public class MD5
{
static final int S11 = 7;
static final int S12 = 12;
static final int S13 = 17;
static final int S14 = 22;
static final int S21 = 5;
static final int S22 = 9;
static final int S23 = 14;
static final int S24 = 20;
static final int S31 = 4;
static final int S32 = 11;
static final int S33 = 16;
static final int S34 = 23;
static final int S41 = 6;
static final int S42 = 10;
static final int S43 = 15;
static final int S44 = 21;
static final char Hex[]=
{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
static final byte PADDING[] = {
-128, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0
};
private long state[];
private long count[];
private byte buffer[];
public String digestHexStr;
private byte digest[];
private byte test;
public String getMD5ofStr(String s)
{//返回MD5串；
int i;
md5Init();
md5Update(s.getBytes(), s.length());
md5Final();
digestHexStr = "";
for(i = 0;i<16;i++)
digestHexStr=digestHexStr+byteHEX(digest[i]);
return digestHexStr;
}
public MD5()
{
state = new long[4];
count = new long[2];
buffer = new byte[64];
digest = new byte[16];
md5Init();
}
private void md5Init()
{//初始化部分变量；
count[0] = 0L;
count[1] = 0L;
state[0] = 0x67452301L;
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;
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