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/*
* *
* * @Project HM OA
* * @Name DesUtil
* * @Author 张剑峰
* * @Date 18-4-15 下午11:02
* * @Version v1.0.0
* * @Copyright @ 2017 云南道睿科技有限公司 All rights reserved.
*
*/
package com.ynxbd.wx.utils;
import java.io.PrintWriter;
/**
* @author Administrator
* @version v1.0.0
* @date Oct 10, 2009 11:20:32 AM
*/
public class DesHelper {
static final String NAME = "DES";
static final boolean IN = true, OUT = false;
static final int debuglevel = 0;
static final PrintWriter err = null;
private static final int ROUNDS = 16; // number of rounds
private static final int BLOCK_SIZE = 8; // DES block size in bytes
/**
* Table for PC2 permutations in key schedule computation.
*/
private static final int[] SKB = new int[8 * 64]; // blank final
/**
* Table for S-boxes and permutations.
*/
private static final int[] SP_TRANS = new int[8 * 64]; // blank final
private static final char[] HEX_DIGITS = {'0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
static {
String cd = "D]PKESYM`UBJ\\@RXA`I[T`HC`LZQ"
+ "\\PB]TL`[C`JQ@Y`HSXDUIZRAM`EK";
int j, s, bit;
int count = 0;
int offset = 0;
for (int i = 0; i < cd.length(); i++) {
s = cd.charAt(i) - '@';
if (s != 32) {
bit = 1 << count++;
for (j = 0; j < 64; j++)
if ((bit & j) != 0)
SKB[offset + j] |= 1 << s;
if (count == 6) {
offset += 64;
count = 0;
}
}
}
//
// build the SP_TRANS table
//
// The theory is that each bit position in each int of SP_TRANS is
// set in exactly 32 entries. We keep track of set bits.
//
String spt = // [526 chars, 3156 bits]
"g3H821:80:H03BA0@N1290BAA88::3112aIH8:8282@0@AH0:1W3A8P810@22;22"
+ "A18^@9H9@129:<8@822`?:@0@8PH2H81A19:G1@03403A0B1;:0@1g192:@919AA"
+ "0A109:W21492H@0051919811:215011139883942N8::3112A2:31981jM118::A"
+ "101@I88:1aN0<@030128:X;811`920:;H0310D1033@W980:8A4@804A3803o1A2"
+ "021B2:@1AH023GA:8:@81@@12092B:098042P@:0:A0HA9>1;289:@1804:40Ph="
+ "1:H0I0HP0408024bC9P8@I808A;@0@0PnH0::8:19J@818:@iF0398:8A9H0<13@"
+ "001@11<8;@82B01P0a2989B:0AY0912889bD0A1@B1A0A0AB033O91182440A9P8"
+ "@I80n@1I03@1J828212A`A8:12B1@19A9@9@8^B:0@H00<82AB030bB840821Q:8"
+ "310A302102::A1::20A1;8";
offset = 0;
int k, c, param;
for (int i = 0; i < 32; i++) { // each bit position
k = -1; // pretend the -1th bit was set
bit = 1 << i;
for (j = 0; j < 32; j++) { // each set bit
// Each character consists of two three-bit values:
c = spt.charAt(offset >> 1) - '0' >> (offset & 1) * 3 & 7;
offset++;
if (c < 5) {
// value 0-4 indicate a set bit 1-5 positions from
// previous set bit
k += c + 1;
SP_TRANS[k] |= bit;
continue;
}
// other values take at least an additional parameter:
// the next value in the sequence.
param = spt.charAt(offset >> 1) - '0' >> (offset & 1) * 3 & 7;
offset++;
if (c == 5) {
// bit set param+6 positions from previous set bit
k += param + 6;
SP_TRANS[k] |= bit;
} else if (c == 6) {
// bit set param*64 + 1 positions from previous set bit
k += (param << 6) + 1;
SP_TRANS[k] |= bit;
} else {
// should skip param*64 positions, then process next value
// which will be in the range 0-4.
k += param << 6;
j--;
}
}
}
}
// utility static methods (from cryptix.util.core ArrayUtil and Hex classes)
// ...........................................................................
/**
* Compares two byte arrays for equality.
*
* @return true if the arrays have identical contents
*/
protected static boolean areEqual(byte[] a, byte[] b) {
int aLength = a.length;
if (aLength != b.length)
return false;
for (int i = 0; i < aLength; i++)
if (a[i] != b[i])
return false;
return true;
}
/**
* Decrypt exactly one block of ciphertext.
