The CS5331 and CS5332 OCB-AES Simplex Encryption/Decryption cores1 are designed to provide simultaneous
data privacy and authenticity in digital broadband, wireless, and multimedia systems. These high performance
application specific silicon cores combine the efficiency of OCB authentication with the high security of Rijndael
encryption algorithms, offering a state-of-the-art authenticated-encryption scheme. The CS5331 and CS5332
cores provide the high security functionality of OCB-AES for different applications based on the importance of
required speed and size. The CS5331 is a Compact OCB-AES core and is suitable for applications like PDAs and
wireless LANs where small size is crucial. The CS5332 is a High Speed OCB-AES core and is appropriate for
applications such as wireless LAN high speed network servers where speed of operation is more critical. The
Amphion CS5331 and CS5332 cores are available in both ASIC and programmable logic versions that have been
hand crafted by Amphion to deliver high performance while minimizing power consumption and silicon area.