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【Java】 MD5加密JAVA实现
作者: / 发布于2011/1/14/ 731
<div><span style="color: #000000">
</span><span style="color: #008000">/**</span><span style="color: #008000">
* 
</span><span style="color: #008000">*/</span><span style="color: #000000">
</span><span style="color: #0000ff">package</span><span style="color: #000000"> com.wensefu.util;

</span><span style="color: #008000">/**</span><span style="color: #008000">
* </span><span style="color: #808080">@author</span><span style="color: #008000">: Topcat Tuppin Last Modified: 10,Mar,2001
</span><span style="color: #008000">*/</span><span style="color: #000000">
</span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">class</span><span style="color: #000000"> MD5 {

 </span><span style="color: #008000">/**</span><span style="color: #008000">***************************** MD5 source code start ******************************</span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * Fields
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S11 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">7</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S12 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">12</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S13 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">17</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S14 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">22</span><span style="color: #000000">;

 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S21 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">5</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S22 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">9</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S23 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">14</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S24 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">20</span><span style="color: #000000">;

 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S31 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">4</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S32 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">11</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S33 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">16</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S34 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">23</span><span style="color: #000000">;

 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S41 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">6</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S42 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">10</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S43 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">15</span><span style="color: #000000">;
 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> S44 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">21</span><span style="color: #000000">;

 </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">final</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] PADDING </span><span style="color: #000000">=</span><span style="color: #000000"> { </span><span style="color: #000000">-</span><span style="color: #000000">128</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">,
 </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">,
 </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">,
 </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000">, </span><span style="color: #000000">0</span><span style="color: #000000"> };

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000">[] state </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000">[</span><span style="color: #000000">4</span><span style="color: #000000">];
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000">[] count </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000">[</span><span style="color: #000000">2</span><span style="color: #000000">];
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] buffer </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[</span><span style="color: #000000">64</span><span style="color: #000000">];

 </span><span style="color: #0000ff">public</span><span style="color: #000000"> String digestHexStr;

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] digest </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[</span><span style="color: #000000">16</span><span style="color: #000000">];

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * Default constructor
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> MD5() {
 md5Init();
 </span><span style="color: #0000ff">return</span><span style="color: #000000">;
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * Initializing method
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> md5Init() {
 count[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0L</span><span style="color: #000000">;
 count[</span><span style="color: #000000">1</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0L</span><span style="color: #000000">;

 state[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0x67452301L</span><span style="color: #000000">;
 state[</span><span style="color: #000000">1</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0xefcdab89L</span><span style="color: #000000">;
 state[</span><span style="color: #000000">2</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0x98badcfeL</span><span style="color: #000000">;
 state[</span><span style="color: #000000">3</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0x10325476L</span><span style="color: #000000">;

