fixed pgp_getkeybyfpr

dist/src/lib/keyring.c

@@ -1015,11 +1015,10 @@ pgp_getkeybyfpr(pgp_io_t *io, const pgp_keyring_t *keyring,
                 unsigned *from, pgp_pubkey_t **pubkey)
 {
 
-    pgp_fingerprint_t *kfp = &keyring->keys[*from].sigfingerprint;
-
 	for ( ; keyring && *from < keyring->keyc; *from += 1) {
+        pgp_fingerprint_t *kfp = &keyring->keys[*from].sigfingerprint;
 		if (kfp->length == length &&
-            memcmp(kfp, fpr, length) == 0) {
+            memcmp(kfp->fingerprint, fpr, length) == 0) {
 			if (pubkey) {
 				*pubkey = &keyring->keys[*from].key.pubkey;
 			}