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 defines the AES-based cipher system, which is operated on 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 400Mbps and 243 Mbps throughput respectively at 50 MHz frequency, which are targeted to Xilinx Vertex FPGA device.
Original language | English |
---|---|
Pages (from-to) | III645-III648 |
Journal | Proceedings - IEEE International Symposium on Circuits and Systems |
Volume | 3 |
State | Published - 2004 |
Event | 2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada Duration: 23 May 2004 → 26 May 2004 |