@polkadot/util-crypto/sr25519/vrfSign.js

A collection of useful crypto utilities for @polkadot

import { u8aToU8a } from '@polkadot/util';
import { vrfSign } from '@polkadot/wasm-crypto';
const EMPTY_U8A = new Uint8Array();
/**
 * @name sr25519VrfSign
 * @description Sign with sr25519 vrf signing (deterministic)
 */
export function sr25519VrfSign(message, { secretKey }, context = EMPTY_U8A, extra = EMPTY_U8A) {
    if (secretKey?.length !== 64) {
        throw new Error('Invalid secretKey, expected 64-bytes');
    }
    return vrfSign(secretKey, u8aToU8a(context), u8aToU8a(message), u8aToU8a(extra));
}