Implementation of hash SHA1 and MD5 under Java/android

Android MD5 encryption is identical to the J2SE platform because the Android platform supports java.security.MessageDigest this package. is actually exactly the same as the J2SE platform.

Algorithm Signature:

[Java]View Plaincopy

1. String GetMD5 (String val) throws NoSuchAlgorithmException

Enter a string (text that needs to be encrypted) to get an encrypted output string (encrypted text)

[Java]View Plaincopy

2. Package com.tencent.utils;
6. Import Java.security.MessageDigest;
8. Import java.security.NoSuchAlgorithmException;
10. /**
12. * GETMD5 (String) method available externally
14. * @author Randyjia
16. *
18. */
20. Public class MD5 {
24. public static string GetMD5 (string val) throws nosuchalgorithmexception{
26. MessageDigest MD5 = messagedigest.getinstance ("MD5");
28. Md5.update (Val.getbytes ());
30. byte[] m = md5.digest (); //Encryption
32. return getString (m);
34. }
36. private static String getString (byte[] b) {
38. StringBuffer sb = new StringBuffer ();
40. For (int i = 0; i < b.length; i + +) {
42. Sb.append (B[i]);
44. }
46. return sb.tostring ();
48. }
50. }

SHA-1

        NULL ;         Try {            digester  = messagedigest.getinstance ("SHA-1");         Catch (nosuchalgorithmexception e) {            //  TODO auto-generated catch block             E.printstacktrace ();        }        Digester.update (calhashdata);         byte [] Hashd = Digester.digest ();    

Implementation of hash SHA1 and MD5 under Java/android