static unsigned long SP2[64] = {
0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L,
0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L,
0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L,
0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L,
0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L,
0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L,
0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L,
0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L,
0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L,
0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L,
0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L,
0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L,
0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L,
0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L,
0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L,
0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L };static unsigned long SP3[64] = {
0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L,
0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L,
0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L,
0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L,
0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L,
0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L,
0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L,
0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L,
0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L,
0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L,
0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L,
0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L,
0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L,
0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L,
0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L,
0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L };static unsigned long SP4[64] = {
0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L,
0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L,
0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L,
0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L,
0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L,
0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L,
0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L,
0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L,
0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L,
0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L,
0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L,
0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L,
0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L,
0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L };static unsigned long SP5[64] = {
0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L,
0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L,
0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L,
0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L,
0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L,
0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L,
0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L,
0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L,
0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L,
0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L,
0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L,
0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L,
0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L,
0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L,
0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L,
0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L };static unsigned long SP6[64] = {
0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L,
0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L,
0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L,
0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L,
0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L,
0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L,
0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L,
0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L,
0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L,
0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L,
0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L,
0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L,
0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L,
0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L,
0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L,
0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L };static unsigned long SP7[64] = {
0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L,
0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L,
0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L,
0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L,
0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L,
0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L,
0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L,
0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L,
0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L,
0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L,
0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L,
0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L,
0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L,
0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L,
0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L,
0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L };static unsigned long SP8[64] = {
0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L,
0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L,
0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L,
0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L,
0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L,
0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L,
0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L,
0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L,
0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L,
0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L,
0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L,
0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L,
0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L,
0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L,
0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L,
0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L };

解决方案 »

  1.   

    static void desfunc(block, keys)
    register unsigned long *block, *keys;
    {
    register unsigned long fval, work, right, leftt;
    register int round; leftt = block[0];
    right = block[1];
    work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL;
    right ^= work;
    leftt ^= (work << 4);
    work = ((leftt >> 16) ^ right) & 0x0000ffffL;
    right ^= work;
    leftt ^= (work << 16);
    work = ((right >> 2) ^ leftt) & 0x33333333L;
    leftt ^= work;
    right ^= (work << 2);
    work = ((right >> 8) ^ leftt) & 0x00ff00ffL;
    leftt ^= work;
    right ^= (work << 8);
    right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL;
    work = (leftt ^ right) & 0xaaaaaaaaL;
    leftt ^= work;
    right ^= work;
    leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL; for( round = 0; round < 8; round++ ) {
    work  = (right << 28) | (right >> 4);
    work ^= *keys++;
    fval  = SP7[ work  & 0x3fL];
    fval |= SP5[(work >>  8) & 0x3fL];
    fval |= SP3[(work >> 16) & 0x3fL];
    fval |= SP1[(work >> 24) & 0x3fL];
    work  = right ^ *keys++;
    fval |= SP8[ work  & 0x3fL];
    fval |= SP6[(work >>  8) & 0x3fL];
    fval |= SP4[(work >> 16) & 0x3fL];
    fval |= SP2[(work >> 24) & 0x3fL];
    leftt ^= fval;
    work  = (leftt << 28) | (leftt >> 4);
    work ^= *keys++;
    fval  = SP7[ work  & 0x3fL];
    fval |= SP5[(work >>  8) & 0x3fL];
    fval |= SP3[(work >> 16) & 0x3fL];
    fval |= SP1[(work >> 24) & 0x3fL];
    work  = leftt ^ *keys++;
    fval |= SP8[ work  & 0x3fL];
    fval |= SP6[(work >>  8) & 0x3fL];
    fval |= SP4[(work >> 16) & 0x3fL];
    fval |= SP2[(work >> 24) & 0x3fL];
    right ^= fval;
    } right = (right << 31) | (right >> 1);
    work = (leftt ^ right) & 0xaaaaaaaaL;
    leftt ^= work;
    right ^= work;
    leftt = (leftt << 31) | (leftt >> 1);
    work = ((leftt >> 8) ^ right) & 0x00ff00ffL;
    right ^= work;
    leftt ^= (work << 8);
    work = ((leftt >> 2) ^ right) & 0x33333333L;
    right ^= work;
    leftt ^= (work << 2);
    work = ((right >> 16) ^ leftt) & 0x0000ffffL;
    leftt ^= work;
    right ^= (work << 16);
    work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL;
    leftt ^= work;
    right ^= (work << 4);
    *block++ = right;
    *block = leftt;
    return;
    }void des2key(hexkey, mode) /* stomps on Kn3 too */
    unsigned char *hexkey; /* unsigned char[16] */
    short mode;
    {
    short revmod; revmod = (mode == EN0) ? DE1 : EN0;
    deskey(&hexkey[8], revmod);
    cpkey(KnR);
    deskey(hexkey, mode);
    cpkey(Kn3); /* Kn3 = KnL */
    return;
    }void Ddes(from, into)
    unsigned char *from, *into; /* unsigned char[8] */
    {
    unsigned long work[2]; scrunch(from, work);
    desfunc(work, KnL);
    desfunc(work, KnR);
    desfunc(work, Kn3);
    unscrun(work, into);
    return;
    }
      

