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Differential D1580 Diff 4379 src/test/sigencoding_tests.cpp

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src/test/sigencoding_tests.cpp

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BOOST_FIXTURE_TEST_SUITE(sigencoding_tests, BasicTestingSetup) BOOST_FIXTURE_TEST_SUITE(sigencoding_tests, BasicTestingSetup)
static valtype SignatureWithHashType(valtype vchSig, SigHashType sigHash) { static valtype SignatureWithHashType(valtype vchSig, SigHashType sigHash) {
vchSig.push_back(static_cast<uint8_t>(sigHash.getRawSigHashType())); vchSig.push_back(static_cast<uint8_t>(sigHash.getRawSigHashType()));
return vchSig; return vchSig;
} }
static void
CheckSignatureErrorForAllSigHashType(const valtype &vchSig, uint32_t flags,
const ScriptError expected_error) {
ScriptError err = SCRIPT_ERR_OK;
BOOST_CHECK(!CheckDataSignatureEncoding(vchSig, flags, &err));
BOOST_CHECK_EQUAL(err, expected_error);
for (int i = 0; i <= 0xff; i++) {
valtype sig = SignatureWithHashType(vchSig, SigHashType(i));
BOOST_CHECK(!CheckTransactionSignatureEncoding(sig, flags, &err));
BOOST_CHECK_EQUAL(err, expected_error);
}
}
static void CheckSignatureEncodingWithSigHashType(const valtype &vchSig, static void CheckSignatureEncodingWithSigHashType(const valtype &vchSig,
uint32_t flags) { uint32_t flags) {
ScriptError err = SCRIPT_ERR_OK; ScriptError err = SCRIPT_ERR_OK;
BOOST_CHECK(CheckDataSignatureEncoding(vchSig, flags, &err)); BOOST_CHECK(CheckDataSignatureEncoding(vchSig, flags, &err));
const bool hasForkId = (flags & SCRIPT_ENABLE_SIGHASH_FORKID) != 0; const bool hasForkId = (flags & SCRIPT_ENABLE_SIGHASH_FORKID) != 0;
const bool hasStrictEnc = (flags & SCRIPT_VERIFY_STRICTENC) != 0; const bool hasStrictEnc = (flags & SCRIPT_VERIFY_STRICTENC) != 0;
▲ Show 20 Lines • Show All 114 Lines • ▼ Show 20 Lines std::vector<valtype> nonParsableSigs{
// Invalid R and S sizes. // Invalid R and S sizes.
{0x30, 0x06, 0x02, 0x00, 0x01, 0x02, 0x01, 0x01}, {0x30, 0x06, 0x02, 0x00, 0x01, 0x02, 0x01, 0x01},
{0x30, 0x06, 0x02, 0x02, 0x01, 0x02, 0x01, 0x01}, {0x30, 0x06, 0x02, 0x02, 0x01, 0x02, 0x01, 0x01},
{0x30, 0x06, 0x02, 0x01, 0x01, 0x02, 0x00, 0x01}, {0x30, 0x06, 0x02, 0x01, 0x01, 0x02, 0x00, 0x01},
{0x30, 0x06, 0x02, 0x01, 0x01, 0x02, 0x02, 0x01}, {0x30, 0x06, 0x02, 0x01, 0x01, 0x02, 0x02, 0x01},
// Invalid R and S types. // Invalid R and S types.
{0x30, 0x06, 0x42, 0x01, 0x01, 0x02, 0x01, 0x01}, {0x30, 0x06, 0x42, 0x01, 0x01, 0x02, 0x01, 0x01},
{0x30, 0x06, 0x02, 0x01, 0x01, 0x42, 0x01, 0x01}, {0x30, 0x06, 0x02, 0x01, 0x01, 0x42, 0x01, 0x01},
// S out of bounds.
{0x30, 0x06, 0x02, 0x01, 0x01, 0x02, 0x02, 0x00},
// Too long. // Too long.
{0x30, 0x47, 0x02, 0x21, 0x00, 0x8e, 0x45, 0x16, 0xda, 0x72, 0x53, {0x30, 0x47, 0x02, 0x21, 0x00, 0x8e, 0x45, 0x16, 0xda, 0x72, 0x53,
0xcf, 0x06, 0x8e, 0xff, 0xec, 0x6b, 0x95, 0xc4, 0x12, 0x21, 0xc0, 0xcf, 0x06, 0x8e, 0xff, 0xec, 0x6b, 0x95, 0xc4, 0x12, 0x21, 0xc0,
0xcf, 0x3a, 0x8e, 0x6c, 0xcb, 0x8c, 0xbf, 0x17, 0x25, 0xb5, 0x62, 0xcf, 0x3a, 0x8e, 0x6c, 0xcb, 0x8c, 0xbf, 0x17, 0x25, 0xb5, 0x62,
0xe9, 0xaf, 0xde, 0x2c, 0x02, 0x22, 0x00, 0xab, 0x1e, 0x3d, 0x00, 0xe9, 0xaf, 0xde, 0x2c, 0x02, 0x22, 0x00, 0xab, 0x1e, 0x3d, 0x00,
0xa7, 0x3d, 0x67, 0xe3, 0x20, 0x45, 0xa2, 0x0e, 0x0b, 0x99, 0x9e, 0xa7, 0x3d, 0x67, 0xe3, 0x20, 0x45, 0xa2, 0x0e, 0x0b, 0x99, 0x9e,
0x04, 0x99, 0x78, 0xea, 0x8d, 0x6e, 0xe5, 0x48, 0x0d, 0x48, 0x5f, 0x04, 0x99, 0x78, 0xea, 0x8d, 0x6e, 0xe5, 0x48, 0x0d, 0x48, 0x5f,
0xcf, 0x2c, 0xe0, 0xd0, 0x3b, 0x2e, 0xf0}, 0xcf, 0x2c, 0xe0, 0xd0, 0x3b, 0x2e, 0xf0},
}; };
// If we add many more flags, this loop can get too expensive, but we can // If we add many more flags, this loop can get too expensive, but we can
// rewrite in the future to randomly pick a set of flags to evaluate. // rewrite in the future to randomly pick a set of flags to evaluate.
