数据库密码加密公用秘要生成器，数据库密码加密解密入口

public class Encryptor {public static final String  HUNDSUN_VERSION="@system  管理平台  @version 2.0.1 @lastModiDate @describe ";protected static final int BLOCK_SIZE = 8;private int[] workingKey = null;private byte[] userkey = null;/*** standard constructor.*/public Encryptor(byte[] userkey) {this.userkey = userkey;}/*** initialise a DES cipher.** @param forEncryption whether or not we are for encryption.* @param params the parameters required to set up the cipher.* @exception IllegalArgumentException if the params argument is* inappropriate.*/public void init(boolean encrypting, byte[] key) {if (key != null) {workingKey = generateWorkingKey(encrypting, key);return;}else {throw new IllegalArgumentException("invalid parameter passed to DES init - ");}}public int getBlockSize() {return BLOCK_SIZE;}/*** 
it used to check the parameters and then call desfun()*/public int processBlock(byte[] in,int inOff,byte[] out,int outOff) {if (workingKey == null) {throw new IllegalStateException("DES engine not initialised");}if ( (inOff + BLOCK_SIZE) > in.length) {throw new IllegalStateException("input buffer too short");}if ( (outOff + BLOCK_SIZE) > out.length) {throw new IllegalStateException("output buffer too short");}desFunc(workingKey, in, inOff, out, outOff);return BLOCK_SIZE;}/*** what follows is mainly taken from "Applied Cryptography", by* Bruce Schneier, however it also bears great resemblance to Richard* Outerbridge's D3DES...*/static short[] Df_Key = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,0x89, 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67};static short[] bytebit = {0200, 0100, 040, 020, 010, 04, 02, 01};static int[] bigbyte = {0x800000, 0x400000, 0x200000, 0x100000,0x80000, 0x40000, 0x20000, 0x10000,0x8000, 0x4000, 0x2000, 0x1000,0x800, 0x400, 0x200, 0x100,0x80, 0x40, 0x20, 0x10,0x8, 0x4, 0x2, 0x1};/** Use the key schedule specified in the Standard (ANSI X3.92-1981).*/static byte[] pc1 = {56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17,9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35,62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21,13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3};static byte[] totrot = {1, 2, 4, 6, 8, 10, 12, 14,15, 17, 19, 21, 23, 25, 27, 28};static byte[] pc2 = {13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9,22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1,40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47,43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31};static int[] SP1 = {0x01010400, 0x00000000, 0x00010000, 0x01010404,0x01010004, 0x00010404, 0x00000004, 0x00010000,0x00000400, 0x01010400, 0x01010404, 0x00000400,0x01000404, 0x01010004, 0x01000000, 0x00000004,0x00000404, 0x01000400, 0x01000400, 0x00010400,0x00010400, 0x01010000, 0x01010000, 0x01000404,0x00010004, 0x01000004, 0x01000004, 0x00010004,0x00000000, 0x00000404, 0x00010404, 0x01000000,0x00010000, 0x01010404, 0x00000004, 0x01010000,0x01010400, 0x01000000, 0x01000000, 0x00000400,0x01010004, 0x00010000, 0x00010400, 0x01000004,0x00000400, 0x00000004, 0x01000404, 0x00010404,0x01010404, 0x00010004, 0x01010000, 0x01000404,0x01000004, 0x00000404, 0x00010404, 0x01010400,0x00000404, 0x01000400, 