  2.   

    package com.langchao.tax.gbsk.ic ;
    /**
     * @author 
     * 封装了最基本的DES算法
     */
    public class Des {
             public Des(){};
            /*------------------------------------------------------------------------
               * The public methods
               *----------------------------------------------------------------------*/
              public final boolean setKey(byte[] key) {
                    expandKey(key);
                    if (isWeak(key)) {
                      return false;
                    }
                    for (int i = 0; i < 8; i++) {
                      if ( (key[i] & 0xFF) != parity(key[i])) {
                            return false;
                      }
                    }
                    return true;
              }          public final void encode(byte[] input, byte[] output, boolean encrypt) {
                    int i, l, r, t;                r = byteToInt(input, 0);
                    l = byteToInt(input, 4);                t = ( (l >>> 4) ^ r) & 0x0f0f0f0f;
                    r ^= t;
                    l ^= t << 4;
                    t = ( (r >>> 16) ^ l) & 0x0000ffff;
                    l ^= t;
                    r ^= t << 16;
                    t = ( (l >>> 2) ^ r) & 0x33333333;
                    r ^= t;
                    l ^= t << 2;
                    t = ( (r >>> 8) ^ l) & 0x00ff00ff;
                    l ^= t;
                    r ^= t << 8;
                    t = ( (l >>> 1) ^ r) & 0x55555555;
                    r ^= t;
                    l ^= t << 1;
                    r = (r << 1) | (r >>> 31);
                    l = (l << 1) | (l >>> 31);                if (encrypt) {
                      for (i = 0; i < 32; i += 4) {
                            l ^= DoDES(r ^ schedule[i], r ^ schedule[i + 1]);
                            r ^= DoDES(l ^ schedule[i + 2], l ^ schedule[i + 3]);
                      }
                    }
                    else {
                      for (i = 30; i > 0; i -= 4) {
                            l ^= DoDES(r ^ schedule[i], r ^ schedule[i + 1]);
                            r ^= DoDES(l ^ schedule[i - 2], l ^ schedule[i - 1]);
                      }
                    }                l = (l >>> 1) | (l << 31);
                    r = (r >>> 1) | (r << 31);
                    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;
                    l ^= t;
                    r ^= t << 4;                intToByte(l, output, 0);
                    intToByte(r, output, 4);
              }          private final void addParity(byte[] key) {
                    for (int i = 0; i < 8; i++) {
                      key[i] = (byte) parity(key[i]);
                    }
              }          private final boolean isWeak(byte[] key) {
                    for (int i = 0; i < weak_keys.length; i++) {
                      if ( (byteToInt(key, 0) == weak_keys[i][0])
                              && (byteToInt(key, 4) == weak_keys[i][1])) {
                            return true;
                      }
                    }
                    return false;
              }          /*------------------------------------------------------------------------
               * Internal bits n' bobs
               *----------------------------------------------------------------------*/          private final int DoDES(int t, int u) {
                    int mask = 0x3f;
                    u = (u >>> 4) | (u << 28);
                    return des_SPtrans0[t & mask]
                            | des_SPtrans1[u & mask]
                            | des_SPtrans2[ (t >>> 8) & mask]
                            | des_SPtrans3[ (u >>> 8) & mask]
                            | des_SPtrans4[ (t >>> 16) & mask]
                            | des_SPtrans5[ (u >>> 16) & mask]
                            | des_SPtrans6[ (t >>> 24) & mask]
                            | des_SPtrans7[ (u >>> 24) & mask];
              }          private final int parity(int n) {
                    int d = (n &= 0xFE);
                    while (d != 0) {
                      d &= d - 1;
                      n ^= 1;
                    }
                    return n ^ 1;
              }          private final int byteToInt(byte[] data, int offset) {
                    return ( ( (data[offset + 0] & 0xff))
                                    | ( (data[offset + 1] & 0xff) << 8)
                                    | ( (data[offset + 2] & 0xff) << 16)
                                    | ( (data[offset + 3] & 0xff) << 24));
              }          private final void intToByte(int n, byte[] data, int offset) {
                    data[offset + 0] = (byte) (n & 255);
                    data[offset + 1] = (byte) ( (n >> 8) & 255);
                    data[offset + 2] = (byte) ( (n >> 16) & 255);
                    data[offset + 3] = (byte) ( (n >> 24) & 255);
              }
      

