personal_sign

The sign method calculates a Klaytn-specific signature with: sign(keccak256("\x19Klaytn Signed Message:\n" + len(message) + message)))

Adding a prefix to the message makes the calculated signature recognizable as a Klaytn-specific signature. This prevents misuse where a malicious DApp can sign arbitrary data (e.g., transaction) and use the signature to impersonate the victim.

See personal_ecRecover to verify the signature.

JSONRPC: personal_sign

Request

application/json

Body

method stringrequired

Default value: personal_sign

Method name

id int64required

Default value: 1

Request ID, Random or Auto incrementation

jsonrpc stringrequired

Default value: 2.0

JSON-RPC Version (2.0)

params

undefined[]

required

Array [

Message Message

A message to sign.

Account Account

The account address.

Password Password

The pass phrase used for signing.

]

Responses

200

Return the a signature.

application/json

Schema

Schema

jsonrpc stringrequired

Default value: 2.0

id int64required

error

object

code int64required

A Number that indicates the error type that occurred. This MUST be an integer.

| code | message | description | |-----|-----|-------| | -32700 | Parse error | invalid JSON was received by the server. An error occurred on the server while parsing the JSON text. | |-32602 | Invalid params | Invalid method parameter(s). |

message string

A String providing a short description of the error. The message SHOULD be limited to a concise single sentence.

data string

A Primitive or Structured value that contains additional information about the error. This may be omitted. The value of this member is defined by the Server (e.g. detailed error information, nested errors etc.).

result string

A signature.

Example (from schema)

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32700,
    "message": "Parse error",
    "data": "string"
  },
  "result": "0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
}

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