org.xbill.DNS

Class NSEC3PARAMRecord

java.lang.Object

org.xbill.DNS.Record

org.xbill.DNS.NSEC3PARAMRecord

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable

public class NSEC3PARAMRecord
extends Record

Next SECure name 3 Parameters - this record contains the parameters (hash algorithm, salt, iterations) used for a valid, complete NSEC3 chain present in a zone. Zones signed using NSEC3 must include this record at the zone apex to inform authoritative servers that NSEC3 is being used with the given parameters.

Author:

Brian Wellington, David Blacka

See Also:

Serialized Form

Field Summary

Fields inherited from class org.xbill.DNS.Record

dclass, name, ttl, type

Constructor Summary

Constructors

Constructor and Description
NSEC3PARAMRecord(Name name, int dclass, long ttl, int hashAlg, int flags, int iterations, byte[] salt) Creates an NSEC3PARAM record from the given data.

Method Summary

Methods

Modifier and Type	Method and Description
int	getFlags() Returns the flags
int	getHashAlgorithm() Returns the hash algorithm
int	getIterations() Returns the number of iterations
byte[]	getSalt() Returns the salt
byte[]	hashName(Name name) Hashes a name with the parameters of this NSEC3PARAM record.

Methods inherited from class org.xbill.DNS.Record

byteArrayFromString, byteArrayToString, compareTo, equals, fromString, fromString, fromWire, getAdditionalName, getDClass, getName, getRRsetType, getTTL, getType, hashCode, newRecord, newRecord, newRecord, newRecord, rdataToString, rdataToWireCanonical, sameRRset, toString, toWire, toWireCanonical, unknownToString, withName

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NSEC3PARAMRecord

public NSEC3PARAMRecord(Name name,
                int dclass,
                long ttl,
                int hashAlg,
                int flags,
                int iterations,
                byte[] salt)

Creates an NSEC3PARAM record from the given data.

Parameters:

name - The ownername of the NSEC3PARAM record (generally the zone name).

dclass - The class.

ttl - The TTL.

hashAlg - The hash algorithm.

flags - The value of the flags field.

iterations - The number of hash iterations.

salt - The salt to use (may be null).

Method Detail

getHashAlgorithm

public int getHashAlgorithm()

Returns the hash algorithm

getFlags

public int getFlags()

Returns the flags

getIterations

public int getIterations()

Returns the number of iterations

getSalt

public byte[] getSalt()

Returns the salt

hashName

public byte[] hashName(Name name)
                throws java.security.NoSuchAlgorithmException

Hashes a name with the parameters of this NSEC3PARAM record.

Parameters:

name - The name to hash

Returns:

The hashed version of the name

Throws:

java.security.NoSuchAlgorithmException - The hash algorithm is unknown.