0x01000400, 0x00000000,0x00010004, 0x00010400, 0x00000000, 0x01010004};static int[] SP2 = {0x80108020, 0x80008000, 0x00008000, 0x00108020,0x00100000, 0x00000020, 0x80100020, 0x80008020,0x80000020, 0x80108020, 0x80108000, 0x80000000,0x80008000, 0x00100000, 0x00000020, 0x80100020,0x00108000, 0x00100020, 0x80008020, 0x00000000,0x80000000, 0x00008000, 0x00108020, 0x80100000,0x00100020, 0x80000020, 0x00000000, 0x00108000,0x00008020, 0x80108000, 0x80100000, 0x00008020,0x00000000, 0x00108020, 0x80100020, 0x00100000,0x80008020, 0x80100000, 0x80108000, 0x00008000,0x80100000, 0x80008000, 0x00000020, 0x80108020,0x00108020, 0x00000020, 0x00008000, 0x80000000,0x00008020, 0x80108000, 0x00100000, 0x80000020,0x00100020, 0x80008020, 0x80000020, 0x00100020,0x00108000, 0x00000000, 0x80008000, 0x00008020,0x80000000, 0x80100020, 0x80108020, 0x00108000};static int[] SP3 = {0x00000208, 0x08020200, 0x00000000, 0x08020008,0x08000200, 0x00000000, 0x00020208, 0x08000200,0x00020008, 0x08000008, 0x08000008, 0x00020000,0x08020208, 0x00020008, 0x08020000, 0x00000208,0x08000000, 0x00000008, 0x08020200, 0x00000200,0x00020200, 0x08020000, 0x08020008, 0x00020208,0x08000208, 0x00020200, 0x00020000, 0x08000208,0x00000008, 0x08020208, 0x00000200, 0x08000000,0x08020200, 0x08000000, 0x00020008, 0x00000208,0x00020000, 0x08020200, 0x08000200, 0x00000000,0x00000200, 0x00020008, 0x08020208, 0x08000200,0x08000008, 0x00000200, 0x00000000, 0x08020008,0x08000208, 0x00020000, 0x08000000, 0x08020208,0x00000008, 0x00020208, 0x00020200, 0x08000008,0x08020000, 0x08000208, 0x00000208, 0x08020000,0x00020208, 0x00000008, 0x08020008, 0x00020200};static int[] SP4 = {0x00802001, 0x00002081, 0x00002081, 0x00000080,0x00802080, 0x00800081, 0x00800001, 0x00002001,0x00000000, 0x00802000, 0x00802000, 0x00802081,0x00000081, 0x00000000, 0x00800080, 0x00800001,0x00000001, 0x00002000, 0x00800000, 0x00802001,0x00000080, 0x00800000, 0x00002001, 0x00002080,0x00800081, 0x00000001, 0x00002080, 0x00800080,0x00002000, 0x00802080, 0x00802081, 0x00000081,0x00800080, 0x00800001, 0x00802000, 0x00802081,0x00000081, 0x00000000, 0x00000000, 0x00802000,0x00002080, 0x00800080, 0x00800081, 0x00000001,0x00802001, 0x00002081, 0x00002081, 0x00000080,0x00802081, 0x00000081, 0x00000001, 0x00002000,0x00800001, 0x00002001, 0x00802080, 0x00800081,0x00002001, 0x00002080, 0x00800000, 0x00802001,0x00000080, 0x00800000, 0x00002000, 0x00802080};static int[] SP5 = {0x00000100, 0x02080100, 0x02080000, 0x42000100,0x00080000, 0x00000100, 0x40000000, 0x02080000,0x40080100, 0x00080000, 0x02000100, 0x40080100,0x42000100, 0x42080000, 0x00080100, 0x40000000,0x02000000, 0x40080000, 0x40080000, 0x00000000,0x40000100, 0x42080100, 0x42080100, 0x02000100,0x42080000, 0x40000100, 0x00000000, 0x42000000,0x02080100, 0x02000000, 0x42000000, 0x00080100,0x00080000, 0x42000100, 0x00000100, 0x02000000,0x40000000, 0x02080000, 0x42000100, 0x40080100,0x02000100, 0x40000000, 0x42080000, 0x02080100,0x40080100, 0x00000100, 0x02000000, 0x42080000,0x42080100, 0x00080100, 0x42000000, 0x42080100,0x02080000, 0x00000000, 0x40080000, 0x42000000,0x00080100, 0x02000100, 0x40000100, 0x00080000,0x00000000, 0x40080000, 0x02080100, 0x40000100};static int[] SP6 = {0x20000010, 0x20400000, 0x00004000, 0x20404010,0x20400000, 