Title :
Differential Power Analysis Attack on SMS4 Block Cipher
Author :
Bai, Xuefei ; Guo, Li ; Li, Tie
Author_Institution :
Dept. of Electron. Sci. & Technol., Univ. of Sci. & Technol. of China, Hefei
Abstract :
SMS4 is a 128-bit block cipher used in the WAPI standard for protecting data packets in WLAN. In this paper, a differential power analysis attack method on every byte of round keys is presented. Through this attack, the round keys of the last four rounds of SMS4 can be obtained, and then the 128- bit encryption key can be found out. The results of simulation experiments indicate that this attack is effective and practical on the SMS4 cipher.
Keywords :
cryptography; data privacy; message authentication; telecommunication security; wireless LAN; 128-bit encryption key; SMS4 block cipher; WAPI standard; differential power analysis attack; privacy infrastructure; wireless LAN; Authentication; Cryptography; Data security; ISO standards; Iterative algorithms; Performance analysis; Privacy; Protection; Standards organizations; Wireless LAN;
Conference_Titel :
Circuits and Systems for Communications, 2008. ICCSC 2008. 4th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1707-0
Electronic_ISBN :
978-1-4244-1708-7
DOI :
10.1109/ICCSC.2008.136
