Package de.gmxhome.conrad.jpos.jpos_base.biometrics

Class BiometricsProperties

java.lang.Object

de.gmxhome.conrad.jpos.jpos_base.JposCommonProperties

de.gmxhome.conrad.jpos.jpos_base.biometrics.BiometricsProperties

All Implemented Interfaces:

BiometricsInterface, JposBaseInterface

public class BiometricsProperties
extends JposCommonProperties
implements BiometricsInterface

Class containing the biometrics specific properties, their default values and default implementations of BiometricsInterface. For details about properties, methods and method parameters, see UPOS specification, chapter Biometrics.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BiometricsProperties.BiometricInformationRecord	Helper class for Biometric Information Record (BIR) interpretation.

Field Summary

Fields

Modifier and Type	Field	Description
Integer	Algorithm	UPOS property Algorithm.
int	AlgorithmDef	Default value of Algorithm property.
String	AlgorithmList	UPOS property AlgorithmList.
byte[]	BIR	UPOS property BIR.
boolean	CapPrematchData	UPOS property CapPrematchData.
boolean	CapRawSensorData	UPOS property CapRawSensorData.
boolean	CapRealTimeData	UPOS property CapRealTimeData.
int	CapSensorColor	UPOS property CapSensorColor.
int	CapSensorOrientation	UPOS property CapSensorOrientation.
Integer	CapSensorType	UPOS property CapSensorType.
int	CapSensorTypeDef	Default value of CapSensorType property.
boolean	CapTemplateAdaptation	UPOS property CapTemplateAdaptation.
byte[]	RawSensorData	UPOS property RawSensorData.
boolean	RealTimeDataEnabled	UPOS property RealTimeDataEnabled.
Integer	SensorBPP	UPOS property SensorBPP.
int	SensorColor	UPOS property SensorColor.
Integer	SensorHeight	UPOS property SensorHeight.
Integer	SensorOrientation	UPOS property SensorOrientation.
int	SensorOrientationDef	Default value of SensorOrientation property.
Integer	SensorType	UPOS property SensorType.
Integer	SensorTypeDef	Default value of SensorType property.
Integer	SensorWidth	UPOS property SensorWidth.

Fields inherited from class de.gmxhome.conrad.jpos.jpos_base.JposCommonProperties

AllowAlwaysSetProperties, AllowDeprecatedMethods, AsyncInputActive, AsyncMode, AutoDisable, CapStatisticsReporting, CapUpdateStatistics, CheckHealthText, Claimed, Claiming, ClaimWaiters, CurrentCommands, CurrentUnitID, DataCount, DataEventEnabled, DataEventList, Device, DeviceEnabled, DeviceServiceDescription, DeviceServiceVersion, DevProps, ErrorString, ErrorUnits, EventCB, EventList, EventSource, EventString, EventUnitID, EventUnits, ExclusiveAllowed, ExclusiveNo, ExclusiveUse, ExclusiveYes, FirstEnableHappened, FlagWhenIdle, FlagWhenIdleStatusValue, FreezeEvents, Index, LogicalName, MaximumConfirmationEventWaitingTime, OutputID, PowerNotify, PowerState, SerializedRequestRunner, SerializedRequests, State, StrictFIFOEventHandling, SuspendedCommands, SuspendedConcurrentCommands, UnitsOnline, UsesSubsystemUnits

