md5.h

来自「一个很有名的浏览器」· C头文件 代码 · 共 40 行

/* $Id: md5.h,v 1.1 2004/11/27 17:53:35 jonas Exp $ */

#ifndef EL__UTIL_MD5_H
#define EL__UTIL_MD5_H

#include "util/types.h"

struct md5_context {
	uint32_t buf[4];
	uint32_t bits[2];
	unsigned char in[64];
};

/* The interface for digesting several chunks of data. To compute the message
 * digest of a chunk of bytes, declare an md5_context structure, pass it to
 * init_md5(), call update_md5() as needed on buffers full of bytes, and then
 * call done_md5(), which will fill a supplied 16-byte array with the digest. */
void init_md5(struct md5_context *context);
void update_md5(struct md5_context *context, const unsigned char *data, unsigned long length);
void done_md5(struct md5_context *context, unsigned char digest[16]);

/* Digest the passed @data with the given length and stores the MD5 digest in
 * the @digest parameter. */
unsigned char *
digest_md5(const unsigned char *data, unsigned long length, unsigned char digest[16]);

#ifdef CONFIG_MD5
/* Provide compatibility with the OpenSSL interface: */

typedef struct md5_context MD5_CTX;
#define MD5_DIGEST_LENGTH 16
#define MD5_Init(context)		init_md5(context)
#define MD5_Update(context, data, len)	update_md5(context, data, len)
#define MD5_Final(md5, context)		done_md5(context, md5)
#define MD5(data, len, md5)		digest_md5(data, len, md5)

#endif /* CONFIG_MD5 */

#endif