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// Copyright (c) 1999-2004 Brian Wellington (bwelling@xbill.org)
package org.xbill.DNS;
import java.io.*;
import java.security.PublicKey;
/**
* Key - contains a cryptographic public key for use by DNS.
* The data can be converted to objects implementing
* java.security.interfaces.PublicKey
* @see DNSSEC
*
* @author Brian Wellington
*/
public class DNSKEYRecord extends KEYBase {
public static class Protocol {
private Protocol() {}
/** Key will be used for DNSSEC */
public static final int DNSSEC = 3;
}
public static class Flags {
private Flags() {}
/** Key is a zone key */
public static final int ZONE_KEY = 0x100;
/** Key is a secure entry point key */
public static final int SEP_KEY = 0x1;
/** Key has been revoked */
public static final int REVOKE = 0x80;
}
private static final long serialVersionUID = -8679800040426675002L;
DNSKEYRecord() {}
Record
getObject() {
return new DNSKEYRecord();
}
/**
* Creates a DNSKEY Record from the given data
* @param flags Flags describing the key's properties
* @param proto The protocol that the key was created for
* @param alg The key's algorithm
* @param key Binary representation of the key
*/
public
DNSKEYRecord(Name name, int dclass, long ttl, int flags, int proto, int alg,
byte [] key)
{
super(name, Type.DNSKEY, dclass, ttl, flags, proto, alg, key);
}
/**
* Creates a DNSKEY Record from the given data
* @param flags Flags describing the key's properties
* @param proto The protocol that the key was created for
* @param alg The key's algorithm
* @param key The key as a PublicKey
* @throws DNSSEC.DNSSECException The PublicKey could not be converted into DNS
* format.
*/
public
DNSKEYRecord(Name name, int dclass, long ttl, int flags, int proto, int alg,
PublicKey key) throws DNSSEC.DNSSECException
{
super(name, Type.DNSKEY, dclass, ttl, flags, proto, alg,
DNSSEC.fromPublicKey(key, alg));
publicKey = key;
}
void
rdataFromString(Tokenizer st, Name origin) throws IOException {
flags = st.getUInt16();
proto = st.getUInt8();
String algString = st.getString();
alg = DNSSEC.Algorithm.value(algString);
if (alg < 0)
throw st.exception("Invalid algorithm: " + algString);
key = st.getBase64();
}
}
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