diff options
author | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2020-12-17 11:57:53 +0000 |
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committer | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2022-04-05 18:50:17 +0000 |
commit | a0d80b1f95cee64edfeba799f4fe9b8fb2ef4f43 (patch) | |
tree | ac0526f8b6747105010dacc20b3cd70e18ca993f /src/ringct | |
parent | Updates from security audit (diff) | |
download | monero-a0d80b1f95cee64edfeba799f4fe9b8fb2ef4f43.tar.xz |
plug bulletproofs plus into consensus
Diffstat (limited to 'src/ringct')
-rw-r--r-- | src/ringct/bulletproofs_plus.cc | 14 | ||||
-rw-r--r-- | src/ringct/rctSigs.cpp | 200 | ||||
-rw-r--r-- | src/ringct/rctTypes.cpp | 87 | ||||
-rw-r--r-- | src/ringct/rctTypes.h | 51 |
4 files changed, 276 insertions, 76 deletions
diff --git a/src/ringct/bulletproofs_plus.cc b/src/ringct/bulletproofs_plus.cc index fd2ebfce0..589e58525 100644 --- a/src/ringct/bulletproofs_plus.cc +++ b/src/ringct/bulletproofs_plus.cc @@ -65,7 +65,7 @@ namespace rct // Proof bounds static constexpr size_t maxN = 64; // maximum number of bits in range - static constexpr size_t maxM = BULLETPROOF_MAX_OUTPUTS; // maximum number of outputs to aggregate into a single proof + static constexpr size_t maxM = BULLETPROOF_PLUS_MAX_OUTPUTS; // maximum number of outputs to aggregate into a single proof // Cached public generators static rct::key Hi[maxN*maxM], Gi[maxN*maxM]; @@ -796,15 +796,7 @@ try_again: rct::keyV sv(v.size()); for (size_t i = 0; i < v.size(); ++i) { - sv[i] = rct::zero(); - sv[i].bytes[0] = v[i] & 255; - sv[i].bytes[1] = (v[i] >> 8) & 255; - sv[i].bytes[2] = (v[i] >> 16) & 255; - sv[i].bytes[3] = (v[i] >> 24) & 255; - sv[i].bytes[4] = (v[i] >> 32) & 255; - sv[i].bytes[5] = (v[i] >> 40) & 255; - sv[i].bytes[6] = (v[i] >> 48) & 255; - sv[i].bytes[7] = (v[i] >> 56) & 255; + sv[i] = rct::d2h(v[i]); } return bulletproof_plus_PROVE(sv, gamma); } @@ -836,7 +828,7 @@ try_again: // We'll perform only a single batch inversion across all proofs in the batch, // since batch inversion requires only one scalar inversion operation. std::vector<rct::key> to_invert; - to_invert.reserve(11 * sizeof(proofs)); // maximal size, given the aggregation limit + to_invert.reserve(11 * proofs.size()); // maximal size, given the aggregation limit for (const BulletproofPlus *p: proofs) { diff --git a/src/ringct/rctSigs.cpp b/src/ringct/rctSigs.cpp index f5950c53c..961d83a9e 100644 --- a/src/ringct/rctSigs.cpp +++ b/src/ringct/rctSigs.cpp @@ -35,6 +35,7 @@ #include "common/util.h" #include "rctSigs.h" #include "bulletproofs.h" +#include "bulletproofs_plus.h" #include "cryptonote_basic/cryptonote_format_utils.h" #include "cryptonote_config.h" @@ -78,6 +79,36 @@ namespace return rct::Bulletproof{rct::keyV(n_outs, I), I, I, I, I, I, I, rct::keyV(nrl, I), rct::keyV(nrl, I), I, I, I}; } + rct::BulletproofPlus make_dummy_bulletproof_plus(const std::vector<uint64_t> &outamounts, rct::keyV &C, rct::keyV &masks) + { + const size_t n_outs = outamounts.size(); + const rct::key I = rct::identity(); + size_t nrl = 0; + while ((1u << nrl) < n_outs) + ++nrl; + nrl += 6; + + C.resize(n_outs); + masks.resize(n_outs); + for (size_t i = 0; i < n_outs; ++i) + { + masks[i] = I; + rct::key sv8, sv; + sv = rct::zero(); + sv.bytes[0] = outamounts[i] & 255; + sv.bytes[1] = (outamounts[i] >> 8) & 255; + sv.bytes[2] = (outamounts[i] >> 16) & 255; + sv.bytes[3] = (outamounts[i] >> 24) & 255; + sv.bytes[4] = (outamounts[i] >> 32) & 255; + sv.bytes[5] = (outamounts[i] >> 40) & 255; + sv.bytes[6] = (outamounts[i] >> 48) & 255; + sv.bytes[7] = (outamounts[i] >> 56) & 255; + sc_mul(sv8.bytes, sv.bytes, rct::INV_EIGHT.bytes); + rct::addKeys2(C[i], rct::INV_EIGHT, sv8, rct::H); + } + + return rct::BulletproofPlus{rct::keyV(n_outs, I), I, I, I, I, I, I, rct::keyV(nrl, I), rct::keyV(nrl, I)}; + } } namespace rct { @@ -107,6 +138,32 @@ namespace rct { catch (...) { return