mimc hash seed update

plugin/dapp/mix/executor/committree.go

@@ -95,7 +95,7 @@ func getArchiveRoots(db dbm.KV, exec, symbol string, seq uint64) (*mixTy.CommitT
 
 //TODO seed config
 func getNewTree() *merkletree.Tree {
-	return merkletree.New(mimc.NewMiMC("seed"))
+	return merkletree.New(mimc.NewMiMC(mixTy.MimcHashSeed))
 }
 
 func calcTreeRoot(leaves *mixTy.CommitTreeLeaves) []byte {

plugin/dapp/mix/types/authorize.go

@@ -58,7 +58,7 @@ type AuthorizeCircuit struct {
 // Define declares the circuit's constraints
 func (circuit *AuthorizeCircuit) Define(curveID ecc.ID, cs *frontend.ConstraintSystem) error {
 	// hash function
-	h, _ := mimc.NewMiMC("seed", curveID, cs)
+	h, _ := mimc.NewMiMC(MimcHashSeed, curveID, cs)
 	mimc := &h
 	mimc.Write(circuit.AuthorizePriKey)
 	cs.AssertIsEqual(circuit.AuthorizePubKey, mimc.Sum())

plugin/dapp/mix/types/deposit.go

@@ -19,7 +19,7 @@ type DepositCircuit struct {
 
 func (circuit *DepositCircuit) Define(curveID ecc.ID, cs *frontend.ConstraintSystem) error {
 	// hash function
-	mimc, _ := mimc.NewMiMC("seed", curveID, cs)
+	mimc, _ := mimc.NewMiMC(MimcHashSeed, curveID, cs)
 
 	mimc.Write(circuit.ReceiverPubKey, circuit.ReturnPubKey, circuit.AuthorizePubKey, circuit.Amount, circuit.NoteRandom)
 	cs.AssertIsEqual(circuit.NoteHash, mimc.Sum())

plugin/dapp/mix/types/mix.go

@@ -13,6 +13,8 @@ var tlog = log15.New("module", MixX)
 const (
 	//MaxTreeLeaves = 1024
 	TreeLevel = 10
+	//MimcHashSeed 电路不支持作为公共输入，设为全局常数
+	MimcHashSeed = "19172955941344617222923168298456110557655645809646772800021167670156933290312"
 )
 
 // 执行器的日志类型

plugin/dapp/mix/types/transferInput.go

@@ -69,7 +69,7 @@ func (circuit *TransferInputCircuit) Define(curveID ecc.ID, cs *frontend.Constra
 	cs.AssertIsBoolean(circuit.AuthorizeFlag)
 
 	// hash function
-	h, _ := mimc.NewMiMC("seed", curveID, cs)
+	h, _ := mimc.NewMiMC(MimcHashSeed, curveID, cs)
 	mimc := &h
 
 	//verify spend private key

plugin/dapp/mix/types/transferOutput.go

@@ -26,7 +26,7 @@ type TransferOutputCircuit struct {
 // Define declares the circuit's constraints
 func (circuit *TransferOutputCircuit) Define(curveID ecc.ID, cs *frontend.ConstraintSystem) error {
 	// hash function
-	h, _ := mimc.NewMiMC("seed", curveID, cs)
+	h, _ := mimc.NewMiMC(MimcHashSeed, curveID, cs)
 	mimc := &h
 	mimc.Write(circuit.ReceiverPubKey, circuit.ReturnPubKey, circuit.AuthorizePubKey, circuit.Amount, circuit.NoteRandom)
 	cs.AssertIsEqual(circuit.NoteHash, mimc.Sum())

plugin/dapp/mix/types/withdraw.go

@@ -64,7 +64,7 @@ func (circuit *WithdrawCircuit) Define(curveID ecc.ID, cs *frontend.ConstraintSy
 	cs.AssertIsBoolean(circuit.AuthorizeFlag)
 
 	// hash function
-	h, _ := mimc.NewMiMC("seed", curveID, cs)
+	h, _ := mimc.NewMiMC(MimcHashSeed, curveID, cs)
 	mimc := &h
 	mimc.Write(circuit.SpendPriKey)
 	targetSpendKey := cs.Select(circuit.SpendFlag, circuit.ReceiverPubKey, circuit.ReturnPubKey)

plugin/dapp/mix/wallet/cryptokey.go

@@ -140,7 +140,7 @@ func mimcHashByte(params [][]byte) []byte {
 }
 
 func mimcHashCalc(sum []byte) []byte {
-	h := mimc.NewMiMC("seed")
+	h := mimc.NewMiMC(mixTy.MimcHashSeed)
 	h.Write(sum)
 	return h.Sum(nil)
 }