ReactOS 0.4.15-dev-8348-gc1b9bb5
md5.h File Reference
#include <ntdef.h>
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Classes

struct  MD5_CTX
 

Functions

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)
 

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

◆ 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}

◆ 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 GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLenum GLsizei len
Definition: glext.h:6722
if(dx< 0)
Definition: linetemp.h:194