 </span><span style="color: #0000ff">return</span><span style="color: #000000">;
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * F, G, H, I
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> F(</span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> y, </span><span style="color: #0000ff">long</span><span style="color: #000000"> z) {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> (x </span><span style="color: #000000">&</span><span style="color: #000000"> y) </span><span style="color: #000000">|</span><span style="color: #000000"> ((</span><span style="color: #000000">~</span><span style="color: #000000">x) </span><span style="color: #000000">&</span><span style="color: #000000"> z);
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> G(</span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> y, </span><span style="color: #0000ff">long</span><span style="color: #000000"> z) {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> (x </span><span style="color: #000000">&</span><span style="color: #000000"> z) </span><span style="color: #000000">|</span><span style="color: #000000"> (y </span><span style="color: #000000">&</span><span style="color: #000000"> (</span><span style="color: #000000">~</span><span style="color: #000000">z));
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> H(</span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> y, </span><span style="color: #0000ff">long</span><span style="color: #000000"> z) {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> x </span><span style="color: #000000">^</span><span style="color: #000000"> y </span><span style="color: #000000">^</span><span style="color: #000000"> z;
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> I(</span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> y, </span><span style="color: #0000ff">long</span><span style="color: #000000"> z) {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> y </span><span style="color: #000000">^</span><span style="color: #000000"> (x </span><span style="color: #000000">|</span><span style="color: #000000"> (</span><span style="color: #000000">~</span><span style="color: #000000">z));
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * FF, GG, HH, II
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> FF(</span><span style="color: #0000ff">long</span><span style="color: #000000"> a, </span><span style="color: #0000ff">long</span><span style="color: #000000"> b, </span><span style="color: #0000ff">long</span><span style="color: #000000"> c, </span><span style="color: #0000ff">long</span><span style="color: #000000"> d, </span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> s, </span><span style="color: #0000ff">long</span><span style="color: #000000"> ac) {
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> F(b, c, d) </span><span style="color: #000000">+</span><span style="color: #000000"> x </span><span style="color: #000000">+</span><span style="color: #000000"> ac;
 a </span><span style="color: #000000">=</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000"><<</span><span style="color: #000000"> s) </span><span style="color: #000000">|</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000">>>></span><span style="color: #000000"> (</span><span style="color: #000000">32</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> s));
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> b;
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> a;
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> GG(</span><span style="color: #0000ff">long</span><span style="color: #000000"> a, </span><span style="color: #0000ff">long</span><span style="color: #000000"> b, </span><span style="color: #0000ff">long</span><span style="color: #000000"> c, </span><span style="color: #0000ff">long</span><span style="color: #000000"> d, </span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> s, </span><span style="color: #0000ff">long</span><span style="color: #000000"> ac) {
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> G(b, c, d) </span><span style="color: #000000">+</span><span style="color: #000000"> x </span><span style="color: #000000">+</span><span style="color: #000000"> ac;
 a </span><span style="color: #000000">=</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000"><<</span><span style="color: #000000"> s) </span><span style="color: #000000">|</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000">>>></span><span style="color: #000000"> (</span><span style="color: #000000">32</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> s));
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> b;
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> a;
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> HH(</span><span style="color: #0000ff">long</span><span style="color: #000000"> a, </span><span style="color: #0000ff">long</span><span style="color: #000000"> b, </span><span style="color: #0000ff">long</span><span style="color: #000000"> c, </span><span style="color: #0000ff">long</span><span style="color: #000000"> d, </span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> s, </span><span style="color: #0000ff">long</span><span style="color: #000000"> ac) {
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> H(b, c, d) </span><span style="color: #000000">+</span><span style="color: #000000"> x </span><span style="color: #000000">+</span><span style="color: #000000"> ac;
 a </span><span style="color: #000000">=</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000"><<</span><span style="color: #000000"> s) </span><span style="color: #000000">|</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000">>>></span><span style="color: #000000"> (</span><span style="color: #000000">32</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> s));
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> b;
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> a;
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> II(</span><span style="color: #0000ff">long</span><span style="color: #000000"> a, </span><span style="color: #0000ff">long</span><span style="color: #000000"> b, </span><span style="color: #0000ff">long</span><span style="color: #000000"> c, </span><span style="color: #0000ff">long</span><span style="color: #000000"> d, </span><span style="color: #0000ff">long</span><span style="color: #000000"> x, </span><span style="color: #0000ff">long</span><span style="color: #000000"> s, </span><span style="color: #0000ff">long</span><span style="color: #000000"> ac) {
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> I(b, c, d) </span><span style="color: #000000">+</span><span style="color: #000000"> x </span><span style="color: #000000">+</span><span style="color: #000000"> ac;
 a </span><span style="color: #000000">=</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000"><<</span><span style="color: #000000"> s) </span><span style="color: #000000">|</span><span style="color: #000000"> ((</span><span style="color: #0000ff">int</span><span style="color: #000000">) a </span><span style="color: #000000">>>></span><span style="color: #000000"> (</span><span style="color: #000000">32</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> s));
 a </span><span style="color: #000000">+=</span><span style="color: #000000"> b;
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> a;
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * Update md5 Method
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> md5Update(</span><span style="color: #0000ff">byte</span><span style="color: #000000">[] inbuf, </span><span style="color: #0000ff">int</span><span style="color: #000000"> inputLen) {

 </span><span style="color: #0000ff">int</span><span style="color: #000000"> i, index, partLen;
 </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] block </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[</span><span style="color: #000000">64</span><span style="color: #000000">];
 index </span><span style="color: #000000">=</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000">) (count[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">3</span><span style="color: #000000">) </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0x3F</span><span style="color: #000000">;

 </span><span style="color: #0000ff">if</span><span style="color: #000000"> ((count[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">+=</span><span style="color: #000000"> (inputLen </span><span style="color: #000000"><<</span><span style="color: #000000"> </span><span style="color: #000000">3</span><span style="color: #000000">)) </span><span style="color: #000000"><</span><span style="color: #000000"> (inputLen </span><span style="color: #000000"><<</span><span style="color: #000000"> </span><span style="color: #000000">3</span><span style="color: #000000">))
 count[</span><span style="color: #000000">1</span><span style="color: #000000">]</span><span style="color: #000000">++</span><span style="color: #000000">;
 count[</span><span style="color: #000000">1</span><span style="color: #000000">] </span><span style="color: #000000">+=</span><span style="color: #000000"> (inputLen </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">29</span><span style="color: #000000">);
 partLen </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">64</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> index;

 </span><span style="color: #0000ff">if</span><span style="color: #000000"> (inputLen </span><span style="color: #000000">>=</span><span style="color: #000000"> partLen) {
 md5Memcpy(buffer, inbuf, index, </span><span style="color: #000000">0</span><span style="color: #000000">, partLen);
 md5Transform(buffer);
 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (i </span><span style="color: #000000">=</span><span style="color: #000000"> partLen; i </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">63</span><span style="color: #000000"> </span><span style="color: #000000"><</span><span style="color: #000000"> inputLen; i </span><span style="color: #000000">+=</span><span style="color: #000000"> </span><span style="color: #000000">64</span><span style="color: #000000">) {
 md5Memcpy(block, inbuf, </span><span style="color: #000000">0</span><span style="color: #000000">, i, </span><span style="color: #000000">64</span><span style="color: #000000">);
 md5Transform(block);
 }
 index </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">;
 } </span><span style="color: #0000ff">else</span><span style="color: #000000">
 i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">;
 md5Memcpy(buffer, inbuf, index, i, inputLen </span><span style="color: #000000">-</span><span style="color: #000000"> i);
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> md5Final() {
 </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] bits </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[</span><span style="color: #000000">8</span><span style="color: #000000">];
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> index, padLen;

 Encode(bits, count, </span><span style="color: #000000">8</span><span style="color: #000000">);

 index </span><span style="color: #000000">=</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000">) (count[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">3</span><span style="color: #000000">) </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0x3f</span><span style="color: #000000">;
 padLen </span><span style="color: #000000">=</span><span style="color: #000000"> (index </span><span style="color: #000000"><</span><span style="color: #000000"> </span><span style="color: #000000">56</span><span style="color: #000000">) </span><span style="color: #000000">?</span><span style="color: #000000"> (</span><span style="color: #000000">56</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> index) : (</span><span style="color: #000000">120</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000"> index);
 md5Update(PADDING, padLen);

 md5Update(bits, </span><span style="color: #000000">8</span><span style="color: #000000">);

 Encode(digest, state, </span><span style="color: #000000">16</span><span style="color: #000000">);
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> md5Memcpy(</span><span style="color: #0000ff">byte</span><span style="color: #000000">[] output, </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] input, </span><span style="color: #0000ff">int</span><span style="color: #000000"> outpos, </span><span style="color: #0000ff">int</span><span style="color: #000000"> inpos,
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> len) {

 </span><span style="color: #0000ff">int</span><span style="color: #000000"> i;
 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">; i </span><span style="color: #000000"><</span><span style="color: #000000"> len; i</span><span style="color: #000000">++</span><span style="color: #000000">)
 output[outpos </span><span style="color: #000000">+</span><span style="color: #000000"> i] </span><span style="color: #000000">=</span><span style="color: #000000"> input[inpos </span><span style="color: #000000">+</span><span style="color: #000000"> i];
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> md5Transform(</span><span style="color: #0000ff">byte</span><span style="color: #000000"> block[]) {

