public static void Ctor()
{
var transform = new IdentityTransform(1, 1, true);
Assert.Throws<ArgumentException>(() => new CryptoStream(new MemoryStream(), transform, (CryptoStreamMode)12345));
Assert.Throws<ArgumentException>(() => new CryptoStream(new MemoryStream(new byte[0], writable: false), transform, CryptoStreamMode.Write));
Assert.Throws<ArgumentException>(() => new CryptoStream(new CryptoStream(new MemoryStream(new byte[0]), transform, CryptoStreamMode.Write), transform, CryptoStreamMode.Read));
}
public XmlBuilderReaderFixture()
{
IdentityTransform = new(true);
using (var xmlReader = XmlReader.Create(ResourceManager.Load(Assembly.GetExecutingAssembly(), "Be.Stateless.Resources.XsltIdentity.xslt")))
{
IdentityTransform.Load(xmlReader);
}
}
public static void Ctor()
{
var transform = new IdentityTransform(1, 1, true);
AssertExtensions.Throws <ArgumentException>("mode", () => new CryptoStream(new MemoryStream(), transform, (CryptoStreamMode)12345));
AssertExtensions.Throws <ArgumentException>(null, "stream", () => new CryptoStream(new MemoryStream(new byte[0], writable: false), transform, CryptoStreamMode.Write));
AssertExtensions.Throws <ArgumentException>(null, "stream", () => new CryptoStream(new CryptoStream(new MemoryStream(new byte[0]), transform, CryptoStreamMode.Write), transform, CryptoStreamMode.Read));
}
public static void NestedCryptoStreams()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream1 = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
using (CryptoStream encryptStream2 = new CryptoStream(encryptStream1, encryptor, CryptoStreamMode.Write))
{
encryptStream2.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
}
}
protected override Task <StreamPair> CreateWrappedConnectedStreamsAsync(StreamPair wrapped, bool leaveOpen = false)
{
ICryptoTransform transform = new IdentityTransform(1, 1, true);
(Stream writeable, Stream readable) = GetReadWritePair(wrapped);
var encryptedWriteable = new CryptoStream(writeable, transform, CryptoStreamMode.Write, leaveOpen);
var decryptedReadable = new CryptoStream(readable, transform, CryptoStreamMode.Read, leaveOpen);
return(Task.FromResult <StreamPair>((encryptedWriteable, decryptedReadable)));
}
public static void MultipleDispose()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.Dispose();
}
}
public static void Clear()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.Clear();
Assert.Throws <NotSupportedException>(() => encryptStream.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5));
}
}
public static void NestedCryptoStreams()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream1 = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
using (CryptoStream encryptStream2 = new CryptoStream(encryptStream1, encryptor, CryptoStreamMode.Write))
{
encryptStream2.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
}
}
public static void FlushCalledOnFlushAsync_DeriveClass()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (MinimalCryptoStream encryptStream = new MinimalCryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.WriteAsync(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
Task waitable = encryptStream.FlushAsync(new Threading.CancellationToken(false));
Assert.False(waitable.IsCanceled);
waitable.Wait();
Assert.True(encryptStream.FlushCalled);
}
}
public static async Task FlushFinalBlockAsync_Canceled()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
await encryptStream.WriteAsync(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
ValueTask waitable = encryptStream.FlushFinalBlockAsync(new Threading.CancellationToken(canceled: true));
Assert.True(waitable.IsCanceled);
Assert.False(encryptStream.HasFlushedFinalBlock);
}
}
public static async Task FlushFinalBlockAsync()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
await encryptStream.WriteAsync(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
await encryptStream.FlushFinalBlockAsync();
Assert.True(encryptStream.HasFlushedFinalBlock);
Assert.Equal(5, output.ToArray().Length);
}
}
public static void MultipleDispose()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
{
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.Dispose();
}
Assert.Equal(false, output.CanRead);
}
#if netcoreapp11
using (MemoryStream output = new MemoryStream())
