private void CipherDescriptionTest()
{
CipherDescription cd1 = new CipherDescription(
SymmetricEngines.RHX,
192, IVSizes.V128,
CipherModes.CTR,
PaddingModes.None,
BlockSizes.B128,
RoundCounts.R22);
byte[] bcd = cd1.ToBytes();
CipherDescription cd2 = new CipherDescription(bcd);
if (!cd1.Equals(cd2))
{
throw new Exception("KeyFactoryTest: CipherDescription serialization has failed!");
}
MemoryStream mcd = cd2.ToStream();
CipherDescription cd3 = new CipherDescription(mcd);
if (!cd1.Equals(cd3))
{
throw new Exception("KeyFactoryTest: CipherDescription serialization has failed!");
}
int x = cd1.GetHashCode();
if (x != cd2.GetHashCode() || x != cd3.GetHashCode())
{
throw new Exception("KeyFactoryTest: CipherDescription hash code test has failed!");
}
}
/// <summary>
/// Convert the PackageKey structure to a MemoryStream
/// </summary>
///
/// <returns>The MemoryStream containing the PackageKey</returns>
public MemoryStream ToStream()
{
MemoryStream stream = new MemoryStream();
BinaryWriter writer = new BinaryWriter(stream);
writer.Write(KeyPolicy);
writer.Write(CreatedOn);
writer.Write(Authority.ToBytes());
writer.Write(Description.ToBytes());
writer.Write(SubKeyCount);
byte[] buffer = new byte[SubKeyCount * KEYPOL_SIZE];
Buffer.BlockCopy(SubKeyPolicy, 0, buffer, 0, buffer.Length);
writer.Write(buffer);
buffer = new byte[SubKeyCount * KEYID_SIZE];
for (int i = 0; i < SubKeyCount; i++)
{
Buffer.BlockCopy(SubKeyID[i], 0, buffer, i * KEYID_SIZE, KEYID_SIZE);
}
writer.Write(buffer);
stream.Seek(0, SeekOrigin.Begin);
return(stream);
}
/// <summary>
/// Convert the CipherKey structure to a MemoryStream
/// </summary>
///
/// <returns>The MemoryStream containing the CipherKey</returns>
public MemoryStream ToStream()
{
MemoryStream stream = new MemoryStream();
BinaryWriter writer = new BinaryWriter(stream);
writer.Write(Description.ToBytes());
writer.Write(KeyId);
writer.Write(ExtensionKey);
stream.Seek(0, SeekOrigin.Begin);
return(stream);
}
/// <summary>
/// Convert the VolumeKey structure to a MemoryStream
/// </summary>
///
/// <returns>The MemoryStream containing the VolumeKey</returns>
public MemoryStream ToStream()
{
MemoryStream stream = new MemoryStream();
BinaryWriter writer = new BinaryWriter(stream);
writer.Write(Tag);
writer.Write(Description.ToBytes());
writer.Write(Count);
for (int i = 0; i < Count; i++)
{
writer.Write(FileId[i]);
}
writer.Write(State, 0, State.Length);
stream.Seek(0, SeekOrigin.Begin);
return(stream);
}
/// <summary>
/// Set the CipherDescription structure
/// </summary>
///
/// <param name="KeyStream">The stream containing a key package</param>
/// <param name="Description">The CipherDescription structure</param>
public static void SetCipherDescription(Stream KeyStream, CipherDescription Description)
{
KeyStream.Seek(CPRDSC_SEEK, SeekOrigin.Begin);
new BinaryWriter(KeyStream).Write(Description.ToBytes());
}
