基于J2ME的MD5算法类

        state[1] = 0xefcdab89L;
        state[2] = 0x98badcfeL;
        state[3] = 0x10325476L;
    }
    private long F(long l, long l1, long l2)
    {
        return l & l1 | ~l & l2;
    }
    private long G(long l, long l1, long l2)
    {
        return l & l2 | l1 & ~l2;
    }
    private long H(long l, long l1, long l2)
    {
        return l ^ l1 ^ l2;
    }
    private long I(long l, long l1, long l2)
    {
        return l1 ^ (l | ~l2);
    }
    private long FF(long l, long l1, long l2, long l3, long l4, long l5, long l6)
    {
        l += F(l1, l2, l3) + l4 + l6;
        l = (int)l << (int)l5 | (int)l >>> (int)(32L - l5);
        l += l1;
        return l;
    }
    private long GG(long l, long l1, long l2, long l3, long l4, long l5, long l6)
    {
        l += G(l1, l2, l3) + l4 + l6;
        l = (int)l << (int)l5 | (int)l >>> (int)(32L - l5);
        l += l1;
        return l;
    }
    private long HH(long l, long l1, long l2, long l3, long l4, long l5, long l6)
    {
        l += H(l1, l2, l3) + l4 + l6;
        l = (int)l << (int)l5 | (int)l >>> (int)(32L - l5);
        l += l1;
        return l;
    }
    private long II(long l, long l1, long l2, long l3, long l4, long l5, long l6)
    {
        l += I(l1, l2, l3) + l4 + l6;
        l = (int)l << (int)l5 | (int)l >>> (int)(32L - l5);
        l += l1;
        return l;
    }
    private void md5Update(byte abyte0[], int i)
    {//补位操作，abyte0为需要进行MD5加密的字符串，i为字符串长度；
        byte abyte1[] = new byte[64];
        int k = (int)(count[0] >>> 3) & 0x3f;
        if((count[0] += i << 3) < (long)(i << 3))
            count[1]++;