 </span><span style="color: #0000ff">long</span><span style="color: #000000"> a </span><span style="color: #000000">=</span><span style="color: #000000"> state[</span><span style="color: #000000">0</span><span style="color: #000000">], b </span><span style="color: #000000">=</span><span style="color: #000000"> state[</span><span style="color: #000000">1</span><span style="color: #000000">], c </span><span style="color: #000000">=</span><span style="color: #000000"> state[</span><span style="color: #000000">2</span><span style="color: #000000">], d </span><span style="color: #000000">=</span><span style="color: #000000"> state[</span><span style="color: #000000">3</span><span style="color: #000000">];
 </span><span style="color: #0000ff">long</span><span style="color: #000000">[] x </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000">[</span><span style="color: #000000">16</span><span style="color: #000000">];

 Decode(x, block, </span><span style="color: #000000">64</span><span style="color: #000000">);

 </span><span style="color: #008000">/*</span><span style="color: #008000"> Round 1 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> FF(a, b, c, d, x[</span><span style="color: #000000">0</span><span style="color: #000000">], S11, </span><span style="color: #000000">0xd76aa478L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 1 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> FF(d, a, b, c, x[</span><span style="color: #000000">1</span><span style="color: #000000">], S12, </span><span style="color: #000000">0xe8c7b756L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 2 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> FF(c, d, a, b, x[</span><span style="color: #000000">2</span><span style="color: #000000">], S13, </span><span style="color: #000000">0x242070dbL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 3 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> FF(b, c, d, a, x[</span><span style="color: #000000">3</span><span style="color: #000000">], S14, </span><span style="color: #000000">0xc1bdceeeL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 4 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> FF(a, b, c, d, x[</span><span style="color: #000000">4</span><span style="color: #000000">], S11, </span><span style="color: #000000">0xf57c0fafL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 5 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> FF(d, a, b, c, x[</span><span style="color: #000000">5</span><span style="color: #000000">], S12, </span><span style="color: #000000">0x4787c62aL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 6 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> FF(c, d, a, b, x[</span><span style="color: #000000">6</span><span style="color: #000000">], S13, </span><span style="color: #000000">0xa8304613L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 7 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> FF(b, c, d, a, x[</span><span style="color: #000000">7</span><span style="color: #000000">], S14, </span><span style="color: #000000">0xfd469501L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 8 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> FF(a, b, c, d, x[</span><span style="color: #000000">8</span><span style="color: #000000">], S11, </span><span style="color: #000000">0x698098d8L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 9 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> FF(d, a, b, c, x[</span><span style="color: #000000">9</span><span style="color: #000000">], S12, </span><span style="color: #000000">0x8b44f7afL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 10 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> FF(c, d, a, b, x[</span><span style="color: #000000">10</span><span style="color: #000000">], S13, </span><span style="color: #000000">0xffff5bb1L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 11 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> FF(b, c, d, a, x[</span><span style="color: #000000">11</span><span style="color: #000000">], S14, </span><span style="color: #000000">0x895cd7beL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 12 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> FF(a, b, c, d, x[</span><span style="color: #000000">12</span><span style="color: #000000">], S11, </span><span style="color: #000000">0x6b901122L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 13 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> FF(d, a, b, c, x[</span><span style="color: #000000">13</span><span style="color: #000000">], S12, </span><span style="color: #000000">0xfd987193L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 14 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> FF(c, d, a, b, x[</span><span style="color: #000000">14</span><span style="color: #000000">], S13, </span><span style="color: #000000">0xa679438eL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 15 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> FF(b, c, d, a, x[</span><span style="color: #000000">15</span><span style="color: #000000">], S14, </span><span style="color: #000000">0x49b40821L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 16 </span><span style="color: #008000">*/</span><span style="color: #000000">

