BlockPI Network
Search
⌃K

klay_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.
NOTE: The address to sign with must be unlocked.

Parameters

Name
Type
Description
account
20-byte DATA
Address
message
N-byte DATA
Message to sign

Return Value

Type
Description
DATA
Signature

Example

// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"klay_sign","params":["0x9b2055d370f73ec7d8a03e965129118dc8f5bf83", "0xdeadbeaf"],"id":1}' http://klaytn.blockpi.network/v1/rpc/your-api-key
​
// Result
{
"jsonrpc": "2.0",
"id":1,
"result": "0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
}