private void btnTAM2Authenticate_Click(object sender, EventArgs e)
{
byte flag = 0, performOptionFlag = 0;
ushort offsetValue;
bool result;
int dataEPCStart = 28, dataEPCEnd = 39; //Reference the "MTI RFID Module Command Reference Manual-Table 3.9 - ISO 18000-6C Inventory-Response Packet Fields"
int dataMessageStart = 26, dataMessageEnd = 35; //Reference the "MTI RFID Module Command Reference Manual-Table 3.10 - ISO 18000-6C Tag-Access Packet Fields"
int dataCipher1Start = 36, dataCipher1End = 51, dataCipher2Start = 52, dataCipher2End = 61; //Reference the "MTI RFID Module Command Reference Manual-Table 3.10 - ISO 18000-6C Tag-Access Packet Fields"
int i;
string message = "", key = "", ciphertext1 = "", ciphertext2 = "", randomChallenge = "", returnedData = "";
if ((textBoxVerificationKey1.Text.Length / 2) < 16)
{
MessageDisplay("Please enter 16 bytes hexadecimal value for verification Key1",
"TAM2 Authentication", MessageBoxIcon.Error);
}
else if (CheckKeyType(textBoxVerificationKey1.Text) != true)
{
MessageDisplay("Verification Key1 is invalid hexadecimal value", "TAM2 Authentication", MessageBoxIcon.Error);
}
else if (Int16.Parse(textBoxOffset.Text) > 4095)
{
MessageDisplay("The offset value must be littler than 4095",
"TAM2 Authentication", MessageBoxIcon.Error);
}
else
{
result = ushort.TryParse(textBoxOffset.Text, out offsetValue);
if (chkPerformSelectOps.Checked == false && chkPerformPostMatch.Checked == false)
{
performOptionFlag = 0;
}
else if (chkPerformSelectOps.Checked == true && chkPerformPostMatch.Checked == false)
{
performOptionFlag = 1;
}
else if (chkPerformSelectOps.Checked == false && chkPerformPostMatch.Checked == true)
{
performOptionFlag = 2;
}
else
{
performOptionFlag = 3;
}
NXPChangeConfig NXPConfigParms = new NXPChangeConfig();
NXPTAM1Authenticate NXPTAM1Parms = new NXPTAM1Authenticate();
NXPTAM2Authenticate NXPTAM2Parms = new NXPTAM2Authenticate();
ReadParms parameters = new ReadParms();
NXPTAM2Parms.replySetting = (byte)1;
NXPTAM2Parms.memoryProfile = (byte)comboBoxMemBank.SelectedIndex;
NXPTAM2Parms.offset = offsetValue;
NXPTAM2Parms.blockCount = (byte)comboBoxBlockCount.SelectedIndex;
NXPTAM2Parms.retryCount = retryCount;
NXPTAM2Parms.performOption = performOptionFlag;
parameters.accessPassword = Convert.ToUInt32(TEXTBOX_TagAccessAccessPassword.Text, 16);
parameters.common.tagFlag = false;
Array.Clear(parameters.common.bufMTII, 0, parameters.common.bufMTII.Length);
Array.Clear(parameters.common.bufMTIA, 0, parameters.common.bufMTIA.Length);
Array.Clear(parameters.common.bufSecondeMTIA, 0, parameters.common.bufSecondeMTIA.Length);
if (Result.OK != LakeChabotReader.MANAGED_ACCESS.API_l8K6CTagNXPSpecific(NXPSpecificFunID.TAM2Authenticate, NXPConfigParms, NXPTAM1Parms, NXPTAM2Parms, parameters, flag))
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = labelTagMemoryData.Text = "";
MessageDisplay("TAM2 authenticate command failed", "TAM2 Authentication", MessageBoxIcon.Error);
}
else if (parameters.common.tagFlag != true)
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = labelTagMemoryData.Text = "";
MessageDisplay("No Tag", "TAM2 Authentication", MessageBoxIcon.Warning);
}
else if (parameters.common.bufMTIA[tagErrorCode] != 0x00)
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = labelTagMemoryData.Text = "";
MessageDisplay("Tag Error Code : 0x" + parameters.common.bufMTIA[19].ToString("X2"),
