cipher-text sequence

См. также в других словарях:

• 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

• 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

• Substitution cipher — In cryptography, a substitution cipher is a method of encryption by which units of plaintext are replaced with ciphertext according to a regular system; the units may be single letters (the most common), pairs of letters, triplets of letters,… …   Wikipedia

• Dorabella Cipher — The text of the Dorabella Cipher, in Elgar s handwriting The Dorabella Cipher is an enciphered letter written by Edward Elgar to Miss Dora Penny, which was accompanied by another dated July 14, 1897. Penny was never able to decipher it and its… …   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

• transposition cipher — noun : cipher 2a(2) * * * Cryptography. a cipher that rearranges the letters of the plain text in a different sequence. Cf. substitution cipher. [1935 40] …   Useful english dictionary

• bacon biliteral cipher — “ noun Usage: capitalized 1st B Etymology: after Francis Bacon, who proposed it : a cipher that hides a message in a cover text by representing the letters of the plaintext by different combinations of two letter forms (as italic and roman) in… …   Useful english dictionary

• transposition cipher — Cryptography. a cipher that rearranges the letters of the plain text in a different sequence. Cf. substitution cipher. [1935 40] * * * …   Universalium

• Voynich manuscript — The Voynich manuscript is a mysterious illustrated book written in an indecipherable text. It is thought to have been written between 1450 and 1520. The author, script and language of the manuscript remain unknown.Over its recorded existence, the …   Wikipedia

• Advanced Encryption Standard — Infobox block cipher name = AES caption = The SubBytes step, one of four stages in a round of AES designers = Vincent Rijmen, Joan Daemen publish date = 1998 derived from = Square derived to = Anubis, Grand Cru related to = certification = AES… …   Wikipedia

• Pseudorandom generator — In theoretical computer science, a pseudorandom generator is a deterministic method of generating a large amount of pseudorandom, or apparently random, data, from a small amount of initial random data. The initial data is commonly known as a… …   Wikipedia