public void SettingsChaCha20IncreaseNonceTest()
{
// Arrange
SettingsChaCha20 settingsChaCha20_1 = new SettingsChaCha20(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 }, 1);
byte[] expected1 = new byte[] { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 };
SettingsChaCha20 settingsChaCha20_2 = new SettingsChaCha20(new byte[] { 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0xFF }, 1);
byte[] expected2 = new byte[] { 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0xFF };
SettingsChaCha20 settingsChaCha20_3 = new SettingsChaCha20(new byte[] { 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }, 1);
byte[] expected3 = new byte[] { 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
// Act
settingsChaCha20_1.IncreaseNonce();
settingsChaCha20_2.IncreaseNonce();
settingsChaCha20_3.IncreaseNonce();
// Assert
CollectionAssert.AreEqual(expected1, settingsChaCha20_1.nonce);
CollectionAssert.AreEqual(expected2, settingsChaCha20_2.nonce);
CollectionAssert.AreEqual(expected3, settingsChaCha20_3.nonce);
}
public void ChaCha20Test()
{
// Arrange
SettingsChaCha20 settingsChaCha20 = new SettingsChaCha20(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 }, 1);
SymmetricKeyAlgorithm skaChaCha20 = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.ChaCha20, 256, settingsChaCha20);
byte[] key = new byte[validChaCha20KeyLength] {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
};
const int lengthOfContent2 = 114;
byte[] content = new byte[lengthOfContent2] {
0x4c, 0x61, 0x64, 0x69, 0x65, 0x73, 0x20, 0x61,
0x6e, 0x64, 0x20, 0x47, 0x65, 0x6e, 0x74, 0x6c,
0x65, 0x6d, 0x65, 0x6e, 0x20, 0x6f, 0x66, 0x20,
0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x61, 0x73,
0x73, 0x20, 0x6f, 0x66, 0x20, 0x27, 0x39, 0x39,
0x3a, 0x20, 0x49, 0x66, 0x20, 0x49, 0x20, 0x63,
0x6f, 0x75, 0x6c, 0x64, 0x20, 0x6f, 0x66, 0x66,
0x65, 0x72, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6f,
0x6e, 0x6c, 0x79, 0x20, 0x6f, 0x6e, 0x65, 0x20,
0x74, 0x69, 0x70, 0x20, 0x66, 0x6f, 0x72, 0x20,
0x74, 0x68, 0x65, 0x20, 0x66, 0x75, 0x74, 0x75,
0x72, 0x65, 0x2c, 0x20, 0x73, 0x75, 0x6e, 0x73,
0x63, 0x72, 0x65, 0x65, 0x6e, 0x20, 0x77, 0x6f,
0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x69,
0x74, 0x2e
};
byte[] expected = new byte[lengthOfContent2] {
0x6e, 0x2e, 0x35, 0x9a, 0x25, 0x68, 0xf9, 0x80, 0x41, 0xba, 0x07, 0x28, 0xdd, 0x0d, 0x69, 0x81,
0xe9, 0x7e, 0x7a, 0xec, 0x1d, 0x43, 0x60, 0xc2, 0x0a, 0x27, 0xaf, 0xcc, 0xfd, 0x9f, 0xae, 0x0b,
0xf9, 0x1b, 0x65, 0xc5, 0x52, 0x47, 0x33, 0xab, 0x8f, 0x59, 0x3d, 0xab, 0xcd, 0x62, 0xb3, 0x57,
0x16, 0x39, 0xd6, 0x24, 0xe6, 0x51, 0x52, 0xab, 0x8f, 0x53, 0x0c, 0x35, 0x9f, 0x08, 0x61, 0xd8,
0x07, 0xca, 0x0d, 0xbf, 0x50, 0x0d, 0x6a, 0x61, 0x56, 0xa3, 0x8e, 0x08, 0x8a, 0x22, 0xb6, 0x5e,
0x52, 0xbc, 0x51, 0x4d, 0x16, 0xcc, 0xf8, 0x06, 0x81, 0x8c, 0xe9, 0x1a, 0xb7, 0x79, 0x37, 0x36,
0x5a, 0xf9, 0x0b, 0xbf, 0x74, 0xa3, 0x5b, 0xe6, 0xb4, 0x0b, 0x8e, 0xed, 0xf2, 0x78, 0x5e, 0x42,
0x87, 0x4d
};
// Act
byte[] output = skaChaCha20.EncryptBytes(content, key);
// Assert
CollectionAssert.AreEqual(expected, output);
}
public void CreateSettingsChaCha20WithCryptographicRandomNumbersTest()
{
// Arrange
SettingsChaCha20 settingsChaCha20_1 = SettingsChaCha20.CreateWithCryptographicRandomNumbers();
SettingsChaCha20 settingsChaCha20_2 = SettingsChaCha20.CreateWithCryptographicRandomNumbers();
SettingsChaCha20 settingsChaCha20_3 = SettingsChaCha20.CreateWithCryptographicRandomNumbers();
SettingsChaCha20 settingsChaCha20_4 = SettingsChaCha20.CreateWithCryptographicRandomNumbers();
// Act
// Assert
CollectionAssert.AreNotEqual(settingsChaCha20_1.nonce, settingsChaCha20_2.nonce);
CollectionAssert.AreNotEqual(settingsChaCha20_1.nonce, settingsChaCha20_3.nonce);
CollectionAssert.AreNotEqual(settingsChaCha20_1.nonce, settingsChaCha20_4.nonce);
CollectionAssert.AreNotEqual(settingsChaCha20_2.nonce, settingsChaCha20_3.nonce);
CollectionAssert.AreNotEqual(settingsChaCha20_2.nonce, settingsChaCha20_4.nonce);
CollectionAssert.AreNotEqual(settingsChaCha20_3.nonce, settingsChaCha20_4.nonce);
Assert.AreNotEqual(0, settingsChaCha20_1.counter + settingsChaCha20_2.counter + settingsChaCha20_3.counter + settingsChaCha20_4.counter);
}
public void SettingsChaCha20GetAsBytesTest()
{
// Arrange
SettingsChaCha20 settingsChaCha20_1 = new SettingsChaCha20(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 }, 1);
SettingsChaCha20 settingsChaCha20_2 = new SettingsChaCha20(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5a, 0x00, 0x00, 0x00, 0x00 }, 1);
SettingsChaCha20 settingsChaCha20_3 = new SettingsChaCha20(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 }, 2);
// Act
byte[] bytes1 = settingsChaCha20_1.GetSettingsAsBytes();
byte[] bytes2 = settingsChaCha20_2.GetSettingsAsBytes();
byte[] bytes3 = settingsChaCha20_3.GetSettingsAsBytes();
// Assert
Assert.IsNotNull(bytes1);
Assert.IsNotNull(bytes2);
Assert.IsNotNull(bytes3);
CollectionAssert.AreNotEqual(bytes1, bytes2);
CollectionAssert.AreNotEqual(bytes1, bytes3);
}
