Patent ID: 7660987

Claim:
A method to establish the e-mail secure transmission link between an initiator site and a responder site, each site comprising a key generating means to produce a symmetrical key to encode and decode secure e-mail messages for transmission over a network between the initiator site and responder site wherein the symmetrical keys are produced by the key generating means through the exchange of unique numbers created at the initiator site and the responder site, the method comprising the steps of: creating a unique initiator number, generating of the unique initiator exchange key component including the unique initiator number at the initiator site, transmitting the request from the initiator site to the responder site to establish the e-mail secure transmission link including an e-mail plug-in and the unique initiator exchange key component, downloading the e-mail plug-in of necessity and accepting the request to establish the e-mail secure transmission link at the responder site, creating a unique responder number, combining of the unique responder number and the unique initiator exchange key component to create the unique initiator/responder encryption key at the responder site, generating a unique responder exchange key component including the unique responder number at the responder site, transmitting a reply accepting the initiator's request and the unique responder exchange key component from the responder site to the initiator site, accepting the reply from the responder site at the initiator site, combining the unique initiator number with the unique responder exchange key component to create the unique initiator/responder encryption key at the initiator site and establishing the e-mail secure transmission link to send and receive e-mail between the initiator site and the responder site encrypted with the unique initiator/responder encryption key establishing the e-mail secure transmission link wherein the initiator site and the responder site are capable of exchanging secure e-mail messages and revoking the e-mail secure transmission link at either the initiator site or the responder site.