 </span><span style="color: #008000">/*</span><span style="color: #008000"> Round 2 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> GG(a, b, c, d, x[</span><span style="color: #000000">1</span><span style="color: #000000">], S21, </span><span style="color: #000000">0xf61e2562L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 17 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> GG(d, a, b, c, x[</span><span style="color: #000000">6</span><span style="color: #000000">], S22, </span><span style="color: #000000">0xc040b340L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 18 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> GG(c, d, a, b, x[</span><span style="color: #000000">11</span><span style="color: #000000">], S23, </span><span style="color: #000000">0x265e5a51L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 19 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> GG(b, c, d, a, x[</span><span style="color: #000000">0</span><span style="color: #000000">], S24, </span><span style="color: #000000">0xe9b6c7aaL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 20 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> GG(a, b, c, d, x[</span><span style="color: #000000">5</span><span style="color: #000000">], S21, </span><span style="color: #000000">0xd62f105dL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 21 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> GG(d, a, b, c, x[</span><span style="color: #000000">10</span><span style="color: #000000">], S22, </span><span style="color: #000000">0x2441453L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 22 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> GG(c, d, a, b, x[</span><span style="color: #000000">15</span><span style="color: #000000">], S23, </span><span style="color: #000000">0xd8a1e681L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 23 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> GG(b, c, d, a, x[</span><span style="color: #000000">4</span><span style="color: #000000">], S24, </span><span style="color: #000000">0xe7d3fbc8L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 24 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> GG(a, b, c, d, x[</span><span style="color: #000000">9</span><span style="color: #000000">], S21, </span><span style="color: #000000">0x21e1cde6L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 25 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> GG(d, a, b, c, x[</span><span style="color: #000000">14</span><span style="color: #000000">], S22, </span><span style="color: #000000">0xc33707d6L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 26 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> GG(c, d, a, b, x[</span><span style="color: #000000">3</span><span style="color: #000000">], S23, </span><span style="color: #000000">0xf4d50d87L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 27 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> GG(b, c, d, a, x[</span><span style="color: #000000">8</span><span style="color: #000000">], S24, </span><span style="color: #000000">0x455a14edL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 28 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> GG(a, b, c, d, x[</span><span style="color: #000000">13</span><span style="color: #000000">], S21, </span><span style="color: #000000">0xa9e3e905L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 29 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> GG(d, a, b, c, x[</span><span style="color: #000000">2</span><span style="color: #000000">], S22, </span><span style="color: #000000">0xfcefa3f8L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 30 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> GG(c, d, a, b, x[</span><span style="color: #000000">7</span><span style="color: #000000">], S23, </span><span style="color: #000000">0x676f02d9L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 31 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> GG(b, c, d, a, x[</span><span style="color: #000000">12</span><span style="color: #000000">], S24, </span><span style="color: #000000">0x8d2a4c8aL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 32 </span><span style="color: #008000">*/</span><span style="color: #000000">

