TWISTERπ – a framework for secure and fast hash functions Online publication date: Thu, 01-Jul-2010
by Ewan Fleischmann, Christian Forler, Michael Gorski, Stefan Lucks
International Journal of Applied Cryptography (IJACT), Vol. 2, No. 1, 2010
Abstract: In this paper we present TWISTERπ, a framework for hash functions. It is an improved version of TWISTER, a candidate of the NIST SHA-3 hash function competition. TWISTERπ is built upon the ideas of wide pipe and sponge functions. The core of this framework is a – very easy to analyse – Twister-Round providing both extremely fast diffusion as well as collision-freeness for one internal Twister-Round. The total security level is claimed to be not below 2n/2 for collision attacks and 2n for (2nd) pre-image attacks. TWISTERπ instantiations are secure against all known generic attacks. We also propose two instances TWISTERπ-n for hash output sizes n = 256 and n = 512. These instantiations are highly optimised for 64-bit architectures and run very fast in hardware and software, e.g TWISTERπ-256 is faster than SHA2-256 on 64-bit platforms and TWISTERπ-512 is faster than SHA2-512 on 32-bit platforms. Furthermore, TWISTERπ scales very well on low-end platforms.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Applied Cryptography (IJACT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook