Verisign, Inc.

Xinhong Yuan

Atul Vijay Tulshibagwale

Robert Winslow Pratt

Gregory R Whitehead

Stan J Simon

Mahinda K De Silva

A first user () requests a service provider () to create () a record of a transaction. The service provider () creates () a digital receipt (), which includes a description () of the transaction understandable by humans, tamper-proof evidence () of the transaction, and a verification prompt (). A second user () who desires to verify the transaction displays () the digital receipt () and activates () the verification prompt (). Upon activation, the tamper-proof evidence () is verified without requiring further human interaction to identify the tamper-proof evidence.

Digital receipt for a transaction

A local server ( ) locally hosts the provision of digital certificate services to a client ( ); while a central server ( ) provides the actual digital certificate services. The local server ( ) transmits ( ) a custom entry form ( ) to the client ( ). In response to the client's ( ) use of the custom entry form ( ), the client ( ) transmits ( ) a standard request for digital certificate services to a central server ( ), possibly via the local server ( ). The central server ( ) fulfills ( ) the request, generating a standard response. The standard response is transmitted ( ) to the local server ( ), which generates ( ) a custom display of the results contained in the standard response. The custom display is transmitted ( ) to the client ( ), fulfilling the client's request. Information is provided ( ), enabling the local server ( ) to create ( ) appropriate custom entry forms ( ) and to generate ( ) the custom display from the standard response. The communications between local server ( ) and central server ( ) preferably are secured.

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San Jose, CA, United States of America

Xinhong Yuan