googleapis_auth/test/crypto/rsa_test.dart

// Copyright 2021 Google LLC
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd

import 'package:googleapis_auth/src/crypto/rsa.dart' as rsa;
import 'package:test/test.dart';

import '../test_utils.dart';

/// 2 << 64
final _bigNumber = BigInt.parse('20000000000000000', radix: 16);

void main() {
  test('integer2Bytes converts BigInt to byte list', () {
    expect(rsa.integer2Bytes(BigInt.one, 1), [1]);
    expect(rsa.integer2Bytes(_bigNumber, 9), [2, 0, 0, 0, 0, 0, 0, 0, 0]);
    expect(rsa.integer2Bytes(_bigNumber, 12), [
      0,
      0,
      0,
      2,
      0,
      0,
      0,
      0,
      0,
      0,
      0,
      0,
    ]);
    expect(() => rsa.integer2Bytes(BigInt.zero, 1), throwsArgumentError);
  });

  test('bytes2BigInt converts byte list to BigInt', () {
    expect(rsa.bytes2BigInt([1]), BigInt.one);
    expect(rsa.bytes2BigInt([2, 0, 0, 0, 0, 0, 0, 0, 0]), _bigNumber);
  });

  test('rawSign performs raw RSA signing', () {
    final encryptedData = [
      155, 24, 116, 247, 12, 118, 240, 206, 240, 138, 136, 193, 3, 73, //!!
      241, 63, 212, 100, 97, 46, 55, 113, 119, 95, 240, 219, 136, 211, 3, 4,
      43, 137, 213, 92, 233, 57, 172, 80, 179, 117, 83, 88, 249, 75, 17, 20,
      195, 51, 25, 97, 248, 217, 41, 117, 55, 63, 5, 252, 42, 133, 82, 73, 52,
      219, 255, 38, 137, 209, 83, 57, 245, 188, 180, 233, 249, 144, 100, 153,
      145, 14, 94, 2, 229, 165, 131, 178, 195, 178, 95, 244, 153, 196, 130,
      39, 158, 143, 98, 181, 223, 184, 68, 198, 201, 203, 89, 15, 41, 185,
      226, 64, 226, 161, 43, 228, 90, 58, 152, 203, 142, 133, 113, 120, 97,
      78, 149, 86, 214, 135, 29, 29, 190, 16, 47, 210, 1, 213, 86, 100, 116,
      187, 11, 255, 224, 6, 6, 206, 60, 138, 24, 179, 245, 248, 200, 45, 167,
      100, 78, 131, 204, 120, 22, 73, 116, 127, 65, 201, 15, 177, 250, 4, 73,
      245, 67, 119, 21, 54, 255, 227, 206, 37, 216, 13, 8, 109, 238, 215, 22,
      63, 163, 155, 33, 148, 254, 113, 17, 68, 65, 48, 82, 43, 240, 249, 87,
      19, 87, 162, 148, 169, 93, 22, 135, 125, 134, 187, 48, 93, 52, 20, 182,
      56, 93, 0, 175, 193, 213, 144, 29, 44, 240, 226, 91, 54, 178, 241, 240,
      85, 53, 148, 172, 138, 107, 131, 14, 157, 183, 137, 46, 130, 51, 233,
      26, 217, 230, 133, 217, 76,
    ];
    expect(
      rsa.rawSign(testPrivateKey, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 256),
      encryptedData,
    );
  });
}