You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.2 KiB
75 lines
2.2 KiB
2 months ago
|
/*
|
||
|
|
* UCW Library -- MD5 Message Digest
|
||
|
|
*
|
||
|
|
* This file is in public domain (see ucw/md5.c).
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _UCW_MD5_H
|
||
|
|
#define _UCW_MD5_H
|
||
|
|
|
||
|
|
#ifdef CONFIG_UCW_CLEAN_ABI
|
||
|
|
#define md5_final ucw_md5_final
|
||
|
|
#define md5_hash_buffer ucw_md5_hash_buffer
|
||
|
|
#define md5_init ucw_md5_init
|
||
|
|
#define md5_transform ucw_md5_transform
|
||
|
|
#define md5_update ucw_md5_update
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Internal MD5 hash state.
|
||
|
|
* You should use it just as an opaque handle only.
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
u32 buf[4];
|
||
|
|
u32 bits[2];
|
||
|
|
byte in[64];
|
||
|
|
} md5_context;
|
||
|
|
|
||
|
|
void md5_init(md5_context *context); /** Initialize the MD5 hashing algorithm in @context. **/
|
||
|
|
/**
|
||
|
|
* Push another @len bytes of data from @buf to the MD5 hash
|
||
|
|
* represented by @context. You can call it multiple time on the same
|
||
|
|
* @context without reinitializing it and the result will be the same
|
||
|
|
* as if you concatenated all the data together and fed them here all at
|
||
|
|
* once.
|
||
|
|
*/
|
||
|
|
void md5_update(md5_context *context, const byte *buf, uint len);
|
||
|
|
/**
|
||
|
|
* Call this after the last @md5_update(). It will terminate the
|
||
|
|
* algorithm and return a pointer to the result.
|
||
|
|
*
|
||
|
|
* Note that the data it points to are stored inside the @context, so
|
||
|
|
* if you use it to compute another hash or it ceases to exist, the
|
||
|
|
* pointer becomes invalid.
|
||
|
|
*
|
||
|
|
* To convert the hash to its usual hexadecimal representation, see
|
||
|
|
* <<string:mem_to_hex()>>.
|
||
|
|
*/
|
||
|
|
byte *md5_final(md5_context *context);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This is the core routine of the MD5 algorithm. It takes 16 longwords of
|
||
|
|
* data in @in and transforms the hash in @buf according to them.
|
||
|
|
*
|
||
|
|
* You probably do not want to call this one directly.
|
||
|
|
*/
|
||
|
|
void md5_transform(u32 buf[4], const u32 in[16]);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* MD5 one-shot convenience method. It takes @length bytes from
|
||
|
|
* @buffer, creates the hash from them and returns it in @output.
|
||
|
|
*
|
||
|
|
* It is equivalent to this code:
|
||
|
|
*
|
||
|
|
* md5_context c;
|
||
|
|
* md5_init(&c);
|
||
|
|
* md5_update(&c, buffer, length);
|
||
|
|
* memcpy(outbuf, md5_final(&c), MD5_SIZE);
|
||
|
|
*/
|
||
|
|
void md5_hash_buffer(byte *outbuf, const byte *buffer, uint length);
|
||
|
|
|
||
|
|
#define MD5_HEX_SIZE 33 /** How many bytes a string buffer for MD5 in hexadecimal format should have. **/
|
||
|
|
#define MD5_SIZE 16 /** Number of bytes the MD5 hash takes in the binary form. **/
|
||
|
|
|
||
|
|
#endif /* !_UCW_MD5_H */
|