STEP( F1, a, b, c, d, in[8] + 0x698098d8, 7 );
193 MD5STEP( F1, d, a, b, c, in[9] + 0x8b44f7af, 12 );
194 MD5STEP( F1, c, d, a, b, in[10] + 0xffff5bb1, 17 );
195 MD5STEP( F1, b, c, d, a, in[11] + 0x895cd7be, 22 );
196 MD5STEP( F1, a, b, c, d, in[12] + 0x6b901122, 7 );
197 MD5STEP( F1, d, a, b, c, in[13] + 0xfd987193, 12 );
198 MD5STEP( F1, c, d, a, b, in[14] + 0xa679438e, 17 );
199 MD5STEP( F1, b, c, d, a, in[15] + 0x49b40821, 22 );
200
201 MD5STEP( F2, a, b, c, d, in[1] + 0xf61e2562, 5 );
202 MD5STEP( F2, d, a, b, c, in[6] + 0xc040b340, 9 );
203 MD5STEP( F2, c, d, a, b, in[11] + 0x265e5a51, 14 );
204 MD5STEP( F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20 );
205 MD5STEP( F2, a, b, c, d, in[5] + 0xd62f105d, 5 );
206 MD5STEP( F2, d, a, b, c, in[10] + 0x02441453, 9 );
207 MD5STEP( F2, c, d, a, b, in[15] + 0xd8a1e681, 14 );
208 MD5STEP( F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20 );
209 MD5STEP( F2, a, b, c, d, in[9] + 0x21e1cde6, 5 );
210 MD5STEP( F2, d, a, b, c, in[14] + 0xc33707d6, 9 );
211 MD5STEP( F2, c, d, a, b, in[3] + 0xf4d50d87, 14 );
212 MD5STEP( F2, b, c, d, a, in[8] + 0x455a14ed, 20 );
213 MD5STEP( F2, a, b, c, d, in[13] + 0xa9e3e905, 5 );
214 MD5STEP( F2, d, a, b, c, in[2] + 0xfcefa3f8, 9 );
215 MD5STEP( F2, c, d, a, b, in[7] + 0x676f02d9, 14 );
216 MD5STEP( F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20 );
217
218 MD5STEP( F3, a, b, c, d, in[5] + 0xfffa3942, 4 );
219 MD5STEP( F3, d, a, b, c, in[8] + 0x8771f681, 11 );
220 MD5STEP( F3, c, d, a, b, in[11] + 0x6d9d6122, 16 );
221 MD5STEP( F3, b, c, d, a, in[14] + 0xfde5380c, 23 );
222 MD5STEP( F3, a, b, c, d, in[1] + 0xa4beea44, 4 );
223 MD5STEP( F3, d, a, b, c, in[4] + 0x4bdecfa9, 11 );
224 MD5STEP( F3, c, d, a, b, in[7] + 0xf6bb4b60, 16 );
225 MD5STEP( F3, b, c, d, a, in[10] + 0xbebfbc70, 23 );
226 MD5STEP( F3, a, b, c, d, in[13] + 0x289b7ec6, 4 );
227 MD5STEP( F3, d, a, b, c, in[0] + 0xeaa127fa, 11 );
228 MD5STEP( F3, c, d, a, b, in[3] + 0xd4ef3085, 16 );
229 MD5STEP( F3, b, c, d, a, in[6] + 0x04881d05, 23 );
230 MD5STEP( F3, a, b, c, d, in[9] + 0xd9d4d039, 4 );
231 MD5STEP( F3, d, a, b, c, in[12] + 0xe6db99e5, 11 );
232 MD5STEP( F3, c, d, a, b, in[15] + 0x1fa27cf8, 16 );
233 MD5STEP( F3, b, c, d, a, in[2] + 0xc4ac5665, 23 );
234
235 MD5STEP( F4, a, b, c, d, in[0] + 0xf4292244, 6 );
236 MD5STEP( F4, d, a, b, c, in[7] + 0x432aff97, 10 );
237 MD5STEP( F4, c, d, a, b, in[14] + 0xab9423a7, 15 );
238 MD5STEP( F4, b, c, d, a, in[5] + 0xfc93a039, 21 );
239 MD5STEP( F4, a, b, c, d, in[12] + 0x655b59c3, 6 );
240 MD5STEP( F4, d, a, b, c, in[3] + 0x8f0ccc92, 10 );
241 MD5STEP( F4, c, d, a, b, in[10] + 0xffeff47d, 15 );
242 MD5STEP( F4, b, c, d, a, in[1] + 0x85845dd1, 21 );
243 MD5STEP( F4, a, b, c, d, in[8] + 0x6fa87e4f, 6 );
244 MD5STEP( F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10 );
245 MD5STEP( F4, c, d, a, b, in[6] + 0xa3014314, 15 );
246 MD5STEP( F4, b, c, d, a, in[13] + 0x4e0811a1, 21 );
247 MD5STEP( F4, a, b, c, d, in[4] + 0xf7537e82, 6 );
248 MD5STEP( F4, d, a, b, c, in[11] + 0xbd3af235, 10 );
249 MD5STEP( F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15 );
250 MD5STEP( F4, b, c, d, a, in[9] + 0xeb86d391, 21 );
251
252 buf[0] += a;
253 buf[1] += b;
254 buf[2] += c;
255 buf[3] += d;
256}
const GLubyte * c
Definition: glext.h:8905
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLuint in
Definition: glext.h:9616
GLboolean GLboolean GLboolean GLboolean a
Definition: glext.h:6204
#define d
Definition: ke_i.h:81
#define a
Definition: ke_i.h:78
#define c
Definition: ke_i.h:80
#define b
Definition: ke_i.h:79
#define MD5STEP(f, w, x, y, z, data, s)
Definition: md5.c:167
#define F1(x, y, z)
Definition: md5.c:161
#define F4(x, y, z)
Definition: md5.c:164
#define F3(x, y, z)
Definition: md5.c:163
#define F2(x, y, z)
Definition: md5.c:162