*
* @param in The ciphertext.
* @param inOffset Index of in from which to start considering data.
* @param sessionKey The session key to use for decryption.
* @return The plaintext generated from a ciphertext using the session key.
*/
protected static char[] blockDecrypt1(char[] in, int inOffset,
Object sessionKey) {
int[] L_R = {
(in[inOffset++] & 0xFF) | (in[inOffset++] & 0xFF) << 8
| (in[inOffset++] & 0xFF) << 16
| (in[inOffset++] & 0xFF) << 24,
(in[inOffset++] & 0xFF) | (in[inOffset++] & 0xFF) << 8
| (in[inOffset++] & 0xFF) << 16
| (in[inOffset] & 0xFF) << 24};
IP(L_R);
decrypt(L_R, sessionKey);
FP(L_R);
int L = L_R[0];
int R = L_R[1];
return new char[]{(char) L, (char) (L >> 8),
(char) (L >> 16), (char) (L >> 24), (char) R, (char) (R >> 8),
(char) (R >> 16), (char) (R >> 24)};
}
protected static byte[] blockDecrypt(byte[] in, int inOffset, Object sessionKey) {
int[] L_R = {
(in[inOffset++] & 0xFF) | (in[inOffset++] & 0xFF) << 8
| (in[inOffset++] & 0xFF) << 16
| (in[inOffset++] & 0xFF) << 24,
(in[inOffset++] & 0xFF) | (in[inOffset++] & 0xFF) << 8
| (in[inOffset++] & 0xFF) << 16
| (in[inOffset] & 0xFF) << 24};
IP(L_R);
decrypt(L_R, sessionKey);
FP(L_R);
int L = L_R[0];
int R = L_R[1];
return new byte[]{(byte) L, (byte) (L >> 8),
(byte) (L >> 16), (byte) (L >> 24), (byte) R, (byte) (R >> 8),
(byte) (R >> 16), (byte) (R >> 24)};
}
/**
* Encrypt exactly one block of plaintext.
*
* @param in The plaintext.
* @param inOffset Index of in from which to start considering data.
* @param sessionKey The session key to use for encryption.
* @return The ciphertext generated from a plaintext using the session key.
*/
protected static byte[] blockEncrypt(byte[] in, int inOffset, Object sessionKey) {
int[] L_R = {
(in[inOffset++] & 0xFF) | (in[inOffset++] & 0xFF) << 8
| (in[inOffset++] & 0xFF) << 16
| (in[inOffset++] & 0xFF) << 24,
(in[inOffset++] & 0xFF) | (in[inOffset++] & 0xFF) << 8
| (in[inOffset++] & 0xFF) << 16
| (in[inOffset] & 0xFF) << 24};
IP(L_R);
encrypt(L_R, sessionKey);
FP(L_R);
int L = L_R[0];
int R = L_R[1];
return new byte[]{(byte) L, (byte) (L >> 8),
(byte) (L >> 16), (byte) (L >> 24), (byte) R, (byte) (R >> 8),
(byte) (R >> 16), (byte) (R >> 24)};
}
/**
* Implements the Unix crypt(3) algorithm.
* <p>
*
* @param L0 Left 32 bits of a DES block.
* @param R0 Right 32 bits of a DES block.
* @param sessionKey The session key to use for decryption.
* @return The encrypted DES block.
