# yarn add simple-encrypt-decrypt

    const assert = require('assert');
    const crypto = require('simple-encrypt-decrypt');
    const {
        encrypt,
        decrypt
    } = crypto('mcpT)(_C-5n=nv"/t~4zBGtnx8/.YTSU'); // 32 byte key

    assert.strictEqual(decrypt(encrypt('encrypt')), 'encrypt');
    assert.strictEqual(decrypt(encrypt('mcpT)(_C-5n=nv"/t~4zBGtnx8/.YTSU')), 'mcpT)(_C-5n=nv"/t~4zBGtnx8/.YTSU');