학술저널
ON A CHARACTERIZATION OF SECURE TRINOMIALS ON Z2n
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 29, No. 4
-
2016.11573 - 584 (12 pages)
- 2
Invertible transformations over n-bit words are essen-tial ingredients in many cryptographic constructions. Such invert-ible transformations are usually represented as a composition of simpler operations such as linear functions, S-P networks, Feistel structures and T-functions. Among them T-functions are probably invertible transformations and are very useful in stream ciphers. In this paper we will characterize a secure trinomial on Z2n which generates an n-bit word sequence without consecutive elements of period 2n .
1. Introduction
2. A trinomial with a single cycle property
3. Secure trinomials
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