0x00000010, 0x20404010, 0x00400000,0x20004000, 0x00404010, 0x00400000, 0x20000010,0x00400010, 0x20004000, 0x20000000, 0x00004010,0x00000000, 0x00400010, 0x20004010, 0x00004000,0x00404000, 0x20004010, 0x00000010, 0x20400010,0x20400010, 0x00000000, 0x00404010, 0x20404000,0x00004010, 0x00404000, 0x20404000, 0x20000000,0x20004000, 0x00000010, 0x20400010, 0x00404000,0x20404010, 0x00400000, 0x00004010, 0x20000010,0x00400000, 0x20004000, 0x20000000, 0x00004010,0x20000010, 0x20404010, 0x00404000, 0x20400000,0x00404010, 0x20404000, 0x00000000, 0x20400010,0x00000010, 0x00004000, 0x20400000, 0x00404010,0x00004000, 0x00400010, 0x20004010, 0x00000000,0x20404000, 0x20000000, 0x00400010, 0x20004010};static int[] SP7 = {0x00200000, 0x04200002, 0x04000802, 0x00000000,0x00000800, 0x04000802, 0x00200802, 0x04200800,0x04200802, 0x00200000, 0x00000000, 0x04000002,0x00000002, 0x04000000, 0x04200002, 0x00000802,0x04000800, 0x00200802, 0x00200002, 0x04000800,0x04000002, 0x04200000, 0x04200800, 0x00200002,0x04200000, 0x00000800, 0x00000802, 0x04200802,0x00200800, 0x00000002, 0x04000000, 0x00200800,0x04000000, 0x00200800, 0x00200000, 0x04000802,0x04000802, 0x04200002, 0x04200002, 0x00000002,0x00200002, 0x04000000, 0x04000800, 0x00200000,0x04200800, 0x00000802, 0x00200802, 0x04200800,0x00000802, 0x04000002, 0x04200802, 0x04200000,0x00200800, 0x00000000, 0x00000002, 0x04200802,0x00000000, 0x00200802, 0x04200000, 0x00000800,0x04000002, 0x04000800, 0x00000800, 0x00200002};static int[] SP8 = {0x10001040, 0x00001000, 0x00040000, 0x10041040,0x10000000, 0x10001040, 0x00000040, 0x10000000,0x00040040, 0x10040000, 0x10041040, 0x00041000,0x10041000, 0x00041040, 0x00001000, 0x00000040,0x10040000, 0x10000040, 0x10001000, 0x00001040,0x00041000, 0x00040040, 0x10040040, 0x10041000,0x00001040, 0x00000000, 0x00000000, 0x10040040,0x10000040, 0x10001000, 0x00041040, 0x00040000,0x00041040, 0x00040000, 0x10041000, 0x00001000,0x00000040, 0x10040040, 0x00001000, 0x00041040,0x10001000, 0x00000040, 0x10000040, 0x10040000,0x10040040, 0x10000000, 0x00040000, 0x10001040,0x00000000, 0x10041040, 0x00040040, 0x10000040,0x10040000, 0x10001000, 0x10001040, 0x00000000,0x10041040, 0x00041000, 0x00041000, 0x00001040,0x00001040, 0x00040040, 0x10000000, 0x10041000};/*** generate an integer based working key based on our secret key* and what we processing we are planning to do.** Acknowledgements for this routine go to James Gillogly & Phil Karn.*         (whoever, and wherever they are!).*/protected int[] generateWorkingKey(boolean encrypting,byte[] key) {int[] newKey = new int[32];boolean[] pc1m = new boolean[56],pcr = new boolean[56];for (int j = 0; j < 56; j++) {int l = pc1[j];pc1m[j] = ( (key[l >>> 3] & bytebit[l & 07]) != 0);}for (int i = 0; i < 16; i++) {int l, m, n;if (encrypting) {m = i << 1;}else {m = (15 - i) << 1;}n = m + 1;newKey[m] = newKey[n] = 0;for (int j = 0; j < 28; j++) {l = j + totrot[i];if (l < 28) {pcr[j] = pc1m[l];}else {pcr[j] = pc1m[l - 28];}}for (int j = 28; j < 56; j++) {l = j + totrot[i];if (l < 56) {pcr[j] = pc1m[l];}else {pcr[j] = pc1m[l - 28];}}for (int j = 0; j < 24; j++) {if (pcr[pc2[j]]) {newKey[m] |= bigbyte[j];}if (pcr[pc2[j + 24]]) {newKey[n] |= bigbyte[j];}}}//// store the processed key//