false; } } + BulletproofPlus proveRangeBulletproofPlus(keyV &C, keyV &masks, const std::vector<uint64_t> &amounts, epee::span<const key> sk, hw::device &hwdev) + { + CHECK_AND_ASSERT_THROW_MES(amounts.size() == sk.size(), "Invalid amounts/sk sizes"); + masks.resize(amounts.size()); + for (size_t i = 0; i < masks.size(); ++i) + masks[i] = hwdev.genCommitmentMask(sk[i]); + BulletproofPlus proof = bulletproof_plus_PROVE(amounts, masks); + CHECK_AND_ASSERT_THROW_MES(proof.V.size() == amounts.size(), "V does not have the expected size"); + C = proof.V; + return proof; + } + + bool verBulletproofPlus(const BulletproofPlus &proof) + { + try { return bulletproof_plus_VERIFY(proof); } + // we can get deep throws from ge_frombytes_vartime if input isn't valid + catch (...) { return false; } + } + + bool verBulletproofPlus(const std::vector<const BulletproofPlus*> &proofs) + { + try { return bulletproof_plus_VERIFY(proofs); } + // we can get deep throws from ge_frombytes_vartime if input isn't valid + catch (...) { return false; } + } + //Borromean (c.f. gmax/andytoshi's paper) boroSig genBorromean(const key64 x, const key64 P1, const key64 P2, const bits indices) { key64 L[2], alpha; @@ -611,6 +668,25 @@ namespace rct { kv.push_back(p.t); } } + else if (rv.type == RCTTypeBulletproofPlus) + { + kv.reserve((6*2+6) * rv.p.bulletproofs_plus.size()); + for (const auto &p: rv.p.bulletproofs_plus) + { + // V are not hashed as they're expanded from outPk.mask + // (and thus hashed as part of rctSigBase above) + kv.push_back(p.A); + kv.push_back(p.A1); + kv.push_back(p.B); + kv.push_back(p.r1); + kv.push_back(p.s1); + kv.push_back(p.d1); + for (size_t n = 0; n < p.L.size(); ++n) + kv.push_back(p.L[n]); + for (size_t n = 0; n < p.R.size(); ++n) + kv.push_back(p.R[n]); + } + } else { kv.reserve((64*3+1) * rv.p.rangeSigs.size()); @@ -1031,7 +1107,7 @@ namespace rct { //mask amount and mask rv.ecdhInfo[i].mask = copy(outSk[i].mask); rv.ecdhInfo[i].amount = d2h(amounts[i]); - hwdev.ecdhEncode(rv.ecdhInfo[i], amount_keys[i], rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG); + hwdev.ecdhEncode(rv.ecdhInfo[i], amount_keys[i], rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus); } //set txn fee @@ -1063,7 +1139,7 @@ namespace rct { //RCT simple //for post-rct only rctSig genRctSimple(const key &message, const ctkeyV & inSk, const keyV & destinations, const vector<xmr_amount> &inamounts, const vector<xmr_amount> &outamounts, xmr_amount txnFee, const ctkeyM & mixRing, const keyV &amount_keys, const std::vector<multisig_kLRki> *kLRki, multisig_out *msout, const std::vector<unsigned int> & index, ctkeyV &outSk, const RCTConfig &rct_config, hw::device &hwdev) { - const bool bulletproof = rct_config.range_proof_type != RangeProofBorromean; + const bool bulletproof_or_plus = rct_config.range_proof_type > RangeProofBorromean; CHECK_AND_ASSERT_THROW_MES(inamounts.size() > 0, "Empty inamounts"); CHECK_AND_ASSERT_THROW_MES(inamounts.size() == inSk.size(), "Different number of inamounts/inSk"); CHECK_AND_ASSERT_THROW_MES(outamounts.size() == destinations.size(), "Different number of amounts/destinations"); @@ -1079,11 +1155,14 @@ namespace rct { } rctSig rv; - if (bulletproof) + if (bulletproof_or_plus) { switch (rct_config.bp_version) { case 0: + case 4: + rv.type = RCTTypeBulletproofPlus; + break; case 3: rv.type = RCTTypeCLSAG; break; @@ -1102,7 +1181,7 @@ namespace rct { rv.message = message; rv.outPk.resize(destinations.size()); - if (!bulletproof) + if (!bulletproof_or_plus) rv.p.rangeSigs.resize(destinations.size()); rv.ecdhInfo.resize(destinations.size()); @@ -1114,17 +1193,19 @@ namespace rct { //add destination to sig rv.outPk[i].dest = copy(destinations[i]); //compute range proof - if (!bulletproof) + if (!bulletproof_or_plus) rv.p.rangeSigs[i] = proveRange(rv.outPk[i].mask, outSk[i].mask, outamounts[i]); #ifdef DBG - if (!bulletproof) + if (!bulletproof_or_plus) CHECK_AND_ASSERT_THROW_MES(verRange(rv.outPk[i].mask, rv.p.rangeSigs[i]), "verRange failed on newly created proof"); #endif } rv.p.bulletproofs.clear(); - if (bulletproof) + rv.p.bulletproofs_plus.clear(); + if (bulletproof_or_plus) { + const bool plus = rv.type == RCTTypeBulletproofPlus; size_t n_amounts = outamounts.size(); size_t amounts_proved = 0; if (rct_config.range_proof_type == RangeProofPaddedBulletproof) @@ -1133,14 +1214,23 @@ namespace rct { if (hwdev.get_mode() == hw::device::TRANSACTION_CREATE_FAKE) { // use a fake bulletproof for speed - rv.p.bulletproofs.push_back(make_dummy_bulletproof(outamounts, C, masks)); + if (plus) + rv.p.bulletproofs_plus.push_back(make_dummy_bulletproof_plus(outamounts, C, masks)); + else + rv.p.bulletproofs.push_back(make_dummy_bulletproof(outamounts, C, masks)); } else { const epee::span<const key> keys{&amount_keys[0], amount_keys.size()}; - rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, outamounts, keys, hwdev)); + if (plus) + rv.p.bulletproofs_plus.push_back(proveRangeBulletproofPlus(C, masks, outamounts, keys, hwdev)); + else + rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, outamounts, keys, hwdev)); #ifdef DBG - CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); + if (plus) + CHECK_AND_ASSERT_THROW_MES(verBulletproofPlus(rv.p.bulletproofs_plus.back()), "verBulletproofPlus failed on newly created proof"); + else + CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); #endif } for (i = 0; i < outamounts.size(); ++i) @@ -1153,7 +1243,7 @@ namespace rct { { size_t batch_size = 1; if (rct_config.range_proof_type == RangeProofMultiOutputBulletproof) - while (batch_size * 2 + amounts_proved <= n_amounts && batch_size * 2 <= BULLETPROOF_MAX_OUTPUTS) + while (batch_size * 2 + amounts_proved <= n_amounts && batch_size * 2 <= (plus ? BULLETPROOF_PLUS_MAX_OUTPUTS : BULLETPROOF_MAX_OUTPUTS)) batch_size *= 2; rct::keyV C, masks; std::vector<uint64_t> batch_amounts(batch_size); @@ -1162,14 +1252,23 @@ namespace rct { if (hwdev.get_mode() == hw::device::TRANSACTION_CREATE_FAKE) { // use a fake bulletproof for speed - rv.p.bulletproofs.push_back(make_dummy_bulletproof(batch_amounts, C, masks)); + if (plus) + rv.p.bulletproofs_plus.push_back(make_dummy_bulletproof_plus(batch_amounts, C, masks)); + else + rv.p.bulletproofs.push_back(make_dummy_bulletproof(batch_amounts, C, masks)); } else { const epee::span<const key> keys{&amount_keys[amounts_proved], batch_size}; - rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, batch_amounts, keys, hwdev)); + if (plus) + rv.p.bulletproofs_plus.push_back(proveRangeBulletproofPlus(C, masks, batch_amounts, keys, hwdev)); + else + rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, batch_amounts, keys, hwdev)); #ifdef DBG - CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); + if (plus) + CHECK_AND_ASSERT_THROW_MES(verBulletproofPlus(rv.p.bulletproofs_plus.back()), "verBulletproofPlus failed on newly created proof"); + else + CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); #endif } for (i = 0; i < batch_size; ++i) @@ -1189,7 +1288,7 @@ namespace rct { //mask amount and mask rv.ecdhInfo[i].mask = copy(outSk[i].mask); rv.ecdhInfo[i].amount = d2h(outamounts[i]); - hwdev.ecdhEncode(rv.ecdhInfo[i], amount_keys[i], rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG); + hwdev.ecdhEncode(rv.ecdhInfo[i], amount_keys[i], rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus); } //set txn fee @@ -1197,9 +1296,9 @@ namespace rct { // TODO: unused ?? // key txnFeeKey = scalarmultH(d2h(rv.txnFee)); rv.mixRing = mixRing; - keyV &pseudoOuts = bulletproof ? rv.p.pseudoOuts : rv.pseudoOuts; + keyV &pseudoOuts = bulletproof_or_plus ? rv.p.pseudoOuts : rv.pseudoOuts; pseudoOuts.resize(inamounts.size()); - if (rv.type == RCTTypeCLSAG) + if (is_rct_clsag(rv.type)) rv.p.CLSAGs.resize(inamounts.size()); else rv.p.MGs.resize(inamounts.size()); @@ -1218,11 +1317,11 @@ namespace rct { if (msout) { msout->c.resize(inamounts.size()); - msout->mu_p.resize(rv.type == RCTTypeCLSAG ? inamounts.size() : 0); + msout->mu_p.resize(is_rct_clsag(rv.type) ? inamounts.size() : 0); } for (i = 0 ; i < inamounts.size(); i++) { - if (rv.type == RCTTypeCLSAG) + if (is_rct_clsag(rv.type)) { rv.p.CLSAGs[i] = proveRctCLSAGSimple(full_message, rv.mixRing[i], inSk[i], a[i], pseudoOuts[i], kLRki ? &(*kLRki)[i]: NULL, msout ? &msout->c[i] : NULL, msout ? &msout->mu_p[i] : NULL, index[i], hwdev); } @@ -1328,20 +1427,25 @@ namespace rct { tools::threadpool& tpool = tools::threadpool::getInstance(); tools::threadpool::waiter waiter(tpool); std::deque<bool> results; - std::vector<const Bulletproof*> proofs; + std::vector<const Bulletproof*> bp_proofs; + std::vector<const BulletproofPlus*> bpp_proofs; size_t max_non_bp_proofs = 0, offset = 0; for (const rctSig *rvp: rvv) { CHECK_AND_ASSERT_MES(rvp, false, "rctSig pointer is NULL"); const rctSig &rv = *rvp; - CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG, + CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus, false, "verRctSemanticsSimple called on non simple rctSig"); const bool bulletproof = is_rct_bulletproof(rv.type); - if (bulletproof) + const bool bulletproof_plus = is_rct_bulletproof_plus(rv.type); + if (bulletproof || bulletproof_plus) { - CHECK_AND_ASSERT_MES(rv.outPk.size() == n_bulletproof_amounts(rv.p.bulletproofs), false, "Mismatched sizes of outPk and bulletproofs"); - if (rv.type == RCTTypeCLSAG) + if (bulletproof_plus) + CHECK_AND_ASSERT_MES(rv.outPk.size() == n_bulletproof_plus_amounts(rv.p.bulletproofs_plus), false, "Mismatched sizes of outPk and bulletproofs_plus"); + else + CHECK_AND_ASSERT_MES(rv.outPk.size() == n_bulletproof_amounts(rv.p.bulletproofs), false, "Mismatched sizes of outPk and bulletproofs"); + if (is_rct_clsag(rv.type)) { CHECK_AND_ASSERT_MES(rv.p.MGs.empty(), false, "MGs are not empty for CLSAG"); CHECK_AND_ASSERT_MES(rv.p.pseudoOuts.size() == rv.p.CLSAGs.size(), false, "Mismatched sizes of rv.p.pseudoOuts and rv.p.CLSAGs"); @@ -1361,7 +1465,7 @@ namespace rct { } CHECK_AND_ASSERT_MES(rv.outPk.size() == rv.ecdhInfo.size(), false, "Mismatched sizes of outPk and rv.ecdhInfo"); - if (!bulletproof) + if (!bulletproof && !bulletproof_plus) max_non_bp_proofs += rv.p.rangeSigs.size(); } @@ -1371,7 +1475,8 @@ namespace rct { const rctSig &rv = *rvp; const bool bulletproof = is_rct_bulletproof(rv.type); - const keyV &pseudoOuts = bulletproof ? rv.p.pseudoOuts : rv.pseudoOuts; + const bool bulletproof_plus = is_rct_bulletproof_plus(rv.type); + const keyV &pseudoOuts = bulletproof || bulletproof_plus ? rv.p.pseudoOuts : rv.pseudoOuts; rct::keyV masks(rv.outPk.size()); for (size_t i = 0; i < rv.outPk.size(); i++) { @@ -1391,10 +1496,15 @@ namespace rct { return false; } - if (bulletproof) + if (bulletproof_plus) + { + for (size_t i = 0; i < rv.p.bulletproofs_plus.size(); i++) + bpp_proofs.push_back(&rv.p.bulletproofs_plus[i]); + } + else if (bulletproof) { for (size_t i = 0; i < rv.p.bulletproofs.size(); i++) - proofs.push_back(&rv.p.bulletproofs[i]); + bp_proofs.push_back(&rv.p.bulletproofs[i]); } else { @@ -1403,9 +1513,18 @@ namespace rct { offset += rv.p.rangeSigs.size(); } } - if (!proofs.empty() && !verBulletproof(proofs)) + if (!bpp_proofs.empty() && !verBulletproofPlus(bpp_proofs)) + { + LOG_PRINT_L1("Aggregate range proof verified failed"); + if (!waiter.wait()) + return false; + return false; + } + if (!bp_proofs.empty() && !verBulletproof(bp_proofs)) { LOG_PRINT_L1("Aggregate range proof verified failed"); + if (!waiter.wait()) + return false; return false; } @@ -1445,11 +1564,12 @@ namespace rct { { PERF_TIMER(verRctNonSemanticsSimple); - CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG, + CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus, false, "verRctNonSemanticsSimple called on non simple rctSig"); const bool bulletproof = is_rct_bulletproof(rv.type); + const bool bulletproof_plus = is_rct_bulletproof_plus(rv.type); // semantics check is early, and mixRing/MGs aren't resolved yet - if (bulletproof) + if (bulletproof || bulletproof_plus) CHECK_AND_ASSERT_MES(rv.p.pseudoOuts.size() == rv.mixRing.size(), false, "Mismatched sizes of rv.p.pseudoOuts and mixRing"); else CHECK_AND_ASSERT_MES(rv.pseudoOuts.size() == rv.mixRing.size(), false, "Mismatched sizes of rv.pseudoOuts and mixRing"); @@ -1460,7 +1580,7 @@ namespace rct { tools::threadpool& tpool = tools::threadpool::getInstance(); tools::threadpool::waiter waiter(tpool); - const keyV &pseudoOuts = bulletproof ? rv.p.pseudoOuts : rv.pseudoOuts; + const keyV &pseudoOuts = bulletproof || bulletproof_plus ? rv.p.pseudoOuts : rv.pseudoOuts; const key message = get_pre_mlsag_hash(rv, hw::get_device("default")); @@ -1468,10 +1588,8 @@ namespace rct { results.resize(rv.mixRing.size()); for (size_t i = 0 ; i < rv.mixRing.size() ; i++) { tpool.submit(&waiter, [&, i] { - if (rv.type == RCTTypeCLSAG) - { + if (is_rct_clsag(rv.type)) results[i] = verRctCLSAGSimple(message, rv.p.CLSAGs[i], rv.mixRing[i], pseudoOuts[i]); - } else results[i] = verRctMGSimple(message, rv.p.MGs[i], rv.mixRing[i], pseudoOuts[i]); }); @@ -1518,7 +1636,7 @@ namespace rct { //mask amount and mask ecdhTuple ecdh_info = rv.ecdhInfo[i]; - hwdev.ecdhDecode(ecdh_info, sk, rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG); + hwdev.ecdhDecode(ecdh_info, sk, rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus); mask = ecdh_info.mask; key amount = ecdh_info.amount; key C = rv.outPk[i].mask; @@ -1542,13 +1660,14 @@ namespace rct { } xmr_amount decodeRctSimple(const rctSig & rv, const key & sk, unsigned int i, key &mask, hw::device &hwdev) { - CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG, false, "decodeRct called on non simple rctSig"); + CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus, + false, "decodeRct called on non simple rctSig"); CHECK_AND_ASSERT_THROW_MES(i < rv.ecdhInfo.size(), "Bad index"); CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo"); //mask amount and mask ecdhTuple ecdh_info = rv.ecdhInfo[i]; - hwdev.ecdhDecode(ecdh_info, sk, rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG); + hwdev.ecdhDecode(ecdh_info, sk, rv.type == RCTTypeBulletproof2 || rv.type == RCTTypeCLSAG || rv.type == RCTTypeBulletproofPlus); mask = ecdh_info.mask; key amount = ecdh_info.amount; key C = rv.outPk[i].mask; @@ -1574,6 +1693,7 @@ namespace rct { bool signMultisigMLSAG(rctSig &rv, const std::vector<unsigned int> &indices, const keyV &k, const multisig_out &msout, const key &secret_key) { CHECK_AND_ASSERT_MES(rv.type == RCTTypeFull || rv.type == RCTTypeSimple || rv.type == RCTTypeBulletproof || rv.type == RCTTypeBulletproof2, false, "unsupported rct type"); + CHECK_AND_ASSERT_MES(!is_rct_clsag(rv.type), false, "CLSAG signature type in MLSAG signature function"); CHECK_AND_ASSERT_MES(indices.size() == k.size(), false, "Mismatched k/indices sizes"); CHECK_AND_ASSERT_MES(k.size() == rv.p.MGs.size(), false, "Mismatched k/MGs size"); CHECK_AND_ASSERT_MES(k.size() == msout.c.size(), false, "Mismatched k/msout.c size"); @@ -1598,7 +1718,7 @@ namespace rct { } bool signMultisigCLSAG(rctSig &rv, const std::vector<unsigned int> &indices, const keyV &k, const multisig_out &msout, const key &secret_key) { - CHECK_AND_ASSERT_MES(rv.type == RCTTypeCLSAG, false, "unsupported rct type"); + CHECK_AND_ASSERT_MES(is_rct_clsag(rv.type), false, "unsupported rct type"); CHECK_AND_ASSERT_MES(indices.size() == k.size(), false, "Mismatched k/indices sizes"); CHECK_AND_ASSERT_MES(k.size() == rv.p.CLSAGs.size(), false, "Mismatched k/CLSAGs size"); CHECK_AND_ASSERT_MES(k.size() == msout.c.size(), false, "Mismatched k/msout.c size"); @@ -1620,7 +1740,7 @@ namespace rct { } bool signMultisig(rctSig &rv, const std::vector<unsigned int> &indices, const keyV &k, const multisig_out &msout, const key &secret_key) { - if (rv.type == RCTTypeCLSAG) + if (is_rct_clsag(rv.type)) return signMultisigCLSAG(rv, indices, k, msout, secret_key); else return signMultisigMLSAG(rv, indices, k, msout, secret_key); diff --git a/src/ringct/rctTypes.cpp b/src/ringct/rctTypes.cpp index 1f674056d..c22b0524f 100644 --- a/src/ringct/rctTypes.cpp +++ b/src/ringct/rctTypes.cpp @@ -196,6 +196,7 @@ namespace rct { case RCTTypeBulletproof: case RCTTypeBulletproof2: case RCTTypeCLSAG: + case RCTTypeBulletproofPlus: return true; default: return false; @@ -215,6 +216,17 @@ namespace rct { } } + bool is_rct_bulletproof_plus(int type) + { + switch (type) + { + case RCTTypeBulletproofPlus: + return true; + default: + return false; + } + } + bool is_rct_borromean(int type) { switch (type) @@ -227,19 +239,34 @@ namespace rct { } } - size_t n_bulletproof_amounts(const Bulletproof &proof) + bool is_rct_clsag(int type) { - CHECK_AND_ASSERT_MES(proof.L.size() >= 6, 0, "Invalid bulletproof L size"); - CHECK_AND_ASSERT_MES(proof.L.size() == proof.R.size(), 0, "Mismatched bulletproof L/R size"); + switch (type) + { + case RCTTypeCLSAG: + case RCTTypeBulletproofPlus: + return true; + default: + return false; + } + } + + static size_t n_bulletproof_amounts_base(const size_t L_size, const size_t R_size, const size_t V_size, const size_t max_outputs) + { + CHECK_AND_ASSERT_MES(L_size >= 6, 0, "Invalid bulletproof L size"); + CHECK_AND_ASSERT_MES(L_size == R_size, 0, "Mismatched bulletproof L/R size"); static const size_t extra_bits = 4; - static_assert((1 << extra_bits) == BULLETPROOF_MAX_OUTPUTS, "log2(BULLETPROOF_MAX_OUTPUTS) is out of date"); - CHECK_AND_ASSERT_MES(proof.L.size() <= 6 + extra_bits, 0, "Invalid bulletproof L size"); - CHECK_AND_ASSERT_MES(proof.V.size() <= (1u<<(proof.L.size()-6)), 0, "Invalid bulletproof V/L"); - CHECK_AND_ASSERT_MES(proof.V.size() * 2 > (1u<<(proof.L.size()-6)), 0, "Invalid bulletproof V/L"); - CHECK_AND_ASSERT_MES(proof.V.size() > 0, 0, "Empty bulletproof"); - return proof.V.size(); + CHECK_AND_ASSERT_MES((1 << extra_bits) == max_outputs, 0, "log2(max_outputs) is out of date"); + CHECK_AND_ASSERT_MES(L_size <= 6 + extra_bits, 0, "Invalid bulletproof L size"); + CHECK_AND_ASSERT_MES(V_size <= (1u<<(L_size-6)), 0, "Invalid bulletproof V/L"); + CHECK_AND_ASSERT_MES(V_size * 2 > (1u<<(L_size-6)), 0, "Invalid bulletproof V/L"); + CHECK_AND_ASSERT_MES(V_size > 0, 0, "Empty bulletproof"); + return V_size; } + size_t n_bulletproof_amounts(const Bulletproof &proof) { return n_bulletproof_amounts_base(proof.L.size(), proof.R.size(), proof.V.size(), BULLETPROOF_MAX_OUTPUTS); } + size_t n_bulletproof_plus_amounts(const BulletproofPlus &proof) { return n_bulletproof_amounts_base(proof.L.size(), proof.R.size(), proof.V.size(), BULLETPROOF_PLUS_MAX_OUTPUTS); } + size_t n_bulletproof_amounts(const std::vector<Bulletproof> &proofs) { size_t n = 0; @@ -254,15 +281,31 @@ namespace rct { return n; } - size_t n_bulletproof_max_amounts(const Bulletproof &proof) + size_t n_bulletproof_plus_amounts(const std::vector<BulletproofPlus> &proofs) + { + size_t n = 0; + for (const BulletproofPlus &proof: proofs) + { + size_t n2 = n_bulletproof_plus_amounts(proof); + CHECK_AND_ASSERT_MES(n2 < std::numeric_limits<uint32_t>::max() - n, 0, "Invalid number of bulletproofs"); + if (n2 == 0) + return 0; + n += n2; + } + return n; + } + + static size_t n_bulletproof_max_amounts_base(size_t L_size, size_t R_size, size_t max_outputs) { - CHECK_AND_ASSERT_MES(proof.L.size() >= 6, 0, "Invalid bulletproof L size"); - CHECK_AND_ASSERT_MES(proof.L.size() == proof.R.size(), 0, "Mismatched bulletproof L/R size"); + CHECK_AND_ASSERT_MES(L_size >= 6, 0, "Invalid bulletproof L size"); + CHECK_AND_ASSERT_MES(L_size == R_size, 0, "Mismatched bulletproof L/R size"); static const size_t extra_bits = 4; - static_assert((1 << extra_bits) == BULLETPROOF_MAX_OUTPUTS, "log2(BULLETPROOF_MAX_OUTPUTS) is out of date"); - CHECK_AND_ASSERT_MES(proof.L.size() <= 6 + extra_bits, 0, "Invalid bulletproof L size"); - return 1 << (proof.L.size() - 6); + CHECK_AND_ASSERT_MES((1 << extra_bits) == max_outputs, 0, "log2(max_outputs) is out of date"); + CHECK_AND_ASSERT_MES(L_size <= 6 + extra_bits, 0, "Invalid bulletproof L size"); + return 1 << (L_size - 6); } + size_t n_bulletproof_max_amounts(const Bulletproof &proof) { return n_bulletproof_max_amounts_base(proof.L.size(), proof.R.size(), BULLETPROOF_MAX_OUTPUTS); } + size_t n_bulletproof_plus_max_amounts(const BulletproofPlus &proof) { return n_bulletproof_max_amounts_base(proof.L.size(), proof.R.size(), BULLETPROOF_PLUS_MAX_OUTPUTS); } size_t n_bulletproof_max_amounts(const std::vector<Bulletproof> &proofs) { @@ -278,4 +321,18 @@ namespace rct { return n; } + size_t n_bulletproof_plus_max_amounts(const std::vector<BulletproofPlus> &proofs) + { + size_t n = 0; + for (const BulletproofPlus &proof: proofs) + { + size_t n2 = n_bulletproof_plus_max_amounts(proof); + CHECK_AND_ASSERT_MES(n2 < std::numeric_limits<uint32_t>::max() - n, 0, "Invalid number of bulletproofs"); + if (n2 == 0) + return 0; + n += n2; + } + return n; + } + } diff --git a/src/ringct/rctTypes.h b/src/ringct/rctTypes.h index dc69990f0..59ed4d6a6 100644 --- a/src/ringct/rctTypes.h +++ b/src/ringct/rctTypes.h @@ -245,8 +245,7 @@ namespace rct { rct::key r1, s1, d1; rct::keyV L, R; - BulletproofPlus(): - A({}), A1({}), B({}), r1({}), s1({}), d1({}) {} + BulletproofPlus() {} BulletproofPlus(const rct::key &V, const rct::key &A, const rct::key &A1, const rct::key &B, const rct::key &r1, const rct::key &s1, const rct::key &d1, const rct::keyV &L, const rct::keyV &R): V({V}), A(A), A1(A1), B(B), r1(r1), s1(s1), d1(d1), L(L), R(R) {} BulletproofPlus(const rct::keyV &V, const rct::key &A, const rct::key &A1, const rct::key &B, const rct::key &r1, const rct::key &s1, const rct::key &d1, const rct::keyV &L, const rct::keyV &R): @@ -276,6 +275,11 @@ namespace rct { size_t n_bulletproof_amounts(const std::vector<Bulletproof> &proofs); size_t n_bulletproof_max_amounts(const std::vector<Bulletproof> &proofs); + size_t n_bulletproof_plus_amounts(const BulletproofPlus &proof); + size_t n_bulletproof_plus_max_amounts(const BulletproofPlus &proof); + size_t n_bulletproof_plus_amounts(const std::vector<BulletproofPlus> &proofs); + size_t n_bulletproof_plus_max_amounts(const std::vector<BulletproofPlus> &proofs); + //A container to hold all signatures necessary for RingCT // rangeSigs holds all the rangeproof data of a transaction // MG holds the MLSAG signature of a transaction @@ -290,6 +294,7 @@ namespace rct { RCTTypeBulletproof = 3, RCTTypeBulletproof2 = 4, RCTTypeCLSAG = 5, + RCTTypeBulletproofPlus = 6, }; enum RangeProofType { RangeProofBorromean, RangeProofBulletproof, RangeProofMultiOutputBulletproof, RangeProofPaddedBulletproof }; struct RCTConfig { @@ -318,7 +323,7 @@ namespace rct { FIELD(type) if (type == RCTTypeNull) return ar.good(); - if (type != RCTTypeFull && type != RCTTypeSimple && type != RCTTypeBulletproof && type != RCTTypeBulletproof2 && type != RCTTypeCLSAG) + if (type != RCTTypeFull && type != RCTTypeSimple && type != RCTTypeBulletproof && type != RCTTypeBulletproof2 && type != RCTTypeCLSAG && type != RCTTypeBulletproofPlus) return false; VARINT_FIELD(txnFee) // inputs/outputs not saved, only here for serialization help @@ -347,7 +352,7 @@ namespace rct { return false; for (size_t i = 0; i < outputs; ++i) { - if (type == RCTTypeBulletproof2 || type == RCTTypeCLSAG) + if (type == RCTTypeBulletproof2 || type == RCTTypeCLSAG || type == RCTTypeBulletproofPlus) { ar.begin_object(); if (!typename Archive<W>::is_saving()) @@ -393,6 +398,7 @@ namespace rct { struct rctSigPrunable { std::vector<rangeSig> rangeSigs; std::vector<Bulletproof> bulletproofs; + std::vector<BulletproofPlus> bulletproofs_plus; std::vector<mgSig> MGs; // simple rct has N, full has 1 std::vector<clsag> CLSAGs; keyV pseudoOuts; //C - for simple rct @@ -409,9 +415,28 @@ namespace rct { return false; if (type == RCTTypeNull) return ar.good(); - if (type != RCTTypeFull && type != RCTTypeSimple && type != RCTTypeBulletproof && type != RCTTypeBulletproof2 && type != RCTTypeCLSAG) + if (type != RCTTypeFull && type != RCTTypeSimple && type != RCTTypeBulletproof && type != RCTTypeBulletproof2 && type != RCTTypeCLSAG && type != RCTTypeBulletproofPlus) return false; - if (type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG) + if (type == RCTTypeBulletproofPlus) + { + uint32_t nbp = bulletproofs_plus.size(); + VARINT_FIELD(nbp) + ar.tag("bpp"); + ar.begin_array(); + if (nbp > outputs) + return false; + PREPARE_CUSTOM_VECTOR_SERIALIZATION(nbp, bulletproofs_plus); + for (size_t i = 0; i < nbp; ++i) + { + FIELDS(bulletproofs_plus[i]) + if (nbp - i > 1) + ar.delimit_array(); + } + if (n_bulletproof_plus_max_amounts(bulletproofs_plus) < outputs) + return false; + ar.end_array(); + } + else if (type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG) { uint32_t nbp = bulletproofs.size(); if (type == RCTTypeBulletproof2 || type == RCTTypeCLSAG) @@ -449,7 +474,7 @@ namespace rct { ar.end_array(); } - if (type == RCTTypeCLSAG) + if (type == RCTTypeCLSAG || type == RCTTypeBulletproofPlus) { ar.tag("CLSAGs"); ar.begin_array(); @@ -540,7 +565,7 @@ namespace rct { } ar.end_array(); } - if (type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG) + if (type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG || type == RCTTypeBulletproofPlus) { ar.tag("pseudoOuts"); ar.begin_array(); @@ -561,6 +586,7 @@ namespace rct { BEGIN_SERIALIZE_OBJECT() FIELD(rangeSigs) FIELD(bulletproofs) + FIELD(bulletproofs_plus) FIELD(MGs) FIELD(CLSAGs) FIELD(pseudoOuts) @@ -571,12 +597,12 @@ namespace rct { keyV& get_pseudo_outs() { - return type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG ? p.pseudoOuts : pseudoOuts; + return type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG || type == RCTTypeBulletproofPlus ? p.pseudoOuts : pseudoOuts; } keyV const& get_pseudo_outs() const { - return type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG ? p.pseudoOuts : pseudoOuts; + return type == RCTTypeBulletproof || type == RCTTypeBulletproof2 || type == RCTTypeCLSAG || type == RCTTypeBulletproofPlus ? p.pseudoOuts : pseudoOuts; } BEGIN_SERIALIZE_OBJECT() @@ -688,7 +714,9 @@ namespace rct { bool is_rct_simple(int type); bool is_rct_bulletproof(int type); + bool is_rct_bulletproof_plus(int type); bool is_rct_borromean(int type); + bool is_rct_clsag(int type); static inline const rct::key &pk2rct(const crypto::public_key &pk) { return (const rct::key&)pk; } static inline const rct::key &sk2rct(const crypto::secret_key &sk) { return (const rct::key&)sk; } @@ -744,6 +772,7 @@ VARIANT_TAG(debug_archive, rct::Bulletproof, "rct::bulletproof"); VARIANT_TAG(debug_archive, rct::multisig_kLRki, "rct::multisig_kLRki"); VARIANT_TAG(debug_archive, rct::multisig_out, "rct::multisig_out"); VARIANT_TAG(debug_archive, rct::clsag, "rct::clsag"); +VARIANT_TAG(debug_archive, rct::BulletproofPlus, "rct::bulletproof_plus"); VARIANT_TAG(binary_archive, rct::key, 0x90); VARIANT_TAG(binary_archive, rct::key64, 0x91); @@ -761,6 +790,7 @@ VARIANT_TAG(binary_archive, rct::Bulletproof, 0x9c); VARIANT_TAG(binary_archive, rct::multisig_kLRki, 0x9d); VARIANT_TAG(binary_archive, rct::multisig_out, 0x9e); VARIANT_TAG(binary_archive, rct::clsag, 0x9f); +VARIANT_TAG(binary_archive, rct::BulletproofPlus, 0xa0); VARIANT_TAG(json_archive, rct::key, "rct_key"); VARIANT_TAG(json_archive, rct::key64, "rct_key64"); @@ -778,5 +808,6 @@ VARIANT_TAG(json_archive, rct::Bulletproof, "rct_bulletproof"); VARIANT_TAG(json_archive, rct::multisig_kLRki, "rct_multisig_kLR"); VARIANT_TAG(json_archive, rct::multisig_out, "rct_multisig_out"); VARIANT_TAG(json_archive, rct::clsag, "rct_clsag"); +VARIANT_TAG(json_archive, rct::BulletproofPlus, "rct_bulletproof_plus"); #endif /* RCTTYPES_H */ |