Patent ID: 7437562
Filing Date: 2008-10-14
Classification: H04L

Abstract:
1. A method for digitally signing electronic mail that originates from a web browser, comprising: receiving at a remote mail server content for an electronic mail message and a signature request from the web browser of a client , wherein the web browser does not include a mechanism for formatting the message into an electronic mail format; formatting the electronic mail message at the remote mail server to a format that can be digitally signed; returning the formatted electronic mail message to the web browser of the client so that the web browser of the client can generate a digital signature for the formatted electronic mail message, wherein returning the formatted message to the web browser of the client allows the client to maintain control over cryptographic keys used for the signature receiving at the remote mail server a signature for the formatted electronic mail message from the web browser of the client; encapsulating at the remote mail server the formatted electronic mail message and the signature as a secure electronic mail message; and forwarding the secure electronic mail message to intended recipients.