Cryptography

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Title: Cryptography

Essay Details:

Subject: Technology

Author: Matthew R

Date: February 13, 2017

Level: University

Grade: A

Length: 3 / 611

Essay text:

Helix is a high-speed stream cipher with a built-in MAC function-ality. 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. Keywords: Stream cipher, MAC, authentication, encryption. 1 Introduction Securing data in transmission is the most common real-life cryptographic prob-lem. Basic security services require both encryption and authentication...

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