for (uint32_t flags = 0; flags < (1U << 17); flags++) { for (uint32_t flags = 0; flags < (1U << 17); flags++) {
ScriptError err = SCRIPT_ERR_OK; ScriptError err = SCRIPT_ERR_OK;
// Empty sig is always valid. // Empty sig is always valid.
BOOST_CHECK(CheckDataSignatureEncoding({}, flags, &err)); BOOST_CHECK(CheckDataSignatureEncoding({}, flags, &err));
BOOST_CHECK(CheckTransactionSignatureEncoding({}, flags, &err)); BOOST_CHECK(CheckTransactionSignatureEncoding({}, flags, &err));
// Signature are valid as long as the forkid flag is correct. // Signature are valid as long as the forkid flag is correct.
CheckSignatureEncodingWithSigHashType(minimalSig, flags); CheckSignatureEncodingWithSigHashType(minimalSig, flags);
if (flags & SCRIPT_VERIFY_LOW_S) { if (flags & SCRIPT_VERIFY_LOW_S) {
// If we do enforce low S, then high S sigs are rejected. // If we do enforce low S, then high S sigs are rejected.
CheckSignatureErrorForAllSigHashType(highSSig, flags, BOOST_CHECK(!CheckDataSignatureEncoding(highSSig, flags, &err));
SCRIPT_ERR_SIG_HIGH_S); BOOST_CHECK_EQUAL(err, SCRIPT_ERR_SIG_HIGH_S);
} else { } else {
// If we do not enforce low S, then high S sigs are accepted. // If we do not enforce low S, then high S sigs are accepted.
CheckSignatureEncodingWithSigHashType(highSSig, flags); CheckSignatureEncodingWithSigHashType(highSSig, flags);
} }
for (const valtype &nonDERSig : nonDERSigs) { for (const valtype &nonDERSig : nonDERSigs) {
if (flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | if (flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S |
SCRIPT_VERIFY_STRICTENC)) { SCRIPT_VERIFY_STRICTENC)) {
// If we get any of the dersig flags, the non canonical dersig // If we get any of the dersig flags, the non canonical dersig
// signature fails. // signature fails.
CheckSignatureErrorForAllSigHashType(nonDERSig, flags, BOOST_CHECK(
SCRIPT_ERR_SIG_DER); !CheckDataSignatureEncoding(nonDERSig, flags, &err));
BOOST_CHECK_EQUAL(err, SCRIPT_ERR_SIG_DER);
} else { } else {
// If we do not check, then it is accepted. // If we do not check, then it is accepted.
CheckSignatureEncodingWithSigHashType(nonDERSig, flags); BOOST_CHECK(CheckDataSignatureEncoding(nonDERSig, flags, &err));
} }
} }
for (const valtype &nonDERSig : nonParsableSigs) { for (const valtype &nonDERSig : nonParsableSigs) {
if (flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | if (flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S |
SCRIPT_VERIFY_STRICTENC)) { SCRIPT_VERIFY_STRICTENC)) {
// If we get any of the dersig flags, the invalid signature // If we get any of the dersig flags, the high S but non dersig
// fails. // signature fails.
CheckSignatureErrorForAllSigHashType(nonDERSig, flags, BOOST_CHECK(
SCRIPT_ERR_SIG_DER); !CheckDataSignatureEncoding(nonDERSig, flags, &err));
BOOST_CHECK_EQUAL(err, SCRIPT_ERR_SIG_DER);
} else { } else {
// If we do not check, then it is accepted even though it cannot // If we do not check, then it is accepted.
// even be parsed. BOOST_CHECK(CheckDataSignatureEncoding(nonDERSig, flags, &err));
CheckSignatureEncodingWithSigHashType(nonDERSig, flags);
} }
} }
} }
} }
BOOST_AUTO_TEST_CASE(checkpubkeyencoding_test) { BOOST_AUTO_TEST_CASE(checkpubkeyencoding_test) {
valtype compressedKey0{0x02, 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, valtype compressedKey0{0x02, 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0x12, 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0x12,
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