ReactOS 0.4.15-dev-5666-gc548b97
md4.c File Reference
#include "md4.h"
#include "util.h"
Include dependency graph for md4.c:

Go to the source code of this file.

Macros

#define rotl32(x, n)   (((x) << ((unsigned int)(n))) | ((x) >> (32 - (unsigned int)(n))))
 
#define F(x, y, z)   (((x) & (y)) | ((~x) & (z)))
 
#define G(x, y, z)   (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
 
#define H(x, y, z)   ((x) ^ (y) ^ (z))
 
#define FF(a, b, c, d, x, s)
 
#define GG(a, b, c, d, x, s)
 
#define HH(a, b, c, d, x, s)
 

Functions

static void MD4Transform (unsigned int buf[4], unsigned int const in[16])
 
VOID NTAPI MD4Init (MD4_CTX *ctx)
 
VOID NTAPI MD4Update (MD4_CTX *ctx, const unsigned char *buf, unsigned int len)
 
VOID NTAPI MD4Final (MD4_CTX *ctx)
 

Macro Definition Documentation

◆ F

#define F (   x,
  y,
  z 
)    (((x) & (y)) | ((~x) & (z)))

Definition at line 161 of file md4.c.

◆ FF

#define FF (   a,
  b,
  c,
  d,
  x,
  s 
)
Value:
{ \
(a) += F( (b), (c), (d) ) + (x); \
(a) = rotl32( (a), (s) ); \
}
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
GLdouble s
Definition: gl.h:2039
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
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 rotl32(x, n)
Definition: md4.c:159
#define F(x, y, z)
Definition: md4.c:161

Definition at line 165 of file md4.c.

◆ G

#define G (   x,
  y,
  z 
)    (((x) & (y)) | ((x) & (z)) | ((y) & (z)))

Definition at line 162 of file md4.c.

◆ GG

#define GG (   a,
  b,
  c,
  d,
  x,
  s 
)
Value:
{ \
(a) += G( (b), (c), (d) ) + (x) + (unsigned int)0x5a827999; \
(a) = rotl32( (a), (s) ); \
}
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31
#define G(x, y, z)
Definition: md4.c:162

Definition at line 169 of file md4.c.

◆ H

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

Definition at line 163 of file md4.c.

◆ HH

#define HH (   a,
  b,
  c,
  d,
  x,
  s 
)
Value:
{ \
(a) += H( (b), (c), (d) ) + (x) + (unsigned int)0x6ed9eba1; \
(a) = rotl32( (a), (s) ); \
}
#define H(x, y, z)
Definition: md4.c:163

Definition at line 173 of file md4.c.

◆ rotl32

#define rotl32 (   x,
  n 
)    (((x) << ((unsigned int)(n))) | ((x) >> (32 - (unsigned int)(n))))

Definition at line 159 of file md4.c.

Function Documentation

◆ MD4Final()

VOID NTAPI MD4Final ( MD4_CTX ctx)

Definition at line 113 of file md4.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 MD4Transform( 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 MD4Transform( ctx->buf, (unsigned int *)ctx->in );
153 byteReverse( (unsigned char *)ctx->buf, 4 );
154 memcpy( ctx->digest, ctx->buf, 16 );
155}
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 MD4Transform(unsigned int buf[4], unsigned int const in[16])
Definition: md4.c:181
#define byteReverse(buf, long)
Definition: util.h:5
#define memset(x, y, z)
Definition: compat.h:39

Referenced by finalize_hash_impl(), KsecGatherEntropyData(), SECUR32_CreateNTLM1SessionKey(), SystemFunction007(), and SystemFunction010().

◆ MD4Init()

VOID NTAPI MD4Init ( MD4_CTX ctx)

Definition at line 45 of file md4.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 init_hash_impl(), KsecGatherEntropyData(), SECUR32_CreateNTLM1SessionKey(), SystemFunction007(), and SystemFunction010().

