question: public static byte [ ] hash ( String input ) { if ( ! TextUtils . isEmpty ( input ) ) { try { byte [ ] inputBytes = input . getBytes ( "UTF-8" ) ; return hash ( inputBytes ) ; } catch ( UnsupportedEncodingException e ) { Log . e ( TAG , "problem hashing \"" + input + "\" " + e . getMessage ( ) , e ) ; } } return null ; }
target:  Created SHA256 of input