netresolv/dst/hmac_link.c

65  *     priv_key    key to use for signing.
82 	HMAC_Key *key;
96 	key = (HMAC_Key *) d_key->dk_KEY_struct;
100 		MD5Update(ctx, key->hk_ipad, HMAC_LEN);
113 		MD5Update(ctx, key->hk_opad, HMAC_LEN);
136  *     dkey	key to use for verify.
151 	HMAC_Key *key;
164 	key = (HMAC_Key *) d_key->dk_KEY_struct;
167 		MD5Update(ctx, key->hk_ipad, HMAC_LEN);
174 		if (signature == NULL || key == NULL || sig_len != MD5_LEN)
180 		MD5Update(ctx, key->hk_opad, HMAC_LEN);
199  *     Converts key from raw data to an HMAC Key
202  *     hkey	the HMAC key to be filled in
203  *     key	the key in raw format
204  *     keylen	the length of the key
210 dst_buffer_to_hmac_md5(DST_KEY *dkey, const u_char *key, const int keylen)
218 	if (dkey == NULL || key == NULL || keylen < 0)
227 	/* if key is longer than HMAC_LEN bytes reset it to key=MD5(key) */
230 		MD5Update(&ctx, key, (unsigned int)keylen);
233 		key = tk;
236 	/* start out by storing key in pads */
237 	memcpy(hkey->hk_ipad, key, local_keylen);
238 	memcpy(hkey->hk_opad, key, local_keylen);
240 	/* XOR key with hk_ipad and opad values */
271 	u_char key[HMAC_LEN];
295 		key[key_len] = hkey->hk_ipad[key_len] ^ HMAC_IPAD;
297 		if (key[key_len] != 0)
301 	len = b64_ntop(key, key_len, bp, BUF_LEFT);
318  *     Converts contents of a key file into an HMAC key.
320  *     hkey    structure to put key into
321  *     buff       buffer containing the encoded key
324  *     n >= 0 Foot print of the key converted
333 	u_char key[HMAC_LEN+1];	/* b64_pton needs more than 64 bytes do decode
345 	memset(key, 0, sizeof(key));
359 	key_len = b64_pton((char *)tmp, key, HMAC_LEN+1);	/*%< see above */
362 	if (dst_buffer_to_hmac_md5(dkey, key, key_len) < 0) {
370  *         function to extract hmac key from DST_KEY structure
372  *      in_key:  HMAC-MD5 key
419 dst_hmac_md5_free_key_structure(void *key)
421 	HMAC_Key *hkey = key;
429  *     Creates a HMAC key of size size with a maximum size of 63 bytes
430  *     generating a HMAC key larger than 63 bytes makes no sense as that key
436 dst_hmac_md5_generate_key(DST_KEY *key, const int nothing)