fix: Make crypto key check work in different node versions

[pawanpaudel93]

Summary

This PR makes aesKey instanceof crypto.webcrypto.CryptoKey work on different node versions. For example, crypto.webcrypto.CryptoKey is undefined on node v20+.

Note

• I am just fixing the instanceof issue on node v20+.
• But we could also remove the isCryptoKey as aesKey is an ArrayBuffer so isCryptoKey(aesKey) is always false.

How To Test

• [Without Fix] Run this in different node versions. (For eg: You could test in node 18 (Success) and 20 (Fails))

import crypto from 'crypto';

function isCryptoKey(obj) {
    return obj instanceof crypto.webcrypto.CryptoKey;
}

async function generateKey() {
    return await crypto.webcrypto.subtle.generateKey(
        {
            name: 'AES-GCM',
            length: 256,
        },
        true,
        ['encrypt', 'decrypt']
    );
}

async function checkIfCryptoKey() {
    const key = await generateKey();
    console.log(isCryptoKey(key));
}

checkIfCryptoKey().catch(console.error);

• [With Fix] Run this in different node versions. (For eg: You could test in node 18 (Success) and 20 (Success))

import crypto from 'crypto';

function isCryptoKey(obj) {
    try {
        return obj instanceof CryptoKey;
    } catch (e) {
        return obj instanceof crypto.webcrypto.CryptoKey;
    }
}

async function generateKey() {
    return await crypto.webcrypto.subtle.generateKey(
        {
            name: 'AES-GCM',
            length: 256,
        },
        true,
        ['encrypt', 'decrypt']
    );
}

async function checkIfCryptoKey() {
    const key = await generateKey();
    console.log(isCryptoKey(key));
}

checkIfCryptoKey().catch(console.error);