Grain-128a: a new version of Grain-128 with optional authentication. (12th December 2011)

• Record Type: Journal Article
• Authors: ?gren, Martin; Hell, Martin; Johansson, Thomas; Meier, Willi
• Is Part Of: International journal of wireless and mobile computing. Volume 5:Number 1(2011)
• Page Start: 48
• Page End: 59
• Publication Date: 2011-12-12
• Subjects: Grain-128a -- Grain-128 -- stream cipher -- cryptographic primitive -- hardware attractive -- lightweight -- message authentication -- MAC -- medium access control -- security -- cryptography; Mobile computing -- Periodicals; Wireless communication systems -- Periodicals; 004.6
• Languages: English
• ISSNs: 1741-1084

Abstract

A new version of the stream cipher Grain-128 is proposed. The new version, Grain-128a, is strengthened against all known attacks and observations on the original Grain-128, and has built-in support for optional authentication. The changes are modest, keeping the basic structure of Grain-128. This gives a high confidence in Grain-128a and allows for easy updating of existing implementations.