/// <summary> /// Authenticate with key1 /// </summary> private void btnAuthKeyOne_Click(object sender, RoutedEventArgs e) { Gen2.NXP.AES.Tam2Authentication tam2Auth; Gen2.NXP.AES.Tam1Authentication tam1Auth; ushort[] Key1, Ichallenge, returnedIchallenge; byte[] Response, Challenge; lblDataValue.Content = ""; lblTam2DataValue.Content = ""; lblChallenge1Value.Content = ""; switch (cbxReadDataBank.Text) { case "TID": MemoryProfile = Gen2.NXP.AES.Profile.TID; break; case "User": MemoryProfile = Gen2.NXP.AES.Profile.USER; break; case "EPC": MemoryProfile = Gen2.NXP.AES.Profile.EPC; break; } if (txtbxVerifyKeyOne.Text.Length == 32) { byte[] KeytoWrite = ByteFormat.FromHex(txtbxVerifyKeyOne.Text); Key1 = new ushort[KeytoWrite.Length / 2]; Key1 = ByteConv.ToU16s(KeytoWrite); } else { MessageBox.Show("Please input valid Key1", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Error); return; } byte[] randmNumber = ByteFormat.FromHex(lblRandomChallengeValue.Content.ToString().Replace(" ", "")); Ichallenge = new ushort[randmNumber.Length / 2]; Ichallenge = ByteConv.ToU16s(randmNumber); try { if ((bool)chkReadData.IsChecked && (bool)chkReadBuffer.IsChecked) { //ReadBuffer with Tam2 tam2Auth = new Gen2.NXP.AES.Tam2Authentication(Gen2.NXP.AES.KeyId.KEY1, Key1, Ichallenge, MemoryProfile, (ushort)Convert.ToUInt32(txtReadStartAddr.Text), (ushort)Convert.ToUInt32(txtReadLength.Text), false); Gen2.ReadBuffer buffer = new Gen2.NXP.AES.ReadBuffer(0, 256, tam2Auth); Response = (byte[])objReader.ExecuteTagOp(buffer, searchSelect); //swap the bytes for (int i = 0; i < Response.Length; i += 2) { SwapBytes(ref Response, i, i + 1); } Challenge = DecryptIchallenge(Response.Skip(0).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key1)).Skip(6).Take(10).ToArray(); lblDataValue.Content = DecryptCustomData(Response.Skip(16).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key1), Response.Skip(0).Take(16).ToArray()); lblChallenge1Value.Content = ByteFormat.ToHex(Challenge, "", " "); } else if (chkReadData.IsChecked == false && chkReadBuffer.IsChecked == false) { //Auth with tam1 tam1Auth = new Gen2.NXP.AES.Tam1Authentication(Gen2.NXP.AES.KeyId.KEY1, Key1, Ichallenge, true); Gen2.NXP.AES.Authenticate auth = new Gen2.NXP.AES.Authenticate(tam1Auth); Response = (byte[])objReader.ExecuteTagOp(auth, searchSelect); Challenge = DecryptIchallenge(Response.Skip(0).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key1)).Skip(6).Take(10).ToArray(); lblChallenge1Value.Content = ByteFormat.ToHex(Challenge, "", " "); } else if (chkReadData.IsChecked == false && chkReadBuffer.IsChecked == true) { //Readbuffer with Tam1 tam1Auth = new Gen2.NXP.AES.Tam1Authentication(Gen2.NXP.AES.KeyId.KEY1, Key1, Ichallenge, false); Gen2.ReadBuffer buffer = new Gen2.NXP.AES.ReadBuffer(0, 128, tam1Auth); Response = (byte[])objReader.ExecuteTagOp(buffer, searchSelect); //swap the bytes for (int i = 0; i < Response.Length; i += 2) { SwapBytes(ref Response, i, i + 1); } Challenge = DecryptIchallenge(Response.Skip(0).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key1)).Skip(6).Take(10).ToArray(); lblChallenge1Value.Content = ByteFormat.ToHex(Challenge, "", " "); lblDataValue.Content = ""; } else { //Authenticate with tam2 tam2Auth = new Gen2.NXP.AES.Tam2Authentication(Gen2.NXP.AES.KeyId.KEY1, Key1, Ichallenge, MemoryProfile, (ushort)Convert.ToUInt32(txtReadStartAddr.Text), (ushort)Convert.ToUInt32(txtReadLength.Text), true); Gen2.NXP.AES.Authenticate auth = new Gen2.NXP.AES.Authenticate(tam2Auth); Response = (byte[])objReader.ExecuteTagOp(auth, searchSelect); if (Response != null) { lblTam2DataValue.Content = ByteFormat.ToHex(Response, "", " "); } lblTam2DataValue.Content = DecryptCustomData(Response.Skip(16).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key1), Response.Skip(0).Take(16).ToArray()); Challenge = DecryptIchallenge(Response.Skip(0).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key1)).Skip(6).Take(10).ToArray(); lblChallenge1Value.Content = ByteFormat.ToHex(Challenge, "", " "); } returnedIchallenge = new ushort[Challenge.Length / 2]; returnedIchallenge = ByteConv.ToU16s(Challenge); if (returnedIchallenge.SequenceEqual(Ichallenge)) { MessageBox.Show("Tag Successfully Authenticated", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Information); } else { MessageBox.Show("Tag Failed Authentication; Confirm Verification Key is Correct.", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Warning); } } catch (Exception ex) { MessageBox.Show(ex.Message, "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Error); return; } }