  3.   

    private int[] schedule = new int[32];
              private final void expandKey(byte[] key) {
                    int i, k, c, d, t, s;                c = byteToInt(key, 0);
                    d = byteToInt(key, 4);                t = ( (d >>> 4) ^ c) & 0x0f0f0f0f;
                    c ^= t;
                    d ^= t << 4;
                    t = ( (c << 18) ^ c) & 0xcccc0000;
                    c = c ^ t ^ (t >>> 18);
                    t = ( (d << 18) ^ d) & 0xcccc0000;
                    d = d ^ t ^ (t >>> 18);
                    t = ( (d >>> 1) ^ c) & 0x55555555;
                    c ^= t;
                    d ^= t << 1;
                    t = ( (c >>> 8) ^ d) & 0x00ff00ff;
                    d ^= t;
                    c ^= t << 8;
                    t = ( (d >>> 1) ^ c) & 0x55555555;
                    c ^= t;
                    d ^= t << 1;                d = ( (d & 0x000000ff) << 16) | (d & 0x0000ff00)
                            | ( (d & 0x00ff0000) >>> 16) | ( (c & 0xf0000000) >>> 4);
                    c &= 0x0fffffff;                k = 0;
                    for (i = 0; i < 16; i++) {
                      if (shifts2[i]) {
                            c = ( (c >>> 2) | (c << 26)) & 0x0fffffff;
                            d = ( (d >>> 2) | (d << 26)) & 0x0fffffff;
                      }
                      else {
                            c = ( (c >>> 1) | (c << 27)) & 0x0fffffff;
                            d = ( (d >>> 1) | (d << 27)) & 0x0fffffff;
                      }                  s = des_skb0[c & 0x3f]
                              | des_skb1[ ( (c >>> 6) & 0x03) | ( (c >>> 7) & 0x3c)]
                              | des_skb2[ ( (c >>> 13) & 0x0f) | ( (c >>> 14) & 0x30)]
                              | des_skb3[ ( (c >>> 20) & 0x01) | ( (c >>> 21) & 0x06)
                              | ( (c >>> 22) & 0x38)];                  t = des_skb4[d & 0x3f]
                              | des_skb5[ ( (d >>> 7) & 0x03) | ( (d >>> 8) & 0x3c)]
                              | des_skb6[ (d >>> 15) & 0x3f]
                              | des_skb7[ ( (d >>> 21) & 0x0f) | ( (d >>> 22) & 0x30)];                  schedule[k++] = (t << 16) | (s & 0x0000ffff);
                      s = ( (s >>> 16) | (t & 0xffff0000));
                      schedule[k++] = (s << 4) | (s >>> 28);
                    }
              }          /*------------------------------------------------------------------------
               * tables
               *----------------------------------------------------------------------*/          static private int[][] weak_keys = {
                      {
                      0x01010101, 0x01010101}
                      , {
                      0xFEFEFEFE, 0xFEFEFEFE}
                      , {
                      0x1F1F1F1F, 0x1F1F1F1F}
                      , {
                      0xE0E0E0E0, 0xE0E0E0E0}
                      ,
                      /* semi-weak keys */
                      {
                      0x01FE01FE, 0x01FE01FE}
                      , {
                      0xFE01FE01, 0xFE01FE01}
                      , {
                      0x1FE01FE0, 0x0EF10EF1}
                      , {
                      0xE01FE01F, 0xF10EF10E}
                      , {
                      0x01E001E0, 0x01F101F1}
                      , {
                      0xE001E001, 0xF101F101}
                      , {
                      0x1FFE1FFE, 0x0EFE0EFE}
                      , {
                      0xFE1FFE1F, 0xFE0EFE0E}
                      , {
                      0x011F011F, 0x010E010E}
                      , {
                      0x1F011F01, 0x0E010E01}
                      , {
                      0xE0FEE0FE, 0xF1FEF1FE}
                      , {
                      0xFEE0FEE0, 0xFEF1FEF1}
              };          static private boolean shifts2[] = {
