Patent ID: 6584564
Filing Date: 2003-06-24
Classification: H04L

Abstract:
A method for sending a secure e-mail, comprising the steps of:(a) composing an e-mail message by a sender, wherein said e-mail message includes a body field and at least one receiver field containing at least one receiver id representing at least one intended receiver; (b) providing from said sender a sender id, a sender password, and all said receiver ids to a security server; (c) receiving at said sender a message key and a message id which is unique for said e-mail message from said security server; (d) encrypting said body field of said e-mail message based on said message key and enclosing said message id therewith to form the secure e-mail at said sender; (e) mailing said secure e-mail to said receivers, wherein said secure e-mail itself is not communicated to or via said security server; and (f) storing said message id, said message key, and all said receiver ids at said security server, to allow said security server to provide said message key to said receivers so that they may decrypt the secure e-mail.