 </span><span style="color: #008000">/*</span><span style="color: #008000"> Round 3 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> HH(a, b, c, d, x[</span><span style="color: #000000">5</span><span style="color: #000000">], S31, </span><span style="color: #000000">0xfffa3942L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 33 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> HH(d, a, b, c, x[</span><span style="color: #000000">8</span><span style="color: #000000">], S32, </span><span style="color: #000000">0x8771f681L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 34 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> HH(c, d, a, b, x[</span><span style="color: #000000">11</span><span style="color: #000000">], S33, </span><span style="color: #000000">0x6d9d6122L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 35 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> HH(b, c, d, a, x[</span><span style="color: #000000">14</span><span style="color: #000000">], S34, </span><span style="color: #000000">0xfde5380cL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 36 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> HH(a, b, c, d, x[</span><span style="color: #000000">1</span><span style="color: #000000">], S31, </span><span style="color: #000000">0xa4beea44L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 37 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> HH(d, a, b, c, x[</span><span style="color: #000000">4</span><span style="color: #000000">], S32, </span><span style="color: #000000">0x4bdecfa9L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 38 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> HH(c, d, a, b, x[</span><span style="color: #000000">7</span><span style="color: #000000">], S33, </span><span style="color: #000000">0xf6bb4b60L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 39 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> HH(b, c, d, a, x[</span><span style="color: #000000">10</span><span style="color: #000000">], S34, </span><span style="color: #000000">0xbebfbc70L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 40 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> HH(a, b, c, d, x[</span><span style="color: #000000">13</span><span style="color: #000000">], S31, </span><span style="color: #000000">0x289b7ec6L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 41 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> HH(d, a, b, c, x[</span><span style="color: #000000">0</span><span style="color: #000000">], S32, </span><span style="color: #000000">0xeaa127faL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 42 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> HH(c, d, a, b, x[</span><span style="color: #000000">3</span><span style="color: #000000">], S33, </span><span style="color: #000000">0xd4ef3085L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 43 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> HH(b, c, d, a, x[</span><span style="color: #000000">6</span><span style="color: #000000">], S34, </span><span style="color: #000000">0x4881d05L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 44 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> HH(a, b, c, d, x[</span><span style="color: #000000">9</span><span style="color: #000000">], S31, </span><span style="color: #000000">0xd9d4d039L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 45 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> HH(d, a, b, c, x[</span><span style="color: #000000">12</span><span style="color: #000000">], S32, </span><span style="color: #000000">0xe6db99e5L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 46 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> HH(c, d, a, b, x[</span><span style="color: #000000">15</span><span style="color: #000000">], S33, </span><span style="color: #000000">0x1fa27cf8L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 47 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> HH(b, c, d, a, x[</span><span style="color: #000000">2</span><span style="color: #000000">], S34, </span><span style="color: #000000">0xc4ac5665L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 48 </span><span style="color: #008000">*/</span><span style="color: #000000">

 </span><span style="color: #008000">/*</span><span style="color: #008000"> Round 4 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> II(a, b, c, d, x[</span><span style="color: #000000">0</span><span style="color: #000000">], S41, </span><span style="color: #000000">0xf4292244L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 49 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> II(d, a, b, c, x[</span><span style="color: #000000">7</span><span style="color: #000000">], S42, </span><span style="color: #000000">0x432aff97L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 50 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> II(c, d, a, b, x[</span><span style="color: #000000">14</span><span style="color: #000000">], S43, </span><span style="color: #000000">0xab9423a7L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 51 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> II(b, c, d, a, x[</span><span style="color: #000000">5</span><span style="color: #000000">], S44, </span><span style="color: #000000">0xfc93a039L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 52 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> II(a, b, c, d, x[</span><span style="color: #000000">12</span><span style="color: #000000">], S41, </span><span style="color: #000000">0x655b59c3L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 53 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> II(d, a, b, c, x[</span><span style="color: #000000">3</span><span style="color: #000000">], S42, </span><span style="color: #000000">0x8f0ccc92L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 54 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> II(c, d, a, b, x[</span><span style="color: #000000">10</span><span style="color: #000000">], S43, </span><span style="color: #000000">0xffeff47dL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 55 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> II(b, c, d, a, x[</span><span style="color: #000000">1</span><span style="color: #000000">], S44, </span><span style="color: #000000">0x85845dd1L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 56 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> II(a, b, c, d, x[</span><span style="color: #000000">8</span><span style="color: #000000">], S41, </span><span style="color: #000000">0x6fa87e4fL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 57 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> II(d, a, b, c, x[</span><span style="color: #000000">15</span><span style="color: #000000">], S42, </span><span style="color: #000000">0xfe2ce6e0L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 58 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> II(c, d, a, b, x[</span><span style="color: #000000">6</span><span style="color: #000000">], S43, </span><span style="color: #000000">0xa3014314L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 59 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> II(b, c, d, a, x[</span><span style="color: #000000">13</span><span style="color: #000000">], S44, </span><span style="color: #000000">0x4e0811a1L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 60 </span><span style="color: #008000">*/</span><span style="color: #000000">
 a </span><span style="color: #000000">=</span><span style="color: #000000"> II(a, b, c, d, x[</span><span style="color: #000000">4</span><span style="color: #000000">], S41, </span><span style="color: #000000">0xf7537e82L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 61 </span><span style="color: #008000">*/</span><span style="color: #000000">
 d </span><span style="color: #000000">=</span><span style="color: #000000"> II(d, a, b, c, x[</span><span style="color: #000000">11</span><span style="color: #000000">], S42, </span><span style="color: #000000">0xbd3af235L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 62 </span><span style="color: #008000">*/</span><span style="color: #000000">
 c </span><span style="color: #000000">=</span><span style="color: #000000"> II(c, d, a, b, x[</span><span style="color: #000000">2</span><span style="color: #000000">], S43, </span><span style="color: #000000">0x2ad7d2bbL</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 63 </span><span style="color: #008000">*/</span><span style="color: #000000">
 b </span><span style="color: #000000">=</span><span style="color: #000000"> II(b, c, d, a, x[</span><span style="color: #000000">9</span><span style="color: #000000">], S44, </span><span style="color: #000000">0xeb86d391L</span><span style="color: #000000">); </span><span style="color: #008000">/*</span><span style="color: #008000"> 64 </span><span style="color: #008000">*/</span><span style="color: #000000">