◆ MD4Transform()

static void MD4Transform ( unsigned int  buf[4],
unsigned int const  in[16] 
)
static

Definition at line 181 of file md4.c.

182{
183 register unsigned int a, b, c, d;
184
185 a = buf[0];
186 b = buf[1];
187 c = buf[2];
188 d = buf[3];
189
190 FF( a, b, c, d, in[0], 3 );
191 FF( d, a, b, c, in[1], 7 );
192 FF( c, d, a, b, in[2], 11 );
193 FF( b, c, d, a, in[3], 19 );
194 FF( a, b, c, d, in[4], 3 );
195 FF( d, a, b, c, in[5], 7 );
196 FF( c, d, a, b, in[6], 11 );
197 FF( b, c, d, a, in[7], 19 );
198 FF( a, b, c, d, in[8], 3 );
199 FF( d, a, b, c, in[9], 7 );
200 FF( c, d, a, b, in[10], 11 );
201 FF( b, c, d, a, in[11], 19 );
202 FF( a, b, c, d, in[12], 3 );
203 FF( d, a, b, c, in[13], 7 );
204 FF( c, d, a, b, in[14], 11 );
205 FF( b, c, d, a, in[15], 19 );
206
207 GG( a, b, c, d, in[0], 3 );
208 GG( d, a, b, c, in[4], 5 );
209 GG( c, d, a, b, in[8], 9 );
210 GG( b, c, d, a, in[12], 13 );
211 GG( a, b, c, d, in[1], 3 );
212 GG( d, a, b, c, in[5], 5 );
213 GG( c, d, a, b, in[9], 9 );
214 GG( b, c, d, a, in[13], 13 );
215 GG( a, b, c, d, in[2], 3 );
216 GG( d, a, b, c, in[6], 5 );
217 GG( c, d, a, b, in[10], 9 );
218 GG( b, c, d, a, in[14], 13 );
219 GG( a, b, c, d, in[3], 3 );
220 GG( d, a, b, c, in[7], 5 );
221 GG( c, d, a, b, in[11], 9 );
222 GG( b, c, d, a, in[15], 13 );
223
224 HH( a, b, c, d, in[0], 3 );
225 HH( d, a, b, c, in[8], 9 );
226 HH( c, d, a, b, in[4], 11 );
227 HH( b, c, d, a, in[12], 15 );
228 HH( a, b, c, d, in[2], 3 );
229 HH( d, a, b, c, in[10], 9 );
230 HH( c, d, a, b, in[6], 11 );
231 HH( b, c, d, a, in[14], 15 );
232 HH( a, b, c, d, in[1], 3 );
233 HH( d, a, b, c, in[9], 9 );
234 HH( c, d, a, b, in[5], 11 );
235 HH( b, c, d, a, in[13], 15 );
236 HH( a, b, c, d, in[3], 3 );
237 HH( d, a, b, c, in[11], 9 );
238 HH( c, d, a, b, in[7], 11 );
239 HH( b, c, d, a, in[15], 15 );
240
241 buf[0] += a;
242 buf[1] += b;
243 buf[2] += c;
244 buf[3] += d;
245}
const GLubyte * c
Definition: glext.h:8905
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLuint in
Definition: glext.h:9616
#define b
Definition: ke_i.h:79
#define HH(a, b, c, d, x, s)
Definition: md4.c:173
#define GG(a, b, c, d, x, s)
Definition: md4.c:169
#define FF(a, b, c, d, x, s)
Definition: md4.c:165

Referenced by MD4Final(), and MD4Update().

◆ MD4Update()

VOID NTAPI MD4Update ( MD4_CTX ctx,
const unsigned char buf,
unsigned int  len 
)

Definition at line 59 of file md4.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 MD4Transform( 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 MD4Transform( 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 KsecGatherEntropyData(), SECUR32_CreateNTLM1SessionKey(), SystemFunction007(), SystemFunction010(), and update_hash_impl().