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BiometricsProperties(int dev)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	algorithm(int newAlgorithm)	Final part of setting Algorithm.
void	beginEnrollCapture(byte[] referenceBIR, byte[] payload)	Final part of BeginEnrollCapture method.
void	beginVerifyCapture()	Final part of BeginVerifyCapture method.
boolean	checkBIRPurpose(byte[] bir, Boolean verify)	Checks if a BIR is valid for a given purpose.
void	checkFARorFRRLimit(int limit, String name)	Checks whether a FAR or FRR limit is valid.
void	endCapture()	Final part of EndCapture method.
void	identify(int maxFARRequested, int maxFRRRequested, boolean fARPrecedence, byte[][] referenceBIRPopulation, int[][] candidateRanking, int timeout)	Final part of Identify method.
void	identifyMatch(int maxFARRequested, int maxFRRRequested, boolean fARPrecedence, byte[] sampleBIR, byte[][] referenceBIRPopulation, int[][] candidateRanking)	Final part of IdentifyMatch method.
void	initOnClaim()	Initialize properties that must be initialized whenever the device will be claimed.
boolean	initOnFirstEnable()	Initialize properties that must be initialized whenever the device will be enabled the first time-
void	initOnOpen()	Initialization of properties that must be initialized during open.
boolean	isDataEmpty(byte[] data, boolean isBIR)	Checks whether a given BIR or payload is empty.
void	processPrematchData(byte[] sampleBIR, byte[] prematchDataBIR, byte[][] processedBIR)	Final part of ProcessPrematchData method.
void	realTimeDataEnabled(boolean newRealTimeDataEnabled)	Final part of setting RealTimeDataEnabled.
void	sensorColor(int newSensorColor)	Final part of setting SensorColor.
void	sensorOrientation(int newSensorOrientation)	Final part of setting SensorOrientation.
void	sensorType(int newSensorType)	Final part of setting SensorType.
void	verify(int maxFARRequested, int maxFRRRequested, boolean fARPrecedence, byte[] referenceBIR, byte[][] adaptedBIR, boolean[] result, int[] fARAchieved, int[] fRRAchieved, byte[][] payload, int timeout)	Final part of Verify method.
void	verifyMatch(int maxFARRequested, int maxFRRRequested, boolean fARPrecedence, byte[] sampleBIR, byte[] referenceBIR, byte[][] adaptedBIR, boolean[] result, int[] fARAchieved, int[] fRRAchieved, byte[][] payload)	Final part of VerifyMatch method.

Methods inherited from class de.gmxhome.conrad.jpos.jpos_base.JposCommonProperties

addProperties, asyncMode, attachWaiter, autoDisable, checkForDeprecation, checkHealth, checkProperties, claim, clearDataProperties, clearErrorProperties, clearInput, clearOutput, clearOutputErrorProperties, close, compareFirmwareVersion, dataEventEnabled, deviceEnabled, directIO, directIO, flagWhenIdle, freezeEvents, getClaimingInstance, handlePowerStateOnEnable, initOnEnable, newJposOutputRequest, open, powerNotify, release, releaseWaiter, removeFromPropertySetList, resetStatistics, retrieveStatistics, retryInput, retryOutput, signalWaiter, unitDataCount, updateFirmware, updateFirmware, updateStatistics, waitWaiter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.gmxhome.conrad.jpos.jpos_base.JposBaseInterface

asyncMode, autoDisable, checkHealth, claim, clearInput, clearOutput, close, compareFirmwareVersion, dataEventEnabled, deviceEnabled, directIO, directIO, flagWhenIdle, freezeEvents, handlePowerStateOnEnable, newJposOutputRequest, open, powerNotify, release, removeFromPropertySetList, resetStatistics, retrieveStatistics, retryInput, retryOutput, unitDataCount, updateFirmware, updateFirmware, updateStatistics

Field Details

CapPrematchData

public boolean CapPrematchData

UPOS property CapPrematchData. Default: false. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

CapRawSensorData

public boolean CapRawSensorData

UPOS property CapRawSensorData. Default: false. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

CapRealTimeData

public boolean CapRealTimeData

UPOS property CapRealTimeData. Default: false. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

CapSensorColor

public int CapSensorColor

UPOS property CapSensorColor. Default: CSC_MONO. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

CapSensorOrientation

public int CapSensorOrientation

UPOS property CapSensorOrientation. Default: CSO_NORMAL. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

CapSensorTypeDef

public int CapSensorTypeDef

Default value of CapSensorType property. Default: CST_PASSWORD. Should be updated before calling initOnEnable the first time.

