Complete Communications Engineering

BUFFALO, N.Y., Nov. 17 /PRNewswire/ — VOCAL Technologies, Ltd., a leading developer of software and hardware solution for the communications industry, announces the availability of an 802.11i Counter Mode/CBC-MAC Protocol (CCMP) hardware engine.

The 802.11i Counter mode/CBC-MAC Protocol (CCMP) offers encryption and message authentication based on the Advanced Encryption Standard (AES). CCMP uses the Counter mode (CTR) in AES for data encryption and the Cipher Block Chaining-Message Authentication Code (CBC-MAC) in AES for message integrity.

VOCAL’s CCMP hardware engine comes in two forms, a pure RTL implementation ideal for integrated 802.11i and a general AES hardware core that supports CTR and CBC-MAC encryption modes that can be integrated easily into an embedded processor.

For an 802.11i solution, the target rate of 54 Mbps requires approximately 27k gates (9K logic, 4K RAM, 14K SBOX ROMS). The stream is encrypted or decrypted at 6.4 bits per cycle which requires ~8.5 million MIPS processor cycles for a 54 Mbps data rate.


128-bit key(cycles/128-bit block)



CCMP 128-bit co-processor

20 = 6.4 bits/cycle



Advantages of VOCAL’s solution include flexibility through the ability to program and configure the CCMP-AES solution, engineering experience and the expertise needed to integrate individual modules to make a complete low cost solution.

VOCAL invites you to visit its booth at WiFi-Planet Show in San Jose on Dec 3rd.

About VOCAL Technologies, Ltd.

Founded in 1986, VOCAL Technologies, Ltd., is an industry leader in providing innovative telecommunications and networking solutions to a large base of international OEM customers. VOCAL has the industry’s largest data and telephony software modem and 802.11a/b/g/e/i libraries and supports all major platforms including Analog Devices, CEVA cores, MIPS, and TI.