CRL

AI-generated Key Takeaways

• The CRL class is an abstract class representing Certificate Revocation Lists, providing a common interface for different CRL formats.

• It offers functionality to check if a certificate is revoked using the isRevoked() method.

• CRL can be extended to define specialized CRL types by subclassing.

• The getType() method retrieves the type of the CRL, and toString() provides a string representation.

public abstract class CRL extends Object

Known Direct Subclasses X509CRL X509CRL Abstract class for an X.509 Certificate Revocation List (CRL).

This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses. For example, all CRLs share the functionality of listing revoked certificates, and can be queried on whether or not they list a given certificate.

Specialized CRL types can be defined by subclassing off of this abstract class.

See Also

• X509CRL
• CertificateFactory

Protected Constructor Summary

CRL(String type) Creates a CRL of the specified type.

Public Method Summary

final String	getType() Returns the type of this CRL.
abstract boolean	isRevoked(Certificate cert) Checks whether the given certificate is on this CRL.
abstract String	toString() Returns a string representation of this CRL.

Inherited Method Summary

From class java.lang.Object

Object	clone() Creates and returns a copy of this Object.
boolean	equals(Object obj) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of Class that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long timeout, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait(long timeout) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

Protected Constructors

protected CRL (String type)

Creates a CRL of the specified type.

Parameters

type	the standard name of the CRL type. See Appendix A in the Java Cryptography Architecture API Specification & Reference for information about standard CRL types.

Public Methods

public final String getType ()

Returns the type of this CRL.

Returns

• the type of this CRL.

public abstract boolean isRevoked (Certificate cert)

Checks whether the given certificate is on this CRL.

Parameters

cert	the certificate to check for.

Returns

• true if the given certificate is on this CRL, false otherwise.

public abstract String toString ()

Returns a string representation of this CRL.

Returns

• a string representation of this CRL.