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package sun.security.x509;

import java.io.IOException;
import java.io.OutputStream;
import java.math.BigInteger;
import java.util.Enumeration;

import sun.security.util.*;


Represents the Delta CRL Indicator Extension.


The extension identifies a CRL as being a delta CRL.
Delta CRLs contain updates to revocation information previously distributed,
rather than all the information that would appear in a complete CRL.
The extension contains a CRL number that identifies the CRL, complete for a
given scope, that was used as the starting point in the generation of
this delta CRL.


The extension is defined in Section 5.2.4 of
Internet X.509 PKI Certific
ate and Certificate Revocation List (CRL) Profile.


Its ASN.1 definition is as follows:

    id-ce-deltaCRLIndicator OBJECT IDENTIFIER ::= { id-ce 27 }
    BaseCRLNumber ::= CRLNumber
    CRLNumber ::= INTEGER (0..MAX)



Since:1.6
/**
 * Represents the Delta CRL Indicator Extension.
 *
 * <p>
 * The extension identifies a CRL as being a delta CRL.
 * Delta CRLs contain updates to revocation information previously distributed,
 * rather than all the information that would appear in a complete CRL.
 * The extension contains a CRL number that identifies the CRL, complete for a
 * given scope, that was used as the starting point in the generation of
 * this delta CRL.
 *
 * <p>
 * The extension is defined in Section 5.2.4 of
 * <a href="http://tools.ietf.org/html/rfc5280">Internet X.509 PKI Certific
ate and Certificate Revocation List (CRL) Profile</a>.
 *
 * <p>
 * Its ASN.1 definition is as follows:
 * <pre>
 *     id-ce-deltaCRLIndicator OBJECT IDENTIFIER ::= { id-ce 27 }
 *
 *     BaseCRLNumber ::= CRLNumber
 *     CRLNumber ::= INTEGER (0..MAX)
 * </pre>
 *
 * @since 1.6
 */
public class DeltaCRLIndicatorExtension extends CRLNumberExtension {

    
Attribute name.

/**
     * Attribute name.
     */
    public static final String NAME = "DeltaCRLIndicator";

    private static final String LABEL = "Base CRL Number";

    
Creates a delta CRL indicator extension with the integer value .
The criticality is set to true.

Params:
  • crlNum – the value to be set for the extension.
/**
     * Creates a delta CRL indicator extension with the integer value .
     * The criticality is set to true.
     *
     * @param crlNum the value to be set for the extension.
     */
    public DeltaCRLIndicatorExtension(int crlNum) throws IOException {
        super(PKIXExtensions.DeltaCRLIndicator_Id, true,
            BigInteger.valueOf(crlNum), NAME, LABEL);
    }

    
Creates a delta CRL indictor extension with the BigInteger value .
The criticality is set to true.

Params:
  • crlNum – the value to be set for the extension.
/**
     * Creates a delta CRL indictor extension with the BigInteger value .
     * The criticality is set to true.
     *
     * @param crlNum the value to be set for the extension.
     */
    public DeltaCRLIndicatorExtension(BigInteger crlNum) throws IOException {
        super(PKIXExtensions.DeltaCRLIndicator_Id, true, crlNum, NAME, LABEL);
    }

    
Creates the extension from the passed DER encoded value of the same.

Params:
  • critical – true if the extension is to be treated as critical.
  • value – an array of DER encoded bytes of the actual value.
Throws:
/**
     * Creates the extension from the passed DER encoded value of the same.
     *
     * @param critical true if the extension is to be treated as critical.
     * @param value an array of DER encoded bytes of the actual value.
     * @exception ClassCastException if value is not an array of bytes
     * @exception IOException on decoding error.
     */
    public DeltaCRLIndicatorExtension(Boolean critical, Object value)
    throws IOException {
        super(PKIXExtensions.DeltaCRLIndicator_Id, critical.booleanValue(),
            value, NAME, LABEL);
    }

    
Writes the extension to the DerOutputStream.

Params:
  • out – the DerOutputStream to write the extension to.
Throws:
/**
     * Writes the extension to the DerOutputStream.
     *
     * @param out the DerOutputStream to write the extension to.
     * @exception IOException on encoding errors.
     */
    public void encode(OutputStream out) throws IOException {
       DerOutputStream  tmp = new DerOutputStream();
        super.encode(out, PKIXExtensions.DeltaCRLIndicator_Id, true);
    }
}