For all questions assume that plaintext message length is an exact multiple of block size.

1.) This question is If the block size is 64 bits, and the message X=m₁m₂ consists of 2 blocks m₁ and m₂. If message X is the tenth message to be encrypted using CBC with the same key, designated as k, what is the size of the cipher text?

2.) Same as question 1 but instead use Chained CBC instead of CBC