What does update method of MessageDigest do and what is BASE64Encoder meant for?

Question

Following is a code that will encrypts the user String :

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.No         


        

Answer 1

Have a look at Apache Commons Codec: https://commons.apache.org/codec/

E.g.: https://commons.apache.org/codec/api-release/org/apache/commons/codec/digest/DigestUtils.html