ReactOS  0.4.14-dev-114-gc8cbd56
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
#define a
Definition: ke_i.h:78
#define F(x, y, z)
Definition: md4.c:161
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
#define d
Definition: ke_i.h:81
GLdouble s
Definition: gl.h:2039
#define rotl32(x, n)
Definition: md4.c:159
#define c
Definition: ke_i.h:80
GLboolean GLboolean GLboolean GLboolean a
Definition: glext.h:6204

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) ); \
}
#define G(x, y, z)
Definition: md4.c:162
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
#define a
Definition: ke_i.h:78
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
#define d
Definition: ke_i.h:81
GLdouble s
Definition: gl.h:2039
#define rotl32(x, n)
Definition: md4.c:159
#define c
Definition: ke_i.h:80
GLboolean GLboolean GLboolean GLboolean a
Definition: glext.h:6204
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31

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
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
#define a
Definition: ke_i.h:78
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
#define d
Definition: ke_i.h:81
GLdouble s
Definition: gl.h:2039
#define rotl32(x, n)
Definition: md4.c:159
#define c
Definition: ke_i.h:80
GLboolean GLboolean GLboolean GLboolean a
Definition: glext.h:6204
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31

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 }
unsigned char digest[16]
Definition: util.c:86
static void MD4Transform(unsigned int buf[4], unsigned int const in[16])
Definition: md4.c:181
GLuint GLuint GLsizei count
Definition: gl.h:1545
unsigned int buf[4]
Definition: util.c:83
void byteReverse(unsigned char *buf, unsigned longs)
Definition: util.c:8
unsigned int i[2]
Definition: util.c:84
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
unsigned char in[64]
Definition: util.c:85
GLfloat GLfloat p
Definition: glext.h:8902
#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 }
unsigned int buf[4]
Definition: util.c:83
unsigned int i[2]
Definition: util.c:84

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 }
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
#define HH(a, b, c, d, x, s)
Definition: md4.c:173
#define a
Definition: ke_i.h:78
#define b
Definition: ke_i.h:79
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
#define d
Definition: ke_i.h:81
const GLubyte * c
Definition: glext.h:8905
#define GG(a, b, c, d, x, s)
Definition: md4.c:169
GLuint in
Definition: glext.h:9616
#define FF(a, b, c, d, x, s)
Definition: md4.c:165
#define c
Definition: ke_i.h:80
GLboolean GLboolean GLboolean GLboolean a
Definition: glext.h:6204

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 }
static void MD4Transform(unsigned int buf[4], unsigned int const in[16])
Definition: md4.c:181
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLdouble GLdouble t
Definition: gl.h:2047
unsigned int buf[4]
Definition: util.c:83
void byteReverse(unsigned char *buf, unsigned longs)
Definition: util.c:8
unsigned int i[2]
Definition: util.c:84
if(!(yy_init))
Definition: macro.lex.yy.c:714
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
GLenum GLsizei len
Definition: glext.h:6722
unsigned char in[64]
Definition: util.c:85
GLfloat GLfloat p
Definition: glext.h:8902

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