Net.Pkcs11Interop.LowLevelAPI81.Pkcs11.C_SeedRandom C# (CSharp) Method

        public CKR C_SeedRandom(ulong session, byte[] seed, ulong seedLen)
        {
            if (this._disposed)
                throw new ObjectDisposedException(this.GetType().FullName);

            ulong rv = _delegates.C_SeedRandom(session, seed, seedLen);
            return (CKR)Convert.ToUInt32(rv);
        }

        public void _01_SeedRandomTest()
        {
            if (Platform.UnmanagedLongSize != 8 || 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.InitArgs81);
                if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_CRYPTOKI_ALREADY_INITIALIZED))
                    Assert.Fail(rv.ToString());
                
                // Find first slot with token present
                ulong slotId = Helpers.GetUsableSlot(pkcs11);
                
                // Open RO (read-only) session
                ulong session = CK.CK_INVALID_HANDLE;
                rv = pkcs11.C_OpenSession(slotId, CKF.CKF_SERIAL_SESSION, IntPtr.Zero, IntPtr.Zero, ref session);
                if (rv != CKR.CKR_OK)
                    Assert.Fail(rv.ToString());

                // Mix additional seed material into the token's random number generator
                byte[] seed = ConvertUtils.Utf8StringToBytes("Additional seed material");
                rv = pkcs11.C_SeedRandom(session, seed, Convert.ToUInt64(seed.Length));
                if (rv != CKR.CKR_OK)
                    Assert.Fail(rv.ToString());

                // Do something interesting with random number generator

                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());
            }
        }