public static void SaveValueIntoTpm(int address, byte[] data, int length)
{
Tpm2Device tpmDevice;
if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Windows))
{
tpmDevice = new TbsDevice();
}
else
{
tpmDevice = new LinuxTpmDevice();
}
tpmDevice.Connect();
var tpm = new Tpm2(tpmDevice);
var ownerAuth = new AuthValue();
TpmHandle nvHandle = TpmHandle.NV(address);
tpm[ownerAuth]._AllowErrors().NvUndefineSpace(TpmHandle.RhOwner, nvHandle);
AuthValue nvAuth = authValue;
var nvPublic = new NvPublic(nvHandle, TpmAlgId.Sha1, NvAttr.Authwrite | NvAttr.Authread, new byte[0], (ushort)length);
tpm[ownerAuth].NvDefineSpace(TpmHandle.RhOwner, nvAuth, nvPublic);
tpm[nvAuth].NvWrite(nvHandle, nvHandle, data, 0);
tpm.Dispose();
}
public override void ExecuteInternal()
{
Tpm2Device?tpmDevice = null;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
tpmDevice = new TbsDevice();
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
tpmDevice = new LinuxTpmDevice();
}
if (tpmDevice is Tpm2Device)
{
//
}
tpmDevice?.Dispose();
}
public static byte[] ReadValueFromTpm(int address, int length)
{
Tpm2Device tpmDevice;
if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Windows))
{
tpmDevice = new TbsDevice();
}
else
{
tpmDevice = new LinuxTpmDevice();
}
tpmDevice.Connect();
var tpm = new Tpm2(tpmDevice);
TpmHandle nvHandle = TpmHandle.NV(address);
AuthValue nvAuth = authValue;
byte[] newData = tpm[nvAuth].NvRead(nvHandle, nvHandle, (ushort)length, 0);
tpm.Dispose();
return(newData);
}
public static byte[] ReadData(int tailleData)
{
Tpm2Device tpmDevice;
if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Windows))
{
tpmDevice = new TbsDevice();
}
else
{
tpmDevice = new LinuxTpmDevice();
}
tpmDevice.Connect();
var tpm = new Tpm2(tpmDevice);
TpmHandle nvHandle = TpmHandle.NV(indexTMPSlot);
AuthValue nvAuth = nvAuthValue;
byte[] newData = tpm[nvAuth].NvRead(nvHandle, nvHandle, (ushort)tailleData, 0);
tpm.Dispose();
return(newData);
}
/// <summary>
/// Executes the hashing functionality. After parsing arguments, the
/// function connects to the selected TPM device and invokes the TPM
/// commands on that connection.
/// </summary>
/// <param name="args">Arguments to this program.</param>
static void Main(string[] args)
{
//
// Parse the program arguments. If the wrong arguments are given or
// are malformed, then instructions for usage are displayed and
// the program terminates.
//
string tpmDeviceName = ParseArguments(args);
if (tpmDeviceName == null)
{
return;
}
try
{
//
// Create the device according to the selected connection.
//
Tpm2Device tpmDevice;
switch (tpmDeviceName)
{
case DeviceSim:
tpmDevice = new TcpTpmDevice(DefaultSimulatorName, DefaultSimulatorPort);
break;
case DeviceWinTbs:
tpmDevice = new TbsDevice();
break;
case DeviceLinux:
tpmDevice = new LinuxTpmDevice();
break;
default:
throw new Exception("Unknown device selected.");
}
//
// Connect to the TPM device. This function actually establishes the
// connection.
//
tpmDevice.Connect();
//
// Pass the device object used for communication to the TPM 2.0 object
// which provides the command interface.
//
var tpm = new Tpm2(tpmDevice);
if (tpmDevice is TcpTpmDevice)
{
//
// If we are using the simulator, we have to do a few things the
// firmware would usually do. These actions have to occur after
// the connection has been established.
//
tpmDevice.PowerCycle();
tpm.Startup(Su.Clear);
}
Pcrs(tpm);
QuotePcrs(tpm);
StorageRootKey(tpm);
//
// Need a synchronization event to avoid disposing TPM object before
// asynchronous method completed.
//
var sync = new AutoResetEvent(false);
Console.WriteLine("Calling asynchronous method.");
PrimarySigningKeyAsync(tpm, sync);
Console.WriteLine("Waiting for asynchronous method to complete.");
sync.WaitOne();
//
// Clean up.
//
tpm.Dispose();
}
catch (Exception e)
{
Console.WriteLine("Exception occurred: {0}", e.Message);
}
Console.WriteLine("Press Any Key to continue.");
Console.ReadLine();
}
/// <summary>
/// After parsing the arguments for the TPM device, the program executes a read
/// of the prior initialized NV index (3001). The program then outputs the 8 bytes
/// previously stored at that index.
/// </summary>
/// <param name="args">Arguments to this program.</param>
static void Main(string[] args)
{
//
// Parse the program arguments. If the wrong arguments are given or
// are malformed, then instructions for usage are displayed and
// the program terminates.
//
string tpmDeviceName;
if (!ParseArguments(args, out tpmDeviceName))
{
WriteUsage();
return;
}
try
{
Tpm2Device tpmDevice;
switch (tpmDeviceName)
{
case DeviceSimulator:
tpmDevice = new TcpTpmDevice(DefaultSimulatorName, DefaultSimulatorPort);
break;
case DeviceWinTbs:
tpmDevice = new TbsDevice();
break;
case DeviceLinux:
tpmDevice = new LinuxTpmDevice();
break;
default:
throw new Exception("Unknown device selected.");
}
tpmDevice.Connect();
var tpm = new Tpm2(tpmDevice);
if (tpmDevice is TcpTpmDevice)
{
//
// If we are using the simulator, we have to do a few things the
// firmware would usually do. These actions have to occur after
// the connection has been established.
//
tpmDevice.PowerCycle();
tpm.Startup(Su.Clear);
}
NVReadOnly(tpm);
// TPM clean up procedure
tpm.Dispose();
}
catch (Exception e)
{
Console.WriteLine("Exception occurred: {0}", e.Message);
}
Console.WriteLine("Press Any Key to continue.");
Console.ReadLine();
}
