Sterling Commerce to Incorporate Certicom Trustpoint PKI Software to Enhance Security of Java-Based E-Business Applications 

DUBLIN, OH and HAYWARD, Calif., July 16, 2001 - Certicom (Nasdaq: CERT; TSE: CIC), a leading provider of mobile e-business security, and Sterling Commerce, a wholly owned subsidiary of SBC Communications (NYSE: SBC) and worldwide leading provider of e-business software and services, today announced an expanded agreement that will provide Sterling customers with extensive security options for Java-based e-business applications. 

The agreement calls for Sterling Commerce to incorporate Certicom's Trustpoint™ public-key infrastructure (PKI) product into its portfolio of e-business software and services. Trustpoint is a full-featured PKI toolkit that adds the most advanced public-key and symmetric-key security to applications written in Java. 

Today's announced agreement expands the list of Certicom solutions Sterling Commerce has integrated into their line of e-business applications. Sterling Commerce has been using Certicom's leading ECC and SSL security technologies in its CONNECT: DirectÒ products since January of 1999, providing its customers with advanced security for conducting safe and reliable e-commerce transactions across the Internet and other global networks. 

"Security is an integral component in all e-business solutions," said Cathy Kingeter, vice president of Integration Solutions with Sterling Commerce. "Certicom's Trustpoint PKI solution uses open standards as well as efficient elliptic curve cryptography (ECC) technology, and fast and small certificates, allowing for flexibility and interoperability." 

Sterling Commerce's software and service solutions power global e-business communities through its E-Marketplace, E-Business Integration and E-Business Consulting solutions. 

"Sterling Commerce is an early pioneer and current leader in e-commerce and has a long history of success in the file-based integration middleware space through its CONNECT products," said Richard Depew, executive vice president of Certicom. "Our expanding relationship with Sterling Commerce is testimony to the strong and growing support from industry-leading companies for Certicom's security solutions for all e-commerce and m-commerce security needs." 

About Sterling Commerce
Sterling Commerce Inc., (www.sterlingcommerce.com), is a worldwide leading provider of e-business solutions for the Global 5000 and their commerce communities. The company provides a comprehensive suite of software and services designed to support the interaction of customers, suppliers, business partners and employees through its e-marketplace, e-business integration and e-business service solutions. 

Sterling Commerce Inc. is a subsidiary of SBC Communications Inc. (www.sbc.com), a global communications leader. Through its subsidiaries' trusted brands - Southwestern Bell, Ameritech, Pacific Bell, SBC Telecom, Nevada Bell, SNET and Sterling Commerce - and world-class network, SBC and its affiliated companies provide a full range of voice, data, networking and e-business services, including local and long-distance voice, high-speed Internet access and data transport, voice and data network integration, software and process integration, Web site and application hosting, e-marketplace development, paging and messaging, as well as cable and satellite television, and directory advertising and publishing. In the United States, the company currently has 61.3 million access lines and is undertaking a national expansion program that will bring SBC service to the nation's top 50 markets. SBC has a 60 percent equity interest in Cingular Wireless, its joint venture with BellSouth, which serves more than 20 million wireless customers. Internationally, SBC has telecommunications investments in 17 countries and has annual revenues that rank it among the largest Fortune 500 companies. Sterlingcommerce.net is a trademark of Sterling Commerce, Inc. 

About Certicom
Certicom is a leading provider of information security software and services, specializing in solutions for mobile e-business. The company's products and services are specifically designed to address the challenges of a wireless data environment. Certicom's solutions incorporate its efficient encryption technology and are based on industry standards for information security that utilize public key cryptography. Certicom's products are currently licensed to more than 200 customers including Cisco Systems, Inc., Handspring Inc., Motorola, Inc., Nortel Networks, Openwave Systems, Inc., Palm, Inc., QUALCOMM, Inc., Research In Motion Ltd., Sony International (Europe) GmbH, and VeriSign Inc. Certicom's headquarters and worldwide sales and marketing operations are based in the Silicon Valley in Hayward. For more information, visit Certicom's Web site at http://www.certicom.com

Certicom and Trustpoint are trademarks of Certicom Corp. All other companies and products listed herein are trademarks or registered trademarks of their respective holders. 

Except for historical information contained herein, this press 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, the number of options tendered by employees for exchange under the proposed plan, future stock price fluctuations, the impact of issuing shares of the company's Common Stock, 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 Securities and Exchange Commission and Canadian securities regulatory authorities. 

For further information, please contact: 

Lorraine Kauffman Valerie Nixon
Certicom Corp. Sterling Commerce
(510) 780-5417 (614) 791-6474
lkauffman@certicom.com valerie_nixon@stercomm.com