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Update ZKInputs for empty batches

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- Add TestZKInputsEmpty circom test vectors
- Fix ZKInputsHash OldLastIdx bytearray
This commit is contained in:
arnaucube
2020-12-23 11:01:20 +01:00
parent a50bda3f59
commit 2583d35adf
3 changed files with 33 additions and 20 deletions
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5
common/zk.go
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@@ -431,8 +431,9 @@ func (z ZKInputs) ToHashGlobalData() ([]byte, error) {
// [MAX_NLEVELS bits] oldLastIdx // [MAX_NLEVELS bits] oldLastIdx
oldLastIdx := make([]byte, bytesMaxLevels) oldLastIdx := make([]byte, bytesMaxLevels)
copy(oldLastIdx, z.OldLastIdx.Bytes()) oldLastIdxBytes := z.OldLastIdx.Bytes()
b = append(b, SwapEndianness(oldLastIdx)...) copy(oldLastIdx[len(oldLastIdx)-len(oldLastIdxBytes):], oldLastIdxBytes)
b = append(b, oldLastIdx...)
// [MAX_NLEVELS bits] newLastIdx // [MAX_NLEVELS bits] newLastIdx
newLastIdx := make([]byte, bytesMaxLevels) newLastIdx := make([]byte, bytesMaxLevels)

1
db/statedb/txprocessors.go
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@@ -96,6 +96,7 @@ func (s *StateDB) ProcessTxs(ptc ProcessTxsConfig, coordIdxs []common.Idx, l1use
s.zki = common.NewZKInputs(ptc.MaxTx, ptc.MaxL1Tx, ptc.MaxTx, ptc.MaxFeeTx, ptc.NLevels, s.currentBatch.BigInt()) s.zki = common.NewZKInputs(ptc.MaxTx, ptc.MaxL1Tx, ptc.MaxTx, ptc.MaxFeeTx, ptc.NLevels, s.currentBatch.BigInt())
s.zki.OldLastIdx = s.idx.BigInt() s.zki.OldLastIdx = s.idx.BigInt()
s.zki.OldStateRoot = s.mt.Root().BigInt() s.zki.OldStateRoot = s.mt.Root().BigInt()
s.zki.Metadata.NewLastIdxRaw = s.idx
} }
// TBD if ExitTree is only in memory or stored in disk, for the moment // TBD if ExitTree is only in memory or stored in disk, for the moment

47
db/statedb/zkinputsgen_test.go
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