src/common/dpp.c

4593 	unsigned char *signature = NULL;
4618 		wpa_printf(MSG_DEBUG, "DPP: Unknown signature algorithm");
4718 	signature = os_malloc(signature_len);
4719 	if (!signature)
4721 	if (EVP_DigestSignFinal(md_ctx, signature, &signature_len) != 1) {
4726 	wpa_hexdump(MSG_DEBUG, "DPP: signedConnector ECDSA signature (DER)",
4727 		    signature, signature_len);
4729 	p = signature;
4734 	if (dpp_bn2bin_pad(r, signature, curve->prime_len) < 0 ||
4735 	    dpp_bn2bin_pad(s, signature + curve->prime_len,
4739 	wpa_hexdump(MSG_DEBUG, "DPP: signedConnector ECDSA signature (raw r,s)",
4740 		    signature, signature_len);
4741 	signed3 = (char *) base64_url_encode(signature, signature_len,
4785 	os_free(signature);
5562 	unsigned char *prot_hdr = NULL, *signature = NULL;
5641 	signature = base64_url_decode((const unsigned char *) pos,
5643 	if (!signature) {
5645 			   "DPP: Failed to base64url decode signedConnector signature");
5649 	wpa_hexdump(MSG_DEBUG, "DPP: signedConnector - signature",
5650 		    signature, signature_len);
5659 			   "DPP: Unexpected signedConnector signature length (%d)",
5665 	/* JWS Signature encodes the signature (r,s) as two octet strings. Need
5667 	r = BN_bin2bn(signature, signature_len / 2, NULL);
5668 	s = BN_bin2bn(signature + signature_len / 2, signature_len / 2, NULL);
5677 		wpa_printf(MSG_DEBUG, "DPP: Could not DER encode signature");
5680 	wpa_hexdump(MSG_DEBUG, "DPP: DER encoded signature", der, der_len);
5712 	os_free(signature);
8215 	unsigned char *signature = NULL;
8232 	wpa_printf(MSG_DEBUG, "DPP: Original base64url encoded signature: %s",
8234 	signature = base64_url_decode((const unsigned char *) pos,
8236 	if (!signature || signature_len == 0)
8238 	wpa_hexdump(MSG_DEBUG, "DPP: Original Connector signature",
8239 		    signature, signature_len);
8240 	signature[signature_len - 1] ^= 0x01;
8241 	wpa_hexdump(MSG_DEBUG, "DPP: Corrupted Connector signature",
8242 		    signature, signature_len);
8243 	signed3 = (char *) base64_url_encode(signature, signature_len,
8249 	wpa_printf(MSG_DEBUG, "DPP: Corrupted base64url encoded signature: %s",
8253 	os_free(signature);