SHA-256 is the recommended stronger alternative to SHA-1. See FIPS PUB 180-4 for implementation details.

Either by using a dedicated library or implementing the algorithm in your language, show that the SHA-256 digest of the string "Rosetta code" is: 764faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf

import haxe.crypto.Sha256;
 
class Main {
  static function main() {	
    var sha256 = Sha256.encode("Rosetta code");
    Sys.println(sha256);
  }
}