Cryptology question:

Explain your approach to each problem that you do. Determine as much of the key as you can. Determine the type of cipher if you can. the method of encipherment is one of in the Caesar, multiplicative, affine, keyword, Playfair, or Hill.

You can use software :

https://sourceforge.net/projects/cryptohelper/

or

https://jcsnider.github.io/VBreaker-JS/

Question:

1. (15 points) Cryptanalyze:

pnmmn tayhn xwatb ptjke xynhj kkcwx kxvkk expxt gbxjj xjcyt hxzlm thhck chjkx ddnbz pexbe xtbtm rsxwk exkex bvlhh xbkhc kchat venbx jnbke xbnbx kxxbk pxbkn xj

The word weaknesses appears in the plaintext.