**cipher** — cipherable, adj. cipherer, n. /suy feuhr/, n. 1. zero. 2. any of the Arabic numerals or figures. 3. Arabic numerical notation collectively. 4. something of no value or importance. 5. a person of no influence; nonentity. 6. a secret method of… … Universalium

**cipher sequence** — noun see cipher component … Useful english dictionary

**Vigenère cipher** — The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. It is a simple form of polyalphabetic substitution.The Vigenère (pronEng|ˌviːdʒɪˈnɛəɹ, veedj ih nair )… … Wikipedia

**Cryptanalysis of the Lorenz cipher** — The Lorenz SZ machines had 12 wheels each with a different number of cams (or pins). Wheel number 1 2 3 4 5 6 7 … Wikipedia

**Caesar cipher** — The action of a Caesar cipher is to replace each plaintext letter with one fixed number of places down the alphabet. This example is with a shift of three, so that a B in the p … Wikipedia

**Transposition cipher** — In cryptography, a transposition cipher is a method of encryption by which the positions held by units of plaintext (which are commonly characters or groups of characters) are shifted according to a regular system, so that the ciphertext… … Wikipedia

**Intel Cascade Cipher** — Infobox block cipher name = Intel Cascaded Cipher caption = designers = Ernie Brickell, Gary Graunke publish date = derived from = AES, Serpent derived to = related to = certification = key size = 128 bits block size = 128 bits structure = AES… … Wikipedia

**Rabbit (cipher)** — Rabbit is a high speed stream cipher first presented [M. Boesgaard, M. Vesterager, T. Pedersen, J. Christiansen, O. Scavenius. Rabbit: A High Performance Stream Cipher. Proc. FSE 2003. Springer LNCS 2887, pp. 307 329 (… … Wikipedia

**XOR cipher** — In cryptography, a simple XOR cipher is a relatively simple encryption algorithm that operates according to the principles::A oplus 0 = A,:A oplus A = 0,:(B oplus A) oplus A = B oplus 0 = B,where oplus denotes the exclusive disjunction (XOR)… … Wikipedia

**Four-square cipher** — The Four square cipher is a manual symmetric encryption technique. It was invented by famous French cryptographer Felix Delastelle.The technique encrypts pairs of letters ( digraphs ), and thus falls into a category of ciphers known as… … Wikipedia