public void _01_BasicDeriveKeyTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 1)
Assert.Inconclusive("Test cannot be executed on this platform");
CKR rv = CKR.CKR_OK;
using (Pkcs11 pkcs11 = new Pkcs11(Settings.Pkcs11LibraryPath))
{
rv = pkcs11.C_Initialize(Settings.InitArgs41);
if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_CRYPTOKI_ALREADY_INITIALIZED))
Assert.Fail(rv.ToString());
// Find first slot with token present
uint slotId = Helpers.GetUsableSlot(pkcs11);
// Open RW session
uint session = CK.CK_INVALID_HANDLE;
rv = pkcs11.C_OpenSession(slotId, (CKF.CKF_SERIAL_SESSION | CKF.CKF_RW_SESSION), IntPtr.Zero, IntPtr.Zero, ref session);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Login as normal user
rv = pkcs11.C_Login(session, CKU.CKU_USER, Settings.NormalUserPinArray, Convert.ToUInt32(Settings.NormalUserPinArray.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Generate symetric key
uint baseKeyId = CK.CK_INVALID_HANDLE;
rv = Helpers.GenerateKey(pkcs11, session, ref baseKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Generate random data needed for key derivation
byte[] data = new byte[24];
rv = pkcs11.C_GenerateRandom(session, data, Convert.ToUInt32(data.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Specify mechanism parameters
// Note that we are allocating unmanaged memory that will have to be freed later
CK_KEY_DERIVATION_STRING_DATA mechanismParams = new CK_KEY_DERIVATION_STRING_DATA();
mechanismParams.Data = UnmanagedMemory.Allocate(data.Length);
UnmanagedMemory.Write(mechanismParams.Data, data);
mechanismParams.Len = Convert.ToUInt32(data.Length);
// Specify derivation mechanism with parameters
// Note that CkmUtils.CreateMechanism() automaticaly copies mechanismParams into newly allocated unmanaged memory
CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_XOR_BASE_AND_DATA, mechanismParams);
// Derive key
uint derivedKey = CK.CK_INVALID_HANDLE;
rv = pkcs11.C_DeriveKey(session, ref mechanism, baseKeyId, null, 0, ref derivedKey);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Do something interesting with derived key
Assert.IsTrue(derivedKey != CK.CK_INVALID_HANDLE);
// In LowLevelAPI we have to free all unmanaged memory we previously allocated
UnmanagedMemory.Free(ref mechanismParams.Data);
mechanismParams.Len = 0;
// In LowLevelAPI we have to free unmanaged memory taken by mechanism parameter
UnmanagedMemory.Free(ref mechanism.Parameter);
mechanism.ParameterLen = 0;
rv = pkcs11.C_DestroyObject(session, baseKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_DestroyObject(session, derivedKey);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_Logout(session);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_CloseSession(session);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_Finalize(IntPtr.Zero);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
}
public void _03_StructureParameterTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 1)
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
// Note that we are allocating unmanaged memory that will have to be freed later
CK_KEY_DERIVATION_STRING_DATA parameter = new CK_KEY_DERIVATION_STRING_DATA();
parameter.Data = UnmanagedMemory.Allocate(data.Length);
UnmanagedMemory.Write(parameter.Data, data);
parameter.Len = Convert.ToUInt32(data.Length);
// Create mechanism with the structure as parameter
// Note that CkmUtils.CreateMechanism() automaticaly copies mechanismParams into newly allocated unmanaged memory
CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_XOR_BASE_AND_DATA, parameter);
Assert.IsTrue(mechanism.Mechanism == (uint)CKM.CKM_XOR_BASE_AND_DATA);
Assert.IsTrue(mechanism.Parameter != IntPtr.Zero);
Assert.IsTrue(mechanism.ParameterLen == UnmanagedMemory.SizeOf(typeof(CK_KEY_DERIVATION_STRING_DATA)));
// Free all unmanaged memory we previously allocated
UnmanagedMemory.Free(ref parameter.Data);
parameter.Len = 0;
// Free unmanaged memory taken by mechanism parameter
UnmanagedMemory.Free(ref mechanism.Parameter);
mechanism.ParameterLen = 0;
Assert.IsTrue(mechanism.Mechanism == (uint)CKM.CKM_XOR_BASE_AND_DATA);
Assert.IsTrue(mechanism.Parameter == IntPtr.Zero);
Assert.IsTrue(mechanism.ParameterLen == 0);
}