From 395fbcd0f090fc389f7c1e7ac2fc8bb58a5ea4d7 Mon Sep 17 00:00:00 2001 From: Peter Surda Date: Wed, 28 Aug 2019 13:21:44 +0200 Subject: [PATCH] Add intermediary tests - primitive serialisation (BN_bn2bin and ctypes) used in intermediary tests --- src/tests/test_blindsig.py | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/tests/test_blindsig.py b/src/tests/test_blindsig.py index ad44af98..b8d0248a 100644 --- a/src/tests/test_blindsig.py +++ b/src/tests/test_blindsig.py @@ -3,8 +3,10 @@ Test for ECC blind signatures """ import os import unittest +from ctypes import cast, c_char_p from pybitmessage.pyelliptic.eccblind import ECCBlind +from pybitmessage.pyelliptic.openssl import OpenSSL class TestBlindSig(unittest.TestCase): @@ -24,12 +26,27 @@ class TestBlindSig(unittest.TestCase): msg = os.urandom(64) msg_blinded = requester_obj.create_signing_request(point_r, msg) + # check + msg_blinded_str = OpenSSL.malloc(0, OpenSSL.BN_num_bytes(msg_blinded)) + OpenSSL.BN_bn2bin(msg_blinded, msg_blinded_str) + self.assertNotEqual(msg, cast(msg_blinded_str, c_char_p).value) + # (3) Signature Generation signature_blinded = signer_obj.blind_sign(msg_blinded) # (4) Extraction signature = requester_obj.unblind(signature_blinded) + # check + signature_blinded_str = OpenSSL.malloc(0, + OpenSSL.BN_num_bytes( + signature_blinded)) + signature_str = OpenSSL.malloc(0, OpenSSL.BN_num_bytes(signature[0])) + OpenSSL.BN_bn2bin(signature_blinded, signature_blinded_str) + OpenSSL.BN_bn2bin(signature[0], signature_str) + self.assertNotEqual(cast(signature_str, c_char_p).value, + cast(signature_blinded_str, c_char_p).value) + # (5) Verification verifier_obj = ECCBlind(pubkey=signer_obj.pubkey) self.assertTrue(verifier_obj.verify(msg, signature))