Find the key, and then get the plain text using that key.

The following cipher text is created using Shift Cipher.

“H XBPJR IYVDU MVE QBTWZ VCLY AOL SHGF KVN”

i.        Find the key, and then get the plain text using that key.

ii.       Transform the obtained plaint text to cipher text again by using Vigenere Cipher with key word “antelop”. Show all the steps.