C # MD5 encryption,

C # MD5 encryption,

1 using System. security. cryptography; 2 using System. text; 3 4 namespace Common 5 {6 public class Md5Helper 7 {8 public string GetMd5 (string txt) 9 {10 // create md5 object 11 MD5 md5 = MD5.Create (); 12 // convert the string into a byte array 13 byte [] bs = Encoding. UTF8.GetBytes (txt); 14 // encrypt 15 byte [] bs2 = md5.ComputeHash (bs); 16 // convert the byte array into a string 17 StringBuilder sb = new StringBuilder (); 18 for (int I = 0; I <bs2.Length; I ++) 19 {20 sb. append (bs2 [I]. toString ("X2"); // x lowercase X uppercase 21} 22 return sb. toString (); 23} 24} 25}