翻訳と辞書
Words near each other
・ cruft together
・ crufted
・ crumb
・ crunch
・ cruncha cruncha cruncha
・ crunchy
・ cryppie
・ crypt
・ crypt breakers workbench
・ cryptanalysis
cryptography
・ cryptology
・ crystal
・ cs-4
・ cs-prolog
・ cs/pcode
・ cs/qcode
・ csci
・ cscw
・ csg


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

cryptography : FOLDOC
cryptography
The practise and study of encryption and decryption - encoding data so that it can only be decoded by specific individuals. A system for encrypting and decrypting data is a cryptosystem. These usually involve an algorithm for combining the original data ("plaintext") with one or more "keys" - numbers or strings of characters known only to the sender and/or recipient. The resulting output is known as "ciphertext".
The security of a cryptosystem usually depends on the secrecy of (some of) the keys rather than with the supposed secrecy of the algorithm. A strong cryptosystem has a large range of possible keys so that it is not possible to just try all possible keys (a "brute force" approach). A strong cryptosystem will produce ciphertext which appears random to all standard statistical tests. A strong cryptosystem will resist all known previous methods for breaking codes ("cryptanalysis").
See also cryptology, public-key
, public-key


スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.