Search results
Results From The WOW.Com Content Network
Kerckhoffs viewed cryptography as a rival to, and a better alternative than, steganographic encoding, which was common in the nineteenth century for hiding the meaning of military messages. One problem with encoding schemes is that they rely on humanly-held secrets such as "dictionaries" which disclose for example, the secret meaning of words.
Caesar cipher. The action of a Caesar cipher is to replace each plaintext letter with a different one a fixed number of places down the alphabet. The cipher illustrated here uses a left shift of 3, so that (for example) each occurrence of E in the plaintext becomes B in the ciphertext. In cryptography, a Caesar cipher, also known as Caesar's ...
Literal translation Definition and use English pron a fortiori: from stronger An a fortiori argument is an "argument from a stronger reason", meaning that, because one fact is true, a second (related and included) fact must also be true. / ˌ eɪ f ɔːr t i ˈ oʊ r aɪ, ˌ eɪ f ɔːr ʃ i ˈ oʊ r aɪ / a mensa et thoro: from table and bed
𒄩 ḫa- / 𒃶 ḫe 2-has either precative/optative meaning ("let him do X", "may you do X") or affirmative meaning ("he does this indeed"), partly depending on the type of verb. If the verbal form denotes a transitive action, precative meaning is expressed with the marû form, and affirmative with the ḫamṭu form.
However, leet is also seen in situations where the argot (e.g. secret language) characteristics of the system are required, either to exclude newbies or outsiders in general, i.e., anything that the average reader cannot make sense of is valid; a valid reader should themselves try to make sense, if deserving of the underlying message.
The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid. The example key shows one way the letters can be assigned to the grid.
Book cipher. The King James Bible, a highly available publication suitable for the book cipher. A book cipher is a cipher in which each word or letter in the plaintext of a message is replaced by some code that locates it in another text, the key . A simple version of such a cipher would use a specific book as the key, and would replace each ...
Cryptophasia is the phenomenon of a language developed by twins (identical or fraternal) that only the two children can understand. [1] The word has its roots from the Greek crypto-, meaning secret, and -phasia, meaning speech. Most linguists associate cryptophasia with idioglossia, which is any language used by only one, or very few, people.