Importance

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Abstract

A system for encrypting and decrypting S/MIME messages using a browser in either a web or wireless device for transmission to or from a web server on the Internet connected to an email server. The S/MIME encryption and decryption is conducted using a standard web browser on a personal computer or a mini browser on a wireless device such that email transmitted to the web or wireless browser from the web server can be completed and encrypted and signed by the user of the browser with such encrypted and signed data can be sent back to the web server. A method for delivering and using private keys in a browser and to ensure that such keys are destroyed after use is also provided. A method of transmitting encrypted S/MIME compliant messages to a web or wireless browser and decrypting and verifying such messages using the browser on the wireless device is also disclosed. A method for authenticating the sender/user of the browser, and a method for verifying and retrieving the certificates of the intended recipient of such messages in accordance with the public key infrastructure.

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First Claim