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add test: UnblindConfidentialPair: invalid pubk in nNonce.vchCommitment

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Added to prevent regression, code supplied by @instagibbs
(https://github.com/ElementsProject/elements/pull/489#issuecomment-450933962)
This commit is contained in:
Dmitry Petukhov 2019-01-02 23:07:48 +05:00
parent f8a9d8bfa5
commit 07f2178eb5
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GPG key ID: 2301D26BDC15160D
1 changed files with 14 additions and 0 deletions
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14
src/test/blind_tests.cpp
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@ -302,6 +302,20 @@ BOOST_AUTO_TEST_CASE(naive_blinding_test)
BOOST_CHECK(asset_out == unblinded_id);
BOOST_CHECK(unblinded_amount == 50);
// Make invalid public keys in nonce commitment, first of right size
tx4.vout[2].nNonce.vchCommitment = std::vector<unsigned char>(33, 0);
tx4.vout[2].nNonce.vchCommitment[0] = 0x03;
BOOST_CHECK(UnblindConfidentialPair(key2, tx4.vout[2].nValue, tx4.vout[2].nAsset, tx4.vout[2].nNonce, scriptCommit, tx4.wit.vtxoutwit[2].vchRangeproof, unblinded_amount, blind4, asset_out, asset_blinder_out) == 0);
// Next, leading byte claiming to be 33 bytes in size
tx4.vout[2].nNonce.vchCommitment.resize(1);
BOOST_CHECK(UnblindConfidentialPair(key2, tx4.vout[2].nValue, tx4.vout[2].nAsset, tx4.vout[2].nNonce, scriptCommit, tx4.wit.vtxoutwit[2].vchRangeproof, unblinded_amount, blind4, asset_out, asset_blinder_out) == 0);
// Last, blank
tx4.vout[2].nNonce.vchCommitment.clear();
BOOST_CHECK(UnblindConfidentialPair(key2, tx4.vout[2].nValue, tx4.vout[2].nAsset, tx4.vout[2].nNonce, scriptCommit, tx4.wit.vtxoutwit[2].vchRangeproof, unblinded_amount, blind4, asset_out, asset_blinder_out) == 0);
CCoinsModifier in4 = cache.ModifyCoins(ArithToUint256(4));
in4->vout.resize(4);
in4->vout[0] = tx4.vout[0];