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OP_EVAL implementation

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OP_EVAL is a new opcode that evaluates an item on the stack as a script.
It enables a new type of bitcoin address that needs an arbitrarily
complex script to redeem.
This commit is contained in:
Gavin Andresen
2011-10-03 13:05:43 -04:00
parent cc40ba2151
commit e679ec969c
15 changed files with 1165 additions and 582 deletions
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40
src/test/script_tests.cpp
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@@ -7,7 +7,7 @@
using namespace std;
extern uint256 SignatureHash(CScript scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType);
extern bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, int nHashType);
extern bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, int& nSigOps, int nHashType);
extern bool VerifySignature(const CTransaction& txFrom, const CTransaction& txTo, unsigned int nIn, int nHashType);
BOOST_AUTO_TEST_SUITE(script_tests)
@@ -21,19 +21,21 @@ BOOST_AUTO_TEST_CASE(script_PushData)
static const unsigned char pushdata2[] = { OP_PUSHDATA2, 1, 0, 0x5a };
static const unsigned char pushdata4[] = { OP_PUSHDATA4, 1, 0, 0, 0, 0x5a };
int nUnused = 0;
vector<vector<unsigned char> > directStack;
BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), CTransaction(), 0, 0));
BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), CTransaction(), 0, 0, nUnused));
vector<vector<unsigned char> > pushdata1Stack;
BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), CTransaction(), 0, 0));
BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), CTransaction(), 0, 0, nUnused));
BOOST_CHECK(pushdata1Stack == directStack);
vector<vector<unsigned char> > pushdata2Stack;
BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), CTransaction(), 0, 0));
BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), CTransaction(), 0, 0, nUnused));
BOOST_CHECK(pushdata2Stack == directStack);
vector<vector<unsigned char> > pushdata4Stack;
BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), CTransaction(), 0, 0));
BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), CTransaction(), 0, 0, nUnused));
BOOST_CHECK(pushdata4Stack == directStack);
}
@@ -71,6 +73,7 @@ sign_multisig(CScript scriptPubKey, CKey key, CTransaction transaction)
BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12)
{
int nUnused = 0;
CKey key1, key2, key3;
key1.MakeNewKey();
key2.MakeNewKey();
@@ -91,19 +94,20 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12)
txTo12.vout[0].nValue = 1;
CScript goodsig1 = sign_multisig(scriptPubKey12, key1, txTo12);
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, txTo12, 0, 0));
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, txTo12, 0, nUnused, 0));
txTo12.vout[0].nValue = 2;
BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, txTo12, 0, 0));
BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, txTo12, 0, nUnused, 0));
CScript goodsig2 = sign_multisig(scriptPubKey12, key2, txTo12);
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, txTo12, 0, 0));
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, txTo12, 0, nUnused, 0));
CScript badsig1 = sign_multisig(scriptPubKey12, key3, txTo12);
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, txTo12, 0, 0));
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, txTo12, 0, nUnused, 0));
}
BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
{
int nUnused = 0;
CKey key1, key2, key3, key4;
key1.MakeNewKey();
key2.MakeNewKey();
@@ -127,46 +131,46 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
std::vector<CKey> keys;
keys.push_back(key1); keys.push_back(key2);
CScript goodsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key1); keys.push_back(key3);
CScript goodsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key2); keys.push_back(key3);
CScript goodsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key2); keys.push_back(key2); // Can't re-use sig
CScript badsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key2); keys.push_back(key1); // sigs must be in correct order
CScript badsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key3); keys.push_back(key2); // sigs must be in correct order
CScript badsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key4); keys.push_back(key2); // sigs must match pubkeys
CScript badsig4 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear();
keys.push_back(key1); keys.push_back(key4); // sigs must match pubkeys
CScript badsig5 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, txTo23, 0, nUnused, 0));
keys.clear(); // Must have signatures
CScript badsig6 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, txTo23, 0, 0));
BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, txTo23, 0, nUnused, 0));
}