/// <summary>
/// Creates a temporary PackageKey on disk, extracts and compares the copy
/// <para>Throws an Exception on failure</</para>
/// </summary>
public static void PackageFactoryTest()
{
string path = GetTempPath();
KeyGenerator kgen = new KeyGenerator();
// populate a KeyAuthority structure
KeyAuthority authority = new KeyAuthority(kgen.GetBytes(16), kgen.GetBytes(16), kgen.GetBytes(16), kgen.GetBytes(32), 0);
// cipher paramaters
CipherDescription desc = new CipherDescription(
SymmetricEngines.RHX, 32,
IVSizes.V128,
CipherModes.CTR,
PaddingModes.X923,
BlockSizes.B128,
RoundCounts.R14,
Digests.Keccak512,
64,
Digests.Keccak512);
// create the package key
PackageKey pkey = new PackageKey(authority, desc, 10);
// write a key file
using (PackageFactory pf = new PackageFactory(new FileStream(path, FileMode.Open, FileAccess.ReadWrite), authority))
pf.Create(pkey);
for (int i = 0; i < pkey.SubKeyCount; i++)
{
CipherDescription desc2;
KeyParams kp1;
KeyParams kp2;
byte[] ext;
byte[] id = pkey.SubKeyID[i];
// get at index
using (FileStream stream = new FileStream(path, FileMode.Open, FileAccess.Read))
kp2 = PackageKey.AtIndex(stream, i);
// read the package from id
using (PackageFactory pf = new PackageFactory(new FileStream(path, FileMode.Open, FileAccess.ReadWrite), authority))
pf.Extract(id, out desc2, out kp1);
// compare key material
if (!Evaluate.AreEqual(kp1.Key, kp2.Key))
{
throw new Exception();
}
if (!Evaluate.AreEqual(kp1.IV, kp2.IV))
{
throw new Exception();
}
if (!desc.Equals(desc2))
{
throw new Exception();
}
}
if (File.Exists(path))
{
File.Delete(path);
}
}