jcrypt
Class jcrypt

java.lang.Object
  jcrypt.jcrypt

public class jcrypt
extends java.lang.Object

Java-based implementation of the unix crypt command.

Author:

John Dumas

Field Summary

private static int[]	con_salt
private static int[]	cov_2char
private static boolean	debug
private static int	ITERATIONS
private static java.util.Random	randgen
private static java.lang.String	SALTCHARS
private static boolean[]	shifts2
private static int[][]	skb
private static int[][]	SPtrans

Constructor Summary

private

jcrypt()

Method Summary

private static int[]	body(int[] schedule, int Eswap0, int Eswap1)
private static int	byteToUnsigned(byte b)
static java.lang.String	crypt(java.lang.String original)
static java.lang.String	crypt(java.lang.String salt, java.lang.String original)
private static int	D_ENCRYPT(int L, int R, int S, int E0, int E1, int[] s)
private static int[]	des_set_key(byte[] key)
private static int	fourBytesToInt(byte[] b, int offset)
private static int	HPERM_OP(int a, int n, int m)
private static void	intToFourBytes(int iValue, byte[] b, int offset)
static void	main(java.lang.String[] args)
private static void	PERM_OP(int a, int b, int n, int m, int[] results)

Methods inherited from class java.lang.Object

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

Field Detail

con_salt

private static final int[] con_salt

cov_2char

private static final int[] cov_2char

debug

private static final boolean debug

See Also:

Constant Field Values

ITERATIONS

private static final int ITERATIONS

See Also:

Constant Field Values

randgen

private static final java.util.Random randgen

SALTCHARS

private static final java.lang.String SALTCHARS

See Also:

Constant Field Values

shifts2

private static final boolean[] shifts2

skb

private static final int[][] skb

SPtrans

private static final int[][] SPtrans

Constructor Detail

jcrypt

private jcrypt()

Method Detail

body

private static final int[] body(int[] schedule,
                                int Eswap0,
                                int Eswap1)

byteToUnsigned

private static final int byteToUnsigned(byte b)

crypt

public static final java.lang.String crypt(java.lang.String original)

crypt

public static final java.lang.String crypt(java.lang.String salt,
                                           java.lang.String original)

D_ENCRYPT

private static final int D_ENCRYPT(int L,
                                   int R,
                                   int S,
                                   int E0,
                                   int E1,
                                   int[] s)

des_set_key

private static int[] des_set_key(byte[] key)

fourBytesToInt

private static int fourBytesToInt(byte[] b,
                                  int offset)

HPERM_OP

private static final int HPERM_OP(int a,
                                  int n,
                                  int m)

intToFourBytes

private static final void intToFourBytes(int iValue,
                                         byte[] b,
                                         int offset)

main

public static void main(java.lang.String[] args)

PERM_OP

private static final void PERM_OP(int a,
                                  int b,
                                  int n,
                                  int m,
                                  int[] results)