Overview
AES-CCM is an authenticated encryption algorithm designed to provide both authentication and
privacy. Developed by Russ Housley, Doug Whiting and Niels Ferguson, CCM is based on two
"classic" block cipher modes in combination; Counter Mode (for the encryption) and CBC-MAC
(for the authentication). AES-CCM is used in many recent standards such as 802.11, 802.15
and 802.16 wireless, plus the IEEE 1619.1 standard for tape storage, and is a very compelling
choice for many applications.
Helion AES-CCM Solutions
Helion offer a broad selection of AES-CCM 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 AES-CCM cores are available in versions for use in ASIC,
Actel, 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.
| Core name |
8-bit wide I/O |
32-bit wide I/O |
128-bit wide I/O |
| 12-cycle AES-CCM |
N/A |
N/A |
 |
| 24-cycle AES-CCM |
|
N/A |
|
| 48-cycle AES-CCM |
|
|
N/A |
| 96-cycle AES-CCM |
|
|
N/A |
The table above shows the selection of standard AES-CCM solutions currently available
from Helion. The core name reflects the nominal number of clock cycles taken to encrypt
or decrypt each 16-byte block of information with a 128-bit key; so for example, the 12-cycle
core processes each 128-bit AES block in 12 clock cycles, and has a throughput of
10.66Mbps per MHz.
The table also shows that we can offer various interface widths for each of our
AES-CCM cores, so that the most appropriate can be chosen for each given application.
The table entries marked "N/A" are not available, as they simply don't make sense
due to throughput or area constraints.
Other variants are also available, for example we have a special 11-cycle solution
specifically designed for use in ASIC, and some lower-area mid-rate solutions not
shown which are for use in FPGA.
Helion's AES-CCM cores can also support the CCM* algorithm. This is a slightly
modified version of the original standard, offering encryption-only and
authentication-only modes, and is as used in some of the 802.15 standards
(e.g. 802.15.4 / ZigBee™).
Helion was the first company in the world to offer a commercial AES-CCM solution
back in 2002, so by now these cores are mature and extremely well proven in production
silicon. Since launch they have been further refined to make them even more efficient
and easy to use.
To find out how these AES-CCM solutions can be used in your particular application,
please contact Helion so that we can discuss the options in more detail.
Measured Area and Performance
48-cycle 128-bit key version - for low/mid rate applications
| TARGET |
TYPICAL THROUGHPUT |
AREA |
ASIC
(0.13um CMOS) |
>800 Mbps |
<19k gates |
Actel FPGA
(ProASIC3 -2) |
>320 Mbps |
3366 tiles
5 RAMs |
Altera FPGA
(Stratix 2 -3) |
>630 Mbps |
773 ALUTs
5 M4K RAMs |
Xilinx FPGA
(Spartan 3 -5) |
>400 Mbps |
480 slices
5 BlockRAMs |
Xilinx FPGA
(Virtex 4 -11) |
>670 Mbps |
480 slices
5 BlockRAMs |
Xilinx FPGA
(Virtex 5 -3) |
>760 Mbps |
321 slices
0 BlockRAMs |
Remember that this is just one example from a suite of many AES-CCM solutions
we have available, so if you are looking for smaller CCM cores, or faster CCM cores,
please check out the datasheet below, or contact us for full information.
Datasheets
For full details of the most popular Helion AES-CCM cores, please download the datasheet appropriate
to your target technology.
Click here for the ASIC core data sheet (PDF format)
Click here for the Actel FPGA core data sheet (PDF format)
Click here for the Altera FPGA core data sheet (PDF format)
Click here for the Xilinx FPGA core data sheet (PDF format)
Contact
For more detailed information on these 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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