public void _01_BasicMechanismListAndInfoTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 0)
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.InitArgs40);
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);
// Get number of supported mechanisms in first call
uint mechanismCount = 0;
rv = pkcs11.C_GetMechanismList(slotId, null, ref mechanismCount);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
Assert.IsTrue(mechanismCount > 0);
// Allocate array for supported mechanisms
CKM[] mechanismList = new CKM[mechanismCount];
// Get supported mechanisms in second call
rv = pkcs11.C_GetMechanismList(slotId, mechanismList, ref mechanismCount);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Analyze first supported mechanism
CK_MECHANISM_INFO mechanismInfo = new CK_MECHANISM_INFO();
rv = pkcs11.C_GetMechanismInfo(slotId, mechanismList[0], ref mechanismInfo);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Do something interesting with mechanism info
rv = pkcs11.C_Finalize(IntPtr.Zero);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
}
/// <summary>
/// Obtains information about a particular mechanism possibly supported by a token
/// </summary>
/// <param name="slotId">The ID of the token's slot</param>
/// <param name="type">The type of mechanism</param>
/// <param name="info">Structure that receives the mechanism information</param>
/// <returns>CKR_CRYPTOKI_NOT_INITIALIZED, CKR_DEVICE_ERROR, CKR_DEVICE_MEMORY, CKR_DEVICE_REMOVED, CKR_FUNCTION_FAILED, CKR_GENERAL_ERROR, CKR_HOST_MEMORY, CKR_MECHANISM_INVALID, CKR_OK, CKR_SLOT_ID_INVALID, CKR_TOKEN_NOT_PRESENT, CKR_TOKEN_NOT_RECOGNIZED, CKR_ARGUMENTS_BAD</returns>
public CKR C_GetMechanismInfo(uint slotId, CKM type, ref CK_MECHANISM_INFO info)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
uint rv = _delegates.C_GetMechanismInfo(slotId, (uint)type, ref info);
return (CKR)rv;
}
internal static extern uint C_GetMechanismInfo(uint slotId, uint type, ref CK_MECHANISM_INFO info);
/// <summary>
/// Obtains information about a particular mechanism possibly supported by a token
/// </summary>
/// <param name="mechanism">Mechanism</param>
/// <returns>Information about mechanism</returns>
public MechanismInfo GetMechanismInfo(CKM mechanism)
{
CK_MECHANISM_INFO mechanismInfo = new CK_MECHANISM_INFO();
CKR rv = _p11.C_GetMechanismInfo(_slotId, mechanism, ref mechanismInfo);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_GetMechanismInfo", rv);
return new MechanismInfo(mechanism, mechanismInfo);
}
internal static extern CKR C_GetMechanismInfo(uint slotId, uint type, ref CK_MECHANISM_INFO info);
/// <summary>
/// Converts low level CK_MECHANISM_INFO structure to high level MechanismInfo class
/// </summary>
/// <param name="mechanism">Mechanism</param>
/// <param name="ck_mechanism_info">Low level CK_MECHANISM_INFO structure</param>
internal MechanismInfo(CKM mechanism, CK_MECHANISM_INFO ck_mechanism_info)
{
_mechanism = mechanism;
_minKeySize = ck_mechanism_info.MinKeySize;
_maxKeySize = ck_mechanism_info.MaxKeySize;
_mechanismFlags = new MechanismFlags(ck_mechanism_info.Flags);
}
internal static extern NativeULong C_GetMechanismInfo(NativeULong slotId, NativeULong type, ref CK_MECHANISM_INFO info);