AES-CBC software execution optimization
Doomun, Razvi
Doma, Jayramsingh
Tengur, Sundeep
Computer Science and Engineering, University of Mauritius, Mauritius;
This paper appears in: Information Technology, 2008. ITSim 2008. International Symposium on
Publication Date: 26-28 Aug. 2008
Volume: 1,
On page(s): 1-8
Location: Kuala Lumpur, Malaysia,
ISBN: 978-1-4244-2327-9
Digital Object Identifier: 10.1109/ITSIM.2008.4631586
Current Version Published: 2008-09-26
Abstract
With the proliferation of high-speed wireless networking, the necessity for efficient, robust and secure encryption modes is ever increasing. But, cryptography is primarily a computationally intensive process. This paper investigates the performance and efficiency of IEEE 802.11i approved Advanced Encryption Standard (AES)-Rijndael ciphering/deciphering software in Cipher Block Chaining (CBC) mode. Simulations are used to analyse the speed, resource consumption and robustness of AES-CBC to investigate its viability for image encryption usage on common low power devices. The detailed results presented in this paper provide a basis for performance estimation of AES cryptosystems implemented on wireless devices. The use of optimized AES-CBC software implementation gives a superior encryption speed performance by 12 − 30%, but at the cost of twice more memory for code size.
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