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

Method Summary

Modifier and Type	Method and 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 Detail

KcCheckSum

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

Method Detail

doChecksumWithKey

protected byte[] doChecksumWithKey(byte[] data,
                                   int start,
                                   int len,
                                   byte[] key,
                                   int usage)
                            throws KrbException

Overrides:

doChecksumWithKey in class AbstractKeyedCheckSumTypeHandler

Throws:

KrbException

mac

protected abstract byte[] mac(byte[] kc,
                              byte[] data,
                              int start,
                              int len)
                       throws KrbException

Throws:

KrbException