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CCM6 IEEE 802.16e (WiMAX) AES Core

General Description

Implementation of the new WLAN security standard (802.16e) requires the NIST standard AES cipher in CTR and CBC modes (a.k.a. CCM) for encryption and message authentication. The CCM6 AES core is tuned for 802.16e applications. The core contains the base AES core AES1 and is available for immediate licensing.
The design is fully synchronous and available in both source and netlist form.

Key Features

Small size: from 8,900 ASIC gates at 802.16 data speeds
Completely self-contained: does not require external memory
Includes encryption, decryption, key expansion and data interface
Support for Counter Mode Encryption (CTR) operation and CCM extensions (Counter Mode with CBC MAC)
Support for CMAC and MBS-CTR modes
Flow-through design with header parsing
Test bench provided
LRW-AES Applications
Storage encryption
Pin Description
CLK Input   Core clock signal
RESET Input   Core reset signal
MODE Input   Operation mode of the core
START Input   HIGH starting input data processing
READ Output   Read request for the input data byte
DATA_VALID Input   HIGH when valid data byte present on the input
WRITE output   Write to the output interface
OUT_READY Input   HIGH when output interface is ready to accept data byte
D[7:0] Input   Input Data
Q[7:0] Output   Output Data
DONE Output   Data processing completed
Function Description
The Advanced Encryption Standard (AES) algorithm is a new NIST data encryption standard as defined in the http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf

The core is designed for flow-through operation, with byte-wide input and output interfaces. CCM6 key precedes the frame in the flow of data. CCM6 supports CCM and MBS-CTR modes for both encryption and decryption, and CMAC authentication.

Implementation Results
Area Utilization and Performance

Representative area/resources figures are shown below.

TSMC 0.13 G 24,763 gates 150 MHz 960 Mbps
TSMC 0.13 G 11,861 gates 250 MHz 800 Mbps
Export Permits
US Bureau of Industry and Security has assigned the export control classification number 5E002 to our AES core. The core is eligible for the license exception ENC under section 740.17(A) and (B)(1) of the export administration regulations. See the licensing basics page, for links to US government sites and more details.

HDL Source Licenses

Synthesizable Verilog RTL source code
Test bench (self-checking)
vectors for testbenches
Expected results
User Documentation

Netlist Licenses

Post-synthesis EDIF
Testbench (self-checking)
vectors for testbenches
Expected results
Contact Information
IP Cores, Inc.
3731 Middlefield Rd.
Palo Alto, CA 94303, USA
Phone: +1 (650) 815-7996
E-mail: [email protected]