Options
The Security Level Of Two Xored-based A5 Crypto System
Journal
International Conference on Research and Education in Mathematics (ICREM).
Date Issued
2011
Author(s)
Nur Hafiza Zakaria
Kamaruzzaman Seman
Ismail Abdullah
Abstract
A5/1 is a stream cipher used to supply over the air communication privacy in the GSM cellular telephone standard. It was at first kept secret, but became open knowledge through leaks and reverse engineering. The purpose of this paper is to compare the security level of two (2) XORed-based A5 crypto systems. Five (5) statistical tests were used to test the strength of the algorithm. Both of the proposed modified XORed-based A5/1 algorithms successfully passed the five (5) statistical tests.
Subjects