309 lines
10 KiB
C++
309 lines
10 KiB
C++
// Copyright (c) 2011-2013 The Bitcoin Core developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "key.h"
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#include "keystore.h"
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#include "main.h"
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#include "script/script.h"
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#include "script/interpreter.h"
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#include "script/sign.h"
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#include "uint256.h"
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#ifdef ENABLE_WALLET
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#include "wallet_ismine.h"
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#endif
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#include <boost/assign/std/vector.hpp>
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#include <boost/foreach.hpp>
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#include <boost/test/unit_test.hpp>
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using namespace std;
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using namespace boost::assign;
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typedef vector<unsigned char> valtype;
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BOOST_AUTO_TEST_SUITE(multisig_tests)
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CScript
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sign_multisig(CScript scriptPubKey, vector<CKey> keys, CTransaction transaction, int whichIn)
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{
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uint256 hash = SignatureHash(scriptPubKey, transaction, whichIn, SIGHASH_ALL);
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CScript result;
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result << OP_0; // CHECKMULTISIG bug workaround
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BOOST_FOREACH(const CKey &key, keys)
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{
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vector<unsigned char> vchSig;
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BOOST_CHECK(key.Sign(hash, vchSig));
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vchSig.push_back((unsigned char)SIGHASH_ALL);
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result << vchSig;
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}
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return result;
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}
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BOOST_AUTO_TEST_CASE(multisig_verify)
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{
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unsigned int flags = SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC;
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CKey key[4];
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for (int i = 0; i < 4; i++)
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key[i].MakeNewKey(true);
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CScript a_and_b;
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a_and_b << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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CScript a_or_b;
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a_or_b << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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CScript escrow;
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escrow << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << key[2].GetPubKey() << OP_3 << OP_CHECKMULTISIG;
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CMutableTransaction txFrom; // Funding transaction
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txFrom.vout.resize(3);
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txFrom.vout[0].scriptPubKey = a_and_b;
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txFrom.vout[1].scriptPubKey = a_or_b;
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txFrom.vout[2].scriptPubKey = escrow;
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CMutableTransaction txTo[3]; // Spending transaction
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for (int i = 0; i < 3; i++)
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{
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txTo[i].vin.resize(1);
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txTo[i].vout.resize(1);
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txTo[i].vin[0].prevout.n = i;
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txTo[i].vin[0].prevout.hash = txFrom.GetHash();
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txTo[i].vout[0].nValue = 1;
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}
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vector<CKey> keys;
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CScript s;
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// Test a AND b:
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keys.clear();
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keys += key[0],key[1]; // magic operator+= from boost.assign
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s = sign_multisig(a_and_b, keys, txTo[0], 0);
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BOOST_CHECK(VerifyScript(s, a_and_b, txTo[0], 0, flags));
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for (int i = 0; i < 4; i++)
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{
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keys.clear();
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keys += key[i];
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s = sign_multisig(a_and_b, keys, txTo[0], 0);
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BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, txTo[0], 0, flags), strprintf("a&b 1: %d", i));
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keys.clear();
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keys += key[1],key[i];
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s = sign_multisig(a_and_b, keys, txTo[0], 0);
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BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, txTo[0], 0, flags), strprintf("a&b 2: %d", i));
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}
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// Test a OR b:
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for (int i = 0; i < 4; i++)
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{
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keys.clear();
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keys += key[i];
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s = sign_multisig(a_or_b, keys, txTo[1], 0);
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if (i == 0 || i == 1)
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BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, txTo[1], 0, flags), strprintf("a|b: %d", i));
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else
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BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, txTo[1], 0, flags), strprintf("a|b: %d", i));
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}
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s.clear();
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s << OP_0 << OP_0;
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BOOST_CHECK(!VerifyScript(s, a_or_b, txTo[1], 0, flags));
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s.clear();
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s << OP_0 << OP_1;
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BOOST_CHECK(!VerifyScript(s, a_or_b, txTo[1], 0, flags));
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for (int i = 0; i < 4; i++)
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for (int j = 0; j < 4; j++)
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{
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keys.clear();
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keys += key[i],key[j];
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s = sign_multisig(escrow, keys, txTo[2], 0);
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if (i < j && i < 3 && j < 3)
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BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, txTo[2], 0, flags), strprintf("escrow 1: %d %d", i, j));
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else
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BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, txTo[2], 0, flags), strprintf("escrow 2: %d %d", i, j));
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}
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}
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BOOST_AUTO_TEST_CASE(multisig_IsStandard)
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{
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CKey key[4];
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for (int i = 0; i < 4; i++)
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key[i].MakeNewKey(true);
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txnouttype whichType;
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CScript a_and_b;
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a_and_b << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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BOOST_CHECK(::IsStandard(a_and_b, whichType));
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CScript a_or_b;
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a_or_b << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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BOOST_CHECK(::IsStandard(a_or_b, whichType));
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CScript escrow;
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escrow << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << key[2].GetPubKey() << OP_3 << OP_CHECKMULTISIG;
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BOOST_CHECK(::IsStandard(escrow, whichType));
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CScript one_of_four;
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one_of_four << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << key[2].GetPubKey() << key[3].GetPubKey() << OP_4 << OP_CHECKMULTISIG;
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BOOST_CHECK(!::IsStandard(one_of_four, whichType));
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CScript malformed[6];
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malformed[0] << OP_3 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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malformed[1] << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << OP_3 << OP_CHECKMULTISIG;
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malformed[2] << OP_0 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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malformed[3] << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << OP_0 << OP_CHECKMULTISIG;
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malformed[4] << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << OP_CHECKMULTISIG;
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malformed[5] << OP_1 << key[0].GetPubKey() << key[1].GetPubKey();
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for (int i = 0; i < 6; i++)
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BOOST_CHECK(!::IsStandard(malformed[i], whichType));
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}
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BOOST_AUTO_TEST_CASE(multisig_Solver1)
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{
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// Tests Solver() that returns lists of keys that are
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// required to satisfy a ScriptPubKey
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//
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// Also tests IsMine() and ExtractDestination()
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//
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// Note: ExtractDestination for the multisignature transactions
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// always returns false for this release, even if you have
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// one key that would satisfy an (a|b) or 2-of-3 keys needed
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// to spend an escrow transaction.
