aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/script.h2
-rw-r--r--src/test/DoS_tests.cpp87
2 files changed, 1 insertions, 88 deletions
diff --git a/src/script.h b/src/script.h
index ea988f0e40..7ab471f6e6 100644
--- a/src/script.h
+++ b/src/script.h
@@ -20,7 +20,7 @@
class CCoins;
class CKeyStore;
class CTransaction;
-class CMutableTransaction;
+struct CMutableTransaction;
static const unsigned int MAX_SCRIPT_ELEMENT_SIZE = 520; // bytes
static const unsigned int MAX_OP_RETURN_RELAY = 40; // bytes
diff --git a/src/test/DoS_tests.cpp b/src/test/DoS_tests.cpp
index d512053051..5e17555e7a 100644
--- a/src/test/DoS_tests.cpp
+++ b/src/test/DoS_tests.cpp
@@ -231,91 +231,4 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans)
BOOST_CHECK(mapOrphanTransactionsByPrev.empty());
}
-BOOST_AUTO_TEST_CASE(DoS_checkSig)
-{
- // Test signature caching code (see key.cpp Verify() methods)
-
- CKey key;
- key.MakeNewKey(true);
- CBasicKeyStore keystore;
- keystore.AddKey(key);
- unsigned int flags = SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC;
-
- // 100 orphan transactions:
- static const int NPREV=100;
- CMutableTransaction orphans[NPREV];
- for (int i = 0; i < NPREV; i++)
- {
- CMutableTransaction& tx = orphans[i];
- tx.vin.resize(1);
- tx.vin[0].prevout.n = 0;
- tx.vin[0].prevout.hash = GetRandHash();
- tx.vin[0].scriptSig << OP_1;
- tx.vout.resize(1);
- tx.vout[0].nValue = 1*CENT;
- tx.vout[0].scriptPubKey.SetDestination(key.GetPubKey().GetID());
-
- AddOrphanTx(tx);
- }
-
- // Create a transaction that depends on orphans:
- CMutableTransaction tx;
- tx.vout.resize(1);
- tx.vout[0].nValue = 1*CENT;
- tx.vout[0].scriptPubKey.SetDestination(key.GetPubKey().GetID());
- tx.vin.resize(NPREV);
- for (unsigned int j = 0; j < tx.vin.size(); j++)
- {
- tx.vin[j].prevout.n = 0;
- tx.vin[j].prevout.hash = orphans[j].GetHash();
- }
- // Creating signatures primes the cache:
- boost::posix_time::ptime mst1 = boost::posix_time::microsec_clock::local_time();
- for (unsigned int j = 0; j < tx.vin.size(); j++)
- BOOST_CHECK(SignSignature(keystore, orphans[j], tx, j));
- boost::posix_time::ptime mst2 = boost::posix_time::microsec_clock::local_time();
- boost::posix_time::time_duration msdiff = mst2 - mst1;
- long nOneValidate = msdiff.total_milliseconds();
- if (fDebug) printf("DoS_Checksig sign: %ld\n", nOneValidate);
-
- // ... now validating repeatedly should be quick:
- // 2.8GHz machine, -g build: Sign takes ~760ms,
- // uncached Verify takes ~250ms, cached Verify takes ~50ms
- // (for 100 single-signature inputs)
- mst1 = boost::posix_time::microsec_clock::local_time();
- for (unsigned int i = 0; i < 5; i++)
- for (unsigned int j = 0; j < tx.vin.size(); j++)
- BOOST_CHECK(VerifySignature(CCoins(orphans[j], MEMPOOL_HEIGHT), tx, j, flags, SIGHASH_ALL));
- mst2 = boost::posix_time::microsec_clock::local_time();
- msdiff = mst2 - mst1;
- long nManyValidate = msdiff.total_milliseconds();
- if (fDebug) printf("DoS_Checksig five: %ld\n", nManyValidate);
-
- BOOST_CHECK_MESSAGE(nManyValidate < nOneValidate, "Signature cache timing failed");
-
- // Empty a signature, validation should fail:
- CScript save = tx.vin[0].scriptSig;
- tx.vin[0].scriptSig = CScript();
- BOOST_CHECK(!VerifySignature(CCoins(orphans[0], MEMPOOL_HEIGHT), tx, 0, flags, SIGHASH_ALL));
- tx.vin[0].scriptSig = save;
-
- // Swap signatures, validation should fail:
- std::swap(tx.vin[0].scriptSig, tx.vin[1].scriptSig);
- BOOST_CHECK(!VerifySignature(CCoins(orphans[0], MEMPOOL_HEIGHT), tx, 0, flags, SIGHASH_ALL));
- BOOST_CHECK(!VerifySignature(CCoins(orphans[1], MEMPOOL_HEIGHT), tx, 1, flags, SIGHASH_ALL));
- std::swap(tx.vin[0].scriptSig, tx.vin[1].scriptSig);
-
- // Exercise -maxsigcachesize code:
- mapArgs["-maxsigcachesize"] = "10";
- // Generate a new, different signature for vin[0] to trigger cache clear:
- CScript oldSig = tx.vin[0].scriptSig;
- BOOST_CHECK(SignSignature(keystore, orphans[0], tx, 0));
- BOOST_CHECK(tx.vin[0].scriptSig != oldSig);
- for (unsigned int j = 0; j < tx.vin.size(); j++)
- BOOST_CHECK(VerifySignature(CCoins(orphans[j], MEMPOOL_HEIGHT), tx, j, flags, SIGHASH_ALL));
- mapArgs.erase("-maxsigcachesize");
-
- LimitOrphanTxSize(0);
-}
-
BOOST_AUTO_TEST_SUITE_END()