mdc2 man page on OpenDarwin

Man page or keyword search:  
man Server   3202 pages
apropos Keyword Search (all sections)
Output format
OpenDarwin logo
[printable version]

mdc2(3)				    OpenSSL			       mdc2(3)

NAME
       MDC2, MDC2_Init, MDC2_Update, MDC2_Final - MDC2 hash function

SYNOPSIS
	#include <openssl/mdc2.h>

	unsigned char *MDC2(const unsigned char *d, unsigned long n,
			 unsigned char *md);

	void MDC2_Init(MDC2_CTX *c);
	void MDC2_Update(MDC2_CTX *c, const unsigned char *data,
			 unsigned long len);
	void MDC2_Final(unsigned char *md, MDC2_CTX *c);

DESCRIPTION
       MDC2 is a method to construct hash functions with 128 bit output from
       block ciphers.  These functions are an implementation of MDC2 with DES.

       MDC2() computes the MDC2 message digest of the n bytes at d and places
       it in md (which must have space for MDC2_DIGEST_LENGTH == 16 bytes of
       output). If md is NULL, the digest is placed in a static array.

       The following functions may be used if the message is not completely
       stored in memory:

       MDC2_Init() initializes a MDC2_CTX structure.

       MDC2_Update() can be called repeatedly with chunks of the message to be
       hashed (len bytes at data).

       MDC2_Final() places the message digest in md, which must have space for
       MDC2_DIGEST_LENGTH == 16 bytes of output, and erases the MDC2_CTX.

       Applications should use the higher level functions EVP_DigestInit(3)
       etc. instead of calling the hash functions directly.

RETURN VALUES
       MDC2() returns a pointer to the hash value.

       MDC2_Init(), MDC2_Update() and MDC2_Final() do not return values.

CONFORMING TO
       ISO/IEC 10118-2, with DES

SEE ALSO
       sha(3), EVP_DigestInit(3)

HISTORY
       MDC2(), MDC2_Init(), MDC2_Update() and MDC2_Final() are available since
       SSLeay 0.8.

0.9.7d				  2002-04-30			       mdc2(3)
[top]

List of man pages available for OpenDarwin

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net