CC_MD5(3cc) LOCAL CC_MD5(3cc)
NAME
CC_MD2_Init CC_MD2_Update CC_MD2_Final CC_MD2
CC_MD4_Init CC_MD4_Update CC_MD4_Final CC_MD4
CC_MD5_Init CC_MD5_Update CC_MD5_Final CC_MD5
-- MD2, MD4, and MD5 hash functions
SYNOPSIS
#include <CommonCrypto/CommonDigest.h>
extern int
CC_MD2_Init(CC_MD2_CTX *c);
extern int
CC_MD2_Update(CC_MD2_CTX *c, const void *data, CC_LONG len);
extern int
CC_MD2_Final(unsigned char *md, CC_MD2_CTX *c);
extern unsigned char *
CC_MD2(const void *data, CC_LONG len, unsigned char *md);
extern int
CC_MD4_Init(CC_MD4_CTX *c);
extern int
CC_MD4_Update(CC_MD4_CTX *c, const void *data, CC_LONG len);
extern int
CC_MD4_Final(unsigned char *md, CC_MD4_CTX *c);
extern unsigned char *
CC_MD4(const void *data, CC_LONG len, unsigned char *md);
extern int
CC_MD5_Init(CC_MD5_CTX *c);
extern int
CC_MD5_Update(CC_MD5_CTX *c, const void *data, CC_LONG len);
extern int
CC_MD5_Final(unsigned char *md, CC_MD5_CTX *c);
extern unsigned char *
CC_MD5(const void *data, CC_LONG len, unsigned char *md);
DESCRIPTION
The following functions are used to produce an hash from data:
CC_MD2_Init() initializes a CC_MD2_CTX structure.
CC_MD2_Update() can be called repeatedly with chunks of the message to be
hashed (len bytes at data).
CC_MD2_Final() places the MD2 message digest in md, which must have space
for CC_MD2_DIGEST_LENGTH == 16 bytes of output, and erases the
CC_MD2_CTX.
CC_MD2() computes the MD2 message digest of the len bytes at data and
places it in md (which must have space for CC_MD2_DIGEST_LENGTH == 16
bytes of output). It returns the md pointer.
CC_MD4_Init(), CC_MD4_Update(), CC_MD4_Final(), CC_MD4(), CC_MD5_Init(),
CC_MD5_Update(), CC_MD5_Final(), and CC_MD5() are analogous using an
CC_MD4_CTX and CC_MD5_CTX structure.
NOTE
MD2, MD4, and MD5 are recommended only for compatibility with existing
applications. In new applications, SHA-256(or greater) should be pre-
ferred.
RETURN VALUES
All routines return 1 except for the one-shot routines ( CC_MD2() ,
etc.), which return the pointer passed in via the md parameter.
CONFORMING TO
RFC 1319, RFC 1320, RFC 1321
SEE ALSO
CC_crypto(3cc), CC_SHA(3cc), CCHmac(3cc), CCCryptor(3cc)
HISTORY
These functions are available in OS X 10.4 and later.
These functions provide similar functionality to the routines found in
OpenSSL 0.9.6 and may use the same implementation.
BSD April 5, 2007 BSD
Mac OS X 10.6 - Generated Thu Sep 17 20:10:54 CDT 2009