{
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write, leaveOpen: false))
{
encryptStream.Dispose();
}
Assert.Equal(false, output.CanRead);
}
using (MemoryStream output = new MemoryStream())
{
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write, leaveOpen: true))
{
encryptStream.Dispose();
}
Assert.Equal(true, output.CanRead);
}
#endif
}
public static void MultipleDispose()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
{
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.Dispose();
}
Assert.Equal(false, output.CanRead);
}
#if netcoreapp11
using (MemoryStream output = new MemoryStream())
{
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write, leaveOpen: false))
{
encryptStream.Dispose();
}
Assert.Equal(false, output.CanRead);
}
using (MemoryStream output = new MemoryStream())
{
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write, leaveOpen: true))
{
encryptStream.Dispose();
}
Assert.Equal(true, output.CanRead);
}
#endif
}
public static void Roundtrip(int inputBlockSize, int outputBlockSize, bool canTransformMultipleBlocks)
{
ICryptoTransform encryptor = new IdentityTransform(inputBlockSize, outputBlockSize, canTransformMultipleBlocks);
ICryptoTransform decryptor = new IdentityTransform(inputBlockSize, outputBlockSize, canTransformMultipleBlocks);
var stream = new MemoryStream();
using (CryptoStream encryptStream = new CryptoStream(stream, encryptor, CryptoStreamMode.Write))
{
Assert.True(encryptStream.CanWrite);
Assert.False(encryptStream.CanRead);
Assert.False(encryptStream.CanSeek);
Assert.False(encryptStream.HasFlushedFinalBlock);
Assert.Throws<NotSupportedException>(() => encryptStream.SetLength(1));
Assert.Throws<NotSupportedException>(() => encryptStream.Length);
Assert.Throws<NotSupportedException>(() => encryptStream.Position);
Assert.Throws<NotSupportedException>(() => encryptStream.Position = 0);
Assert.Throws<NotSupportedException>(() => encryptStream.Seek(0, SeekOrigin.Begin));
Assert.Throws<NotSupportedException>(() => encryptStream.Read(new byte[0], 0, 0));
Assert.Throws<NullReferenceException>(() => encryptStream.Write(null, 0, 0)); // No arg validation on buffer?
Assert.Throws<ArgumentOutOfRangeException>(() => encryptStream.Write(new byte[0], -1, 0));
Assert.Throws<ArgumentOutOfRangeException>(() => encryptStream.Write(new byte[0], 0, -1));
Assert.Throws<ArgumentOutOfRangeException>(() => encryptStream.Write(new byte[0], 0, -1));
Assert.Throws<ArgumentException>(() => encryptStream.Write(new byte[3], 1, 4));
byte[] toWrite = Encoding.UTF8.GetBytes(LoremText);
// Write it all at once
encryptStream.Write(toWrite, 0, toWrite.Length);
Assert.False(encryptStream.HasFlushedFinalBlock);
// Write in chunks
encryptStream.Write(toWrite, 0, toWrite.Length / 2);
encryptStream.Write(toWrite, toWrite.Length / 2, toWrite.Length - (toWrite.Length / 2));
Assert.False(encryptStream.HasFlushedFinalBlock);
// Write one byte at a time
for (int i = 0; i < toWrite.Length; i++)
{
encryptStream.WriteByte(toWrite[i]);
}
Assert.False(encryptStream.HasFlushedFinalBlock);
// Write async
encryptStream.WriteAsync(toWrite, 0, toWrite.Length).GetAwaiter().GetResult();
Assert.False(encryptStream.HasFlushedFinalBlock);
// Flush (nops)
encryptStream.Flush();
encryptStream.FlushAsync().GetAwaiter().GetResult();
encryptStream.FlushFinalBlock();
Assert.Throws<NotSupportedException>(() => encryptStream.FlushFinalBlock());
Assert.True(encryptStream.HasFlushedFinalBlock);
Assert.True(stream.Length > 0);
}
// Read/decrypt using Read
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
{
Assert.False(decryptStream.CanWrite);
Assert.True(decryptStream.CanRead);
Assert.False(decryptStream.CanSeek);
Assert.False(decryptStream.HasFlushedFinalBlock);
Assert.Throws<NotSupportedException>(() => decryptStream.SetLength(1));
Assert.Throws<NotSupportedException>(() => decryptStream.Length);
Assert.Throws<NotSupportedException>(() => decryptStream.Position);
Assert.Throws<NotSupportedException>(() => decryptStream.Position = 0);
Assert.Throws<NotSupportedException>(() => decryptStream.Seek(0, SeekOrigin.Begin));
Assert.Throws<NotSupportedException>(() => decryptStream.Write(new byte[0], 0, 0));
Assert.Throws<NullReferenceException>(() => decryptStream.Read(null, 0, 0)); // No arg validation on buffer?
