org.apache.kerby.kerberos.kerb.crypto.enc

Class Rc4HmacEnc

java.lang.Object

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

org.apache.kerby.kerberos.kerb.crypto.enc.AbstractEncTypeHandler

org.apache.kerby.kerberos.kerb.crypto.enc.Rc4HmacEnc

All Implemented Interfaces:

CryptoTypeHandler, EncTypeHandler

Direct Known Subclasses:

Rc4HmacExpEnc

public class Rc4HmacEnc
extends AbstractEncTypeHandler

Constructor Summary

Constructors

Constructor and Description
Rc4HmacEnc()
Rc4HmacEnc(boolean exportable)

Method Summary

Methods

Modifier and Type	Method and Description
CheckSumType	checksumType()
int	confounderSize()
protected byte[]	decryptWith(byte[] workBuffer, int[] workLens, byte[] key, byte[] iv, int usage)
protected void	encryptWith(byte[] workBuffer, int[] workLens, byte[] key, byte[] iv, int usage)
EncryptionType	eType()
protected byte[]	makeEncKey(byte[] usageKey, byte[] checksum)
protected byte[]	makeUsageKey(byte[] key, int usage)
protected int	paddingLength(int inputLen)
int	paddingSize()
byte[]	prf(byte[] key, byte[] seed)

Methods inherited from class org.apache.kerby.kerberos.kerb.crypto.enc.AbstractEncTypeHandler

checksumSize, decrypt, decrypt, displayName, encrypt, encrypt, keyInputSize, keyMaker, keyMaker, keySize, name, prfSize, random2Key, str2key

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.CryptoTypeHandler

encProvider, hashProvider

Constructor Detail

Rc4HmacEnc

public Rc4HmacEnc()

Rc4HmacEnc

public Rc4HmacEnc(boolean exportable)

Method Detail

eType

public EncryptionType eType()

prf

public byte[] prf(byte[] key,
         byte[] seed)
           throws KrbException

Throws:

KrbException

paddingLength

protected int paddingLength(int inputLen)

Specified by:

paddingLength in class AbstractEncTypeHandler

confounderSize

public int confounderSize()

Specified by:

confounderSize in interface EncTypeHandler

Overrides:

confounderSize in class AbstractEncTypeHandler

paddingSize

public int paddingSize()

Specified by:

paddingSize in interface EncTypeHandler

Overrides:

paddingSize in class AbstractEncTypeHandler

checksumType

public CheckSumType checksumType()

encryptWith

protected void encryptWith(byte[] workBuffer,
               int[] workLens,
               byte[] key,
               byte[] iv,
               int usage)
                    throws KrbException

Overrides:

encryptWith in class AbstractEncTypeHandler

Throws:

KrbException

makeUsageKey

protected byte[] makeUsageKey(byte[] key,
                  int usage)
                       throws KrbException

Throws:

KrbException

makeEncKey

protected byte[] makeEncKey(byte[] usageKey,
                byte[] checksum)
                     throws KrbException

Throws:

KrbException

decryptWith

protected byte[] decryptWith(byte[] workBuffer,
                 int[] workLens,
                 byte[] key,
                 byte[] iv,
                 int usage)
                      throws KrbException

Overrides:

decryptWith in class AbstractEncTypeHandler

Throws:

KrbException