const aesKW = require('../../src/crypto/aes_kw');
const util = require('../../src/util');

const expect = require('chai').expect;

module.exports = () => describe('AES Key Wrap and Unwrap', function () {
  const test_vectors = [
    [
      '128 bits of Key Data with a 128-bit KEK',
      '000102030405060708090A0B0C0D0E0F',
      '00112233445566778899AABBCCDDEEFF',
      '1FA68B0A8112B447 AEF34BD8FB5A7B82 9D3E862371D2CFE5'
    ],
    [
      '128 bits of Key Data with a 192-bit KEK',
      '000102030405060708090A0B0C0D0E0F1011121314151617',
      '00112233445566778899AABBCCDDEEFF',
      '96778B25AE6CA435 F92B5B97C050AED2 468AB8A17AD84E5D'
    ],
    [
      '128 bits of Key Data with a 256-bit KEK',
      '000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F',
      '00112233445566778899AABBCCDDEEFF',
      '64E8C3F9CE0F5BA2 63E9777905818A2A 93C8191E7D6E8AE7'
    ],
    [
      '192 bits of Key Data with a 192-bit KEK',
      '000102030405060708090A0B0C0D0E0F1011121314151617',
      '00112233445566778899AABBCCDDEEFF0001020304050607',
      '031D33264E15D332 68F24EC260743EDC E1C6C7DDEE725A93 6BA814915C6762D2'
    ],
    [
      '192 bits of Key Data with a 256-bit KEK',
      '000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F',
      '00112233445566778899AABBCCDDEEFF0001020304050607',
      'A8F9BC1612C68B3F F6E6F4FBE30E71E4 769C8B80A32CB895 8CD5D17D6B254DA1'
    ],
    [
      '256 bits of Key Data with a 256-bit KEK',
      '000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F',
      '00112233445566778899AABBCCDDEEFF000102030405060708090A0B0C0D0E0F',
      '28C9F404C4B810F4 CBCCB35CFB87F826 3F5786E2D80ED326 CBC7F0E71A99F43B FB988B9B7A02DD21'
    ]
  ];

  test_vectors.forEach(function(test) {
    it(test[0], function(done) {
      const kek = util.hexToUint8Array(test[1]);
      const input = test[2].replace(/\s/g, '');
      const input_bin = util.uint8ArrayToString(util.hexToUint8Array(input));
      const output = test[3].replace(/\s/g, '');
      const output_bin = util.uint8ArrayToString(util.hexToUint8Array(output));
      expect(util.uint8ArrayToHex(aesKW.wrap(kek, input_bin)).toUpperCase()).to.equal(output);
      expect(util.uint8ArrayToHex(aesKW.unwrap(kek, output_bin)).toUpperCase()).to.equal(input);
      done();
    });
  });
});