        for (int i = 0; i != 32; i += 2) {int i1, i2;i1 = newKey[i];i2 = newKey[i + 1];newKey[i] = ( (i1 & 0x00fc0000) << 6) | ( (i1 & 0x00000fc0) << 10)| ( (i2 & 0x00fc0000) >>> 10) | ( (i2 & 0x00000fc0) >>> 6);newKey[i + 1] = ( (i1 & 0x0003f000) << 12) |( (i1 & 0x0000003f) << 16)| ( (i2 & 0x0003f000) >>> 4) | (i2 & 0x0000003f);}return newKey;}/*** the DES engine.*/protected void desFunc(int[] wKey,byte[] in,int inOff,byte[] out,int outOff) {int work, right, left;left = (in[inOff + 0] & 0xff) << 24;left |= (in[inOff + 1] & 0xff) << 16;left |= (in[inOff + 2] & 0xff) << 8;left |= (in[inOff + 3] & 0xff);right = (in[inOff + 4] & 0xff) << 24;right |= (in[inOff + 5] & 0xff) << 16;right |= (in[inOff + 6] & 0xff) << 8;right |= (in[inOff + 7] & 0xff);work = ( (left >>> 4) ^ right) & 0x0f0f0f0f;right ^= work;left ^= (work << 4);work = ( (left >>> 16) ^ right) & 0x0000ffff;right ^= work;left ^= (work << 16);work = ( (right >>> 2) ^ left) & 0x33333333;left ^= work;right ^= (work << 2);work = ( (right >>> 8) ^ left) & 0x00ff00ff;left ^= work;right ^= (work << 8);right = ( (right << 1) | ( (right >>> 31) & 1)) & 0xffffffff;work = (left ^ right) & 0xaaaaaaaa;left ^= work;right ^= work;left = ( (left << 1) | ( (left >>> 31) & 1)) & 0xffffffff;for (int round = 0; round < 8; round++) {int fval;work = (right << 28) | (right >>> 4);work ^= wKey[round * 4 + 0];fval = SP7[work & 0x3f];fval |= SP5[ (work >>> 8) & 0x3f];fval |= SP3[ (work >>> 16) & 0x3f];fval |= SP1[ (work >>> 24) & 0x3f];work = right ^ wKey[round * 4 + 1];fval |= SP8[work & 0x3f];fval |= SP6[ (work >>> 8) & 0x3f];fval |= SP4[ (work >>> 16) & 0x3f];fval |= SP2[ (work >>> 24) & 0x3f];left ^= fval;work = (left << 28) | (left >>> 4);work ^= wKey[round * 4 + 2];fval = SP7[work & 0x3f];fval |= SP5[ (work >>> 8) & 0x3f];fval |= SP3[ (work >>> 16) & 0x3f];fval |= SP1[ (work >>> 24) & 0x3f];work = left ^ wKey[round * 4 + 3];fval |= SP8[work & 0x3f];fval |= SP6[ (work >>> 8) & 0x3f];fval |= SP4[ (work >>> 16) & 0x3f];fval |= SP2[ (work >>> 24) & 0x3f];right ^= fval;}right = (right << 31) | (right >>> 1);work = (left ^ right) & 0xaaaaaaaa;left ^= work;right ^= work;left = (left << 31) | (left >>> 1);work = ( (left >>> 8) ^ right) & 0x00ff00ff;right ^= work;left ^= (work << 8);work = ( (left >>> 2) ^ right) & 0x33333333;right ^= work;left ^= (work << 2);work = ( (right >>> 16) ^ left) & 0x0000ffff;left ^= work;right ^= (work << 16);work = ( (right >>> 4) ^ left) & 0x0f0f0f0f;left ^= work;right ^= (work << 4);out[outOff + 0] = (byte) ( (right >>> 24) & 0xff);out[outOff + 1] = (byte) ( (right >>> 16) & 0xff);out[outOff + 2] = (byte) ( (right >>> 8) & 0xff);out[outOff + 3] = (byte) (right & 0xff);out[outOff + 4] = (byte) ( (left >>> 24) & 0xff);out[outOff + 5] = (byte) ( (left >>> 16) & 0xff);out[outOff + 6] = (byte) ( (left >>> 8) & 0xff);out[outOff + 7] = (byte) (left & 0xff);}/***    encrypt the data*    @param byte[]*    @return byte[]*/public byte[] encrypt(byte[] idata) {if(idata == null || idata.length == 0) {return null;}init(true, userkey);int processTimes = idata.length / BLOCK_SIZE;int leftdata = idata.length % BLOCK_SIZE;int olen = 0;byte[] buf = new byte[BLOCK_SIZE * (processTimes + 1)];for (int i = 0; i < processTimes; i++) {olen = i * BLOCK_SIZE;processBlock(idata, olen, buf, olen);}if(processTimes>0)    //modified by  jyh 20071211olen += BLOCK_SIZE;if (leftdata != 0) {byte[] temp = new byte[BLOCK_SIZE];for (int j = 0; j < leftdata; j++) {temp[j] = idata[j + olen];}for (int k = leftdata; k < BLOCK_SIZE; k++) {//temp[k] = (byte) (BLOCK_SIZE - leftdata);  //MODIFIED BY JYH 20080610  发现与后台unix端的加密算法不一致temp[k] = '';                              }processBlock(temp, 0, buf, olen);olen += BLOCK_SIZE;}byte[] result = new byte[olen];for (int j = 0; j < olen; j++) {result[j] = buf[j];}return result;}/***     decrypt the data*    @param byte[]*    @return byte[]*/public byte[] decrypt(byte[] idata) {if (idata == null || idata.length == 0) {return null;}init(false, userkey);int processTimes = idata.length / BLOCK_SIZE;int leftdata = idata.length % BLOCK_SIZE;if (leftdata != 0) {throw new IllegalStateException("input not BLOCK_SIZE times");}int olen = 0;byte[] buf = new byte[idata.length];for (int i = 0; i < processTimes; i++) {olen = i * BLOCK_SIZE;processBlock(idata, olen, buf, olen);}byte bt;for (int j = 1; j < BLOCK_SIZE; j++) {bt = buf[olen + j];int k = j;for (; k < BLOCK_SIZE; k++) {if (bt != buf[olen + k]) {break;}}if (k == BLOCK_SIZE) {if (j == BLOCK_SIZE - bt) {olen = olen + j;break;}else if (j == BLOCK_SIZE - 1) {olen += BLOCK_SIZE;}}}byte[] odata = new byte[olen];for (int k = 0; k < olen; k++) {odata[k] = buf[k];}return odata;}
}

 

public class HsDes {/*** des加密* @param arg* @return*/public static final String   HUNDSUN_VERSION="@system  管理平台  @version 2.0.1 @lastModiDate @describe ";public static String enc(String arg){    //加密一段文本串if(arg==null || arg.length()==0){   //如果为null或者空则加密对0x00处理byte [] b={0x00};arg =new String(new String(b));        //如果为空则返回空
              }Encryptor  enc=new Encryptor("HsAndMoe".getBytes());return byte2hex( enc.encrypt(arg.getBytes()));}/*** des解密* @param arg* @return*/public static String dec(String arg){    //加密一段文本串if(arg==null || arg.length()==0){   //如果为null或者空则返回空串return new String();             //跟unix端c一致
         }Encryptor  dec=new Encryptor("HsAndMoe".getBytes());byte decByte[]=dec.decrypt(hex2byte(arg));return byte2string(decByte);}/*** 由于java字符串没有结束符号,去掉0x00后转换成字符串* @param decByte* @return*/public  static String  byte2string(byte[] decByte){int len=0;for(int i=0;i//将结束符号0x00的去掉，然后再转成字符串，if(decByte[i]==0x00){len=i;break;}}return   len==0?new String():new String(decByte,0,len);}/*** 字节数组转换成16进制字符串* @param b* @return*/public static String byte2hex(byte[] b) { //二行制转字符串String hs="";String stmp="";for (int n=0;n) {stmp=byteHEX(b[n]);hs=hs+stmp;}return hs;}public static String byteHEX(byte ib) {char[] Digit = { '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F' };char [] ob = new char[2];ob[0] = Digit[(ib >>> 4) & 0X0F];ob[1] = Digit[ib & 0X0F];String s = new String(ob);return s;}/*** 16进制字符串转换成字节数组* @param hex* @return*/public static byte[] hex2byte(String hex) {int len = (hex.length() / 2);byte[] result = new byte[len];char[] achar = hex.toCharArray();for (int i = 0; i < len; i++) {int pos = i * 2;result[i] = (byte) (toByte(achar[pos]) << 4 | toByte(achar[pos + 1]));}return result;}private static byte toByte(char c) {byte b = (byte) "0123456789ABCDEF".indexOf(c);return b;}}