title: CBC - Cipher-text stealing decryption
body: <p>The graph shows CBC- with cipher-text stealing and (b) is the block length. The output cipher-text is c1,...,c4
  How is the decryption for this graph? I hope that someone can explain it to me with a graph because I checked the explanation in wikipedia and it was confusing to me. 
  <a href="https://i.stack.imgur.com/261cr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/261cr.png" alt="enter image description here"></a></p>