Diversinet: Passport One Extends Wireless Security to Smart Cards, 2.5G and 3G Devices.

Business Editors & Technology Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--Feb. 21, 2002

RSA Conference:

Passport One Ideal for Smart Card Applications such as

Financial, Telecom, Health Card and Government ID

Diversinet Corp. (NASDAQ:DVNT), a leading provider of m-commerce security infrastructure solutions, has announced the release of its Passport One next-generation digital identity solution.

Passport One represents an extension of Diversinet's leading wireless solutions for today and tomorrow's security needs. It allows enterprises, governments, and wireless operators to provide a single digital identity interface for employees, citizens, and customers across different types of mobile devices and smart cards. Passport One generates digital identity certificates using standard profiles building on Diversinet's unique thin client solution set. These certificates enable digital signatures for user authorization, authentication of the wireless application and mobile device, and confidentiality through two-way encrypted sessions.

Diversinet's wireless security technology is optimized for mainstream resource-constrained devices such as mobile phones, two-way pagers, and personal digital assistants. The Passport product suite effectively manages the user's digital certificate identity within mobile devices that are constrained by network bandwidth, memory, computational power and battery life. Passport One expands this functionality to include additional constrained devices such as smart cards, 2.5 and 3G wireless devices that require a high-level of security, while maintaining privacy of the user.

"Diversinet's core competency is in developing security solutions for constrained devices," said Hussam Mahgoub, Vice President Products, Diversinet Corp. "Passport One is ideal for a mass market implementation of PKI security in constrained environments as the solution can manage multiple devices from a single infrastructure, has bulk registration capabilities, and is highly scaleable."

Governments and enterprises are adopting smart ID cards in place of traditional paper-based identification as the cards are more durable, harder to forge, and can be used for multiple applications. A PKI-based smart card system can use PKI technology to tie together government or enterprise databases with an individual's personal information providing a single consistent interface to authenticate individuals. Diversinet's Passport One represents the optimal PKI-enabled smart card solution conserving the greatest amount of critical memory space for mobile commerce and security related applications.

"By 2006, the smart card market will have experienced dramatic change. The future holds sophisticated, high-security cards, with an extended degree of personalization and multi-application capabilities," Datamonitor report: New Smart Card Opportunities - One card: a million uses?, April 2001.

Passport One is currently being piloted.

About Diversinet Corp.

Diversinet is a leading developer of advanced wireless security software, enabling mobile e-commerce (m-commerce) services with its wireless security infrastructure solutions. Diversinet's client/server security software facilitates digital signatures, authentication and encryption with PKI products specifically designed to perform optimally in wireless environments and devices. Network Computing's Mobile Observer recently listed Diversinet as one of the top 50 public companies in the mobile and wireless industries. In October of 2001, Diversinet enabled the launch of the first public Certification Authority in the world to offer mobile individual and business digital certificates for consumer use. For more information on Diversinet, visit the company's web site at www.diversinet.com.

The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-looking statements. Certain information included in this press release (as well as information included in oral statements or other written statements made or to be made by the company) contains statements that are forward-looking, such as statements relating to anticipated future revenues of the company and success of current product offerings. Such forward-looking information involves important risks and uncertainties that could significantly affect anticipated results in the future and, accordingly, such results may differ materially from those expressed in any forward-looking statements made by or on behalf of the company. For a description of additional risks and uncertainties, please refer to the company's filings with the Securities and Exchange Commission.