public void _01_BasicDeriveKeyTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 0)
Assert.Inconclusive("Test cannot be executed on this platform");
using (Pkcs11 pkcs11 = new Pkcs11(Settings.Pkcs11LibraryPath, Settings.UseOsLocking))
{
// Find first slot with token present
Slot slot = Helpers.GetUsableSlot(pkcs11);
// Open RW session
using (Session session = slot.OpenSession(false))
{
// Login as normal user
session.Login(CKU.CKU_USER, Settings.NormalUserPin);
// Generate symetric key
ObjectHandle baseKey = Helpers.GenerateKey(session);
// Generate random data needed for key derivation
byte[] data = session.GenerateRandom(24);
// Specify mechanism parameters
CkKeyDerivationStringData mechanismParams = new CkKeyDerivationStringData(data);
// Specify derivation mechanism with parameters
Mechanism mechanism = new Mechanism(CKM.CKM_XOR_BASE_AND_DATA, mechanismParams);
// Derive key
ObjectHandle derivedKey = session.DeriveKey(mechanism, baseKey, null);
// Do something interesting with derived key
Assert.IsTrue(derivedKey.ObjectId != CK.CK_INVALID_HANDLE);
session.DestroyObject(baseKey);
session.DestroyObject(derivedKey);
session.Logout();
}
}
}
public void _04_ObjectParameterTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 0)
Assert.Inconclusive("Test cannot be executed on this platform");
byte[] data = new byte[24];
System.Random rng = new Random();
rng.NextBytes(data);
// Specify mechanism parameters
CkKeyDerivationStringData parameter = new CkKeyDerivationStringData(data);
// Create mechanism with the object as parameter
Mechanism mechanism = new Mechanism(CKM.CKM_XOR_BASE_AND_DATA, parameter);
Assert.IsTrue(mechanism.Type == (uint)CKM.CKM_XOR_BASE_AND_DATA);
// We access private Mechanism member here just for the testing purposes
Net.Pkcs11Interop.LowLevelAPI40.CK_MECHANISM ckMechanism = (Net.Pkcs11Interop.LowLevelAPI40.CK_MECHANISM)typeof(Mechanism).GetField("_ckMechanism", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(mechanism);
Assert.IsTrue(ckMechanism.Mechanism == (uint)CKM.CKM_XOR_BASE_AND_DATA);
Assert.IsTrue(ckMechanism.Parameter != IntPtr.Zero);
Assert.IsTrue(ckMechanism.ParameterLen == Net.Pkcs11Interop.Common.UnmanagedMemory.SizeOf(typeof(Net.Pkcs11Interop.LowLevelAPI40.MechanismParams.CK_KEY_DERIVATION_STRING_DATA)));
}