CapSensorType

public Integer CapSensorType

UPOS property CapSensorType. Default: null. Must be overwritten by objects derived from JposDevice at least when the device is enabled the first time.

CapTemplateAdaptation

public boolean CapTemplateAdaptation

UPOS property CapTemplateAdaptation. Default: false. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

AlgorithmDef

public int AlgorithmDef

Default value of Algorithm property. Default: 0. Should be updated before calling initOnClaim the first time.

Algorithm

public Integer Algorithm

UPOS property Algorithm. Default: null. Can be overwritten by objects derived from JposDevice within the changeDefaults method.

AlgorithmList

public String AlgorithmList

UPOS property AlgorithmList. Default: "". Should be overwritten by objects derived from JposDevice within the changeDefaults method.

BIR

public byte[] BIR

UPOS property BIR. Default: null.

RawSensorData

public byte[] RawSensorData

UPOS property RawSensorData. Default: null.

RealTimeDataEnabled

public boolean RealTimeDataEnabled

UPOS property RealTimeDataEnabled. Set to false in initOnOpen method..

SensorBPP

public Integer SensorBPP

UPOS property SensorBPP. Default: null. Must be overwritten by objects derived from JposDevice within the changeDefaults method.

SensorColor

public int SensorColor

UPOS property SensorColor. Default: SC_MONO. Can be overwritten by objects derived from JposDevice within the changeDefaults method, must be overwritten if CapSensorColor does not contain CSC_MONO.

SensorHeight

public Integer SensorHeight

UPOS property SensorHeight. Default: null. Must be overwritten by objects derived from JposDevice within the changeDefaults method.

SensorOrientationDef

public int SensorOrientationDef

Default value of SensorOrientation property. Default: SC_MONO. Should be updated before calling initOnClaim the first time. Must be overwritten if CapSensorOrientation does not contain CSO_NORMAL.

SensorOrientation

public Integer SensorOrientation

UPOS property SensorOrientation.

SensorTypeDef

public Integer SensorTypeDef

Default value of SensorType property. Default: null. Must be overwritten before any call to method initOnClaim.

SensorType

public Integer SensorType

UPOS property SensorType. Default: null. Must be overwritten by objects derived from JposDevice at least when the device is enabled the first time.

SensorWidth

public Integer SensorWidth

UPOS property SensorWidth. Default: null. Must be overwritten by objects derived from JposDevice within the changeDefaults method.

Constructor Details

BiometricsProperties

protected BiometricsProperties(int dev)

Constructor.

Parameters:

dev - Device index

Method Details

initOnOpen

public void initOnOpen()

Description copied from class: JposCommonProperties

Initialization of properties that must be initialized during open.

Overrides:

initOnOpen in class JposCommonProperties

initOnClaim

public void initOnClaim()

Description copied from class: JposCommonProperties

Initialize properties that must be initialized whenever the device will be claimed.

Overrides:

initOnClaim in class JposCommonProperties

initOnFirstEnable

public boolean initOnFirstEnable()

Description copied from class: JposCommonProperties

Initialize properties that must be initialized whenever the device will be enabled the first time-

Overrides:

initOnFirstEnable in class JposCommonProperties

Returns:

Returns true in case of first enable.

algorithm

public void algorithm(int newAlgorithm)
               throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of setting Algorithm. Can be overwritten within derived classes, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is claimed,
• Device is not enabled,
• newAlgorithm is between 0 and the number of algorithms specified in AlgorithmList.

Specified by:

algorithm in interface BiometricsInterface

Parameters:

newAlgorithm - New value for Algorithm property.

Throws:

jpos.JposException - If an error occurs.

realTimeDataEnabled

public void realTimeDataEnabled(boolean newRealTimeDataEnabled)
                         throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of setting RealTimeDataEnabled. Can be overwritten within derived classes, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is open,
• CapRealTimeData is true or newRealTimeData is false,
• internal property AllowAlwaysSetProperties is true or newRealTimeDataEnabled equals the previous value of RealTimeDataEnabled.

