C # MD5 value calculation

C # Compute MD5

  　　　　 /// <summary>        ///MD5 Calculation/// </summary>        /// <param name= "str" >string to be computed for MD5</param>        /// <returns>a 32-bit string</returns>         Public Static stringGETMD5 (stringstr) {            varMD5 = MD5. Create ();//or var md5 = new MD5CryptoServiceProvider ();            varBytvalue =Encoding.UTF8.GetBytes (str); varBythash =Md5.computehash (Bytvalue); varSB =NewStringBuilder (); foreach(varBinchBythash) {sb. Append (B.tostring ("X2")); }            returnsb.        ToString (); }

Ps:tostring ("X2") explanation

The uppercase x:tostring ("X2") is converted to uppercase 16 binary.

The lowercase x:tostring ("X2") is converted to lowercase 16 binary.

2 indicates the output two bits, the insufficient 2 bits of the front complement 0, such as 0x0A if not 2, will only output 0xA

C # MD5 value calculation