@li0ard/kuznyechik/dist/modes/mac.js

Kuznyechik cipher implementation in pure TypeScript

import { BLOCK_SIZE, Kuznyechik } from "../";
import { mac as mac_ } from "@li0ard/gost3413";
/**
 * Compute MAC (CMAC/OMAC) with Kuznyechik cipher
 * @param key Encryption key
 * @param data Input data
 */
export const mac = (key, data) => {
    const cipher = new Kuznyechik(key);
    const encrypter = (buf) => cipher.encryptBlock(buf);
    return mac_(encrypter, BLOCK_SIZE, data);
};