javascript/subtle/ecies_aead_hkdf_hybrid_encrypt_test.js

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////

goog.module('tink.subtle.EciesAeadHkdfHybridEncryptTest');
goog.setTestOnly('tink.subtle.EciesAeadHkdfHybridEncryptTest');

const AeadConfig = goog.require('tink.aead.AeadConfig');
const AeadKeyTemplates = goog.require('tink.aead.AeadKeyTemplates');
const EllipticCurves = goog.require('google3.third_party.tink.javascript.subtle.elliptic_curves');
const Random = goog.require('google3.third_party.tink.javascript.subtle.random');
const Registry = goog.require('google3.third_party.tink.javascript.internal.registry');
const RegistryEciesAeadHkdfDemHelper = goog.require('tink.hybrid.RegistryEciesAeadHkdfDemHelper');
const {fromJsonWebKey} = goog.require('google3.third_party.tink.javascript.subtle.ecies_aead_hkdf_hybrid_encrypt');

describe('ecies aead hkdf hybrid encrypt test', function() {
  beforeEach(function() {
    AeadConfig.register();
    // Use a generous promise timeout for running continuously.
    jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000 * 1000;  // 1000s
  });

  afterEach(function() {
    Registry.reset();
    // Reset the timeout.
    jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000;  // 1s
  });

  it('new instance, should work', async function() {
    const keyPair = await EllipticCurves.generateKeyPair('ECDH', 'P-256');
    const publicKey = await EllipticCurves.exportCryptoKey(keyPair.publicKey);
    const hkdfHash = 'SHA-256';
    const pointFormat = EllipticCurves.PointFormatType.UNCOMPRESSED;
    const demHelper = new RegistryEciesAeadHkdfDemHelper(
        AeadKeyTemplates.aes128CtrHmacSha256());

    await fromJsonWebKey(publicKey, hkdfHash, pointFormat, demHelper);
  });

  it('encrypt, different arguments', async function() {
    const hkdfSalt = new Uint8Array(0);
    const pointFormat = EllipticCurves.PointFormatType.UNCOMPRESSED;
    const demHelper = new RegistryEciesAeadHkdfDemHelper(
        AeadKeyTemplates.aes256CtrHmacSha256());
    const hmacAlgorithms = ['SHA-1', 'SHA-256', 'SHA-512'];

    // Test the encryption for different HMAC algorithms and different types of
    // curves.
    for (let hkdfHash of hmacAlgorithms) {
      for (let curve
               of [EllipticCurves.CurveType.P256, EllipticCurves.CurveType.P384,
                   EllipticCurves.CurveType.P521]) {
        const curveName = EllipticCurves.curveToString(curve);
        const keyPair = await EllipticCurves.generateKeyPair('ECDH', curveName);
        const publicKey =
            await EllipticCurves.exportCryptoKey(keyPair.publicKey);

        const hybridEncrypt = await fromJsonWebKey(
            publicKey, hkdfHash, pointFormat, demHelper, hkdfSalt);

        const plaintext = Random.randBytes(15);
        const ciphertext = await hybridEncrypt.encrypt(plaintext);

        expect(ciphertext).not.toEqual(plaintext);
      }
    }
  });
});