Helix: Fast Encryption and Authentication in a Single Cryptographic Primitive
N. Ferguson, D. Whiting, B. Schneier, J. Kelsey, S. Lucks, and T. Kohno
Fast Software Encryption, 10th International Workshop, FSE 2003, Lund, Sweden, February 24-26, 2003, Revised Papers, Lecture Notes in Computer Science 2887, 2003, pp. 345-362.
ABSTRACT: 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.
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