// XXX if ever using ecc change this to include that.
internal static string getHashfunction(ParameterSet pSet)
{
if (pSet.Name == "1.3.6.1.4.1.311.75.1.1.0")
{
return "1.3.14.3.2.26"; // sha-1
}
else
{
return "2.16.840.1.101.3.4.2.1"; //sha-256
}
}
public DeviceManager(SmartCardParams smartCardParams, ParameterSet parameterSet, bool useVirtualDevice = true)
{
this.UseVirtualDevice = useVirtualDevice;
this.parameterSet = parameterSet;
if (smartCardParams == null)
{
this.smartCardParam = new SmartCardParams("1234", 1, 0, 1);
}
else
{
this.smartCardParam = smartCardParams;
}
}
private void InitDevice(ParameterSet set)
{
if (device == null)
{
if (UseVirtualDevice)
{
device = new VirtualDevice(set, new BigInteger(1, deviceSecret));
}
else
{
// use a smartcard
device = new SmartCardDevice(set.Group, set.Gd, smartCardParam);
}
Gq = set.Group;
HashFunctionOID = SecurityLevelUtils.getHashfunction(set);
hash = new HashFunction(HashFunctionOID);
Gd = set.Gd;
}
}
/// <summary>
/// Constructs a new VirtualDevice instance.
/// </summary>
/// <param name="parameterSet">The parameter set.</param>
/// <param name="xd">The device private key.</param>
/// <param name="preGenWdPrime">The pregenerated w_d prime value (for one presentation)</param>
public VirtualDevice(ParameterSet parameterSet, FieldZqElement xd, FieldZqElement preGenWdPrime)
: this(parameterSet.Group, parameterSet.Gd, FieldZq.CreateFieldZq(parameterSet.Group.Q), xd, preGenWdPrime)
{
}
/// <summary>
/// Constructs a new VirtualDevice instance.
/// </summary>
/// <param name="parameterSet">The parameter set.</param>
/// <param name="xd">The device private key.</param>
public VirtualDevice(ParameterSet parameterSet, FieldZqElement xd)
: this(parameterSet, xd, null)
{ }
/// <summary>
/// Constructs a new VirtualDevice instance.
/// </summary>
/// <param name="parameterSet">The parameter set.</param>
public VirtualDevice(ParameterSet parameterSet)
: this(parameterSet, null, null)
{ }
/// <summary>
/// Constructs a new VirtualDevice instance.
/// </summary>
/// <param name="parameterSet">The parameter set.</param>
/// <param name="xd">The device private key.</param>
/// <param name="preGenWdPrime">The pregenerated w_d prime value (for one presentation)</param>
public VirtualDevice(ParameterSet parameterSet, FieldZqElement xd, FieldZqElement preGenWdPrime)
: this(parameterSet.Group, parameterSet.Gd, FieldZq.CreateFieldZq(parameterSet.Group.Q), xd, preGenWdPrime)
{
}
/// <summary>
/// Constructs a new VirtualDevice instance.
/// </summary>
/// <param name="parameterSet">The parameter set.</param>
/// <param name="xd">The device private key.</param>
public VirtualDevice(ParameterSet parameterSet, FieldZqElement xd)
: this(parameterSet, xd, null)
{
}
/// <summary>
/// Constructs a new VirtualDevice instance.
/// </summary>
/// <param name="parameterSet">The parameter set.</param>
public VirtualDevice(ParameterSet parameterSet)
: this(parameterSet, null, null)
{
}
