org.xipki.pkcs11.wrapper

Class MechanismInfo

java.lang.Object

org.xipki.pkcs11.wrapper.MechanismInfo

public class MechanismInfo
extends Object

Objects of this class provide information about a certain mechanism that a token implements.

Author:

Karl Scheibelhofer (SIC), Lijun Liao (xipki)

Constructor Summary

Constructors

Constructor and Description
MechanismInfo(CK_MECHANISM_INFO ckMechanismInfo) Constructor taking a CK_MECHANISM_INFO object as data source.
MechanismInfo(long minKeySize, long maxKeySize, long flags)

Method Summary

Modifier and Type	Method and Description
void	clearFlagBit(long flagMask) Clear the given feature flag.
long	getFlags()
long	getMaxKeySize() Get the maximum key length supported by this mechanism.
long	getMinKeySize() Get the minimum key length supported by this mechanism.
boolean	hasFlagBit(long flagMask)
void	setFlagBit(long flagMask) Set the given feature flag.
boolean	supports(MechanismInfo requiredFeatures) Check, if this mechanism info has those flags set to true, which are set in the given mechanism info.
String	toString() Returns the string representation of this object.
String	toString(String indent)

Methods inherited from class java.lang.Object

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

Constructor Detail

MechanismInfo

public MechanismInfo(CK_MECHANISM_INFO ckMechanismInfo)

Constructor taking a CK_MECHANISM_INFO object as data source.

Parameters:

ckMechanismInfo - The CK_MECHANISM_INFO object that provides the data.

MechanismInfo

public MechanismInfo(long minKeySize,
                     long maxKeySize,
                     long flags)

Parameters:

minKeySize - The minimum key length supported by this mechanism.

maxKeySize - The maximum key length supported by this mechanism.

flags - The flag bit(s).

Method Detail

getMinKeySize

public long getMinKeySize()

Get the minimum key length supported by this mechanism.

Returns:

The minimum key length supported by this mechanism.

getMaxKeySize

public long getMaxKeySize()

Get the maximum key length supported by this mechanism.

Returns:

The maximum key length supported by this mechanism.

getFlags

public long getFlags()

hasFlagBit

public boolean hasFlagBit(long flagMask)

setFlagBit

public void setFlagBit(long flagMask)

Set the given feature flag.

Parameters:

flagMask - The mask of the flag bit(s).

clearFlagBit

public void clearFlagBit(long flagMask)

Clear the given feature flag.

Parameters:

flagMask - The mask of the flag bit(s).

supports

public boolean supports(MechanismInfo requiredFeatures)

Check, if this mechanism info has those flags set to true, which are set in the given mechanism info. This may be used as a simple check, if some operations are supported. This also checks the key length range, if they are specified in the given mechanism object; i.e. if they are not zero.

Parameters:

requiredFeatures - The required features.

Returns:

True, if the required features are supported.

toString

public String toString()

Returns the string representation of this object.

Overrides:

toString in class Object

Returns:

the string representation of this object

toString

public String toString(String indent)