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rct amount key modified as per luigi1111's recommendations

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This allows the key to be not the same for two outputs sent to
the same address (eg, if you pay yourself, and also get change
back). Also remove the key amounts lists and return parameters
since we don't actually generate random ones, so we don't need
to save them as we can recalculate them when needed if we have
the correct keys.
This commit is contained in:
moneromooo-monero 2016-08-10 12:48:20 +01:00
parent 93f5c625f0
commit d4b62a1e29
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
15 changed files with 85 additions and 133 deletions
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17
tests/core_tests/rct.cpp
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@ -116,20 +116,22 @@ bool gen_rct_tx_validation_base::generate_with(std::vector<test_event_entry>& ev
destinations.push_back(td); // 30 -> 7.39 * 4
crypto::secret_key tx_key;
std::vector<crypto::secret_key> amount_keys;
bool r = construct_tx_and_get_tx_keys(miner_accounts[n].get_keys(), sources, destinations, std::vector<uint8_t>(), rct_txes[n], 0, tx_key, amount_keys, true);
bool r = construct_tx_and_get_tx_key(miner_accounts[n].get_keys(), sources, destinations, std::vector<uint8_t>(), rct_txes[n], 0, tx_key, true);
CHECK_AND_ASSERT_MES(r, false, "failed to construct transaction");
events.push_back(rct_txes[n]);
starting_rct_tx_hashes.push_back(get_transaction_hash(rct_txes[n]));
crypto::public_key tx_pub_key = get_tx_pub_key_from_extra(rct_txes[n]);
for (size_t o = 0; o < 4; ++o)
{
rct::key amount_key = rct::hash_to_scalar(rct::scalarmultKey(rct::pk2rct(tx_pub_key), rct::sk2rct(miner_accounts[n].get_keys().m_view_secret_key)));
crypto::key_derivation derivation;
bool r = crypto::generate_key_derivation(destinations[o].addr.m_view_public_key, tx_key, derivation);
CHECK_AND_ASSERT_MES(r, false, "Failed to generate key derivation");
crypto::secret_key amount_key;
crypto::derivation_to_scalar(derivation, o, amount_key);
if (rct_txes[n].rct_signatures.type == rct::RCTTypeSimple)
rct::decodeRctSimpleFromSharedSecret(rct_txes[n].rct_signatures, amount_key, o, rct_tx_masks[o+n*4]);
rct::decodeRctSimple(rct_txes[n].rct_signatures, rct::sk2rct(amount_key), o, rct_tx_masks[o+n*4]);
else
rct::decodeRctFromSharedSecret(rct_txes[n].rct_signatures, amount_key, o, rct_tx_masks[o+n*4]);
rct::decodeRct(rct_txes[n].rct_signatures, rct::sk2rct(amount_key), o, rct_tx_masks[o+n*4]);
}
CHECK_AND_ASSERT_MES(generator.construct_block_manually(blk_txes[n], blk_last, miner_account,
@ -205,8 +207,7 @@ bool gen_rct_tx_validation_base::generate_with(std::vector<test_event_entry>& ev
transaction tx;
crypto::secret_key tx_key;
std::vector<crypto::secret_key> amount_keys;
bool r = construct_tx_and_get_tx_keys(miner_accounts[0].get_keys(), sources, destinations, std::vector<uint8_t>(), tx, 0, tx_key, amount_keys, true);
bool r = construct_tx_and_get_tx_key(miner_accounts[0].get_keys(), sources, destinations, std::vector<uint8_t>(), tx, 0, tx_key, true);
CHECK_AND_ASSERT_MES(r, false, "failed to construct transaction");
if (post_tx)