Generic Message Digest Interface

/*
**	(c) COPYRIGHT W3C, INRIA 1998.
**	Please first read the full copyright statement in the file COPYRIGHT.
*/

Contains a generic interface to the message digest algorithms, inspired from the RSA-Euro toolkit. For the moment, it only covers MD5. SHA and other algorithms could be added later on. This code is only used during message digest authentication. AUTHORS: JK Jose Kahan jose@w3.org HISTORY: Dec 98 JK Created the module from scratch

This module is implemented by HTDigest.c, and it is a part of the W3C Sample Code Library.

#ifndef HTDigest_H
#define HTDigest_H
/* Library include files */
#include "WWWLib.h"
/* add the MD algorithm header files here below */
#include "md5.h"

Interface to message digest algorithms

The list of known message digest algorithms

#define HTDaMD5 1

This is our general digest context structure. If you add a new algorithm, include its context in the union.

typedef struct _HTDigestContext {
  int algorithm;          
    union { 
           MD5_CTX md5;
    } context;
} HTDigestContext;

This is a set of generic functions for generating a message digest

extern BOOL HTDigest_init (HTDigestContext *context, int digesttype);
extern BOOL HTDigest_update (HTDigestContext *context, char *input, unsigned int inputLen);
extern BOOL HTDigest_final (unsigned char *digest, HTDigestContext *context);
#endif	/* NOT HTDigest_H */


@(#) $Id: HTDigest.html,v 2.3 1999/02/22 15:54:19 kahan Exp $