Having Trouble Correctly Encrypting Email Addresses Using DES

Question

Hi, I am having some problems when I try to encrypt email addresses using DES encryption. I can't really find a solution to the problem. Any help would be appreciated.
//String Encryptor. Takes a string and returns it's equivalent DES encryption.
    private String encrypter(String str)
        try
            byte[] word = str.getBytes("UTF8");
            byte[] encryptedString = this.encrypt.doFinal(word);
            return new String(encryptedString);
        catch(Exception e)
            e.printStackTrace();
        return null;
//String decryptor: Takes an encrypted string and returns its equivalent DES decrypted string
    private String decrypter(String str)
        try
            byte[] encryptedString = str.getBytes();
            byte[] word = this.decrypt.doFinal(encryptedString);
            return new String(word);
        catch (Exception e)
            e.printStackTrace();
        return null;
        }This is a simple input and output:
Input: [email protected]
Out: ‰Qœnõœ £¥Å¼ˆ'v(úR»ñ]{&õa?´n±                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

Answer 1

You don't say what your problem is but this code is an example of the number 1 problem reported in this forum. String is not a suitable container for binary data and encrypted data returned by          byte[] encryptedString = this.encrypt.doFinal(word);
  is definitely binary data and should not be converted to a String using new String(encryptedString);The basic problem is that for the majority of character encodings the transformation
bytes -> String  -> bytesdoes not produced the original bytes.