eip191-signer.js · 
@lukso/eip191-signer.js
Helper library to sign any EIP191 data.
For more information see Documentation.
Getting Started
The @lukso/eip191-signer.js package is used to sign messages according to the EIP191 standard.
If you want to sign with the version 0x45, then use the function signEthereumSignedMessage.
If you want to sign with the version 0x00, then use the function signDataWithIntendedValidator.
Install
npm install @lukso/eip191-signer.jsUsage
import { EIP191Signer } from '@lukso/eip191-signer.js';
const eip191Signer = new EIP191Signer();hashEthereumSignedMessage
eip191Signer.hashEthereumSignedMessage(message);Hashes the given message with the version 0x45.
The message will be enveloped as follows: '\x19' + '\x45' + 'thereum Signed Message:\n' + messageBytes.length + message and hashed using keccak256.
hashDataWithIntendedValidator
eip191Signer.hashDataWithIntendedValidator(validatorAddress, message);Hashes the given message with the version 0x00.
The message will be enveloped as follows: '\x19' + '\x00' + validatorAddress + message and hashed using keccak256.
signEthereumSignedMessage
eip191Signer.signEthereumSignedMessage(message, signingKey);This method is for signing a message with the version 0x45.
The message passed as parameter will be wrapped as follows: '\x19' + '\x45' + 'thereum Signed Message:\n' + messageBytes.length + message.
signDataWithIntendedValidator
eip191Signer.signDataWithIntendedValidator(
validatorAddress,
message,
signingKey,
);This method is for signing a message with the version 0x00.
The message passed as parameter will be wrapped as follows: '\x19' + '\x00' + validatorAddress + message.
recover
eip191Signer.recover(messageHash, signature);Recovers the address which was used to sign the given message.
Contributing
Please check CONTRIBUTING.md.
License
eip191-signer.js is Apache 2.0 licensed.
Contributors
 Magali Morin |
 Fabian Vogelsteller |
 Callum Grindle |
 Hugo Masclet |