                      false, false, true, true, true, true, true, true,
                      false, true, true, true, true, true, true, false};          static private int[] des_skb0 = {
                      /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
                      0x00000000, 0x00000010, 0x20000000, 0x20000010,
                      0x00010000, 0x00010010, 0x20010000, 0x20010010,
                      0x00000800, 0x00000810, 0x20000800, 0x20000810,
                      0x00010800, 0x00010810, 0x20010800, 0x20010810,
                      0x00000020, 0x00000030, 0x20000020, 0x20000030,
                      0x00010020, 0x00010030, 0x20010020, 0x20010030,
                      0x00000820, 0x00000830, 0x20000820, 0x20000830,
                      0x00010820, 0x00010830, 0x20010820, 0x20010830,
                      0x00080000, 0x00080010, 0x20080000, 0x20080010,
                      0x00090000, 0x00090010, 0x20090000, 0x20090010,
                      0x00080800, 0x00080810, 0x20080800, 0x20080810,
                      0x00090800, 0x00090810, 0x20090800, 0x20090810,
                      0x00080020, 0x00080030, 0x20080020, 0x20080030,
                      0x00090020, 0x00090030, 0x20090020, 0x20090030,
                      0x00080820, 0x00080830, 0x20080820, 0x20080830,
                      0x00090820, 0x00090830, 0x20090820, 0x20090830};          static private int[] des_skb1 = {
                      /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */
                      0x00000000, 0x02000000, 0x00002000, 0x02002000,
                      0x00200000, 0x02200000, 0x00202000, 0x02202000,
                      0x00000004, 0x02000004, 0x00002004, 0x02002004,
                      0x00200004, 0x02200004, 0x00202004, 0x02202004,
                      0x00000400, 0x02000400, 0x00002400, 0x02002400,
                      0x00200400, 0x02200400, 0x00202400, 0x02202400,
                      0x00000404, 0x02000404, 0x00002404, 0x02002404,
                      0x00200404, 0x02200404, 0x00202404, 0x02202404,
                      0x10000000, 0x12000000, 0x10002000, 0x12002000,
                      0x10200000, 0x12200000, 0x10202000, 0x12202000,
                      0x10000004, 0x12000004, 0x10002004, 0x12002004,
                      0x10200004, 0x12200004, 0x10202004, 0x12202004,
                      0x10000400, 0x12000400, 0x10002400, 0x12002400,
                      0x10200400, 0x12200400, 0x10202400, 0x12202400,
                      0x10000404, 0x12000404, 0x10002404, 0x12002404,
                      0x10200404, 0x12200404, 0x10202404, 0x12202404};          static private int[] des_skb2 = {
                      /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */
                      0x00000000, 0x00000001, 0x00040000, 0x00040001,
                      0x01000000, 0x01000001, 0x01040000, 0x01040001,
                      0x00000002, 0x00000003, 0x00040002, 0x00040003,
                      0x01000002, 0x01000003, 0x01040002, 0x01040003,
                      0x00000200, 0x00000201, 0x00040200, 0x00040201,
                      0x01000200, 0x01000201, 0x01040200, 0x01040201,
                      0x00000202, 0x00000203, 0x00040202, 0x00040203,
                      0x01000202, 0x01000203, 0x01040202, 0x01040203,
                      0x08000000, 0x08000001, 0x08040000, 0x08040001,
                      0x09000000, 0x09000001, 0x09040000, 0x09040001,
                      0x08000002, 0x08000003, 0x08040002, 0x08040003,
                      0x09000002, 0x09000003, 0x09040002, 0x09040003,
                      0x08000200, 0x08000201, 0x08040200, 0x08040201,
                      0x09000200, 0x09000201, 0x09040200, 0x09040201,
                      0x08000202, 0x08000203, 0x08040202, 0x08040203,
                      0x09000202, 0x09000203, 0x09040202, 0x09040203};
      

