public static void TestClone()
{
TypeMap.Register.Singleton <IRandomGenerator>(() => new FakeRandomGenerator());
IDerivedKey keyEncryptingKey = new V2DerivedKey(new Passphrase("secret"), new Salt(256), 100, 256);
V2KeyWrapHeaderBlock header = new V2KeyWrapHeaderBlock(new V2Aes256CryptoFactory(), keyEncryptingKey, 125);
V2KeyWrapHeaderBlock clone = (V2KeyWrapHeaderBlock)header.Clone();
Assert.That(header.GetDataBlockBytes(), Is.EquivalentTo(clone.GetDataBlockBytes()));
}
public static void TestConstructorFromKeyUsingKeyWrap256TestVectors()
{
var mock = new Mock <IRandomGenerator>();
mock.Setup <byte[]>(x => x.Generate(It.Is <int>(v => v == 248))).Returns(new byte[248]);
mock.Setup <byte[]>(x => x.Generate(It.Is <int>(v => v == (32 + 16)))).Returns(_keyData256);
TypeMap.Register.Singleton <IRandomGenerator>(() => mock.Object);
V2KeyWrapHeaderBlock header = new V2KeyWrapHeaderBlock(new V2Aes256CryptoFactory(), _keyEncryptingKey256, 6);
byte[] bytes = header.GetDataBlockBytes();
byte[] wrapped = new byte[40];
Array.Copy(bytes, 0, wrapped, 0, wrapped.Length);
Assert.That(wrapped, Is.EquivalentTo(_wrapped256));
}
public static void TestConstructorFromBytes()
{
byte[] datablock = new byte[248];
for (int i = 247; i >= 0; --i)
{
datablock[247 - i] = (byte)i;
}
V2KeyWrapHeaderBlock header = new V2KeyWrapHeaderBlock(datablock);
Assert.That(header.GetDataBlockBytes(), Is.EquivalentTo(datablock));
header = null;
Assert.Throws <ArgumentException>(() => header = new V2KeyWrapHeaderBlock(new byte[247]));
Assert.Throws <ArgumentNullException>(() => header = new V2KeyWrapHeaderBlock(null));
Assert.That(header, Is.Null);
}
public void TestLoadWithInvalidPassphrase()
{
Headers headers = new Headers();
V2Aes256CryptoFactory cryptoFactory = new V2Aes256CryptoFactory();
headers.HeaderBlocks.Add(new PreambleHeaderBlock());
headers.HeaderBlocks.Add(new VersionHeaderBlock(new byte[] { 4, 0, 2, 0, 0 }));
V2KeyWrapHeaderBlock originalKeyWrapBlock = new V2KeyWrapHeaderBlock(cryptoFactory, new V2DerivedKey(new Passphrase("RealKey"), 256), 10);
V2KeyWrapHeaderBlock headerKeyWrapBlock = new V2KeyWrapHeaderBlock(originalKeyWrapBlock.GetDataBlockBytes());
headers.HeaderBlocks.Add(headerKeyWrapBlock);
headers.HeaderBlocks.Add(new FileInfoEncryptedHeaderBlock(new byte[0]));
headers.HeaderBlocks.Add(new V2CompressionEncryptedHeaderBlock(new byte[1]));
headers.HeaderBlocks.Add(new V2UnicodeFileNameInfoEncryptedHeaderBlock(new byte[0]));
headers.HeaderBlocks.Add(new DataHeaderBlock());
IDerivedKey key;
key = cryptoFactory.RestoreDerivedKey(new Passphrase("WrongKey"), headerKeyWrapBlock.DerivationSalt, headerKeyWrapBlock.DerivationIterations);
headerKeyWrapBlock.SetDerivedKey(cryptoFactory, key);
V2DocumentHeaders documentHeaders = new V2DocumentHeaders(headerKeyWrapBlock);
Assert.That(documentHeaders.Load(headers), Is.False);
key = cryptoFactory.RestoreDerivedKey(new Passphrase("AnotherWrongKey"), headerKeyWrapBlock.DerivationSalt, headerKeyWrapBlock.DerivationIterations);
headerKeyWrapBlock.SetDerivedKey(cryptoFactory, key);
documentHeaders = new V2DocumentHeaders(headerKeyWrapBlock);
Assert.That(documentHeaders.Load(headers), Is.False);
key = cryptoFactory.RestoreDerivedKey(new Passphrase("RealKey"), headerKeyWrapBlock.DerivationSalt, headerKeyWrapBlock.DerivationIterations);
headerKeyWrapBlock.SetDerivedKey(cryptoFactory, key);
documentHeaders = new V2DocumentHeaders(headerKeyWrapBlock);
Assert.That(documentHeaders.Load(headers), Is.True);
}