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| author | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2018-10-19 11:15:31 +0000 |
|---|---|---|
| committer | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2018-10-23 21:03:18 +0000 |
| commit | d6937e373b32628fff414c7d8a07e4323593c6a0 (patch) | |
| tree | ae3a73d35bf52c29d3560c8af83ec4b7aa4902c6 /src/ringct | |
| parent | Merge pull request #4697 (diff) | |
| download | monero-d6937e373b32628fff414c7d8a07e4323593c6a0.tar.xz | |
ringct: use dummy bulletproofs when in fake mode, for speed
Diffstat (limited to 'src/ringct')
| -rw-r--r-- | src/ringct/rctSigs.cpp | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/src/ringct/rctSigs.cpp b/src/ringct/rctSigs.cpp index 0d1789a38..181e89c45 100644 --- a/src/ringct/rctSigs.cpp +++ b/src/ringct/rctSigs.cpp @@ -44,6 +44,19 @@ using namespace std; #define CHECK_AND_ASSERT_MES_L1(expr, ret, message) {if(!(expr)) {MCERROR("verify", message); return ret;}} +namespace +{ + rct::Bulletproof make_dummy_bulletproof(size_t n_outs) + { + const rct::key I = rct::identity(); + size_t nrl = 0; + while ((1u << nrl) < n_outs) + ++nrl; + nrl += 6; + 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}; + } +} + namespace rct { Bulletproof proveRangeBulletproof(key &C, key &mask, uint64_t amount) { @@ -762,10 +775,20 @@ namespace rct { if (range_proof_type == RangeProofPaddedBulletproof) { rct::keyV C, masks; - rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, outamounts)); - #ifdef DBG - CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); - #endif + if (hwdev.get_mode() == hw::device::TRANSACTION_CREATE_FAKE) + { + // use a fake bulletproof for speed + rv.p.bulletproofs.push_back(make_dummy_bulletproof(outamounts.size())); + C = rct::keyV(outamounts.size(), I); + masks = rct::keyV(outamounts.size(), I); + } + else + { + rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, outamounts)); + #ifdef DBG + CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); + #endif + } for (i = 0; i < outamounts.size(); ++i) { rv.outPk[i].mask = rct::scalarmult8(C[i]); @@ -782,10 +805,20 @@ namespace rct { std::vector<uint64_t> batch_amounts(batch_size); for (i = 0; i < batch_size; ++i) batch_amounts[i] = outamounts[i + amounts_proved]; - rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, batch_amounts)); - #ifdef DBG - CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); - #endif + 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.size())); + C = rct::keyV(batch_amounts.size(), I); + masks = rct::keyV(batch_amounts.size(), I); + } + else + { + rv.p.bulletproofs.push_back(proveRangeBulletproof(C, masks, batch_amounts)); + #ifdef DBG + CHECK_AND_ASSERT_THROW_MES(verBulletproof(rv.p.bulletproofs.back()), "verBulletproof failed on newly created proof"); + #endif + } for (i = 0; i < batch_size; ++i) { rv.outPk[i + amounts_proved].mask = rct::scalarmult8(C[i]); |