antelope-ecc/keys/legacy_from_public_key.js

A universal JavaScript ECC digital signature and key utility package for Antelope based blockchains.

import binary_to_base58 from "base58-js/binary_to_base58";
import ripemd160 from "ripemd160-js/ripemd160.js";
/**
 * Converts a binary representation of the secp256k1 compressed public key to legacy key for an antelope based blockchain.
 * @param {Uin8Array} public_key compressed secp256k1 public key.
 * @param {String} prefix the prefix to add to the start of the public public key.
 * @returns {String} WIF of legacy public key such as EOS, TELOS, WAX.
 */
export default async function legacy_from_public_key(public_key, prefix) {
    if (!prefix)
        throw new Error("Please include a prefix for the WIF public key, e.g EOS, TELOS.");
    const checksum = (await ripemd160(public_key)).slice(0, 4);
    return (prefix + binary_to_base58(Uint8Array.from([...public_key, ...checksum])));
}