Compatible design of CCMP and OCB AES cipher using separated encryptor and decryptor for IEEE 802.11i

Author

Jang, Ho Yung ; Shim, Joon Hyoung ; Suk, Jung Hee ; Hwang, In Cheol ; Choi, Jun Rim

Author_Institution

Sch. of Electron. Eng., Kyungpook Nat. Univ., Daegu, South Korea

Volume

3

fYear

2004

fDate

23-26 May 2004

Abstract

We propose a compatible design of CCMP and OCB AES cipher using separated encryptor and decryptor for IEEE 802.11i. IEEE 802.11i - wireless LAN security working group - CCMP mode or on OCB mode. Our design supports all these two modes of operation. In the OCB mode, it uses very small amount of memory to generate offset values. Also in the CCMP mode, it doesn´t need to update the initial vector and update only one counter value considering the packet architecture of wireless LAN. The implemented OCB and CCMP feature 400 Mbps and 243 Mbps throughput respectively at 50 MHz frequency, which are targeted to Xilinx Vertex FPGA device.

Keywords

IEEE standards; cryptography; field programmable gate arrays; wireless LAN; 243 Mbit/s; 400 Mbit/s; 50 MHz; CCMP mode AES cipher; IEEE 802.11i; OCB mode AES cipher; Xilinx Vertex FPGA device; decryptor; encryptor; packet architecture; wireless LAN security; Books; Counting circuits; Cryptography; Data privacy; Design engineering; Frequency; National security; Switches; Throughput; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on

Print_ISBN

0-7803-8251-X

Type

conf

DOI

10.1109/ISCAS.2004.1328829

Filename

1328829