diff options
Diffstat (limited to 'src/cryptonote_core/blockchain.cpp')
| -rw-r--r-- | src/cryptonote_core/blockchain.cpp | 56 |
1 files changed, 53 insertions, 3 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index 20dc7f9fb..9d4c5a66c 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -3015,6 +3015,30 @@ bool Blockchain::check_tx_outputs(const transaction& tx, tx_verification_context } } + // from v13, allow CLSAGs + if (hf_version < HF_VERSION_CLSAG) { + if (tx.version >= 2) { + if (tx.rct_signatures.type == rct::RCTTypeCLSAG) + { + MERROR_VER("Ringct type " << (unsigned)rct::RCTTypeCLSAG << " is not allowed before v" << HF_VERSION_CLSAG); + tvc.m_invalid_output = true; + return false; + } + } + } + + // from v14, allow only CLSAGs + if (hf_version > HF_VERSION_CLSAG) { + if (tx.version >= 2) { + if (tx.rct_signatures.type <= rct::RCTTypeBulletproof2) + { + MERROR_VER("Ringct type " << (unsigned)tx.rct_signatures.type << " is not allowed from v" << (HF_VERSION_CLSAG + 1)); + tvc.m_invalid_output = true; + return false; + } + } + } + return true; } //------------------------------------------------------------------ @@ -3055,7 +3079,7 @@ bool Blockchain::expand_transaction_2(transaction &tx, const crypto::hash &tx_pr } } } - else if (rv.type == rct::RCTTypeSimple || rv.type == rct::RCTTypeBulletproof || rv.type == rct::RCTTypeBulletproof2) + else if (rv.type == rct::RCTTypeSimple || rv.type == rct::RCTTypeBulletproof || rv.type == rct::RCTTypeBulletproof2 || rv.type == rct::RCTTypeCLSAG) { CHECK_AND_ASSERT_MES(!pubkeys.empty() && !pubkeys[0].empty(), false, "empty pubkeys"); rv.mixRing.resize(pubkeys.size()); @@ -3068,6 +3092,14 @@ bool Blockchain::expand_transaction_2(transaction &tx, const crypto::hash &tx_pr } } } + else if (rv.type == rct::RCTTypeCLSAG) + { + CHECK_AND_ASSERT_MES(rv.p.CLSAGs.size() == tx.vin.size(), false, "Bad CLSAGs size"); + for (size_t n = 0; n < tx.vin.size(); ++n) + { + rv.p.CLSAGs[n].I = rct::ki2rct(boost::get<txin_to_key>(tx.vin[n]).k_image); + } + } else { CHECK_AND_ASSERT_MES(false, false, "Unsupported rct tx type: " + boost::lexical_cast<std::string>(rv.type)); @@ -3096,6 +3128,17 @@ bool Blockchain::expand_transaction_2(transaction &tx, const crypto::hash &tx_pr } } } + else if (rv.type == rct::RCTTypeCLSAG) + { + if (!tx.pruned) + { + CHECK_AND_ASSERT_MES(rv.p.CLSAGs.size() == tx.vin.size(), false, "Bad CLSAGs size"); + for (size_t n = 0; n < tx.vin.size(); ++n) + { + rv.p.CLSAGs[n].I = rct::ki2rct(boost::get<txin_to_key>(tx.vin[n]).k_image); + } + } + } else { CHECK_AND_ASSERT_MES(false, false, "Unsupported rct tx type: " + boost::lexical_cast<std::string>(rv.type)); @@ -3377,6 +3420,7 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc, case rct::RCTTypeSimple: case rct::RCTTypeBulletproof: case rct::RCTTypeBulletproof2: + case rct::RCTTypeCLSAG: { // check all this, either reconstructed (so should really pass), or not { @@ -3412,14 +3456,20 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc, } } - if (rv.p.MGs.size() != tx.vin.size()) + const size_t n_sigs = rv.type == rct::RCTTypeCLSAG ? rv.p.CLSAGs.size() : rv.p.MGs.size(); + if (n_sigs != tx.vin.size()) { MERROR_VER("Failed to check ringct signatures: mismatched MGs/vin sizes"); return false; } for (size_t n = 0; n < tx.vin.size(); ++n) { - if (rv.p.MGs[n].II.empty() || memcmp(&boost::get<txin_to_key>(tx.vin[n]).k_image, &rv.p.MGs[n].II[0], 32)) + bool error; + if (rv.type == rct::RCTTypeCLSAG) + error = memcmp(&boost::get<txin_to_key>(tx.vin[n]).k_image, &rv.p.CLSAGs[n].I, 32); + else + error = rv.p.MGs[n].II.empty() || memcmp(&boost::get<txin_to_key>(tx.vin[n]).k_image, &rv.p.MGs[n].II[0], 32); + if (error) { MERROR_VER("Failed to check ringct signatures: mismatched key image"); return false; |