"TAM2 Authentication", MessageBoxIcon.Error);
}
else if (parameters.common.bufMTIA[moduleErrorCode1] != 0x00 || parameters.common.bufMTIA[moduleErrorCode2] != 0x00)
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = labelTagMemoryData.Text = "";
MessageDisplay("Module Error Code : 0x" + parameters.common.bufMTIA[moduleErrorCode1].ToString("X2") + parameters.common.bufMTIA[moduleErrorCode2].ToString("X2"),
"TAM2 Authentication", MessageBoxIcon.Error);
}
else
{
textBoxEPC.Text = parameters.common.bufMTII[dataEPCStart].ToString("X2");
for (i = dataEPCStart + 1; i < dataEPCEnd + 1; i++)
{
textBoxEPC.Text += "-" + parameters.common.bufMTII[i].ToString("X2");
}
message = parameters.common.bufMTIA[dataMessageStart].ToString("X2");
labelRandomChallenge.Text = parameters.common.bufMTIA[dataMessageStart].ToString("X2");
for (i = dataMessageStart + 1; i < dataMessageEnd + 1; i++)
{
message += parameters.common.bufMTIA[i].ToString("X2");
labelRandomChallenge.Text += " " + parameters.common.bufMTIA[i].ToString("X2");
}
for (i = dataCipher1Start; i < dataCipher1End + 1; i++)
{
ciphertext1 += parameters.common.bufMTIA[i].ToString("X2");
}
for (i = dataCipher2Start; i < dataCipher2End + 1; i++)
{
ciphertext2 += parameters.common.bufMTIA[i].ToString("X2");
}
dataCipher2Start = 14; //The second part of ciphertext2 start address
dataCipher2End = 19; //The second part of ciphertext2 end address
for (i = dataCipher2Start; i < dataCipher2End + 1; i++)
{
ciphertext2 += parameters.common.bufSecondeMTIA[i].ToString("X2");
}
key = textBoxVerificationKey1.Text;
randomChallenge = AESECBDecrypt(ciphertext1, key);
returnedData = AESCBCDecrypt(ciphertext2, ciphertext1, key);
labelDecryptedChallenge.Text = randomChallenge.Substring(0, 2);
for (i = 2; i < randomChallenge.Length; i += 2)
{
labelDecryptedChallenge.Text += " " + randomChallenge.Substring(i, 2);
}
labelTagMemoryData.Text = returnedData.Substring(0, 2);
for (i = 2; i < returnedData.Length; i += 2)
{
labelTagMemoryData.Text += " " + returnedData.Substring(i, 2);
}
if (String.Compare(randomChallenge, message) == 0)
{
MessageDisplay("Authenticate Tag Success", "TAM2 Authentication", MessageBoxIcon.Information);
}
else
{
MessageDisplay("Authenticate Tag Fail; Confirm Verification Key1 is Correct.", "TAM2 Authentication", MessageBoxIcon.Error);
}
}
}
}
private void btnTAM1Authenticate_Click(object sender, EventArgs e)
{
byte flag = 0, performOptionFlag = 0;
int dataEPCStart = 28, dataEPCEnd = 39; //Reference the "MTI RFID Module Command Reference Manual-Table 3.9 - ISO 18000-6C Inventory-Response Packet Fields"
int dataMessageStart = 26, dataMessageStop = 35, dataCipherStart = 36, dataCipherStop = 51; //Reference the "MTI RFID Module Command Reference Manual-Table 3.10 - ISO 18000-6C Tag-Access Packet Fields"
int i;
string message = "", key = "", ciphertext = "", randomChallenge = "";
labelTagMemoryData.Text = "";
if ((textBoxVerificationKey0.Text.Length / 2) < 16)
{
MessageDisplay("Please enter 16 bytes hexadecimal value for verification Key0",
"TAM1 Authentication", MessageBoxIcon.Error);
}
else if (CheckKeyType(textBoxVerificationKey0.Text) != true)
{
MessageDisplay("Verification Key0 is invalid hexadecimal value", "TAM1 Authentication", MessageBoxIcon.Error);
}
else
{
if (chkPerformSelectOps.Checked == false && chkPerformPostMatch.Checked == false)
