3 files changed, 51 insertions, 2 deletions
diff --git a/rpc/api.go b/rpc/api.go
index 6a629ce8e..309c161ad 100644
--- a/rpc/api.go
+++ b/rpc/api.go
@@ -158,6 +158,17 @@ func (api *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) err
 		v := api.xethAtStateNum(args.BlockNumber).CodeAtBytes(args.Address)
 		*reply = newHexData(v)
 
+	case "eth_sign":
+		args := new(NewSigArgs)
+		if err := json.Unmarshal(req.Params, &args); err != nil {
+			return err
+		}
+		v, err := api.xeth().Sign(args.From, args.Data, false)
+		if err != nil {
+			return err
+		}
+		*reply = v
+
 	case "eth_sendTransaction", "eth_transact":
 		args := new(NewTxArgs)
 		if err := json.Unmarshal(req.Params, &args); err != nil {
diff --git a/rpc/args.go b/rpc/args.go
index 58a750415..686872a59 100644
--- a/rpc/args.go
+++ b/rpc/args.go
@@ -166,6 +166,46 @@ type NewTxArgs struct {
 	BlockNumber int64
 }
 
+type NewSigArgs struct {
+	From string
+	Data string
+}
+
+func (args *NewSigArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []json.RawMessage
+	var ext struct {
+		From string
+		Data string
+	}
+
+	// Decode byte slice to array of RawMessages
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return NewDecodeParamError(err.Error())
+	}
+
+	// Check for sufficient params
+	if len(obj) < 1 {
+		return NewInsufficientParamsError(len(obj), 1)
+	}
+
+	// Decode 0th RawMessage to temporary struct
+	if err := json.Unmarshal(obj[0], &ext); err != nil {
+		return NewDecodeParamError(err.Error())
+	}
+
+	if len(ext.From) == 0 {
+		return NewValidationError("from", "is required")
+	}
+
+	if len(ext.Data) == 0 {
+		return NewValidationError("data", "is required")
+	}
+
+	args.From = ext.From
+	args.Data = ext.Data
+	return nil
+}
+
 func (args *NewTxArgs) UnmarshalJSON(b []byte) (err error) {
 	var obj []json.RawMessage
 	var ext struct {
diff --git a/rpc/jeth.go b/rpc/jeth.go
index a08f9be8f..2097ac30d 100644
--- a/rpc/jeth.go
+++ b/rpc/jeth.go
@@ -3,7 +3,6 @@ package rpc
 import (
 	"encoding/json"
 	"fmt"
-
 	"github.com/ethereum/go-ethereum/jsre"
 	"github.com/robertkrimen/otto"
 )
@@ -36,7 +35,6 @@ func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value) {
 	}
 
 	jsonreq, err := json.Marshal(reqif)
-
 	var reqs []RpcRequest
 	batch := true
 	err = json.Unmarshal(jsonreq, &reqs)