*/
protected static int[] crypt3(int L0, int R0, Object sessionKey) {
int[] sKey = (int[]) sessionKey;
int L = 0;
int R = 0;
int t, u, v;
int n = sKey.length;
for (int i = 0; i < 25; i++) {
for (int j = 0; j < n; ) {
v = R ^ (R >>> 16);
u = v & L0;
v &= R0;
u ^= (u << 16) ^ R ^ sKey[j++];
t = v ^ (v << 16) ^ R ^ sKey[j++];
t = t >>> 4 | t << 28;
L ^= (SP_TRANS[0x040 | (t & 0x3F)]
| SP_TRANS[0x0C0 | ((t >>> 8) & 0x3F)]
| SP_TRANS[0x140 | ((t >>> 16) & 0x3F)]
| SP_TRANS[0x1C0 | ((t >>> 24) & 0x3F)]
| SP_TRANS[u & 0x3F]
| SP_TRANS[0x080 | ((u >>> 8) & 0x3F)]
| SP_TRANS[0x100 | ((u >>> 16) & 0x3F)] | SP_TRANS[0x180 | ((u >>> 24) & 0x3F)]);
v = L ^ (L >>> 16);
u = v & L0;
v &= R0;
u ^= (u << 16) ^ L ^ sKey[j++];
t = v ^ (v << 16) ^ L ^ sKey[j++];
t = t >>> 4 | t << 28;
R ^= (SP_TRANS[0x040 | (t & 0x3F)]
| SP_TRANS[0x0C0 | ((t >>> 8) & 0x3F)]
| SP_TRANS[0x140 | ((t >>> 16) & 0x3F)]
| SP_TRANS[0x1C0 | ((t >>> 24) & 0x3F)]
| SP_TRANS[u & 0x3F]
| SP_TRANS[0x080 | ((u >>> 8) & 0x3F)]
| SP_TRANS[0x100 | ((u >>> 16) & 0x3F)] | SP_TRANS[0x180 | ((u >>> 24) & 0x3F)]);
}
t = L;
L = R;
R = t;
}
int[] result = {R >>> 1 | R << 31, L >>> 1 | L << 31};
FP(result);
return result;
}
/**
* Decrypt exactly one block of ciphertext without applying IP nor FP.
*
* @param io The ciphertext (on input) and plaintext (on output) (as an
* array of 8-bit entities).
* @param sessionKey The session key to use for decryption.
*/
protected static void decrypt(byte[] io, Object sessionKey) {
int[] L_R = {
(io[0] & 0xFF) | (io[1] & 0xFF) << 8 | (io[2] & 0xFF) << 16
| (io[3] & 0xFF) << 24,
(io[4] & 0xFF) | (io[5] & 0xFF) << 8 | (io[6] & 0xFF) << 16
| (io[7] & 0xFF) << 24};
decrypt(L_R, sessionKey);
int L = L_R[0];
int R = L_R[1];
io[0] = (byte) L;
io[1] = (byte) (L >> 8);
io[2] = (byte) (L >> 16);
io[3] = (byte) (L >> 24);
io[4] = (byte) R;
io[5] = (byte) (R >> 8);
io[6] = (byte) (R >> 16);
io[7] = (byte) (R >> 24);
}
/**
* Decrypt in situ exactly one block of ciphertext without applying IP nor
* FP.
*
* @param io The ciphertext (on input) and plaintext (on output) (as an
* array of 32-bit entities).
* @param sessionKey The session key to use for decryption.
*/
protected static void decrypt(int[] io, Object sessionKey) {
int[] sKey = (int[]) sessionKey;
int L = io[0];
int R = io[1];
int u = R << 1 | R >>> 31;
R = L << 1 | L >>> 31;
L = u;
int t;
int n = sKey.length;
for (int i = n - 1; i > 0; ) {
t = R ^ sKey[i--];
u = R ^ sKey[i--];
t = t >>> 4 | t << 28;
L ^= (SP_TRANS[0x040 | (t & 0x3F)]
| SP_TRANS[0x0C0 | ((t >>> 8) & 0x3F)]
| SP_TRANS[0x140 | ((t >>> 16) & 0x3F)]
| SP_TRANS[0x1C0 | ((t >>> 24) & 0x3F)]
| SP_TRANS[u & 0x3F] | SP_TRANS[0x080 | ((u >>> 8) & 0x3F)]
| SP_TRANS[0x100 | ((u >>> 16) & 0x3F)] | SP_TRANS[0x180 | ((u >>> 24) & 0x3F)]);
t = L ^ sKey[i--];
u = L ^ sKey[i--];
t = t >>> 4 | t << 28;
R ^= (SP_TRANS[0x040 | (t & 0x3F)]
| SP_TRANS[0x0C0 | ((t >>> 8) & 0x3F)]
| SP_TRANS[0x140 | ((t >>> 16) & 0x3F)]
| SP_TRANS[0x1C0 | ((t >>> 24) & 0x3F)]
| SP_TRANS[u & 0x3F] | SP_TRANS[0x080 | ((u >>> 8) & 0x3F)]
| SP_TRANS[0x100 | ((u >>> 16) & 0x3F)] | SP_TRANS[0x180 | ((u >>> 24) & 0x3F)]);
}
io[0] = L >>> 1 | L << 31;
io[1] = R >>> 1 | R << 31;
}
/**
* <EFBFBD>˴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뷽<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD>(2001-07-04 14:29:13)
