Differential D2409 Diff 6913 src/test/sigcache_tests.cpp

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src/test/sigcache_tests.cpp

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				// Copyright (c) 2012-2015 The Bitcoin Core developers
				// Copyright (c) 2019- The Bitcoin developers
				// Distributed under the MIT software license, see the accompanying
				// file COPYING or http://www.opensource.org/licenses/mit-license.php.
				// (based on key_tests.cpp)

				#include "script/sigcache.h"

				#include "base58.h"
				#include "dstencode.h"
				#include "key.h"
				#include "test/test_bitcoin.h"
				#include "utilstrencodings.h"

				#include <boost/test/unit_test.hpp>

				#include <string>
				#include <vector>

				static const std::string strSecret1 =
				"5HxWvvfubhXpYYpS3tJkw6fq9jE9j18THftkZjHHfmFiWtmAbrj";
				static const std::string strSecret1C =
				"Kwr371tjA9u2rFSMZjTNun2PXXP3WPZu2afRHTcta6KxEUdm1vEw";

				class TestCachingTransactionSignatureChecker {
				/**
				* Sigcache is only accessible via CachingTransactionSignatureChecker, which
				* requires a tx. So we make a dummy transaction to populate it.
				*/
				CDataStream stream;
				CTransaction dummyTx;
				PrecomputedTransactionData txdata;
				CachingTransactionSignatureChecker checker;

				public:
				TestCachingTransactionSignatureChecker()
				: stream(ParseHex("010000000122739e70fbee987a8be1788395a2f2e6ad18ccb7ff"
				"611cd798071539dde3c38e000000000151ffffffff0100000000"
				"00000000016a00000000"),
				SER_NETWORK, PROTOCOL_VERSION),
				dummyTx(deserialize, stream), txdata(dummyTx),
				checker(&dummyTx, 0, 0 * SATOSHI, true, txdata) {}

				inline bool VerifyAndStore(const std::vector<uint8_t> &vchSig,
				const CPubKey &pubkey, const uint256 &sighash) {
				return checker.VerifySignature(vchSig, pubkey, sighash);
				}

				inline bool IsCached(const std::vector<uint8_t> &vchSig,
				const CPubKey &pubkey, const uint256 &sighash) {
				return checker.IsCached(vchSig, pubkey, sighash);
				}
				};

				BOOST_FIXTURE_TEST_SUITE(sigcache_tests, BasicTestingSetup)

				BOOST_AUTO_TEST_CASE(test1) {
				TestCachingTransactionSignatureChecker checker;

				CBitcoinSecret bsecret1, bsecret1C;
				BOOST_CHECK(bsecret1.SetString(strSecret1));
				BOOST_CHECK(bsecret1C.SetString(strSecret1C));

				CKey key1 = bsecret1.GetKey();
				BOOST_CHECK(key1.IsCompressed() == false);
				CKey key1C = bsecret1C.GetKey();
				BOOST_CHECK(key1C.IsCompressed() == true);

				CPubKey pubkey1 = key1.GetPubKey();
				CPubKey pubkey1C = key1C.GetPubKey();

				for (int n = 0; n < 16; n++) {
				std::string strMsg = strprintf("Sigcache test1 %i: xx", n);
				uint256 hashMsg = Hash(strMsg.begin(), strMsg.end());
				uint256 hashMsg2 = Hash(strMsg.begin() + 1, strMsg.end());

				std::vector<uint8_t> sig;
				BOOST_CHECK(key1.SignECDSA(hashMsg, sig));
				std::vector<uint8_t> sig2;
				BOOST_CHECK(key1.SignECDSA(hashMsg2, sig2));

				// cross-check
				BOOST_CHECK(!checker.VerifyAndStore(sig2, pubkey1, hashMsg));
				BOOST_CHECK(!checker.VerifyAndStore(sig, pubkey1, hashMsg2));
				// that should not have put them in cache...
				BOOST_CHECK(!checker.IsCached(sig2, pubkey1, hashMsg));
				BOOST_CHECK(!checker.IsCached(sig, pubkey1, hashMsg2));

				// check that it's not in cache at start
				BOOST_CHECK(!checker.IsCached(sig, pubkey1, hashMsg));
				BOOST_CHECK(!checker.IsCached(sig2, pubkey1, hashMsg2));
				// Insert into cache
				BOOST_CHECK(checker.VerifyAndStore(sig, pubkey1, hashMsg));
				BOOST_CHECK(checker.VerifyAndStore(sig2, pubkey1, hashMsg2));
				// check that it's in
				BOOST_CHECK(checker.IsCached(sig, pubkey1, hashMsg));
				BOOST_CHECK(checker.IsCached(sig2, pubkey1, hashMsg2));
				// check that different signature hits different entry
				BOOST_CHECK(!checker.IsCached(sig2, pubkey1, hashMsg));
				// check that compressed pubkey hits different entry
				BOOST_CHECK(!checker.IsCached(sig, pubkey1C, hashMsg));
				// check that different message hits different entry
				BOOST_CHECK(!checker.IsCached(sig, pubkey1, hashMsg2));

				// compressed key is for same privkey, so verifying works:
				BOOST_CHECK(checker.VerifyAndStore(sig, pubkey1C, hashMsg));
				// now we should get a hit
				BOOST_CHECK(checker.IsCached(sig, pubkey1C, hashMsg));
				}
				}

				BOOST_AUTO_TEST_SUITE_END()