async function main() {
    const c = global.crypto;
    const algorithm = {
        name: "HKDF",
        hash: "SHA-256",
        salt: c.getRandomValues(new Int8Array(32)),
        info: Buffer.alloc(1).buffer
    };
    const key = await global.crypto.subtle.importKey(
        'raw',
        c.getRandomValues(new Int8Array(32)),
        'HKDF',
        false,
        ['deriveKey']
    );
    const derivedKeyAlgorithm = {
        name: "HMAC",
        hash: "SHA-256",
        length: 256
    };
    const keyUsages = ['sign', 'verify'];
    c.subtle.deriveKey(algorithm, key, derivedKeyAlgorithm, false, keyUsages);
}
main();