*/
public void doit() {
// boolean ok = false;
int BLOCK_SIZE = 8;
try {
byte[] kb = new byte[BLOCK_SIZE];
byte[] pt = new byte[BLOCK_SIZE];
int i;
for (i = 0; i < BLOCK_SIZE; i++)
kb[i] = (byte) i;
for (i = 0; i < BLOCK_SIZE; i++)
pt[i] = (byte) i;
Object key = makeKey(kb);
byte[] ct = blockEncrypt(pt, 0, key);
byte[] tmp = blockDecrypt(ct, 0, key);
String[][] kat = {// KAT for a reduced set
// KEY, PLAINTEXT, CIPHERTEXT
{"0101010101010101", "95f8a5e5dd31d900",
"8000000000000000"},
{"0101010101010101", "dd7f121ca5015619",
"4000000000000000"},
{"0101010101010101", "2e8653104f3834ea",
"2000000000000000"},
// outer's data
{"0123456789abcdef", "0123456789abcde7",
"c95744256a5ed31d"},
{"0123456710325476", "89abcdef98badcfe",
"f0148eff050b2716"},};
for (i = 0; i < kat.length; ) {
key = makeKey(fromString(kat[i][0]));
pt = fromString(kat[i][1]);
ct = fromString(kat[i][2]);
i++;
tmp = blockEncrypt(pt, 0, key);
tmp = blockDecrypt(ct, 0, key);
}
// i do it
key = makeKey(fromString(kat[0][0]));
String strSrc;
// byte[] bytSrc;
String strCpt;
byte[] bytCpt;
String strDes;
// byte[] bytDes;
strSrc = "a <EFBFBD>й<EFBFBD><EFBFBD>ش<EFBFBD><EFBFBD>ﲩ<EFBFBD>й<EFBFBD>";
strCpt = "";
strDes = "";
int intSrc = strSrc.getBytes().length;
int intTemp;
if ((intSrc % 8) == 0)
intTemp = 0;
else
intTemp = 1;
int intBlock = (intSrc / 8) + intTemp;
byte[] bytBlock = new byte[intBlock * 8];
bytBlock = strSrc.getBytes();
byte[] oBlock = new byte[8];
int intpt;
for (int iBlock = 0; iBlock < intBlock; iBlock++) {
if ((iBlock < (intBlock - 1)) || (intSrc % 8 == 0))
intpt = 8;
else
intpt = intSrc % 8;
if (intpt < 8) {
for (int ipt = 0; ipt < 8; ipt++)
oBlock[ipt] = fromString("00")[0];
}
System.arraycopy(bytBlock, iBlock * 8, oBlock, 0, intpt);
bytCpt = blockEncrypt(oBlock, 0, key);
strCpt = strCpt + toString(bytCpt);
}
intSrc = strCpt.length();
intBlock = (intSrc / 16);
bytBlock = new byte[intSrc / 2];
String[] strBlockc = new String[intBlock];
for (int iBlock = 0; iBlock < intBlock; iBlock++) {
strBlockc[iBlock] = strCpt.substring(iBlock * 16,
iBlock * 16 + 16);
ct = fromString(strBlockc[iBlock]);
tmp = blockDecrypt(ct, 0, key);
System.arraycopy(tmp, 0, bytBlock, iBlock * 8, 8);
}
strDes = new String(bytBlock);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Encrypt in situ exactly one block of plaintext without applying IP nor
* FP.
*
* @param io The plaintext (on input) and ciphertext (on output) (as an
* array of 8-bit entities).
* @param sessionKey The session key to use for encryption.
*/
protected static void encrypt(byte[] io, Object sessionKey) {
int[] L_R = {
(io[0] & 0xFF) | (io[1] & 0xFF) << 8 | (io[2] & 0xFF) << 16
| (io[3] & 0xFF) << 24,
(io[4] & 0xFF) | (io[5] & 0xFF) << 8 | (io[6] & 0xFF) << 16
| (io[7] & 0xFF) << 24};
encrypt(L_R, sessionKey);
int L = L_R[0];
int R = L_R[1];
io[0] = (byte) L;
io[1] = (byte) (L >> 8);
io[2] = (byte) (L >> 16);
io[3] = (byte) (L >> 24);
io[4] = (byte) R;
io[5] = (byte) (R >> 8);
io[6] = (byte) (R >> 16);
io[7] = (byte) (R >> 24);
}
/**
* Encrypt exactly one block of plaintext without applying IP nor FP.
*
* @param io The plaintext (on input) and ciphertext (on output) (as an
* array of 32-bit entities).
