Walter Davis adds strong industry knowledge and technical expertise

Mississauga, Ontario (April 26, 2005) – Certicom Corp. (TSX: CIC), the authority for strong, efficient cryptography, today announced the appointment of Walter Davis to its board of directors. Mr. Davis is a veteran of the communications industry and played a pivotal role in the early adoption of Elliptic Curve Cryptography (ECC).

“Walter Davis brings a wealth of technical expertise combined with strong industry knowledge to the board,” said Bernard Crotty, Chairman of the Board at Certicom. “We expect his experience and insight will make a positive contribution to Certicom on behalf of our shareholders.”

Mr. Davis recently retired as Senior Vice President of Motorola, Inc. During his 39 years with Motorola, Mr. Davis held progressively senior positions involved with the development of portable radio communications equipment, computer and security architectures, and circuit applications. His most recent position was Director of the Advanced Consumer Systems Research Laboratories at Motorola Labs. He holds 77 issued U.S. patents in the fields of semiconductor and communications technology, and has served on two National Academy of Science Advisory Committees, advising the U.S. Army on techniques for reducing the power drain of portable electronic equipment. Mr. Davis was presented with the ECC Visionary Award at the first annual Certicom ECC Conference in November of 2004, in recognition of his pioneering work in ECC.

Mr. Davis received his Bachelor of Electrical Engineering from the Illinois Institute of Technology in 1963 and his Master of Electrical Engineering from the same school in 1964. He received an Honorary Doctor of Arts degree from Florida Atlantic University in 1995.

The appointment of Mr. Davis brings the total number of directors to eight.

About Certicom
Certicom Corp. (TSX:CIC) is the authority for strong, efficient cryptography required by software vendors and device manufacturers to embed security in their products. Adopted by the U.S. government’s National Security Agency (NSA), Certicom technologies for Elliptic Curve Cryptography (ECC) provide the most security per bit of any known public key scheme, making it ideal for constrained environments. Certicom products and services are currently licensed to more than 300 customers including Motorola, Oracle, Research In Motion, Terayon, Texas Instruments and Unisys. Founded in 1985, Certicom is headquartered in Mississauga, ON, Canada, with offices in Ottawa, ON; Reston, VA; San Mateo, CA; and London, England. Visit www.certicom.com.

For further information, please contact:

Investors and Analysts Media  
Hervé Séguin Brendan Ziolo  
Chief Financial Officer Director of Marketing  
(905) 501-3827 (613) 254-9267  
hseguin@certicom.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.