sun.security.mule.krb5.internal.crypto
Class Des

java.lang.Object
  sun.security.mule.krb5.internal.crypto.Des

public final class Des
extends Object

Constructor Summary

Des()

Method Summary

static boolean	bad_key(byte[] key)
static boolean	bad_key(long key)
static void	cbc_encrypt(byte[] input, byte[] output, byte[] key, byte[] ivec, boolean encrypt) Creates a DES cipher in Electronic Codebook mode, with no padding.
static long	char_to_key(char[] passwdChars) Generates DES key from the password.
static byte[]	des_cksum(byte[] ivec, byte[] msg, byte[] key) Encrypts the message blocks using DES CBC and output the final block of 8-byte ciphertext.
static byte[]	long2octet(long input)
static void	long2octet(long input, byte[] output)
static void	long2octet(long input, byte[] output, int offset)
static long	octet2long(byte[] input)
static long	octet2long(byte[] input, int offset)
static byte[]	set_parity(byte[] key)
static long	set_parity(long key)
static byte[]	string_to_key_bytes(char[] passwdChars)

Methods inherited from class java.lang.Object

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

Constructor Detail

Des

public Des()

Method Detail

set_parity

public static final byte[] set_parity(byte[] key)

set_parity

public static final long set_parity(long key)

bad_key

public static final boolean bad_key(long key)

bad_key

public static final boolean bad_key(byte[] key)

octet2long

public static long octet2long(byte[] input)

octet2long

public static long octet2long(byte[] input,
                              int offset)

long2octet

public static byte[] long2octet(long input)

long2octet

public static void long2octet(long input,
                              byte[] output)

long2octet

public static void long2octet(long input,
                              byte[] output,
                              int offset)

cbc_encrypt

public static void cbc_encrypt(byte[] input,
                               byte[] output,
                               byte[] key,
                               byte[] ivec,
                               boolean encrypt)
                        throws KrbCryptoException

Creates a DES cipher in Electronic Codebook mode, with no padding.

Parameters:

input - plain text.

output - the buffer for the result.

key - DES the key to encrypt the text.

ivec - initialization vector.

Throws:

KrbCryptoException

char_to_key

public static long char_to_key(char[] passwdChars)
                        throws KrbCryptoException

Generates DES key from the password.

Parameters:

password - a char[] used to create the key.

Returns:

DES key.

Throws:

KrbCryptoException

des_cksum

public static byte[] des_cksum(byte[] ivec,
                               byte[] msg,
                               byte[] key)
                        throws KrbCryptoException

Encrypts the message blocks using DES CBC and output the final block of 8-byte ciphertext.

Parameters:

ivec - Initialization vector.

msg - Input message as an byte array.

key - DES key to encrypt the message.

Returns:

the last block of ciphertext.

Throws:

KrbCryptoException

string_to_key_bytes

public static byte[] string_to_key_bytes(char[] passwdChars)
                                  throws KrbCryptoException

Throws:

KrbCryptoException