  4.   

    static private int[] des_skb3 = {
                      /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */
                      0x00000000, 0x00100000, 0x00000100, 0x00100100,
                      0x00000008, 0x00100008, 0x00000108, 0x00100108,
                      0x00001000, 0x00101000, 0x00001100, 0x00101100,
                      0x00001008, 0x00101008, 0x00001108, 0x00101108,
                      0x04000000, 0x04100000, 0x04000100, 0x04100100,
                      0x04000008, 0x04100008, 0x04000108, 0x04100108,
                      0x04001000, 0x04101000, 0x04001100, 0x04101100,
                      0x04001008, 0x04101008, 0x04001108, 0x04101108,
                      0x00020000, 0x00120000, 0x00020100, 0x00120100,
                      0x00020008, 0x00120008, 0x00020108, 0x00120108,
                      0x00021000, 0x00121000, 0x00021100, 0x00121100,
                      0x00021008, 0x00121008, 0x00021108, 0x00121108,
                      0x04020000, 0x04120000, 0x04020100, 0x04120100,
                      0x04020008, 0x04120008, 0x04020108, 0x04120108,
                      0x04021000, 0x04121000, 0x04021100, 0x04121100,
                      0x04021008, 0x04121008, 0x04021108, 0x04121108};          static private int[] des_skb4 = {
                      /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
                      0x00000000, 0x10000000, 0x00010000, 0x10010000,
                      0x00000004, 0x10000004, 0x00010004, 0x10010004,
                      0x20000000, 0x30000000, 0x20010000, 0x30010000,
                      0x20000004, 0x30000004, 0x20010004, 0x30010004,
                      0x00100000, 0x10100000, 0x00110000, 0x10110000,
                      0x00100004, 0x10100004, 0x00110004, 0x10110004,
                      0x20100000, 0x30100000, 0x20110000, 0x30110000,
                      0x20100004, 0x30100004, 0x20110004, 0x30110004,
                      0x00001000, 0x10001000, 0x00011000, 0x10011000,
                      0x00001004, 0x10001004, 0x00011004, 0x10011004,
                      0x20001000, 0x30001000, 0x20011000, 0x30011000,
                      0x20001004, 0x30001004, 0x20011004, 0x30011004,
                      0x00101000, 0x10101000, 0x00111000, 0x10111000,
                      0x00101004, 0x10101004, 0x00111004, 0x10111004,
                      0x20101000, 0x30101000, 0x20111000, 0x30111000,
                      0x20101004, 0x30101004, 0x20111004, 0x30111004};          static private int[] des_skb5 = {
                      /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */
                      0x00000000, 0x08000000, 0x00000008, 0x08000008,
                      0x00000400, 0x08000400, 0x00000408, 0x08000408,
                      0x00020000, 0x08020000, 0x00020008, 0x08020008,
                      0x00020400, 0x08020400, 0x00020408, 0x08020408,
                      0x00000001, 0x08000001, 0x00000009, 0x08000009,
                      0x00000401, 0x08000401, 0x00000409, 0x08000409,
                      0x00020001, 0x08020001, 0x00020009, 0x08020009,
                      0x00020401, 0x08020401, 0x00020409, 0x08020409,
                      0x02000000, 0x0A000000, 0x02000008, 0x0A000008,
                      0x02000400, 0x0A000400, 0x02000408, 0x0A000408,
                      0x02020000, 0x0A020000, 0x02020008, 0x0A020008,
                      0x02020400, 0x0A020400, 0x02020408, 0x0A020408,
                      0x02000001, 0x0A000001, 0x02000009, 0x0A000009,
                      0x02000401, 0x0A000401, 0x02000409, 0x0A000409,
                      0x02020001, 0x0A020001, 0x02020009, 0x0A020009,