* @param sessionKey The session key to use for encryption.
*/
protected static void encrypt(int[] io, Object sessionKey) {
int[] sKey = (int[]) sessionKey;
int L = io[0];
int R = io[1];
int u = R << 1 | R >>> 31;
R = L << 1 | L >>> 31;
L = u;
int t;
int n = sKey.length;
for (int i = 0; i < n; ) {
u = R ^ sKey[i++];
t = R ^ sKey[i++];
t = t >>> 4 | t << 28;
L ^= (SP_TRANS[0x040 | (t & 0x3F)]
| SP_TRANS[0x0C0 | ((t >>> 8) & 0x3F)]
| SP_TRANS[0x140 | ((t >>> 16) & 0x3F)]
| SP_TRANS[0x1C0 | ((t >>> 24) & 0x3F)]
| SP_TRANS[u & 0x3F] | SP_TRANS[0x080 | ((u >>> 8) & 0x3F)]
| SP_TRANS[0x100 | ((u >>> 16) & 0x3F)] | SP_TRANS[0x180 | ((u >>> 24) & 0x3F)]);
u = L ^ sKey[i++];
t = L ^ sKey[i++];
t = t >>> 4 | t << 28;
R ^= (SP_TRANS[0x040 | (t & 0x3F)]
| SP_TRANS[0x0C0 | ((t >>> 8) & 0x3F)]
| SP_TRANS[0x140 | ((t >>> 16) & 0x3F)]
| SP_TRANS[0x1C0 | ((t >>> 24) & 0x3F)]
| SP_TRANS[u & 0x3F] | SP_TRANS[0x080 | ((u >>> 8) & 0x3F)]
| SP_TRANS[0x100 | ((u >>> 16) & 0x3F)] | SP_TRANS[0x180 | ((u >>> 24) & 0x3F)]);
}
io[0] = L >>> 1 | L << 31;
io[1] = R >>> 1 | R << 31;
}
// own methods
// ...........................................................................
/**
* @return the length in bytes of an input block for this cipher.
*/
protected static int engineBlockSize() {
return BLOCK_SIZE;
}
/**
* Apply in situ the DES FP trnasformation (IP <sup>-1 </sup>) to a DES
* block.
*
* @param io DES block as an array of 32-bit entities.
*/
protected static void FP(byte[] io) {
int[] L_R = {
(io[0] & 0xFF) | (io[1] & 0xFF) << 8 | (io[2] & 0xFF) << 16
| (io[3] & 0xFF) << 24,
(io[4] & 0xFF) | (io[5] & 0xFF) << 8 | (io[6] & 0xFF) << 16
| (io[7] & 0xFF) << 24};
FP(L_R);
int L = L_R[0];
int R = L_R[1];
io[0] = (byte) L;
io[1] = (byte) (L >> 8);
io[2] = (byte) (L >> 16);
io[3] = (byte) (L >> 24);
io[4] = (byte) R;
io[5] = (byte) (R >> 8);
io[6] = (byte) (R >> 16);
io[7] = (byte) (R >> 24);
}
/**
* Apply in situ the DES FP trnasformation (IP <sup>-1 </sup>) to a DES
* block.
*
* @param io DES block as an array of 32-bit entities.
*/
protected static void FP(int[] io) {
int L = io[0];
int R = io[1];
int t = (R >>> 1 ^ L) & 0x55555555;
L ^= t;
R ^= t << 1;
t = (L >>> 8 ^ R) & 0x00FF00FF;
R ^= t;
L ^= t << 8;
t = (R >>> 2 ^ L) & 0x33333333;
L ^= t;
R ^= t << 2;
t = (L >>> 16 ^ R) & 0x0000FFFF;
R ^= t;
L ^= t << 16;
t = (R >>> 4 ^ L) & 0x0F0F0F0F;
io[0] = L ^ t;
io[1] = R ^ (t << 4);
}
/**
* Returns a number from 0 to 15 corresponding to the hex digit <i>ch </i>.
*/
protected static int fromDigit(char ch) {
if (ch >= '0' && ch <= '9')
return ch - '0';
if (ch >= 'A' && ch <= 'F')
return ch - 'A' + 10;
if (ch >= 'a' && ch <= 'f')
return ch - 'a' + 10;
throw new IllegalArgumentException("Invalid hex digit '" + ch + "'");
}
/**
* Returns a byte array from a string of hexadecimal digits.