 state[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">+=</span><span style="color: #000000"> a;
 state[</span><span style="color: #000000">1</span><span style="color: #000000">] </span><span style="color: #000000">+=</span><span style="color: #000000"> b;
 state[</span><span style="color: #000000">2</span><span style="color: #000000">] </span><span style="color: #000000">+=</span><span style="color: #000000"> c;
 state[</span><span style="color: #000000">3</span><span style="color: #000000">] </span><span style="color: #000000">+=</span><span style="color: #000000"> d;
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> Encode(</span><span style="color: #0000ff">byte</span><span style="color: #000000">[] output, </span><span style="color: #0000ff">long</span><span style="color: #000000">[] input, </span><span style="color: #0000ff">int</span><span style="color: #000000"> len) {

 </span><span style="color: #0000ff">int</span><span style="color: #000000"> i, j;

 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">, j </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">; j </span><span style="color: #000000"><</span><span style="color: #000000"> len; i</span><span style="color: #000000">++</span><span style="color: #000000">, j </span><span style="color: #000000">+=</span><span style="color: #000000"> </span><span style="color: #000000">4</span><span style="color: #000000">) {
 output[j] </span><span style="color: #000000">=</span><span style="color: #000000"> (</span><span style="color: #0000ff">byte</span><span style="color: #000000">) (input[i] </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0xffL</span><span style="color: #000000">);
 output[j </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">1</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> (</span><span style="color: #0000ff">byte</span><span style="color: #000000">) ((input[i] </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">8</span><span style="color: #000000">) </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0xffL</span><span style="color: #000000">);
 output[j </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">2</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> (</span><span style="color: #0000ff">byte</span><span style="color: #000000">) ((input[i] </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">16</span><span style="color: #000000">) </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0xffL</span><span style="color: #000000">);
 output[j </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">3</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> (</span><span style="color: #0000ff">byte</span><span style="color: #000000">) ((input[i] </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">24</span><span style="color: #000000">) </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0xffL</span><span style="color: #000000">);
 }
 }

 </span><span style="color: #0000ff">private</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> Decode(</span><span style="color: #0000ff">long</span><span style="color: #000000">[] output, </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] input, </span><span style="color: #0000ff">int</span><span style="color: #000000"> len) {

 </span><span style="color: #0000ff">int</span><span style="color: #000000"> i, j;

