File: hmac-md5.h

package info (click to toggle)
kolab-cyrus-imapd 2.2.13-2
  • links: PTS
  • area: main
  • in suites: etch-m68k
  • size: 14,028 kB
  • ctags: 8,058
  • sloc: ansic: 83,921; sh: 36,867; perl: 3,994; makefile: 1,416; yacc: 949; awk: 302; lex: 249; asm: 214
file content (52 lines) | stat: -rwxr-xr-x 1,317 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
/* hmac-md5.h -- HMAC_MD5 functions
 * $Id: hmac-md5.h,v 1.2 2002/05/25 19:57:52 leg Exp $
 */

#ifndef HMAC_MD5_H
#define HMAC_MD5_H 1

#define HMAC_MD5_SIZE 16

/* intermediate MD5 context */
typedef struct HMAC_MD5_CTX_s {
    MD5_CTX ictx, octx;
} HMAC_MD5_CTX;

/* intermediate HMAC state
 *  values stored in network byte order (Big Endian)
 */
typedef struct HMAC_MD5_STATE_s {
    UINT4 istate[4];
    UINT4 ostate[4];
} HMAC_MD5_STATE;

/* One step hmac computation
 *
 * digest may be same as text or key
 */
void hmac_md5(const unsigned char *text, int text_len,
	      const unsigned char *key, int key_len,
	      unsigned char digest[HMAC_MD5_SIZE]);

/* create context from key
 */
void hmac_md5_init(HMAC_MD5_CTX *hmac,
		   const unsigned char *key, int key_len);

/* precalculate intermediate state from key
 */
void hmac_md5_precalc(HMAC_MD5_STATE *hmac,
		      const unsigned char *key, int key_len);

/* initialize context from intermediate state
 */
void hmac_md5_import(HMAC_MD5_CTX *hmac, HMAC_MD5_STATE *state);

#define hmac_md5_update(hmac, text, text_len) MD5Update(&(hmac)->ictx, (text), (text_len))

/* finish hmac from intermediate result.  Intermediate result is zeroed.
 */
void hmac_md5_final(unsigned char digest[HMAC_MD5_SIZE],
		    HMAC_MD5_CTX *hmac);

#endif /* HMAC_MD5_H */