MD5 Hashing and digest functions

MD5 Hashing checking and HMAC Functions. More...

Functions
void	md5sum2 (unsigned char *buff, const void *data, unsigned long len, const void *data2, unsigned long len2)
	Calculate the MD5 hash accross 2 data chunks. More...
void	md5sum (unsigned char *buff, const void *data, unsigned long len)
	Calculate the MD5 hash. More...
int	md5cmp (unsigned char *digest1, unsigned char *digest2)
	Compare two md5 hashes. More...
void	md5hmac (unsigned char *buff, const void *data, unsigned long len, const void *key, unsigned long klen)
	Hash Message Authentication Codes (HMAC) MD5. More...

Detailed Description

MD5 Hashing checking and HMAC Functions.

Function Documentation

int md5cmp	(	unsigned char *	digest1,
		unsigned char *	digest2
	)

Compare two md5 hashes.

Parameters

digest1	Digest to compare.
digest2	Digest to compare.

Returns

0 on equality.

Definition at line 223 of file util.c.

                                                                  {
    return (_digest_cmp(digest1, digest2, 16));
}

void md5hmac	(	unsigned char *	buff,
		const void *	data,
		unsigned long	len,
		const void *	key,
		unsigned long	klen
	)

Hash Message Authentication Codes (HMAC) MD5.

Parameters

buff	HMAC returned in this buffer (16 bytes).
data	Data to sign.
len	Length of data.
key	Key to signwith.
klen	Length of key.

Definition at line 290 of file util.c.

References md5sum2().

                                                                                                                   {
    _hmac(buff, data, len, key, klen, md5sum2, 16);
}

void md5sum	(	unsigned char *	buff,
		const void *	data,
		unsigned long	len
	)

Calculate the MD5 hash.

Parameters

buff	buffer to place the hash (16 bytes).
data	First data chunk to calculate.
len	Length of data.

Definition at line 202 of file util.c.

References md5sum2().

                                                                             {
    md5sum2(buff, data, len, NULL, 0);
}

void md5sum2	(	unsigned char *	buff,
		const void *	data,
		unsigned long	len,
		const void *	data2,
		unsigned long	len2
	)

Calculate the MD5 hash accross 2 data chunks.

Parameters

buff	buffer to place the hash (16 bytes).
data	First data chunk to calculate.
len	Length of data.
data2	Second data chunk to calculate.
len2	Length of data2.

Definition at line 185 of file util.c.

Referenced by md5hmac(), and md5sum().

                                                                                                                     {
    MD5_CTX c;

    MD5_Init(&c);
    MD5_Update(&c, data, len);
    if (data2) {
        MD5_Update(&c, data2, len2);
    }
    MD5_Final(buff, &c);
}