Assert.Throws<ArgumentOutOfRangeException>(() => decryptStream.Read(new byte[0], -1, 0));
Assert.Throws<ArgumentOutOfRangeException>(() => decryptStream.Read(new byte[0], 0, -1));
Assert.Throws<ArgumentOutOfRangeException>(() => decryptStream.Read(new byte[0], 0, -1));
Assert.Throws<ArgumentException>(() => decryptStream.Read(new byte[3], 1, 4));
using (StreamReader reader = new StreamReader(decryptStream))
{
Assert.Equal(
LoremText + LoremText + LoremText + LoremText,
reader.ReadToEnd());
}
}
// Read/decrypt using ReadToEnd
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
using (StreamReader reader = new StreamReader(decryptStream))
{
Assert.Equal(
LoremText + LoremText + LoremText + LoremText,
reader.ReadToEndAsync().GetAwaiter().GetResult());
}
// Read/decrypt using a small buffer to force multiple calls to Read
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
using (StreamReader reader = new StreamReader(decryptStream, Encoding.UTF8, true, bufferSize: 10))
{
Assert.Equal(
LoremText + LoremText + LoremText + LoremText,
reader.ReadToEndAsync().GetAwaiter().GetResult());
}
// Read/decrypt one byte at a time with ReadByte
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
{
string expectedStr = LoremText + LoremText + LoremText + LoremText;
foreach (char c in expectedStr)
{
Assert.Equal(c, decryptStream.ReadByte()); // relies on LoremText being ASCII
}
Assert.Equal(-1, decryptStream.ReadByte());
}
}
public static void FlushCalledOnFlushAsync_DeriveClass()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (MinimalCryptoStream encryptStream = new MinimalCryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.WriteAsync(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
Task waitable = encryptStream.FlushAsync(new Threading.CancellationToken(false));
Assert.False(waitable.IsCanceled);
waitable.Wait();
Assert.True(encryptStream.FlushCalled);
}
}
public static void MultipleDispose()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.Dispose();
}
}
public static void Clear()
{
ICryptoTransform encryptor = new IdentityTransform(1, 1, true);
using (MemoryStream output = new MemoryStream())
using (CryptoStream encryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
{
encryptStream.Clear();
Assert.Throws<NotSupportedException>(() => encryptStream.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5));
}
}
public static void Roundtrip(int inputBlockSize, int outputBlockSize, bool canTransformMultipleBlocks)
{
ICryptoTransform encryptor = new IdentityTransform(inputBlockSize, outputBlockSize, canTransformMultipleBlocks);
ICryptoTransform decryptor = new IdentityTransform(inputBlockSize, outputBlockSize, canTransformMultipleBlocks);
var stream = new MemoryStream();
using (CryptoStream encryptStream = new CryptoStream(stream, encryptor, CryptoStreamMode.Write))
{
Assert.True(encryptStream.CanWrite);
Assert.False(encryptStream.CanRead);
Assert.False(encryptStream.CanSeek);
Assert.False(encryptStream.HasFlushedFinalBlock);
Assert.Throws <NotSupportedException>(() => encryptStream.SetLength(1));
Assert.Throws <NotSupportedException>(() => encryptStream.Length);
Assert.Throws <NotSupportedException>(() => encryptStream.Position);
Assert.Throws <NotSupportedException>(() => encryptStream.Position = 0);
Assert.Throws <NotSupportedException>(() => encryptStream.Seek(0, SeekOrigin.Begin));
Assert.Throws <NotSupportedException>(() => encryptStream.Read(new byte[0], 0, 0));
Assert.Throws <NullReferenceException>(() => encryptStream.Write(null, 0, 0)); // No arg validation on buffer?
