Overview
AES-OCB is an authenticated encryption algorithm designed to provide both authentication and
privacy. Developed by Phillip Rogaway, its major advantage over competing algorithms is that
it only requires one block cipher encryption for each block of message data, where alternatives
like AES-CCM require two encryptions. OCB also offers the possibility of using pipelining and
parallel processing techniques to multiply its performance for high throughput applications.
On the downside, OCB requires a true AES decryption function for decryption, which makes an
equivalent implementation both larger and slower than CCM. It is also the subject of
multiple intellectual property claims.
OCB mode could be used wherever a combined encryption and authentication algorithm is required,
and is listed as an optional method in the IEEE 802.11 wireless security standard.
Helion AES-OCB Solutions
Helion offer a broad selection of AES-OCB solutions, which can be chosen according to
your exact requirements. This allows the user to have a very well matched solution,
without having to compromise in terms of area or performance.
These high performance cores are available in versions for use in ASIC,
Altera and Xilinx FPGA, and in common with all Helion IP cores they
have been designed with each technology firmly in mind to yield the very
best and most efficient results.
To find out how these AES-OCB solutions can be used in your particular application,
please contact Helion so that we can discuss the options in more detail.
Contact
For more detailed information on this or any of our other products and services,
please feel free to email us at
helioncores@heliontech.com and we will be pleased to discuss how we can assist
with your individual requirements.
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