*/
protected static byte[] fromString(String hex) {
int len = hex.length();
byte[] buf = new byte[((len + 1) / 2)];
int i = 0, j = 0;
if ((len % 2) == 1)
buf[j++] = (byte) fromDigit(hex.charAt(i++));
while (i < len) {
buf[j++] = (byte) ((fromDigit(hex.charAt(i++)) << 4) | fromDigit(hex
.charAt(i++)));
}
return buf;
}
/**
* Returns a byte array from a string of hexadecimal digits.
*/
protected static char[] fromString1(String hex) {
int len = hex.length();
char[] buf = new char[((len + 1) / 2)];
int i = 0, j = 0;
if ((len % 2) == 1)
buf[j++] = (char) fromDigit(hex.charAt(i++));
while (i < len) {
buf[j++] = (char) ((fromDigit(hex.charAt(i++)) << 4) | fromDigit(hex
.charAt(i++)));
}
return buf;
}
/**
* Apply in situ the DES IP trnasformation to a DES block.
*
* @param io DES block as an array of 8-bit entities.
*/
protected static void IP(byte[] io) {
int[] L_R = {
(io[0] & 0xFF) | (io[1] & 0xFF) << 8 | (io[2] & 0xFF) << 16
| (io[3] & 0xFF) << 24,
(io[4] & 0xFF) | (io[5] & 0xFF) << 8 | (io[6] & 0xFF) << 16
| (io[7] & 0xFF) << 24};
IP(L_R);
int L = L_R[0];
int R = L_R[1];
io[0] = (byte) L;
io[1] = (byte) (L >> 8);
io[2] = (byte) (L >> 16);
io[3] = (byte) (L >> 24);
io[4] = (byte) R;
io[5] = (byte) (R >> 8);
io[6] = (byte) (R >> 16);
io[7] = (byte) (R >> 24);
}
/**
* Apply in situ the DES IP trnasformation to a DES block.
*
* @param io DES block as an array of 32-bit entities.
*/
protected static void IP(int[] io) {
int L = io[0];
int R = io[1];
int t = ((R >>> 4) ^ L) & 0x0F0F0F0F;
L ^= t;
R ^= t << 4;
t = ((L >>> 16) ^ R) & 0x0000FFFF;
R ^= t;
L ^= t << 16;
t = ((R >>> 2) ^ L) & 0x33333333;
L ^= t;
R ^= t << 2;
t = ((L >>> 8) ^ R) & 0x00FF00FF;
R ^= t;
L ^= t << 8;
t = ((R >>> 1) ^ L) & 0x55555555;
io[0] = L ^ t;
io[1] = R ^ (t << 1);
}
protected static synchronized Object makeKey(byte[] k) {
int i = 0;
int L = (k[i++] & 0xFF) | (k[i++] & 0xFF) << 8 | (k[i++] & 0xFF) << 16
| (k[i++] & 0xFF) << 24;
int R = (k[i++] & 0xFF) | (k[i++] & 0xFF) << 8 | (k[i++] & 0xFF) << 16
| (k[i++] & 0xFF) << 24;
int t = ((R >>> 4) ^ L) & 0x0F0F0F0F;
L ^= t;
R ^= t << 4;
t = ((L << 18) ^ L) & 0xCCCC0000;
L ^= t ^ t >>> 18;
t = ((R << 18) ^ R) & 0xCCCC0000;
R ^= t ^ t >>> 18;
t = ((R >>> 1) ^ L) & 0x55555555;
L ^= t;
R ^= t << 1;
t = ((L >>> 8) ^ R) & 0x00FF00FF;
R ^= t;
L ^= t << 8;
t = ((R >>> 1) ^ L) & 0x55555555;
L ^= t;
R ^= t << 1;
R = (R & 0x000000FF) << 16 | (R & 0x0000FF00) | (R & 0x00FF0000) >>> 16
| (L & 0xF0000000) >>> 4;
L &= 0x0FFFFFFF;
int s;
int j = 0;
int[] sKey = new int[ROUNDS * 2];
for (i = 0; i < ROUNDS; i++) {
if ((0x7EFC >> i & 1) == 1) {
L = (L >>> 2 | L << 26) & 0x0FFFFFFF;
R = (R >>> 2 | R << 26) & 0x0FFFFFFF;
} else {
L = (L >>> 1 | L << 27) & 0x0FFFFFFF;
R = (R >>> 1 | R << 27) & 0x0FFFFFFF;
}
s = SKB[L & 0x3F]
| SKB[0x040 | (((L >>> 6) & 0x03) | ((L >>> 7) & 0x3C))]
| SKB[0x080 | (((L >>> 13) & 0x0F) | ((L >>> 14) & 0x30))]
| SKB[0x0C0 | (((L >>> 20) & 0x01) | ((L >>> 21) & 0x06) | ((L >>> 22) & 0x38))];
t = SKB[0x100 | (R & 0x3F)]
| SKB[0x140 | (((R >>> 7) & 0x03) | ((R >>> 8) & 0x3C))]
| SKB[0x180 | ((R >>> 15) & 0x3F)]
| SKB[0x1C0 | (((R >>> 21) & 0x0F) | ((R >>> 22) & 0x30))];
sKey[j++] = t << 16 | (s & 0x0000FFFF);
