thawte Code Signing Solution to Ensure Integrity of Applications on Adobe AIR

Developers Deploying Applications on Adobe AIR to Use thawte 'Virtual Shrinkwrap,' End-Users Assured of Application Publisher's Identity

MOUNTAIN VIEW, CA - (February 25, 2008) - With today's launch of Adobe® AIR(TM), a cross-operating system runtime that enables rich Internet applications (RIAs) on the desktop, developers and end-users are assured that applications on Adobe AIR are from a trusted publisher and that applications can be securely delivered and installed - all thanks to advanced Code Signing solutions from thawte, Inc., a wholly-owned subsidiary of VeriSign, Inc. (NASDAQ: VRSN).

By obtaining a thawte® Code Signing Certificate for an application on Adobe AIR, RIA developers can digitally sign applications, resulting in "virtual shrinkwrap" protection. Developers benefit because users are more likely to install trusted applications. For the end-user, a broken digital signature means code has been tampered with or modified, and the application can't be installed on the machine. This protection offers developers a way to ensure for users that applications deployed on Adobe AIR are secure.

Adobe requires all applications on Adobe AIR to be digitally signed, and thawte is the first Certification Authority offering Adobe AIR developer certificates for Web developers.

"thawte developed this new Adobe AIR Developers certificate in time for the global launch of Adobe AIR to help ensure that these applications can safely be delivered to the desktop," said Michael Lin, vice president of SSL product management at VeriSign. "By preserving the integrity of applications on Adobe AIR and providing end-users with assurances about developers' identity from day one, thawte proves authenticity of developers and safeguards consumers against hackers and other threats. This advanced protection also dovetails with VeriSign's strategy to protect online content, applications and transactions."

Adobe AIR is a milestone runtime environment that enables developers to use the skills and Web technologies - such as HTML, AJAX, PDF, Adobe Flash® and Adobe Flex® - they already employ to deliver RIAs on the desktop. When an application on Adobe AIR is installed, Adobe AIR presents the user with a security dialog to confirm they wish to install the application from a particular provider who is identified by digitally signing the application. The installer also informs the user that the application will be able to access the local hard disk. The user makes the final decision as to whether or not they trust the provider and want to install the application based on the trusted identity.

"The use of digital signatures protects the integrity of applications and confirms the authorship of RIAs deployed on Adobe AIR. They are essential to the safe delivery of content on the desktop," said Luis Polanco, senior product manager, Adobe AIR at Adobe. "Unlike Web applications, applications on Adobe AIR are installed on a user's machine, so they must support the same kind of security protections required for desktop software. thawte Code Signing Certificates are an important part of achieving this goal and we are delighted to have thawte on board for the launch of Adobe AIR."

About thawte

thawte, the Certification Authority chosen by hundreds of thousands, has been innovating and delivering trusted services for more than a decade. thawte enables businesses and individuals to communicate and transact securely by verifying and authenticating their identities, thus allowing them to gain the trust and confidence of millions of users. thawte digital certificates are used globally to secure servers, encrypt files and communication, and validate the authenticity of applications and digital code. Through its dedication to maintaining your security, thawte is helping to build a trusted digital future for everyone. For more information about thawte, its products and trusted services, please visit

About VeriSign

VeriSign, Inc. (NASDAQ: VRSN), operates intelligent infrastructure services that enable and protect billions of interactions every day across the world's voice, video and data networks. Additional news and information about the company is available at

©2008 VeriSign, Inc. All rights reserved. VeriSign, the VeriSign logo, the checkmark circle, thawte, and other trademarks, service marks, and designs are registered or unregistered trademarks of VeriSign, Inc., and/or its subsidiaries in the United States and in foreign countries. All other trademarks are property of their respective owners.

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