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Merge pull request #2440

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6137a0b9 blockchain: reject unsorted ins and outs from v7 (moneromooo-monero)
16afab90 core: sort ins and outs key key image and public key, respectively (moneromooo-monero)
0c36b9f9 common: add apply_permutation file and function (moneromooo-monero)
This commit is contained in:
Riccardo Spagni 2017-09-25 16:49:01 +02:00
commit 08ada1fa8b
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7 changed files with 215 additions and 6 deletions
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39
src/cryptonote_core/blockchain.cpp
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@ -2384,6 +2384,26 @@ bool Blockchain::check_tx_outputs(const transaction& tx, tx_verification_context
}
}
// from v7, sorted outs
if (m_hardfork->get_current_version() >= 7) {
const crypto::public_key *last_key = NULL;
for (size_t n = 0; n < tx.vout.size(); ++n)
{
const tx_out &o = tx.vout[n];
if (o.target.type() == typeid(txout_to_key))
{
const txout_to_key& out_to_key = boost::get<txout_to_key>(o.target);
if (last_key && memcmp(&out_to_key.key, last_key, sizeof(*last_key)) >= 0)
{
MERROR_VER("transaction has unsorted outputs");
tvc.m_invalid_output = true;
return false;
}
last_key = &out_to_key.key;
}
}
}
return true;
}
//------------------------------------------------------------------
@ -2552,6 +2572,25 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
}
}
// from v7, sorted ins
if (hf_version >= 7) {
const crypto::key_image *last_key_image = NULL;
for (size_t n = 0; n < tx.vin.size(); ++n)
{
const txin_v &txin = tx.vin[n];
if (txin.type() == typeid(txin_to_key))
{
const txin_to_key& in_to_key = boost::get<txin_to_key>(txin);
if (last_key_image && memcmp(&in_to_key.k_image, last_key_image, sizeof(*last_key_image)) >= 0)
{
MERROR_VER("transaction has unsorted inputs");
tvc.m_verifivation_failed = true;
return false;
}
last_key_image = &in_to_key.k_image;
}
}
}
auto it = m_check_txin_table.find(tx_prefix_hash);
if(it == m_check_txin_table.end())
{