cipher security

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• 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

• Cipher — For other uses, see Cipher (disambiguation). Edward Larsson s rune cipher resembling that found on the Kensington Runestone. Also includes runically unrelated blackletter writing style and pigpen cipher. In cryptography, a cipher (or cypher) is… …   Wikipedia

• Security through obscurity — In cryptography and computer security, security through obscurity (sometimes security by obscurity) is a controversial principle in security engineering, which attempts to use secrecy (of design, implementation, etc.) to provide security. A… …   Wikipedia

• Security and safety features new to Windows Vista — There are a number of security and safety features new to Windows Vista, most of which are not available in any prior Microsoft Windows operating system release.Beginning in early 2002 with Microsoft s announcement of their Trustworthy Computing… …   Wikipedia

• Cipher (newuniversal) — Not to be confused with Cipher (comics) or Cypher (comics). Cipher Cover to newuniversal: shockfront #2, Marvel Publishing, circa 2008. Publication information …   Wikipedia

• Cipher suite — A cipher suite is a named combination of authentication, encryption, and message authentication code (MAC) algorithms used to negotiate the security settings for a network connection using the Transport Layer Security (TLS) or Secure Sockets… …   Wikipedia

• Cipher Suite — Eine Cipher Suite (frei übersetzbar als „Chiffrensammlung“) ist eine standardisierte Sammlung kryptographischer Algorithmen. Ein Beispiel dafür ist die NSA Suite B Cryptography, die Algorithmen festlegt, die für die Arbeit im Regierungsumfeld… …   Deutsch 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

• Transport Layer Security — (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols that provide secure communications on the Internet for such things as web browsing, e mail, Internet faxing, instant messaging and other data transfers. There are… …   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

• 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