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//
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CBasicKeyStore keystore, emptykeystore, partialkeystore;
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CKey key[3];
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CTxDestination keyaddr[3];
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for (int i = 0; i < 3; i++)
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{
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key[i].MakeNewKey(true);
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keystore.AddKey(key[i]);
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keyaddr[i] = key[i].GetPubKey().GetID();
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}
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partialkeystore.AddKey(key[0]);
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{
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vector<valtype> solutions;
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txnouttype whichType;
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CScript s;
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s << key[0].GetPubKey() << OP_CHECKSIG;
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BOOST_CHECK(Solver(s, whichType, solutions));
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BOOST_CHECK(solutions.size() == 1);
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CTxDestination addr;
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BOOST_CHECK(ExtractDestination(s, addr));
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BOOST_CHECK(addr == keyaddr[0]);
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#ifdef ENABLE_WALLET
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BOOST_CHECK(IsMine(keystore, s));
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BOOST_CHECK(!IsMine(emptykeystore, s));
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#endif
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}
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{
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vector<valtype> solutions;
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txnouttype whichType;
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CScript s;
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s << OP_DUP << OP_HASH160 << key[0].GetPubKey().GetID() << OP_EQUALVERIFY << OP_CHECKSIG;
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BOOST_CHECK(Solver(s, whichType, solutions));
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BOOST_CHECK(solutions.size() == 1);
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CTxDestination addr;
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BOOST_CHECK(ExtractDestination(s, addr));
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BOOST_CHECK(addr == keyaddr[0]);
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#ifdef ENABLE_WALLET
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BOOST_CHECK(IsMine(keystore, s));
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BOOST_CHECK(!IsMine(emptykeystore, s));
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#endif
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}
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{
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vector<valtype> solutions;
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txnouttype whichType;
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CScript s;
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s << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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BOOST_CHECK(Solver(s, whichType, solutions));
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BOOST_CHECK_EQUAL(solutions.size(), 4U);
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CTxDestination addr;
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BOOST_CHECK(!ExtractDestination(s, addr));
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#ifdef ENABLE_WALLET
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BOOST_CHECK(IsMine(keystore, s));
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BOOST_CHECK(!IsMine(emptykeystore, s));
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BOOST_CHECK(!IsMine(partialkeystore, s));
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#endif
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}
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{
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vector<valtype> solutions;
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txnouttype whichType;
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CScript s;
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s << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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BOOST_CHECK(Solver(s, whichType, solutions));
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BOOST_CHECK_EQUAL(solutions.size(), 4U);
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vector<CTxDestination> addrs;
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int nRequired;
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BOOST_CHECK(ExtractDestinations(s, whichType, addrs, nRequired));
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BOOST_CHECK(addrs[0] == keyaddr[0]);
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BOOST_CHECK(addrs[1] == keyaddr[1]);
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BOOST_CHECK(nRequired == 1);
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#ifdef ENABLE_WALLET
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BOOST_CHECK(IsMine(keystore, s));
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BOOST_CHECK(!IsMine(emptykeystore, s));
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BOOST_CHECK(!IsMine(partialkeystore, s));
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#endif
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}
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{
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vector<valtype> solutions;
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txnouttype whichType;
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CScript s;
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s << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << key[2].GetPubKey() << OP_3 << OP_CHECKMULTISIG;
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BOOST_CHECK(Solver(s, whichType, solutions));
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BOOST_CHECK(solutions.size() == 5);
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}
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}
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BOOST_AUTO_TEST_CASE(multisig_Sign)
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{
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// Test SignSignature() (and therefore the version of Solver() that signs transactions)
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CBasicKeyStore keystore;
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CKey key[4];
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for (int i = 0; i < 4; i++)
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{
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key[i].MakeNewKey(true);
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keystore.AddKey(key[i]);
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}
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CScript a_and_b;
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a_and_b << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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CScript a_or_b;
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a_or_b << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << OP_2 << OP_CHECKMULTISIG;
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CScript escrow;
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escrow << OP_2 << key[0].GetPubKey() << key[1].GetPubKey() << key[2].GetPubKey() << OP_3 << OP_CHECKMULTISIG;
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CMutableTransaction txFrom; // Funding transaction
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txFrom.vout.resize(3);
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txFrom.vout[0].scriptPubKey = a_and_b;
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txFrom.vout[1].scriptPubKey = a_or_b;
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txFrom.vout[2].scriptPubKey = escrow;
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CMutableTransaction txTo[3]; // Spending transaction
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for (int i = 0; i < 3; i++)
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{
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txTo[i].vin.resize(1);
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txTo[i].vout.resize(1);
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txTo[i].vin[0].prevout.n = i;
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txTo[i].vin[0].prevout.hash = txFrom.GetHash();
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txTo[i].vout[0].nValue = 1;
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}
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for (int i = 0; i < 3; i++)
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{
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BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0), strprintf("SignSignature %d", i));
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}
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}
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BOOST_AUTO_TEST_SUITE_END()
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