Referenced by MD5Final(), and MD5Update().

◆ MD5Update()

VOID NTAPI MD5Update ( MD5_CTX ctx,
const unsigned char buf,
unsigned int  len 
)

Definition at line 59 of file md5.c.

60{
61 register unsigned int t;
62
63 /* Update bitcount */
64 t = ctx->i[0];
65
66 if ((ctx->i[0] = t + (len << 3)) < t)
67 ctx->i[1]++; /* Carry from low to high */
68
69 ctx->i[1] += len >> 29;
70 t = (t >> 3) & 0x3f;
71
72 /* Handle any leading odd-sized chunks */
73 if (t)
74 {
75 unsigned char *p = (unsigned char *)ctx->in + t;
76 t = 64 - t;
77
78 if (len < t)
79 {
80 memcpy( p, buf, len );
81 return;
82 }
83
84 memcpy( p, buf, t );
85 byteReverse( ctx->in, 16 );
86
87 MD5Transform( ctx->buf, (unsigned int *)ctx->in );
88
89 buf += t;
90 len -= t;
91 }
92
93 /* Process data in 64-byte chunks */
94 while (len >= 64)
95 {
96 memcpy( ctx->in, buf, 64 );
97 byteReverse( ctx->in, 16 );
98
99 MD5Transform( ctx->buf, (unsigned int *)ctx->in );
100
101 buf += 64;
102 len -= 64;
103 }
104
105 /* Handle any remaining bytes of data. */
106 memcpy( ctx->in, buf, len );
107}
GLdouble GLdouble t
Definition: gl.h:2047
GLenum GLsizei len
Definition: glext.h:6722
if(dx< 0)
Definition: linetemp.h:194

Referenced by HMACMD5Final(), HMACMD5Init(), HMACMD5Update(), KsecGetKeyData(), KsecInitializeEncryptionSupport(), msi_get_filehash(), SECUR32_CalcNTLM2Subkey(), and update_hash_impl().