UIPolicy

unsafe CngUIPolicy System.Security.Cryptography.CngKey.UIPolicy

get

Definition at line 151 of file CngKey.cs.

    {
        get
        {
            global::Interop.NCrypt.ErrorCode errorCode = global::Interop.NCrypt.NCryptGetProperty(_keyHandle, "UI Policy", null, 0, out var pcbResult, CngPropertyOptions.None);
            if (errorCode != 0 && errorCode != global::Interop.NCrypt.ErrorCode.NTE_NOT_FOUND)
            {
                throw errorCode.ToCryptographicException();
            }
            CngUIProtectionLevels protectionLevel;
            string friendlyName;
            string description;
            string creationTitle;
            if (errorCode != 0 || pcbResult == 0)
            {
                protectionLevel = CngUIProtectionLevels.None;
                friendlyName = null;
                description = null;
                creationTitle = null;
            }
            else
            {
                if (pcbResult < sizeof(global::Interop.NCrypt.NCRYPT_UI_POLICY))
                {
                    throw global::Interop.NCrypt.ErrorCode.E_FAIL.ToCryptographicException();
                }
                byte[] array = new byte[pcbResult];
                fixed (byte* ptr = &array[0])
                {
                    errorCode = global::Interop.NCrypt.NCryptGetProperty(_keyHandle, "UI Policy", ptr, array.Length, out pcbResult, CngPropertyOptions.None);
                    if (errorCode != 0)
                    {
                        throw errorCode.ToCryptographicException();
                    }
                    global::Interop.NCrypt.NCRYPT_UI_POLICY* ptr2 = (global::Interop.NCrypt.NCRYPT_UI_POLICY*)ptr;
                    protectionLevel = ptr2->dwFlags;
                    friendlyName = Marshal.PtrToStringUni(ptr2->pszFriendlyName);
                    description = Marshal.PtrToStringUni(ptr2->pszDescription);
                    creationTitle = Marshal.PtrToStringUni(ptr2->pszCreationTitle);
                }
            }
            string propertyAsString = _keyHandle.GetPropertyAsString("Use Context", CngPropertyOptions.None);
            return new CngUIPolicy(protectionLevel, friendlyName, description, propertyAsString, creationTitle);
        }
    }