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Merge #5784: Fix usage of NegateSignatureS in script_tests

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78c6bed Add test for DER-encoding edge case (Suhas Daftuar)
6f50dbd Fix NegateSignatureS to not duplicate last byte of S (Suhas Daftuar)
This commit is contained in:
Wladimir J. van der Laan 2015-02-18 09:50:11 +01:00
commit e3a3cd7a28
No known key found for this signature in database
GPG key ID: 74810B012346C9A6
3 changed files with 20 additions and 4 deletions
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8
src/test/data/script_invalid.json
View file

@ -696,7 +696,13 @@
"BIP66 example 11, with DERSIG" "BIP66 example 11, with DERSIG"
], ],
[ [
"0x49 0x304502203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022100ab1e3da73d67e32045a20e0b999e049978ea8d6ee5480d485fcf2ce0d03b2ef05101", "0x48 0x304402203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022054e1c258c2981cdfba5df1f46661fb6541c44f77ca0092f3600331abfffb12510101",
"0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG",
"DERSIG",
"P2PK with multi-byte hashtype, with DERSIG"
],
[
"0x48 0x304502203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022100ab1e3da73d67e32045a20e0b999e049978ea8d6ee5480d485fcf2ce0d03b2ef001",
"0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG", "0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG",
"LOW_S", "LOW_S",
"P2PK with high S" "P2PK with high S"

8
src/test/data/script_valid.json
View file

@ -814,7 +814,13 @@
"BIP66 example 12, with DERSIG" "BIP66 example 12, with DERSIG"
], ],
[ [
"0x49 0x304502203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022100ab1e3da73d67e32045a20e0b999e049978ea8d6ee5480d485fcf2ce0d03b2ef05101", "0x48 0x304402203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022054e1c258c2981cdfba5df1f46661fb6541c44f77ca0092f3600331abfffb12510101",
"0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG",
"",
"P2PK with multi-byte hashtype, without DERSIG"
],
[
"0x48 0x304502203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022100ab1e3da73d67e32045a20e0b999e049978ea8d6ee5480d485fcf2ce0d03b2ef001",
"0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG", "0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG",
"", "",
"P2PK with high S but no LOW_S" "P2PK with high S but no LOW_S"

8
src/test/script_tests.cpp
View file

@ -107,7 +107,6 @@ void static NegateSignatureS(std::vector<unsigned char>& vchSig) {
std::vector<unsigned char> r, s; std::vector<unsigned char> r, s;
r = std::vector<unsigned char>(vchSig.begin() + 4, vchSig.begin() + 4 + vchSig[3]); r = std::vector<unsigned char>(vchSig.begin() + 4, vchSig.begin() + 4 + vchSig[3]);
s = std::vector<unsigned char>(vchSig.begin() + 6 + vchSig[3], vchSig.begin() + 6 + vchSig[3] + vchSig[5 + vchSig[3]]); s = std::vector<unsigned char>(vchSig.begin() + 6 + vchSig[3], vchSig.begin() + 6 + vchSig[3] + vchSig[5 + vchSig[3]]);
unsigned char hashtype = vchSig.back();
// Really ugly to implement mod-n negation here, but it would be feature creep to expose such functionality from libsecp256k1. // Really ugly to implement mod-n negation here, but it would be feature creep to expose such functionality from libsecp256k1.
static const unsigned char order[33] = { static const unsigned char order[33] = {
@ -141,7 +140,6 @@ void static NegateSignatureS(std::vector<unsigned char>& vchSig) {
vchSig.push_back(0x02); vchSig.push_back(0x02);
vchSig.push_back(s.size()); vchSig.push_back(s.size());
vchSig.insert(vchSig.end(), s.begin(), s.end()); vchSig.insert(vchSig.end(), s.begin(), s.end());
vchSig.push_back(hashtype);
} }
namespace namespace
@ -478,6 +476,12 @@ BOOST_AUTO_TEST_CASE(script_build)
good.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT, good.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
"BIP66 example 12, with DERSIG", SCRIPT_VERIFY_DERSIG "BIP66 example 12, with DERSIG", SCRIPT_VERIFY_DERSIG
).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").Num(0)); ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").Num(0));
good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG,
"P2PK with multi-byte hashtype, without DERSIG", 0
).PushSig(keys.key2, SIGHASH_ALL).EditPush(70, "01", "0101"));
bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG,
"P2PK with multi-byte hashtype, with DERSIG", SCRIPT_VERIFY_DERSIG
).PushSig(keys.key2, SIGHASH_ALL).EditPush(70, "01", "0101"));
good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG, good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG,
"P2PK with high S but no LOW_S", 0 "P2PK with high S but no LOW_S", 0