| // 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.HkdfTest'); |
| goog.setTestOnly('tink.subtle.HkdfTest'); |
| |
| const Bytes = goog.require('tink.subtle.Bytes'); |
| const Hkdf = goog.require('tink.subtle.Hkdf'); |
| const Random = goog.require('tink.subtle.Random'); |
| |
| describe('hkdf test', function() { |
| it('constructor', async function() { |
| const ikm = Random.randBytes(16); |
| const info = Random.randBytes(16); |
| try { |
| await Hkdf.compute(0, 'SHA-256', ikm, info); // 0 output size |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()) |
| .toBe('InvalidArgumentsException: size must be positive'); |
| } |
| |
| try { |
| await Hkdf.compute(-1, 'SHA-256', ikm, info); // negative output size |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()) |
| .toBe('InvalidArgumentsException: size must be positive'); |
| } |
| |
| try { |
| await Hkdf.compute( |
| /** 255 * digestSize + 1 */ (255 * 20) + 1, 'SHA-1', ikm, |
| info); // size too large |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()).toBe('InvalidArgumentsException: size too large'); |
| } |
| |
| try { |
| await Hkdf.compute( |
| /** 255 * digestSize + 1 */ (255 * 32) + 1, 'SHA-256', ikm, |
| info); // size too large |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()).toBe('InvalidArgumentsException: size too large'); |
| } |
| |
| try { |
| await Hkdf.compute( |
| /** 255 * digestSize + 1 */ (255 * 64) + 1, 'SHA-512', ikm, |
| info); // size too large |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()).toBe('InvalidArgumentsException: size too large'); |
| } |
| }); |
| |
| it('constructor, non integer output size', async function() { |
| const ikm = Random.randBytes(16); |
| const info = Random.randBytes(16); |
| try { |
| await Hkdf.compute(NaN, 'SHA-256', ikm, info); |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()) |
| .toBe('InvalidArgumentsException: size must be an integer'); |
| } |
| |
| try { |
| await Hkdf.compute(1.5, 'SHA-256', ikm, info); |
| fail('Should throw an exception.'); |
| } catch (e) { |
| expect(e.toString()) |
| .toBe('InvalidArgumentsException: size must be an integer'); |
| } |
| }); |
| |
| it('with test vectors', async function() { |
| // Test cases are specified in Appendix A of RFC 5869. |
| const TEST_VECTORS = [ |
| { |
| 'hash': 'SHA-256', |
| 'output': |
| '3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865', |
| 'outputSize': 42, |
| 'ikm': '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b', |
| 'salt': '000102030405060708090a0b0c', |
| 'info': 'f0f1f2f3f4f5f6f7f8f9', |
| }, |
| { |
| 'hash': 'SHA-256', |
| 'output': |
| 'b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c' + |
| '59045a99cac7827271cb41c65e590e09da3275600c2f09b8367793a9aca3db71' + |
| 'cc30c58179ec3e87c14c01d5c1f3434f1d87', |
| 'outputSize': 82, |
| 'ikm': |
| '000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f' + |
| '202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f' + |
| '404142434445464748494a4b4c4d4e4f', |
| 'salt': |
| '606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f' + |
| '808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f' + |
| 'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf', |
| 'info': |
| 'b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecf' + |
| 'd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeef' + |
| 'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff', |
| }, |
| // Salt is empty |
| { |
| 'hash': 'SHA-256', |
| 'output': |
| '8da4e775a563c18f715f802a063c5a31b8a11f5c5ee1879ec3454e5f3c738d2d' + |
| '9d201395faa4b61a96c8', |
| 'outputSize': 42, |
| 'ikm': '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b', |
| 'salt': '', |
| 'info': '', |
| }, |
| { |
| 'hash': 'SHA-1', |
| 'output': |
| '085a01ea1b10f36933068b56efa5ad81a4f14b822f5b091568a9cdd4f155fda2c22e422478d305f3f896', |
| 'outputSize': 42, |
| 'ikm': '0b0b0b0b0b0b0b0b0b0b0b', |
| 'salt': '000102030405060708090a0b0c', |
| 'info': 'f0f1f2f3f4f5f6f7f8f9', |
| }, |
| { |
| 'hash': 'SHA-1', |
| 'output': |
| '0bd770a74d1160f7c9f12cd5912a06ebff6adcae899d92191fe4305673ba2ffe' + |
| '8fa3f1a4e5ad79f3f334b3b202b2173c486ea37ce3d397ed034c7f9dfeb15c5e' + |
| '927336d0441f4c4300e2cff0d0900b52d3b4', |
| 'outputSize': 82, |
| 'ikm': |
| '000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f' + |
| '202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f' + |
| '404142434445464748494a4b4c4d4e4f', |
| 'salt': |
| '606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f' + |
| '808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f' + |
| 'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf', |
| 'info': |
| 'b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecf' + |
| 'd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeef' + |
| 'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff', |
| }, |
| // Salt is empty |
| { |
| 'hash': 'SHA-1', |
| 'output': |
| '0ac1af7002b3d761d1e55298da9d0506b9ae52057220a306e07b6b87e8df21d0' + |
| 'ea00033de03984d34918', |
| 'outputSize': 42, |
| 'ikm': '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b', |
| 'salt': '', |
| 'info': '', |
| }, |
| // Salt is empty |
| { |
| 'hash': 'SHA-1', |
| 'output': |
| '2c91117204d745f3500d636a62f64f0ab3bae548aa53d423b0d1f27ebba6f5e5' + |
| '673a081d70cce7acfc48', |
| 'outputSize': 42, |
| 'ikm': '0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c', |
| 'salt': '', |
| 'info': '', |
| }, |
| ]; |
| for (let i = 0; i < TEST_VECTORS.length; i++) { |
| const testVector = TEST_VECTORS[i]; |
| const ikm = Bytes.fromHex(testVector['ikm']); |
| const salt = Bytes.fromHex(testVector['salt']); |
| const info = Bytes.fromHex(testVector['info']); |
| const hkdf = await Hkdf.compute( |
| testVector['outputSize'], testVector['hash'], ikm, info, salt); |
| expect(testVector['output']).toBe(Bytes.toHex(hkdf)); |
| } |
| }); |
| }); |