Quavium - A New Stream Cipher Inspired by Trivium
2012; Academy Publisher; Volume: 7; Issue: 5 Linguagem: Inglês
10.4304/jcp.7.5.1278-1283
ISSN1796-203X
AutoresYun Tian, Gongliang Chen, Jianhua Li,
Tópico(s)graph theory and CDMA systems
ResumoThis paper is concerned with an extensive form of stream cipher Trivium. Trivium is extended to a scalable form by the coupling connection of Trivium-like shift registers. The characteristic polynomial of k Trivium-like shift registers in coupling connection is proved to have a factor of (1+ x ) k . So k -order primitive polynomials are defined in this paper. As the main contribution, a new stream cipher Quavium is proposed based on 4-round Trivium-like shift registers and k -order primitive polynomials. Quavium can also be used with 3 rounds. Experimental results show that Quavium is nearly as fast as Trivium and 3-round Quavium has a better performance.
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