/// <summary> /// Authenticate with key0 /// </summary> private void btnAuthKeyZero_Click(object sender, RoutedEventArgs e) { //Gen2.NXP.AES.Tam2Authentication tam2Auth; Gen2.NXP.AES.Tam1Authentication tam1Auth; ushort[] Key0, Ichallenge, returnedIchallenge; byte[] Response, Challenge; lblDataValue.Content = ""; lblTam2DataValue.Content = ""; lblChallenge1Value.Content = ""; switch (cbxReadDataBank.Text) { case "TID": MemoryProfile = Gen2.NXP.AES.Profile.TID; break; case "User": MemoryProfile = Gen2.NXP.AES.Profile.USER; break; case "EPC": MemoryProfile = Gen2.NXP.AES.Profile.EPC; break; } if (txtbxVerifyKeyZero.Text.Length == 32) { byte[] KeytoWrite = ByteFormat.FromHex(txtbxVerifyKeyZero.Text); Key0 = new ushort[KeytoWrite.Length / 2]; Key0 = ByteConv.ToU16s(KeytoWrite); } else { MessageBox.Show("Please input valid Key0", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Error); return; } byte[] randmNumber = ByteFormat.FromHex(lblRandomChallengeValue.Content.ToString().Replace(" ", "")); Ichallenge = new ushort[randmNumber.Length / 2]; Ichallenge = ByteConv.ToU16s(randmNumber); try { if ((bool)chkReadData.IsChecked && (bool)chkReadBuffer.IsChecked) { //ReadBuffer with Tam2 MessageBox.Show("Operation is not supported", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Error); return; } else if (chkReadData.IsChecked == false && chkReadBuffer.IsChecked == false) { //Authentication with tam1 tam1Auth = new Gen2.NXP.AES.Tam1Authentication(Gen2.NXP.AES.KeyId.KEY0, Key0, true); Gen2.NXP.AES.Authenticate auth = new Gen2.NXP.AES.Authenticate(tam1Auth); Response = (byte[])objReader.ExecuteTagOp(auth, searchSelect); Challenge = DecryptIchallenge(Response.Skip(0).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key0)).Skip(6).Take(10).ToArray(); lblChallenge1Value.Content = ByteFormat.ToHex(Challenge, "", " "); returnedIchallenge = new ushort[Challenge.Length / 2]; returnedIchallenge = ByteConv.ToU16s(Challenge); byte[] generatedIChallenge = new byte[10]; byte[] tempBuffer = new byte[16]; Array.Copy(Response, 0, generatedIChallenge, 0, 10); Array.Copy(Response, 10, tempBuffer, 0, 16); byte[] receivedIChallenge = DecryptIchallenge(tempBuffer, ByteConv.ConvertFromUshortArray(Key0).ToArray()); Array.Copy(receivedIChallenge, 6, receivedIChallenge, 0, 10); Array.Resize(ref receivedIChallenge, 10); if (generatedIChallenge.SequenceEqual(receivedIChallenge)) { MessageBox.Show("Tag Successfully Authenticated", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Information); } else { MessageBox.Show("Tag Failed Authentication; Confirm Verification Key is Correct.", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Warning); } } else if (chkReadData.IsChecked == false && chkReadBuffer.IsChecked == true) { //Read Buffer with Tam1 tam1Auth = new Gen2.NXP.AES.Tam1Authentication(Gen2.NXP.AES.KeyId.KEY0, Key0, true); Gen2.ReadBuffer buffer = new Gen2.NXP.AES.ReadBuffer(0, 128, tam1Auth); Response = (byte[])objReader.ExecuteTagOp(buffer, searchSelect); Challenge = DecryptIchallenge(Response.Skip(0).Take(16).ToArray(), ByteConv.ConvertFromUshortArray(Key0)).Skip(6).Take(10).ToArray(); lblChallenge1Value.Content = ByteFormat.ToHex(Challenge, "", " "); lblDataValue.Content = ""; byte[] generatedIChallenge = new byte[10]; byte[] tempBuffer = new byte[16]; Array.Copy(Response, 0, generatedIChallenge, 0, 10); Array.Copy(Response, 10, tempBuffer, 0, 16); byte[] receivedIChallenge = DecryptIchallenge(tempBuffer, ByteConv.ConvertFromUshortArray(Key0)); Array.Copy(receivedIChallenge, 6, receivedIChallenge, 0, 10); Array.Resize(ref receivedIChallenge, 10); if (generatedIChallenge.SequenceEqual(receivedIChallenge)) { MessageBox.Show("Tag Successfully Authenticated", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Information); } else { MessageBox.Show("Tag Failed Authentication; Confirm Verification Key is Correct.", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Warning); } } else { //Authenticate with tam2 MessageBox.Show("Operation is not supported", "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Error); return; } } catch (Exception ex) { MessageBox.Show(ex.Message, "Universal Reader Assistant", MessageBoxButton.OK, MessageBoxImage.Error); return; } }