ox
Version:
48 lines • 1.77 kB
JavaScript
import * as Hash from './Hash.js';
import * as Hex from './Hex.js';
/**
* Encodes data with a validator in [ERC-191 format](https://eips.ethereum.org/EIPS/eip-191#version-0x00): `0x19 ‖ 0x00 ‖ <intended validator address> ‖ <data to sign>`.
*
* @example
* ```ts twoslash
* import { Hex, ValidatorData } from 'ox'
*
* const encoded = ValidatorData.encode({
* data: Hex.fromString('hello world'),
* validator: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045',
* })
* // @log: '0x1900d8da6bf26964af9d7eed9e03e53415d37aa9604568656c6c6f20776f726c64'
* // @log: '0x19 ‖ 0x00 ‖ 0xd8da6bf26964af9d7eed9e03e53415d37aa96045 ‖ "hello world"'
* ```
*
* @param value - The data to encode.
* @returns The encoded personal sign message.
*/
export function encode(value) {
const { data, validator } = value;
return Hex.concat(
// Validator Data Format: `0x19 ‖ 0x00 ‖ <intended validator address> ‖ <data to sign>`
'0x19', '0x00', validator, Hex.from(data));
}
/**
* Gets the payload to use for signing [ERC-191 formatted](https://eips.ethereum.org/EIPS/eip-191#0x00) data with an intended validator.
*
* @example
* ```ts twoslash
* import { Hex, Secp256k1, ValidatorData } from 'ox'
*
* const payload = ValidatorData.getSignPayload({ // [!code focus]
* data: Hex.fromString('hello world'), // [!code focus]
* validator: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045', // [!code focus]
* }) // [!code focus]
*
* const signature = Secp256k1.sign({ payload, privateKey: '0x...' })
* ```
*
* @param value - The data to get the sign payload for.
* @returns The payload to use for signing.
*/
export function getSignPayload(value) {
return Hash.keccak256(encode(value));
}
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