Specified by:

realTimeDataEnabled in interface BiometricsInterface

Parameters:

newRealTimeDataEnabled - New value for RealTimeDataEnabled property.

Throws:

jpos.JposException - If an error occurs.

sensorColor

public void sensorColor(int newSensorColor)
                 throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of setting SensorColor. Can be overwritten within derived classes, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is open,
• newSensorColor is one of SC_MONO, SC_GRAYSCALE, SC_16, SC_256 or SC_FULL,
• the corresponding bit in CapSensorColor is set,
• internal property AllowAlwaysSetProperties is true or newSensorColor equals the previous value of SensorColor.

Specified by:

sensorColor in interface BiometricsInterface

Parameters:

newSensorColor - New value for SensorColor property.

Throws:

jpos.JposException - If an error occurs.

sensorOrientation

public void sensorOrientation(int newSensorOrientation)
                       throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of setting SensorOrientation. Can be overwritten within derived classes, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is claimed,
• Device is not enabled,
• newSensorOrientation is one of SO_NORMAL, SO_RIGHT, SO_INVERTED or SO_LEFT,
• the corresponding bit in CapSensorOrientation is set.

Specified by:

sensorOrientation in interface BiometricsInterface

Parameters:

newSensorOrientation - New value for SensorOrientation property.

Throws:

jpos.JposException - If an error occurs.

sensorType

public void sensorType(int newSensorType)
                throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of setting SensorType. Can be overwritten within derived classes, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• newSensorType is one of ST_FACIAL_FEATURES, ST_VOICE, ST_FINGERPRINT, ST_IRIS, ST_RETINA, ST_HAND_GEOMETRY, ST_SIGNATURE_DYNAMICS, ST_KEYSTROKE_DYNAMICS, ST_LIP_MOVEMENT, ST_THERMAL_FACE_IMAGE, ST_THERMAL_HAND_IMAGE, ST_GAIT or ST_PASSWORD,
• the corresponding bit in CapSensorType is set.

Specified by:

sensorType in interface BiometricsInterface

Parameters:

newSensorType - New value for SensorType property.

Throws:

jpos.JposException - If an error occurs.

beginEnrollCapture

public void beginEnrollCapture(byte[] referenceBIR,
 byte[] payload)
                        throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of BeginEnrollCapture method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• referenceBIR and payload are not null (null arguments will be passed as byte[0]),
• CapTemplateAdaptation or isEmpty(referenceBIR, true) is true.

Specified by:

beginEnrollCapture in interface BiometricsInterface

Parameters:

referenceBIR - Optional BIR to be adapted (updated).

payload - Data that will be stored by the BSP.

Throws:

jpos.JposException - If an error occurs.

beginVerifyCapture

public void beginVerifyCapture()
                        throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of BeginVerifyCapture method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled.

Specified by:

beginVerifyCapture in interface BiometricsInterface

Throws:

jpos.JposException - If an error occurs.

endCapture

public void endCapture()
                throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of EndCapture method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled.

Specified by:

endCapture in interface BiometricsInterface

Throws:

jpos.JposException - If an error occurs.

identify

public void identify(int maxFARRequested,
 int maxFRRRequested,
 boolean fARPrecedence,
 byte[][] referenceBIRPopulation,
 int[][] candidateRanking,
 int timeout)
              throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of Identify method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• maxFARRequested and maxFRRRequested have been checked with checkFARorFRRLimit,
• timeout is positive or FOREVER,
• referenceBIRPopulation has a length > 0,
• each referenceBIR in referenceBIRPopulation is valid (checkBIRPurpose(referenceBIR, null) is true),
• candidateRanking is a valid reference (non-null int[1][]).

Even if FAR and FRR are specified to be percentage values in the UPOS specification, the corresponding values have been specified as probability value in 1/Integer.MAX_VALUE units in the BioAPI.

