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/* Licensed under GPLv2+ - see LICENSE file for details */
#ifndef CCAN_MD4_H
#define CCAN_MD4_H
#include <stdint.h>
#include <stdlib.h>
/**
* md4_ctx - context structure for md4 hashing
* @hash: the 128-bit hash value (only valid after md4_finish)
* @block: internal working state.
* @byte_count: the total number of bytes processed.
*/
struct md4_ctx {
union {
unsigned char bytes[16];
uint32_t words[4];
} hash;
uint32_t block[16];
uint64_t byte_count;
};
/**
* md4_init - (re-)initialize the struct md4_ctx before md4_hash.
* @mctx: the struct md4_ctx which will be handed to md4_hash.
*
* Contexts can be safely re-used by calling md4_init() on them again.
*
* Example:
* struct md4_ctx ctx;
*
* md4_init(&ctx);
* ...
*/
void md4_init(struct md4_ctx *mctx);
/**
* md4_hash - add these bytes into the hash
* @mctx: the struct md4_ctx.
* @p: pointer to the bytes to hash.
* @len: the number of bytes pointed to by @p.
*
* Example:
* struct md4_ctx ctx;
*
* md4_init(&ctx);
* md4_hash(&ctx, "hello", 5);
* md4_hash(&ctx, " ", 1);
* md4_hash(&ctx, "world", 5);
*/
void md4_hash(struct md4_ctx *mctx, const void *p, size_t len);
/**
* md4_finish - complete the MD4 hash
* @mctx: the struct md4_ctx.
*
* Example:
* struct md4_ctx ctx;
*
* md4_init(&ctx);
* md4_hash(&ctx, "hello world", strlen("hello world"));
* md4_finish(&ctx);
*/
void md4_finish(struct md4_ctx *mctx);
#endif /* CCAN_MD4_H */
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