WIP signature

examples/deployAccount/helper.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"github.com/NethermindEth/juno/core/felt"
+	"github.com/NethermindEth/starknet.go/rpcv02"
+)
+
+func signDeployAccountTransaction(tx rpcv02.BroadcastedDeployAccountTransaction, contractAddress *felt.Felt, chainID rpcv02.chainID) {
+	msgHash := calculateDeployAccountTransactionHash(tx, contractAddress, chainId)
+	return starkCurve.sign(msgHash, this.pk)
+}
+
+func calculateDeployAccountTransactionHash(tx rpcv02.BroadcastedDeployAccountTransaction, contractAddress *felt.Felt) *felt.Felt {
+	calldata := []*felt.Felt{tx.ClassHash, tx.ContractAddressSalt}
+	calldata = append(calldata, tx.ConstructorCalldata...)
+
+	return calculateTransactionHashCommon(
+		rpcv02.TransactionHashPrefix.DEPLOY_ACCOUNT,
+		tx.Version,
+		contractAddress,
+		0,
+		tx.ConstructorCalldata,
+		tx.MaxFee,
+		chainID,
+		[]*felt.Felt{tx.Nonce},
+	)
+}
+
+func calculateTransactionHashCommon(
+	txHashPrefix *felt.Felt,
+	version rpcv02.TransactionVersion,
+	contractAddress *felt.Felt,
+	entryPointSelector *felt.Felt,
+	calldata *felt.Felt,
+	maxFee *felt.Felt,
+	chainId rpcv02.chainID,
+	additionalData []*felt.Felt) *felt.Felt {
+	calldataHash := computeHashOnElements(calldata)
+	dataToHash := []*felt.Felt{
+		txHashPrefix,
+		version,
+		contractAddress,
+		entryPointSelector,
+		calldataHash,
+		maxFee,
+		chainId,
+	}
+	dataToHash = append(dataToHash, additionalData...)
+
+	return computeHashOnElements(dataToHash)
+}

examples/deployAccount/main.go

@@ -117,6 +117,7 @@ func main() {
 	// NEXT: construct tx correctly
 	// To Sign
 	// ref : https://github.com/0xs34n/starknet.js/blob/develop/src/signer/default.ts#L63C1-L63C46
+	// signDeployAccountTransaction -> calculateDeployAccountTransactionHash -> calculateTransactionHashCommon -> computeHashOnElements
 
 	tx := rpcv02.BroadcastedDeployAccountTransaction{
 		BroadcastedTxnCommonProperties: rpcv02.BroadcastedTxnCommonProperties{