Package org.apache.kerby.kerberos.kerb.crypto.cksum

Class KcCheckSum

java.lang.Object

org.apache.kerby.kerberos.kerb.crypto.AbstractCryptoTypeHandler

org.apache.kerby.kerberos.kerb.crypto.cksum.AbstractCheckSumTypeHandler

org.apache.kerby.kerberos.kerb.crypto.cksum.AbstractKeyedCheckSumTypeHandler

org.apache.kerby.kerberos.kerb.crypto.cksum.KcCheckSum

All Implemented Interfaces:

CheckSumTypeHandler, CryptoTypeHandler

Direct Known Subclasses:

CmacKcCheckSum, HmacKcCheckSum

public abstract class KcCheckSum
extends AbstractKeyedCheckSumTypeHandler

Constructor Summary

Constructors

Constructor	Description
KcCheckSum(EncryptProvider encProvider, HashProvider hashProvider, int computeSize, int outputSize)

Method Summary

Modifier and Type	Method	Description
protected byte[]	doChecksumWithKey(byte[] data, int start, int len, byte[] key, int usage)
protected abstract byte[]	mac(byte[] kc, byte[] data, int start, int len)

Methods inherited from class org.apache.kerby.kerberos.kerb.crypto.cksum.AbstractKeyedCheckSumTypeHandler

checksumWithKey, checksumWithKey, keyMaker, keyMaker, verifyWithKey

Methods inherited from class org.apache.kerby.kerberos.kerb.crypto.cksum.AbstractCheckSumTypeHandler

checksum, checksum, cksumSize, computeSize, confounderSize, displayName, isSafe, keySize, name, outputSize, verify, verify

Methods inherited from class org.apache.kerby.kerberos.kerb.crypto.AbstractCryptoTypeHandler

checksumEqual, checksumEqual, encProvider, hashProvider

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.kerby.kerberos.kerb.crypto.CheckSumTypeHandler

cksumType

Methods inherited from interface org.apache.kerby.kerberos.kerb.crypto.CryptoTypeHandler

encProvider, hashProvider

Constructor Details

KcCheckSum

public KcCheckSum(EncryptProvider encProvider,
 HashProvider hashProvider,
 int computeSize,
 int outputSize)

Method Details

doChecksumWithKey

protected byte[] doChecksumWithKey(byte[] data,
 int start,
 int len,
 byte[] key,
 int usage)
                            throws org.apache.kerby.kerberos.kerb.KrbException

Overrides:

doChecksumWithKey in class AbstractKeyedCheckSumTypeHandler

Throws:

org.apache.kerby.kerberos.kerb.KrbException

mac

protected abstract byte[] mac(byte[] kc,
 byte[] data,
 int start,
 int len)
                       throws org.apache.kerby.kerberos.kerb.KrbException

Throws:

org.apache.kerby.kerberos.kerb.KrbException