Using MD5 for encryption in Java

Application Blog Park for a long time, has not written. Recently overtime is too tired, today is to open a door to the blog park. in order to aim, insist.

/*** Provides a method for MD5 encryption of strings. * Class Name: ETClassMD5* Author: libingbing* Creation Time:- One-1 13:10:07* Modified time:* Revision Instructions: */ Public  class ETClassMD5 {      //Encrypt token      Private   StaticString token = "Bingblee";       Private   Staticstring dealstring (Stringstring) {StringBufferStrbuffer =  NewStringBuffer (string);            return Strbuffer. Append ( token). toString ();     }       Private   Static  Char  hexdigits[] = { ' 0 ', ' 1 ', ' 2 ', ' 3 ', ' 4 ', ' 5 ', ' 6 ', ' 7 ',                ' 8 ', ' 9 ', ' A ', ' B ', ' C ', ' D ', ' E ', ' F ' };       /*** MD5 strings are encrypted, and the string is internally processed for encryption. * Method Name: md5string* Author: libingbing* Creation Time:- One-1st 13:18:25      *  @paramstring that needs to be encrypted.       *  @returnThe 32 after encryption is a summary.       */      Public  Staticstring md5string (Stringstring) { MessageDigestinstance;            Try {                 //Get an example of MD5 encryption algorithm                instance= MessageDigest. getinstance ("MD5");                //Encrypt the specified string                 instance. Update ( dealstring(string). GetBytes ());                  byte[] md5string = instance. Digest ();                 //Transmit into 16 binary number                 Char[] result =  New  Char[md5string.length* 2];//Each bit needs to be represented by two hexadecimal digits.                 int Count= 0;                 for ( int Index= 0;Index<md5string.length; Index++) {                     result[Count++] =  hexdigits [(md5string[Index] >>> 4) & 0xf]; //High four-bit                     result[ Count++] =  hexdigits [md5string[Index] & 0xf]; //Low four-bit                }                 return  NewString (result);           }  Catch(NoSuchAlgorithmExceptione) {                e. Printstacktrace ();                 return  NULL;           }     }}

Using MD5 for encryption in Java