NDLI: Security enhancements in GSM cellular standard

Content Provider	IEEE Xplore Digital Library
Author	Ahmad, M. Izharuddin
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Eng., AMU, Aligarh (Ahmad, M.; Izharuddin)
Abstract	GSM is widely used cellular standard in the world. GSM uses A5/x algorithms to secure the information sent over the air interface. A5/1 is a strong encryption algorithm among all A5/x algorithms. However, recent studies show that it has security flaws in its architecture, owing to which it is susceptible to several cryptographic attacks. This paper presents an enhanced scheme of A5/1 algorithm to improve the level of security provided by the GSM. Proposed scheme is analyzed against some cryptographic attacks and it is shown that the scheme provides more security by offering more resistance to correlation attack, algebraic attack and linear approximation attack. Moreover, the linear complexity of the enhanced cipher is quite large and makes the cipher to withstand the Berleykamp-Massey attack. It is also shown that the proposed scheme is little faster with respect to the output rate. Both the designs are coded in VHDL andP synthesized on FPGA device.
Starting Page	116
Ending Page	117
File Size	572359
Page Count	2
File Format	PDF
ISBN	9781424433278
DOI	10.1109/WCSN.2008.4772693
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-27
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	GSM Base stations linear complexity Mobile communication cryptographic attacks Communication system security security Information security Linear approximation A5/1 algorithm Cryptography Computer security Field programmable gate arrays Clocks
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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