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Erschienen in:
2003 | OriginalPaper | Buchkapitel
Helix: Fast Encryption and Authentication in a Single Cryptographic Primitive
verfasst von : Niels Ferguson, Doug Whiting, Bruce Schneier, John Kelsey, Stefan Lucks, Tadayoshi Kohno
Erschienen in: Fast Software Encryption
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Helix is a high-speed stream cipher with a built-in MAC functionality. On a Pentium II CPU it is about twice as fast as Rijndael or Twofish, and comparable in speed to RC4. The overhead per encrypted/authenticated message is low, making it suitable for small messages. It is efficient in both hardware and software, and with some pre-computation can effectively switch keys on a per-message basis without additional overhead.