Assert.Throws <ArgumentOutOfRangeException>(() => encryptStream.Write(new byte[0], -1, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => encryptStream.Write(new byte[0], 0, -1));
Assert.Throws <ArgumentOutOfRangeException>(() => encryptStream.Write(new byte[0], 0, -1));
Assert.Throws <ArgumentException>(() => encryptStream.Write(new byte[3], 1, 4));
byte[] toWrite = Encoding.UTF8.GetBytes(LoremText);
// Write it all at once
encryptStream.Write(toWrite, 0, toWrite.Length);
Assert.False(encryptStream.HasFlushedFinalBlock);
// Write in chunks
encryptStream.Write(toWrite, 0, toWrite.Length / 2);
encryptStream.Write(toWrite, toWrite.Length / 2, toWrite.Length - (toWrite.Length / 2));
Assert.False(encryptStream.HasFlushedFinalBlock);
// Write one byte at a time
for (int i = 0; i < toWrite.Length; i++)
{
encryptStream.WriteByte(toWrite[i]);
}
Assert.False(encryptStream.HasFlushedFinalBlock);
// Write async
encryptStream.WriteAsync(toWrite, 0, toWrite.Length).GetAwaiter().GetResult();
Assert.False(encryptStream.HasFlushedFinalBlock);
// Flush (nops)
encryptStream.Flush();
encryptStream.FlushAsync().GetAwaiter().GetResult();
encryptStream.FlushFinalBlock();
Assert.Throws <NotSupportedException>(() => encryptStream.FlushFinalBlock());
Assert.True(encryptStream.HasFlushedFinalBlock);
Assert.True(stream.Length > 0);
}
// Read/decrypt using Read
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
{
Assert.False(decryptStream.CanWrite);
Assert.True(decryptStream.CanRead);
Assert.False(decryptStream.CanSeek);
Assert.False(decryptStream.HasFlushedFinalBlock);
Assert.Throws <NotSupportedException>(() => decryptStream.SetLength(1));
Assert.Throws <NotSupportedException>(() => decryptStream.Length);
Assert.Throws <NotSupportedException>(() => decryptStream.Position);
Assert.Throws <NotSupportedException>(() => decryptStream.Position = 0);
Assert.Throws <NotSupportedException>(() => decryptStream.Seek(0, SeekOrigin.Begin));
Assert.Throws <NotSupportedException>(() => decryptStream.Write(new byte[0], 0, 0));
Assert.Throws <NullReferenceException>(() => decryptStream.Read(null, 0, 0)); // No arg validation on buffer?
Assert.Throws <ArgumentOutOfRangeException>(() => decryptStream.Read(new byte[0], -1, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => decryptStream.Read(new byte[0], 0, -1));
Assert.Throws <ArgumentOutOfRangeException>(() => decryptStream.Read(new byte[0], 0, -1));
Assert.Throws <ArgumentException>(() => decryptStream.Read(new byte[3], 1, 4));
using (StreamReader reader = new StreamReader(decryptStream))
{
Assert.Equal(
LoremText + LoremText + LoremText + LoremText,
reader.ReadToEnd());
}
}
// Read/decrypt using ReadToEnd
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
using (StreamReader reader = new StreamReader(decryptStream))
{
Assert.Equal(
LoremText + LoremText + LoremText + LoremText,
reader.ReadToEndAsync().GetAwaiter().GetResult());
}
// Read/decrypt using a small buffer to force multiple calls to Read
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
using (StreamReader reader = new StreamReader(decryptStream, Encoding.UTF8, true, bufferSize: 10))
{
Assert.Equal(
LoremText + LoremText + LoremText + LoremText,
reader.ReadToEndAsync().GetAwaiter().GetResult());
}
// Read/decrypt one byte at a time with ReadByte
stream = new MemoryStream(stream.ToArray()); // CryptoStream.Dispose disposes the stream
using (CryptoStream decryptStream = new CryptoStream(stream, decryptor, CryptoStreamMode.Read))
{
string expectedStr = LoremText + LoremText + LoremText + LoremText;
foreach (char c in expectedStr)
{
Assert.Equal(c, decryptStream.ReadByte()); // relies on LoremText being ASCII
}
Assert.Equal(-1, decryptStream.ReadByte());
}
}