s = s >>> 16 | (t & 0xFFFF0000);
sKey[j++] = s << 4 | s >>> 28;
}
return sKey;
}
protected String stringDec(String strCpt, String strKey) {
String strDes = "";
try {
int intTemp;
int intKey = strKey.getBytes().length;
if ((intKey % 8) == 0)
intTemp = 0;
else
intTemp = 1;
byte[] bytKeyAll = new byte[(intKey / 8 + intTemp) * 8];
bytKeyAll = strKey.getBytes();
byte[] bytKey = new byte[8];
if (intKey < 8) {
for (int iob = 0; iob < 8; iob++)
bytKey[iob] = fromString("00")[0];
System.arraycopy(bytKeyAll, 0, bytKey, 0, intKey);
} else
System.arraycopy(bytKeyAll, 0, bytKey, 0, 8);
Object key = makeKey(bytKey);
int intCpt = strCpt.length();
int intBlock = (intCpt / 16);
byte[] bytBlock = new byte[intCpt / 2];
String[] strBlock = new String[intBlock];
byte[] tmp = new byte[8];
for (int iBlock = 0; iBlock < intBlock; iBlock++) {
strBlock[iBlock] = strCpt.substring(iBlock * 16,
iBlock * 16 + 16);
tmp = blockDecrypt(fromString(strBlock[iBlock]), 0, key);
System.arraycopy(tmp, 0, bytBlock, iBlock * 8, 8);
}
strDes = new String(bytBlock);
strDes = strDes.trim();
} catch (Exception e) {
strDes = "error:" + e.getMessage();
}
return strDes;
}
/**
* <EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* @param strCpt <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param strKey <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
* @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
protected char[] charDec(String strCpt, String strKey) {
byte[] bytBlock = null;
try {
int intTemp;
int intKey = strKey.getBytes().length;
if ((intKey % 8) == 0)
intTemp = 0;
else
intTemp = 1;
byte[] bytKeyAll = new byte[(intKey / 8 + intTemp) * 8];
bytKeyAll = strKey.getBytes();
byte[] bytKey = new byte[8];
if (intKey < 8) {
for (int iob = 0; iob < 8; iob++)
bytKey[iob] = fromString("00")[0];
System.arraycopy(bytKeyAll, 0, bytKey, 0, intKey);
} else
System.arraycopy(bytKeyAll, 0, bytKey, 0, 8);
Object key = makeKey(bytKey);
int intCpt = strCpt.length();
int intBlock = (intCpt / 16);
bytBlock = new byte[intCpt / 2];
String[] strBlock = new String[intBlock];
byte[] tmp = new byte[8];
for (int iBlock = 0; iBlock < intBlock; iBlock++) {
strBlock[iBlock] = strCpt.substring(iBlock * 16,
iBlock * 16 + 16);
tmp = blockDecrypt(fromString(strBlock[iBlock]), 0, key);
System.arraycopy(tmp, 0, bytBlock, iBlock * 8, 8);
}
} catch (Exception e) {
e.printStackTrace();
}
char[] chars = new char[bytBlock.length];
for (int i = 0; i < bytBlock.length; i++) {
chars[i] = (char) bytBlock[i];
}
return chars;
}
protected String stringEnc(String strSrc, String strKey) {
String strCpt = "";
try {
int intTemp;
int intKey = strKey.getBytes().length;
if ((intKey % 8) == 0)
intTemp = 0;
else
intTemp = 1;
byte[] bytKeyAll = new byte[(intKey / 8 + intTemp) * 8];
bytKeyAll = strKey.getBytes();
byte[] bytKey = new byte[8];
if (intKey < 8) {
for (int iob = 0; iob < 8; iob++)
bytKey[iob] = fromString("00")[0];
System.arraycopy(bytKeyAll, 0, bytKey, 0, intKey);
} else
System.arraycopy(bytKeyAll, 0, bytKey, 0, 8);
Object key = makeKey(bytKey);
byte[] bytCpt;
int intSrc = strSrc.getBytes().length;
if ((intSrc % 8) == 0)
intTemp = 0;
else
intTemp = 1;