{
performOptionFlag = 0;
}
else if (chkPerformSelectOps.Checked == true && chkPerformPostMatch.Checked == false)
{
performOptionFlag = 1;
}
else if (chkPerformSelectOps.Checked == false && chkPerformPostMatch.Checked == true)
{
performOptionFlag = 2;
}
else
{
performOptionFlag = 3;
}
NXPChangeConfig NXPConfigParms = new NXPChangeConfig();
NXPTAM1Authenticate NXPTAM1Parms = new NXPTAM1Authenticate();
NXPTAM2Authenticate NXPTAM2Parms = new NXPTAM2Authenticate();
ReadParms parameters = new ReadParms();
NXPTAM1Parms.replySetting = (byte)1;
NXPTAM1Parms.keyID = (byte)0;
NXPTAM1Parms.retryCount = retryCount;
NXPTAM1Parms.performOption = performOptionFlag;
parameters.accessPassword = Convert.ToUInt32(TEXTBOX_TagAccessAccessPassword.Text, 16);
parameters.common.tagFlag = false;
Array.Clear(parameters.common.bufMTII, 0, parameters.common.bufMTII.Length);
Array.Clear(parameters.common.bufMTIA, 0, parameters.common.bufMTIA.Length);
if (Result.OK != LakeChabotReader.MANAGED_ACCESS.API_l8K6CTagNXPSpecific(NXPSpecificFunID.TAM1Authenticate, NXPConfigParms, NXPTAM1Parms, NXPTAM2Parms, parameters, flag))
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = "";
MessageDisplay("TAM1 authenticate command failed", "TAM1 Authentication", MessageBoxIcon.Error);
}
else if (parameters.common.tagFlag != true)
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = "";
MessageDisplay("No Tag", "TAM1 Authentication", MessageBoxIcon.Warning);
}
else if (parameters.common.bufMTIA[tagErrorCode] != 0x00)
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = "";
MessageDisplay("Tag Error Code : 0x" + parameters.common.bufMTIA[19].ToString("X2"),
"TAM1 Authentication", MessageBoxIcon.Error);
}
else if (parameters.common.bufMTIA[moduleErrorCode1] != 0x00 || parameters.common.bufMTIA[moduleErrorCode2] != 0x00)
{
labelRandomChallenge.Text = labelDecryptedChallenge.Text = "";
MessageDisplay("Module Error Code : 0x" + parameters.common.bufMTIA[moduleErrorCode1].ToString("X2") + parameters.common.bufMTIA[moduleErrorCode2].ToString("X2"),
"TAM1 Authentication", MessageBoxIcon.Error);
}
else
{
textBoxEPC.Text = parameters.common.bufMTII[dataEPCStart].ToString("X2");
for (i = dataEPCStart + 1; i < dataEPCEnd + 1; i++)
{
textBoxEPC.Text += "-" + parameters.common.bufMTII[i].ToString("X2");
}
message = parameters.common.bufMTIA[dataMessageStart].ToString("X2");
labelRandomChallenge.Text = parameters.common.bufMTIA[dataMessageStart].ToString("X2");
for (i = dataMessageStart + 1; i < dataMessageStop + 1; i++)
{
message += parameters.common.bufMTIA[i].ToString("X2");
labelRandomChallenge.Text += " " + parameters.common.bufMTIA[i].ToString("X2");
}
for (i = dataCipherStart; i < dataCipherStop + 1; i++)
{
ciphertext += parameters.common.bufMTIA[i].ToString("X2");
}
key = textBoxVerificationKey0.Text;
randomChallenge = AESECBDecrypt(ciphertext, key);
labelDecryptedChallenge.Text = randomChallenge.Substring(0, 2);
for (i = 2; i < randomChallenge.Length; i += 2)
{
labelDecryptedChallenge.Text += " " + randomChallenge.Substring(i, 2);
}
if (String.Compare(randomChallenge, message) == 0)
{
MessageDisplay("Authenticate Tag Success", "TAM1 Authentication", MessageBoxIcon.Information);
}
else
{
MessageDisplay("Authenticate Tag Fail; Confirm Verification Key0 is Correct.", "TAM1 Authentication", MessageBoxIcon.Error);
}
}
}
}