| 摘要 |
<p>The present invention provides a method and system for warranting electronic mail using a hybrid public key encryption scheme. In one embodiment, the sender contacts an authentication server which first identifies the sender as being allowed to send through the server, and secondly signs his email using a private key in order to send to the recipient. Upon receipt, the recipient can then verify that the sender is indeed authenticated by the authentication server by contacting the authentication server, requesting the sender's public key and using this public key to validate the signature contained in the email. It is possible that the authentication server may itself send the email to the existing mail servers, or it may simply return the signature to the sender for sending to the recipient along with the original email using the sender's existing outgoing email server.</p> |