int intBlock = (intSrc / 8) + intTemp;
byte[] bytBlock = new byte[intBlock * 8];
bytBlock = strSrc.getBytes();
byte[] oBlock = new byte[8];
int intpt;
byte[] srcByte = new byte[intBlock * 8];
for (int iBlock = 0; iBlock < intBlock; iBlock++) {
if ((iBlock < (intBlock - 1)) || (intSrc % 8 == 0))
intpt = 8;
else
intpt = intSrc % 8;
if (intpt < 8) {
for (int ipt = 0; ipt < 8; ipt++)
oBlock[ipt] = fromString("00")[0];
}
System.arraycopy(bytBlock, iBlock * 8, oBlock, 0, intpt);
bytCpt = blockEncrypt(oBlock, 0, key);
System.arraycopy(bytCpt, 0, srcByte, iBlock * 8, bytCpt.length);
strCpt = strCpt + toString(bytCpt);
}
} catch (Exception e) {
strCpt = "error:" + e.getMessage();
}
return strCpt;
}
/**
* <EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* @param strSrc <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param strKey <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
* @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
protected char[] charEnc(String strSrc, String strKey) {
String strCpt = "";
byte[] srcByte = null;
try {
int intTemp;
int intKey = strKey.getBytes().length;
if ((intKey % 8) == 0)
intTemp = 0;
else
intTemp = 1;
byte[] bytKeyAll = new byte[(intKey / 8 + intTemp) * 8];
bytKeyAll = strKey.getBytes();
byte[] bytKey = new byte[8];
if (intKey < 8) {
for (int iob = 0; iob < 8; iob++)
bytKey[iob] = fromString("00")[0];
System.arraycopy(bytKeyAll, 0, bytKey, 0, intKey);
} else
System.arraycopy(bytKeyAll, 0, bytKey, 0, 8);
Object key = makeKey(bytKey);
byte[] bytCpt;
int intSrc = strSrc.getBytes().length;
if ((intSrc % 8) == 0)
intTemp = 0;
else
intTemp = 1;
int intBlock = (intSrc / 8) + intTemp;
char[] bytBlock = new char[intBlock * 8];
bytBlock = strSrc.toCharArray();
byte[] oBlock = new byte[8];
int intpt;
srcByte = new byte[intBlock * 8];
for (int iBlock = 0; iBlock < intBlock; iBlock++) {
if ((iBlock < (intBlock - 1)) || (intSrc % 8 == 0))
intpt = 8;
else
intpt = intSrc % 8;
if (intpt < 8) {
for (int ipt = 0; ipt < 8; ipt++)
oBlock[ipt] = fromString("00")[0];
}
for (int iob = 0; iob < intpt; iob++)
oBlock[iob] = (byte) bytBlock[iBlock * 8 + iob];
bytCpt = blockEncrypt(oBlock, 0, key);
System.arraycopy(bytCpt, 0, srcByte, iBlock * 8, bytCpt.length);
System.out.println("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>" + toString(srcByte));
strCpt = strCpt + toString(bytCpt);
}
} catch (Exception e) {
strCpt = "error:" + e.getMessage();
}
char[] srcChar = new char[srcByte.length];
for (int i = 0; i < srcByte.length; i++) {
srcChar[i] = (char) srcByte[i];
}
return srcChar;
}
/**
* Returns a string of hexadecimal digits from a byte array. Each byte is
* converted to 2 hex symbols.
*/
protected static String toString(byte[] ba) {
int length = ba.length;
char[] buf = new char[length * 2];
for (int i = 0, j = 0, k; i < length; ) {
k = ba[i++];
buf[j++] = HEX_DIGITS[(k >>> 4) & 0x0F];
buf[j++] = HEX_DIGITS[k & 0x0F];
}
return new String(buf);
}
public static void main(String[] args) {
DesHelper desHelper = new DesHelper();
char[] chars = new char[]{0x96, 0xD0, 0x02, 0x88, 0x78, 0xD5, 0x8C,
0x89};
System.out.println("stringEnc:" + desHelper.stringEnc("232323", "2017ynxbdkj8891"));
}
}