fixed bug in verifying attestation message

verifier.c

@@ -113,10 +113,10 @@ int verifier_getissuer(char *buffer) {
                 ecdaa_hextobin(current, binbuf, ECDAA_ISSUER_PUBLIC_KEY_FP256BN_LENGTH);
                 ret = ecdaa_issuer_public_key_FP256BN_deserialize(&verifier.ipk, binbuf);
                 if (-1 == ret) {
-                    printf("verifier_getpublic: member public key is malformed!\n");
+                    printf("verifier_getpublic: issuer public key is malformed!\n");
                     ret = -1;
                 } else if (-2 == ret) {
-                    printf("verifier_getpublic: signature of member public key is invalid\n");
+                    printf("verifier_getpublic: signature of issuer public key is invalid\n");
                     ret = -1;
                 } else {
                     verifier.state = GOTISSUER;
@@ -182,7 +182,7 @@ int verifier_checkattest(char *buffer) {
     char *current = &buffer[7]; //"ATTEST "
 
     char msg[MAX_MSGSIZE];
-    strncpy(msg, buffer, MAX_MSGSIZE);
+    strncpy(msg, current, MAX_MSGSIZE);
     size_t msg_len = strlen(msg);
     current = &current[MAX_MSGSIZE];
 
@@ -207,14 +207,17 @@ int verifier_checkattest(char *buffer) {
     struct ecdaa_signature_FP256BN sig;
     int ret = ecdaa_signature_FP256BN_deserialize(&sig, binbuf, has_nym);
     if (0 != ret) {
-        printf("verifier_checkattest: error reading signature");
+        printf("verifier_checkattest: error reading signature\n");
         return -1;
     }
 
+    printf("verifier_checkattest: msg: %s, len: %lu\n",msg, msg_len);
+    printf("verifier_checkattest: bsn: %s, len: %lu\n",bsn, bsn_len);
+    printf("verifier_checkattest: sig: %s", current);
     ret = ecdaa_signature_FP256BN_verify(&sig, &verifier.ipk.gpk, &verifier.revocations, (uint8_t *) msg, msg_len,
                                          (uint8_t *) bsn, bsn_len);
-    if (0 == ret) {
+    if (0 != ret) {
-        printf("verifier_checkattest: signature not valid");
+        printf("verifier_checkattest: signature not valid\n");
         return -1;
     }