SignatureUtils (core 1.3-SNAPSHOT API)

java.lang.Object

i5.las2peer.registry.SignatureUtils

public class SignatureUtils extends Object

Constructor Summary

Constructors

Constructor

Description

SignatureUtils()
Method Summary

Modifier and Type

Method

Description

static byte[]

signFunctionCall(org.web3j.abi.datatypes.Function functionCall, org.web3j.crypto.Credentials credentials)

Returns signature of encoded Ethereum function call.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- SignatureUtils
  
  public SignatureUtils()
Method Details
- signFunctionCall
  
  public static byte[] signFunctionCall(org.web3j.abi.datatypes.Function functionCall, org.web3j.crypto.Credentials credentials)
  
  Returns signature of encoded Ethereum function call. The message is derived from the function selector (a.k.a. method ID) and the arguments. This is hashed. Then prefixed with an Ethereum specific prefix. Then hashed again. Then signed. (The last three steps happen in Web3J: Sign.signPrefixedMessage(byte[], ECKeyPair).)
  Parameters:
  
  functionCall - Ethereum contract function call representation, including arguments
  
  credentials - credentials with key pair used for signing
  
  Returns:
  
  signature as a single byte array, as used for ECRecover
  
  See Also:
  
  Encoding spec