                      0x02020401, 0x0A020401, 0x02020409, 0x0A020409};          static private int[] des_skb6 = {
                      /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */
                      0x00000000, 0x00000100, 0x00080000, 0x00080100,
                      0x01000000, 0x01000100, 0x01080000, 0x01080100,
                      0x00000010, 0x00000110, 0x00080010, 0x00080110,
                      0x01000010, 0x01000110, 0x01080010, 0x01080110,
                      0x00200000, 0x00200100, 0x00280000, 0x00280100,
                      0x01200000, 0x01200100, 0x01280000, 0x01280100,
                      0x00200010, 0x00200110, 0x00280010, 0x00280110,
                      0x01200010, 0x01200110, 0x01280010, 0x01280110,
                      0x00000200, 0x00000300, 0x00080200, 0x00080300,
                      0x01000200, 0x01000300, 0x01080200, 0x01080300,
                      0x00000210, 0x00000310, 0x00080210, 0x00080310,
                      0x01000210, 0x01000310, 0x01080210, 0x01080310,
                      0x00200200, 0x00200300, 0x00280200, 0x00280300,
                      0x01200200, 0x01200300, 0x01280200, 0x01280300,
                      0x00200210, 0x00200310, 0x00280210, 0x00280310,
                      0x01200210, 0x01200310, 0x01280210, 0x01280310};          static private int[] des_skb7 = {
                      /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */
                      0x00000000, 0x04000000, 0x00040000, 0x04040000,
                      0x00000002, 0x04000002, 0x00040002, 0x04040002,
                      0x00002000, 0x04002000, 0x00042000, 0x04042000,
                      0x00002002, 0x04002002, 0x00042002, 0x04042002,
                      0x00000020, 0x04000020, 0x00040020, 0x04040020,
                      0x00000022, 0x04000022, 0x00040022, 0x04040022,
                      0x00002020, 0x04002020, 0x00042020, 0x04042020,
                      0x00002022, 0x04002022, 0x00042022, 0x04042022,
                      0x00000800, 0x04000800, 0x00040800, 0x04040800,
                      0x00000802, 0x04000802, 0x00040802, 0x04040802,
                      0x00002800, 0x04002800, 0x00042800, 0x04042800,
                      0x00002802, 0x04002802, 0x00042802, 0x04042802,
                      0x00000820, 0x04000820, 0x00040820, 0x04040820,
                      0x00000822, 0x04000822, 0x00040822, 0x04040822,
                      0x00002820, 0x04002820, 0x00042820, 0x04042820,
                      0x00002822, 0x04002822, 0x00042822, 0x04042822};          static private int[] des_SPtrans0 = {
                      0x00820200, 0x00020000, 0x80800000, 0x80820200,
                      0x00800000, 0x80020200, 0x80020000, 0x80800000,
                      0x80020200, 0x00820200, 0x00820000, 0x80000200,
                      0x80800200, 0x00800000, 0x00000000, 0x80020000,
                      0x00020000, 0x80000000, 0x00800200, 0x00020200,
                      0x80820200, 0x00820000, 0x80000200, 0x00800200,
                      0x80000000, 0x00000200, 0x00020200, 0x80820000,
                      0x00000200, 0x80800200, 0x80820000, 0x00000000,
                      0x00000000, 0x80820200, 0x00800200, 0x80020000,
                      0x00820200, 0x00020000, 0x80000200, 0x00800200,
                      0x80820000, 0x00000200, 0x00020200, 0x80800000,
                      0x80020200, 0x80000000, 0x80800000, 0x00820000,
                      0x80820200, 0x00020200, 0x00820000, 0x80800200,
                      0x00800000, 0x80000200, 0x80020000, 0x00000000,
                      0x00020000, 0x00800000, 0x80800200, 0x00820200,
                      0x80000000, 0x80820000, 0x00000200, 0x80020200};
      

