It depends on the cipher used. Some can be attacked and broken in minutes; others are unbreakable in practise; and some can never be broken.
calculate, estimate, break, figure, resolve, solve, count, unravel
I can't find an eight letter word for those letters, I can make six letter words: cipher, copier, and heroic.
The cipher made the intent of the message difficult to understand.
It is cipher.
code.
Verb.
The anagram is "cipher."
decipher, cipher
Other names for an anagram are word scramble, word puzzle, or cipher.
There are only a couple different synonyms for the word code. These synonyms include cipher, key, hieroglyphics, and the word cryptogram.
cipherical objects are a great way to go!
The Beale cipher is a form of book cipher where a key document, such as an existing book, is used to encode a message. Each word or phrase in the message is converted into a number that corresponds to a page, line, and word in the key document. The recipient can then use the key to decode the message by looking up the corresponding words.