title: How to encode plaintext ASCII or hex?
body: <p>If I have a given ciphertext (from CBC mode with random IV with AES) that is in hexadecimal and its plaintext that is ASCII encoded, do I need to encode that ASCII plaintext into hex before encryption? </p>
  
  <p>Plaintext is <code>"Pay Bob $100"</code><br>
  ASCII <code>080 097 121 032 066 111 098 032 036 049 048 048</code></p>
  
  <p>and I am given cipher text <code>20814804c1767293b99f1d9cab3bc3e7 ac1e37bfb15599e5f40eef805488281d</code>.</p>