 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">, j </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">; j </span><span style="color: #000000"><</span><span style="color: #000000"> len; i</span><span style="color: #000000">++</span><span style="color: #000000">, j </span><span style="color: #000000">+=</span><span style="color: #000000"> </span><span style="color: #000000">4</span><span style="color: #000000">)
 output[i] </span><span style="color: #000000">=</span><span style="color: #000000"> b2iu(input[j]) </span><span style="color: #000000">|</span><span style="color: #000000"> (b2iu(input[j </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">1</span><span style="color: #000000">]) </span><span style="color: #000000"><<</span><span style="color: #000000"> </span><span style="color: #000000">8</span><span style="color: #000000">)
 </span><span style="color: #000000">|</span><span style="color: #000000"> (b2iu(input[j </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">2</span><span style="color: #000000">]) </span><span style="color: #000000"><<</span><span style="color: #000000"> </span><span style="color: #000000">16</span><span style="color: #000000">) </span><span style="color: #000000">|</span><span style="color: #000000"> (b2iu(input[j </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">3</span><span style="color: #000000">]) </span><span style="color: #000000"><<</span><span style="color: #000000"> </span><span style="color: #000000">24</span><span style="color: #000000">);
 </span><span style="color: #0000ff">return</span><span style="color: #000000">;
 }

 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">long</span><span style="color: #000000"> b2iu(</span><span style="color: #0000ff">byte</span><span style="color: #000000"> b) {

 </span><span style="color: #0000ff">return</span><span style="color: #000000"> b </span><span style="color: #000000"><</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000"> </span><span style="color: #000000">?</span><span style="color: #000000"> b </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0x7F</span><span style="color: #000000"> </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">128</span><span style="color: #000000"> : b;
 }

 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> String byteHEX(</span><span style="color: #0000ff">byte</span><span style="color: #000000"> ib) {

 </span><span style="color: #0000ff">char</span><span style="color: #000000">[] Digit </span><span style="color: #000000">=</span><span style="color: #000000"> { </span><span style="color: #000000">'</span><span style="color: #000000">0</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">1</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">2</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">3</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">4</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">5</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">6</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">7</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">8</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">9</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">A</span><span style="color: #000000">'</span><span style="color: #000000">,
 </span><span style="color: #000000">'</span><span style="color: #000000">B</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">C</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">D</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">E</span><span style="color: #000000">'</span><span style="color: #000000">, </span><span style="color: #000000">'</span><span style="color: #000000">F</span><span style="color: #000000">'</span><span style="color: #000000"> };
 </span><span style="color: #0000ff">char</span><span style="color: #000000">[] ob </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">char</span><span style="color: #000000">[</span><span style="color: #000000">2</span><span style="color: #000000">];
 ob[</span><span style="color: #000000">0</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> Digit[(ib </span><span style="color: #000000">>>></span><span style="color: #000000"> </span><span style="color: #000000">4</span><span style="color: #000000">) </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0X0F</span><span style="color: #000000">];
 ob[</span><span style="color: #000000">1</span><span style="color: #000000">] </span><span style="color: #000000">=</span><span style="color: #000000"> Digit[ib </span><span style="color: #000000">&</span><span style="color: #000000"> </span><span style="color: #000000">0X0F</span><span style="color: #000000">];
 String s </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> String(ob);
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> s;
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * public method for use MD5.
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> String getMD5ofStr(String inbuf) {

 md5Init();
 md5Update(inbuf.getBytes(), inbuf.length());
 md5Final();
 digestHexStr </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">""</span><span style="color: #000000">;
 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000"> i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">; i </span><span style="color: #000000"><</span><span style="color: #000000"> </span><span style="color: #000000">16</span><span style="color: #000000">; i</span><span style="color: #000000">++</span><span style="color: #000000">) {
 digestHexStr </span><span style="color: #000000">+=</span><span style="color: #000000"> byteHEX(digest[i]);
 }
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> digestHexStr;
 }
</span><span style="color: #008000">/**</span><span style="color: #008000">**********************************End of md5 coding algorithm***********************************************</span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #008000">/*</span><span style="color: #008000">
 * static method to get the md5 code
 * 
 * @author wensefu
 * 
 * @date 10-4-5
 </span><span style="color: #008000">*/</span><span style="color: #000000">

 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> String getMD5Code(String str) {
 MD5 md5 </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> MD5();
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> md5.getMD5ofStr(str);
 }

}</span>
</div>
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