Specified by:

identify in interface BiometricsInterface

Parameters:

maxFARRequested - The requested FAR criterion for successful verification.

maxFRRRequested - The requested FRR criterion for successful verification.

fARPrecedence - If both criteria are provided, this parameter indicates which takes precedence.

referenceBIRPopulation - An array of BIRs against which the Identify match is performed.

candidateRanking - Array reference of BIR indices from the referenceBIRPopulation listed in rank order.

timeout - Timeout for successful biometric capture.

Throws:

jpos.JposException - If an error occurs.

identifyMatch

public void identifyMatch(int maxFARRequested,
 int maxFRRRequested,
 boolean fARPrecedence,
 byte[] sampleBIR,
 byte[][] referenceBIRPopulation,
 int[][] candidateRanking)
                   throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of IdentifyMatch method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• maxFARRequested and maxFRRRequested have been checked with checkFARorFRRLimit,
• sampleBIR is not empty (isDataEmpty(sampleBIR, true) is false),
• referenceBIRPopulation has a length > 0,
• each referenceBIR in referenceBIRPopulation is valid (checkBIRPurpose(referenceBIR, null) is true),
• candidateRanking is a valid reference (non-null int[1][]).

Specified by:

identifyMatch in interface BiometricsInterface

Parameters:

maxFARRequested - The requested FAR criterion for successful verification.

maxFRRRequested - The requested FRR criterion for successful verification.

fARPrecedence - If both criteria are provided, this parameter indicates which takes precedence.

sampleBIR - The BIR to be identified.

referenceBIRPopulation - An array of BIRs against which the Identify match is performed.

candidateRanking - Array reference of BIR indices from the referenceBIRPopulation listed in rank order.

Throws:

jpos.JposException - If an error occurs.

processPrematchData

public void processPrematchData(byte[] sampleBIR,
 byte[] prematchDataBIR,
 byte[][] processedBIR)
                         throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of ProcessPrematchData method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• sampleBIR and prematchDataBIR are not empty (isEmpty(sampleBIR, true) and isEmpty(prematchDataBIR, true) are false),
• processedBIR is a valid reference (non-null byte[1][]),
• CapPrematchData is true.

Specified by:

processPrematchData in interface BiometricsInterface

Parameters:

sampleBIR - BIR to be processed.

prematchDataBIR - BIR containing prematch data.

processedBIR - Reference for the new constructed BIR.

Throws:

jpos.JposException - If an error occurs.

verify

public void verify(int maxFARRequested,
 int maxFRRRequested,
 boolean fARPrecedence,
 byte[] referenceBIR,
 byte[][] adaptedBIR,
 boolean[] result,
 int[] fARAchieved,
 int[] fRRAchieved,
 byte[][] payload,
 int timeout)
            throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of Verify method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• maxFARRequested and maxFRRRequested have been checked with checkFARorFRRLimit,
• timeout is positive or FOREVER,
• referenceBIR is valid (checkBIRPurpose(referenceBIR, null) is true),
• adaptedBIR is a valid reference (non-null byte[1][]),
• result is a valid reference (non-null boolean[1]),
• fARAchieved and fRRAchieved are a valid references (non-null int[1]),
• payload is a valid reference (non-null byte[1][]),
• adaptedBIR is a valid reference (non-null byte[1][]),
• candidateRanking is a valid reference (non-null int[1][]).

Specified by:

verify in interface BiometricsInterface

Parameters:

maxFARRequested - The requested FAR criterion for successful verification.

maxFRRRequested - The requested FRR criterion for successful verification.

fARPrecedence - If both criteria are provided, this parameter indicates which takes precedence.

referenceBIR - The BIR to be verified against.

adaptedBIR - Reference of the adapted BIR.

result - Reference of the result.

fARAchieved - Reference to FAR Value indicating the closeness of the match.

fRRAchieved - Reference to FRR Value indicating the closeness of the match.

payload - Reference to optional payload.

timeout - Timeout for successful verification.

