Not in the least reasons being that cryptography is the creation of cipher and code methodologies, and cryptanalysis is the skill of turning encrypted text into plain text. While they may go hand in hand, they are not necessarily the same thing.
However, cryptanalysis still somewhat relies on the person doing the code breaking to either be a native or fluent speaker of the language that is encrypted. For example, if you are doing analysis on a simple substitution cipher in English, it would help to know that the most common letters are RSTLN and E, as well as the most common words/conjunctions. Without that basic knowledge, the length of time it would take would be nearly as long as learning the language from scratch.
Also, French has a very different sentence structure than English, and uses double verbs and "out of order" when compared to English.