memcpy(into,from,sizeof(crypto_digest_t));
}
-/** Compute the HMAC-SHA-1 of the <b>msg_len</b> bytes in <b>msg</b>, using
- * the <b>key</b> of length <b>key_len</b>. Store the DIGEST_LEN-byte result
- * in <b>hmac_out</b>.
- */
-void
-crypto_hmac_sha1(char *hmac_out,
- const char *key, size_t key_len,
- const char *msg, size_t msg_len)
-{
- tor_assert(key_len < INT_MAX);
- tor_assert(msg_len < INT_MAX);
- HMAC(EVP_sha1(), key, (int)key_len, (unsigned char*)msg, (int)msg_len,
- (unsigned char*)hmac_out, NULL);
-}
-
+ /** Given a list of strings in <b>lst</b>, set the <b>len_out</b>-byte digest
+ * at <b>digest_out</b> to the hash of the concatenation of those strings,
+ * plus the optional string <b>append</b>, computed with the algorithm
+ * <b>alg</b>.
+ * <b>out_len</b> must be \<= DIGEST256_LEN. */
+ void
+ crypto_digest_smartlist(char *digest_out, size_t len_out,
+ const smartlist_t *lst, const char *append,
+ digest_algorithm_t alg)
+ {
+ crypto_digest_t *d;
+ if (alg == DIGEST_SHA1)
+ d = crypto_digest_new();
+ else
+ d = crypto_digest256_new(alg);
+ SMARTLIST_FOREACH(lst, const char *, cp,
+ crypto_digest_add_bytes(d, cp, strlen(cp)));
+ if (append)
+ crypto_digest_add_bytes(d, append, strlen(append));
+ crypto_digest_get_digest(d, digest_out, len_out);
+ crypto_digest_free(d);
+ }
+
/** Compute the HMAC-SHA-256 of the <b>msg_len</b> bytes in <b>msg</b>, using
* the <b>key</b> of length <b>key_len</b>. Store the DIGEST256_LEN-byte
* result in <b>hmac_out</b>.