DocumentCode :
2592545
Title :
Power attack resistant cryptosystem design: a dynamic voltage and frequency switching approach
Author :
Yang, Shengqi ; Wolf, Wayne ; Vijaykrishnan, N. ; Serpanos, D.N. ; Xie, Yuan
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
fYear :
2005
fDate :
7-11 March 2005
Firstpage :
64
Abstract :
A novel power attack resistant cryptosystem is presented. Security in digital computing and communication is becoming increasingly important. Design techniques that can protect cryptosystems from leaking information have been studied by several groups. Power attacks, which infer program behavior from observing power supply current into a processor core, are important forms of attack. Various methods have been proposed to counter the popular and efficient power attacks. However, these methods do not adequately protect against power attacks and may introduce new vulnerabilities. We address a novel approach against power attacks, i.e., dynamic voltage and frequency switching (DVFS). Three designs, naive, improved and advanced implementations, have been studied to test the efficiency of DVFS against power attacks. A final advanced realization of our novel cryptosystem is presented; it achieves enough high power trace entropy and time trace entropy to block all kinds of power attacks, with 27% energy reduction and 16% time overhead for DES encryption and decryption algorithms.
Keywords :
cryptography; embedded systems; entropy; telecommunication security; DES decryption algorithms; DES encryption algorithms; cryptoprocessor; differential power analysis; digital communication security; digital computing security; dynamic voltage-frequency switching approach; embedded systems; energy reduction; power attack resistant cryptosystem design; power trace entropy; time overhead; time trace entropy; Communication switching; Counting circuits; Cryptography; Current supplies; Entropy; Frequency; Information security; Power supplies; Protection; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design, Automation and Test in Europe, 2005. Proceedings
ISSN :
1530-1591
Print_ISBN :
0-7695-2288-2
Type :
conf
DOI :
10.1109/DATE.2005.241
Filename :
1395794
Link To Document :
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