Throws:

jpos.JposException - If an error occurs.

verifyMatch

public void verifyMatch(int maxFARRequested,
 int maxFRRRequested,
 boolean fARPrecedence,
 byte[] sampleBIR,
 byte[] referenceBIR,
 byte[][] adaptedBIR,
 boolean[] result,
 int[] fARAchieved,
 int[] fRRAchieved,
 byte[][] payload)
                 throws jpos.JposException

Description copied from interface: BiometricsInterface

Final part of VerifyMatch method. Can be overwritten in derived class, if necessary. This method will be called only if the following plausibility checks lead to a positive result:

• Device is enabled,
• maxFARRequested and maxFRRRequested have been checked with checkFARorFRRLimit,
• timeout is positive or FOREVER,
• sampleBIR is not empty (isDataEmpty(sampleBIR, true) is false),
• referenceBIR is valid (checkBIRPurpose(referenceBIR, null) is true),
• adaptedBIR is a valid reference (non-null byte[1][]),
• result is a valid reference (non-null boolean[1]),
• fARAchieved and fRRAchieved are a valid references (non-null int[1]),
• payload is a valid reference (non-null byte[1][]),
• adaptedBIR is a valid reference (non-null byte[1][]),
• candidateRanking is a valid reference (non-null int[1][]).

Specified by:

verifyMatch in interface BiometricsInterface

Parameters:

maxFARRequested - The requested FAR criterion for successful verification.

maxFRRRequested - The requested FRR criterion for successful verification.

fARPrecedence - If both criteria are provided, this parameter indicates which takes precedence.

sampleBIR - The BIR to be identified.

referenceBIR - The BIR to be verified against.

adaptedBIR - Reference of the adapted BIR.

result - Reference of the result.

fARAchieved - Reference to FAR Value indicating the closeness of the match.

fRRAchieved - Reference to FRR Value indicating the closeness of the match.

payload - Reference to optional payload.

Throws:

jpos.JposException - If an error occurs.

checkFARorFRRLimit

public void checkFARorFRRLimit(int limit,
 String name)
                        throws jpos.JposException

Description copied from interface: BiometricsInterface

Checks whether a FAR or FRR limit is valid. Negative FAR or FRR limits are invalid. Depending on the interpretation of FAR and FRR values as specified in the UPOS specification (percentage values) or as used in the BioAPI reference implementation (probability in units of 1/Integer.MAX_VALUE), it can be necessary to override this method within the implementation class. The default implementation is interpretation as specified in UPOS specification, throwing a JposException if limit is less than zero or greater than 100 (percentage values).

Specified by:

checkFARorFRRLimit in interface BiometricsInterface

Parameters:

limit - FAR or FRR limit to be checked.

name - limit name (maxFARRequested or maxFRRRequested).

Throws:

jpos.JposException - If limit is out of range, at least if negative.

checkBIRPurpose

public boolean checkBIRPurpose(byte[] bir,
 Boolean verify)

Description copied from interface: BiometricsInterface

Checks if a BIR is valid for a given purpose.

Specified by:

checkBIRPurpose in interface BiometricsInterface

Parameters:

bir - The BIR to be checked.

verify - Must be set to true to check for validity for verification, to false for validity check for identification or to null for validity check for use as reference BIR.

Returns:

true if the BIR is valid for the specified purpose, false otherwise.

isDataEmpty

public boolean isDataEmpty(byte[] data,
 boolean isBIR)

Description copied from interface: BiometricsInterface

Checks whether a given BIR or payload is empty. In the default implementation, empty means the given data is null or all bytes of data are zero. In addition, if isBIR is true, data is also empty if data.length is not greater than the BIR header length (16) or the Length field of the BIR is equal to the header length.

Specified by:

isDataEmpty in interface BiometricsInterface

Parameters:

data - The BIR or payload to be checked.

isBIR - True in case of a BIR, false for payload value.

Returns:

true if data is empty, false otherwise.