private BiometricsInformationRecord ToBiometricsInformationRecordFromString(string value)
{
BiometricsInformationRecord Result = null;
if ((!string.IsNullOrEmpty(value)) && (value.Length >= 45))
{
byte[] array = InteropCommon.ToByteArrayFromString(value, _binaryConversion);
int BDBLength = BitConverter.ToInt32(array, 0) - 45;
Version headerVersion = new Version((int)array[4], 0);
BirDataTypes bdt = (BirDataTypes)InteropEnum <BirDataTypes> .ToEnumFromInteger((int)array[5]);
int formatIDOwner = BitConverter.ToUInt16(array, 7);
int formatIDType = BitConverter.ToUInt16(array, 9);
BirPurpose BIRPurpose = (BirPurpose)InteropEnum <BirPurpose> .ToEnumFromInteger((int)array[11]);
int biometricTypeInteger = BitConverter.ToInt32(array, 12);
SensorType biometricType = (SensorType)InteropEnum <SensorType> .ToEnumFromInteger(biometricTypeInteger);
byte[] bdb = null;
if (BDBLength > 0)
{
bdb = new byte[BDBLength];
Array.Copy(array, 45, bdb, 0, BDBLength);
}
Result = new BiometricsInformationRecord(headerVersion, bdt, formatIDOwner, formatIDType, BIRPurpose, biometricType, bdb);
}
return(Result);
}
public override BiometricsInformationRecord ProcessPrematchData(BiometricsInformationRecord sampleBir, BiometricsInformationRecord prematchDataBir)
{
string ProcessedBIR = "";
VerifyResult(_cco.ProcessPrematchData(InteropCommon.ToStringFromByteArray(ToByteArrayFromBiometricsInformationRecord(sampleBir), _binaryConversion), InteropCommon.ToStringFromByteArray(ToByteArrayFromBiometricsInformationRecord(prematchDataBir), _binaryConversion), ProcessedBIR));
return(ToBiometricsInformationRecordFromString(ProcessedBIR));
}
public StoredBir(string name, string finger, string serviceObject, BiometricsInformationRecord bir)
: base(bir)
{
_name = name;
_finger = finger;
_ServiceObject = serviceObject;
}
private void AddBir(string userName, string finger, string serviceObject, BiometricsInformationRecord bir)
{
try
{
StoredBir sb = new StoredBir(userName, finger, serviceObject, bir);
Birs.Add(sb);
lbBirs.Items.Add(sb);
SaveBirs();
}
catch (Exception ae)
{
ShowException(ae);
}
}
public override BiometricsVerifyResult VerifyMatch(int maximumFalseAcceptRateRequested, int maximumFalseRejectRateRequested, bool falseAcceptRatePrecedence, BiometricsInformationRecord sampleBir, BiometricsInformationRecord referenceBir, bool adaptBir)
{
string AdaptedBIRString = adaptBir ? "" : null;
int[] CandidateRanking = new int[1] {
0
};
bool Result = false;
int FARArchived = 0;
int FRRArchived = 0;
string Payload = "";
VerifyResult(_cco.VerifyMatch(maximumFalseAcceptRateRequested, maximumFalseRejectRateRequested, falseAcceptRatePrecedence, InteropCommon.ToStringFromByteArray(ToByteArrayFromBiometricsInformationRecord(sampleBir), _binaryConversion), InteropCommon.ToStringFromByteArray(ToByteArrayFromBiometricsInformationRecord(referenceBir), _binaryConversion), AdaptedBIRString, Result, FARArchived, FRRArchived, Payload));
BiometricsInformationRecord AdaptedBIR = null;
if (adaptBir && !string.IsNullOrEmpty(AdaptedBIRString))
{
AdaptedBIR = ToBiometricsInformationRecordFromString(AdaptedBIRString);
}
return(new BiometricsVerifyResult(Result, FARArchived, FRRArchived, AdaptedBIR, InteropCommon.ToByteArrayFromString(Payload, _binaryConversion)));
}
private byte[] ToByteArrayFromBiometricsInformationRecord(BiometricsInformationRecord value)
{
if (value == null)
{
return(null);
}
byte[] Result = null;
try
{
int length = value.BiometricDataBlockSize + 45;
Result = new byte[length];
Array.Clear(Result, 0, length);
byte[] work = BitConverter.GetBytes(length);
Array.Copy(work, Result, 4);
Result[4] = (byte)value.Version.Major;
Result[5] = (byte)(int)value.DataType;
work = BitConverter.GetBytes(value.FormatOwner);
Result[6] = work[0];
Result[7] = work[1];
work = BitConverter.GetBytes(value.FormatId);
Result[8] = work[0];
Result[9] = work[1];
Result[11] = (byte)(int)value.Purpose;
work = BitConverter.GetBytes((int)value.SensorType);
Array.Copy(work, 0, Result, 12, 4);
if (value.BiometricDataBlockSize > 0)
{
Array.Copy(value.GetBiometricDataBlock(), 0, Result, 45, value.BiometricDataBlockSize);
}
}
catch
{
Result = null;
}
return(Result);
}
public override int[] IdentifyMatch(int maximumFalseAcceptRateRequested, int maximumFalseRejectRateRequested, bool falseAcceptRatePrecedence, BiometricsInformationRecord sampleBir, IEnumerable <BiometricsInformationRecord> referenceBirPopulation)
{
string[] ReferenceBIRPopulation = ToStringArrayFromBiometricsInformationRecords(referenceBirPopulation);
int[] CandidateRanking = new int[1] {
0
};
VerifyResult(_cco.IdentifyMatch(maximumFalseAcceptRateRequested, maximumFalseRejectRateRequested, falseAcceptRatePrecedence, InteropCommon.ToStringFromByteArray(ToByteArrayFromBiometricsInformationRecord(sampleBir), _binaryConversion), ReferenceBIRPopulation, CandidateRanking));
return(CandidateRanking);
}
public override void BeginEnrollCapture(BiometricsInformationRecord referenceBir, byte[] payload)
{
VerifyResult(_cco.BeginEnrollCapture(InteropCommon.ToStringFromByteArray(ToByteArrayFromBiometricsInformationRecord(referenceBir), _binaryConversion), InteropCommon.ToStringFromByteArray(payload, _binaryConversion)));
}
private void AddBir(string userName, string finger, string serviceObject, BiometricsInformationRecord bir)
{
try
{
StoredBir sb = new StoredBir(userName, finger, serviceObject, bir);
Birs.Add(sb);
lbBirs.Items.Add(sb);
SaveBirs();
}
catch (Exception ae)
{
ShowException(ae);
}
}
public StoredBir(string name, string finger, string serviceObject, BiometricsInformationRecord bir)
: base(bir)
{
_name = name;
_finger = finger;
_ServiceObject = serviceObject;
}
