CERTICOM SPONSORS ICSA LABS WORKSHOP TO PROMOTE INTEROPERABILITY OF INTERNET SECURITY PRODUCTS

Leading technology companies meet to scrutinize products for IPSec/IKEv2 specifications

MISSISSAUGA, Ontario – (September 19, 2005)– In an increasingly complex wired and wireless environment, interoperability is a key concern for many organizations that integrate products from different vendors. To help address this issue, Certicom Corp. (TSX: CIC) is sponsoring the interoperability workshop on IPSec/ Internet Key Exchange Version 2 (IKEv2) on September 19-23 in Toronto, Canada. The five-day event will give development teams from 12 organizations an opportunity to test each other's products with their own to identify potential interoperability issues and to agree on solutions.

During this workshop, which is led by ICSA Labs, an independent division of Cybertrust, Inc., vendors will focus on the Internet Engineering Task Force (IETF) IKEv2, a proposed protocol to exchange cryptographic keys used to encrypt data over an IP Security (IPSec) tunnel.

"With Certicom's deep security expertise and experience with standards, we look forward to the team's contributions to the IPSec/IKEv2 workshop," said Mark Zimmerman, Technology Program Manager at ICSA Labs, the event organizer. "The candid discussions that will happen at the workshop will go a long way toward insuring future interoperability and customer confidence in the vendors' products and standards."

"These workshops are incredibly effective in identifying potential interoperability problems early on, before they reach customers. By sponsoring this workshop, Certicom is underscoring its commitment to providing standards-based and interoperable security solutions for customers," said Jim Alfred, director of product management at Certicom.

This is the second ICSA Lab workshop on IPSec/IKEv2; the first was held last February, and Certicom was a participant. For more information about the upcoming forum, visit https://www.icsalabs.com/icsa/docs/html/communities/ipsec/bakeoff/Registration_2.html

About Certicom
Certicom protects the value of your content, software and devices with government-approved security. Adopted by the National Security Agency (NSA) for classified and sensitive but unclassified government communications, Elliptic Curve Cryptography (ECC) provides the most security per bit of any known public-key scheme. As the undisputed leader in ECC, Certicom security offerings are currently licensed to more than 300 customers including General Dynamics, Motorola, Oracle, Research In Motion and Unisys. Founded in 1985, Certicom's corporate offices are in Mississauga, ON, Canada with worldwide sales headquarters in Reston, VA and offices in the US, Canada and Europe. Visit www.certicom.com

For further information, please contact:

For Certicom
Tim Cox	Brendan Ziolo
ZingPR	Certicom Corp.
(650) 369-7784	(613) 254-9267
tim@zingpr.com	bziolo@certicom.com

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Except for historical information contained herein, this news release contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially. Factors that might cause a difference include, but are not limited to, those relating to the acceptance of mobile and wireless devices and the continued growth of e-commerce and m-commerce, the increase of the demand for mutual authentication in m-commerce transactions, the acceptance of Elliptic Curve Cryptography (ECC) technology as an industry standard, the market acceptance of our principal products and sales of our customer's products, the impact of competitive products and technologies, the possibility of our products infringing patents and other intellectual property of fourth parties, and costs of product development. Certicom will not update these forward-looking statements to reflect events or circumstances after the date hereof. More detailed information about potential factors that could affect Certicom's financial results is included in the documents Certicom files from time to time with the Canadian securities regulatory authorities.

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