public static String calculateMD5 ( String string ) { byte [ ] hash ; try { hash = MessageDigest . getInstance ( "MD5" ) . digest ( string . getBytes ( "UTF-8" ) ) ; } catch ( NoSuchAlgorithmException e ) { throw new RuntimeException ( "Huh, MD5 should be supported?" , e ) ; } catch ( UnsupportedEncodingException e ) { throw new RuntimeException ( "Huh, UTF-8 should be supported?" , e ) ; } StringBuilder hex = new StringBuilder ( hash . length * 2 ) ; for ( byte b : hash ) { int i = ( b & 0xFF ) ; if ( i < 0x10 ) hex . append ( ' ' ) ; hex . append ( Integer . toHexString ( i ) ) ; } return hex . toString ( ) ; }
Calculate the MD5 of a given String