  5.   

    public static final String crypt(String salt, String original)
       {
          while(salt.length() < 2)
             salt += "A";      StringBuffer buffer = new StringBuffer("             ");      char charZero = salt.charAt(0);
          char charOne  = salt.charAt(1);      buffer.setCharAt(0, charZero);
          buffer.setCharAt(1, charOne);      int Eswap0 = con_salt[(int)charZero];
          int Eswap1 = con_salt[(int)charOne] << 4;      byte key[] = new byte[8];      for(int i = 0; i < key.length; i ++)
             key[i] = (byte)0;      for(int i = 0; i < key.length && i < original.length(); i ++)
          {
             int iChar = (int)original.charAt(i);         key[i] = (byte)(iChar << 1);
          }      int schedule[] = des_set_key(key);
          int out[]      = body(schedule, Eswap0, Eswap1);      byte b[] = new byte[9];      intToFourBytes(out[0], b, 0);
          intToFourBytes(out[1], b, 4);
          b[8] = 0;      for(int i = 2, y = 0, u = 0x80; i < 13; i ++)
          {
             for(int j = 0, c = 0; j < 6; j ++)
             {
                c <<= 1;            if(((int)b[y] & u) != 0)
                   c |= 1;            u >>>= 1;            if(u == 0)
                {
                   y++;
                   u = 0x80;
                }
                System.out.print(i);
                System.out.print("    ");
                System.out.println(c);
                buffer.setCharAt(i, (char)cov_2char[c]);
             }
          }
          return(buffer.toString());
       }
    crypt为主函数
      

  6.   

    DES算法就直接用现成的了, 自己没有必要写
      

  7.   

    static unsigned long SP2[64] = {
    0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L,
    0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L,
    0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L,
    0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L,
    0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L,
    0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L,
    0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L,
    0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L,
    0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L,
    0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L,
    0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L,
    0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L,
    0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L,
    0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L,
    0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L,
    0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L };static unsigned long SP3[64] = {
    0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L,
    0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L,
    0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L,
    0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L,
    0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L,
    0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L,
    0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L,
    0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L,
    0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L,
    0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L,
    0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L,
    0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L,
    0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L,
    0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L,
    0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L,
    0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L };static unsigned long SP4[64] = {
    0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
    0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L,
    0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L,
    0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L,
    0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L,
    0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L,
    0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L,
    0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L,
    0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L,
    0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L,
    0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L,
    0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
    0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L,
    0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L,
    0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L,
    0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L };static unsigned long SP5[64] = {
    0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L,
    0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L,
    0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L,
    0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L,
    0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L,
    0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L,
    0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L,
    0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L,
    0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L,
    0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L,
    0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L,
    0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L,
    0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L,
    0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L,
    0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L,
    0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L };static unsigned long SP6[64] = {
    0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L,
    0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L,
    0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L,
    0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L,
    0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L,
    0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L,
    0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L,
    0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L,
    0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L,
    0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L,
    0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L,
    0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L,
    0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L,
    0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L,
    0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L,
    0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L };static unsigned long SP7[64] = {
    0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L,
    0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L,
    0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L,
    0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L,
    0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L,
    0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L,
    0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L,
    0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L,
    0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L,
    0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L,
    0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L,
    0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L,
    0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L,
    0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L,
    0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L,
    0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L };static unsigned long SP8[64] = {
    0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L,
    0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L,
    0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L,
    0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L,
    0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L,
    0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L,
    0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L,
    0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L,
    0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L,
    0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L,
    0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L,
    0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L,
    0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L,
    0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L,
    0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L,
    0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L 
    };