Seal — may refer to:Legal* Seal (contract law), a legal formality for contracts and other instruments * Seal (device), an official stamp or symbol used as a means of authentication * Seal (Chinese), a stamp used in East Asia as a form of a signature *… … Wikipedia
Cipher security summary — This article summarizes publicly known attacks against ciphers. Note that not all entries may be up to date. Table color key No known successful attacks Theoretical break Attack demonstrated in practice The Best attack column lists the complexity … Wikipedia
seal — Synonyms and related words: John Hancock, OK, X, accept, acceptance, accredit, affirm, affirmance, affirmation, agree on terms, amen, approbation, approval, approve, aroma, assurance, assure, attest, attestation, attribute, authenticate,… … Moby Thesaurus
cipher — Synonyms and related words: Aesopian language, Babel, Greek, John Hancock, X, a nobody, a nothing, add, algebraize, allegory, alphabetic character, argot, aught, autograph, babble, binary digit, bit, break, calculate, cant, cast, character,… … Moby Thesaurus
Scream (cipher) — The Scream cipher is a word based stream cipher developed by Shai Halevi, Don Coppersmith and Charanjit Jutla from IBM.The cipher is designed as a software efficient stream cipher. The authors describe the goal of the cipher to be a more secure… … Wikipedia
Stream cipher — The operation of the keystream generator in A5/1, a LFSR based stream cipher used to encrypt mobile phone conversations. In cryptography, a stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher… … Wikipedia
New Data Seal — General First published 1975 Derived from Lucifer Cipher detail Key sizes 2048 bits Block sizes 128 bits Structure … Wikipedia
Stream-cipher — Stromverschlüsselung (engl. stream cipher) ist ein kryptographischer Algorithmus, bei dem Zeichen des Klartextes mit den Zeichen eines Schlüsselstroms einzeln (XOR bei nur zwei verschiedenen Zeichen) verknüpft werden. Der Schlüsselstrom ist eine… … Deutsch Wikipedia
Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key.[1][2] A block cipher by itself… … Wikipedia
Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… … Wikipedia
