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Re: [Demexp-dev] Freenigma: a way to encrypt on the client with web tech

From: Jérémy DUBREIL
Subject: Re: [Demexp-dev] Freenigma: a way to encrypt on the client with web technlogy
Date: Thu, 03 Aug 2006 19:15:32 +0200
User-agent: Thunderbird (X11/20060728)


It is a good idea to keep in mind.

In the same domain (using some feature of firefox), does anybody have
already had a look as XUL ?

This example shows the possibilities :


David MENTRE wrote:
> Hello,
> While reading, I found this announcement of Freenigma service:
> Freenigma is a way to encrypt emails in web mails. What is interesting
> is that encryption is done on the client side, in the web browser
> (with of course some help of a server). This is done with apparently a
> pure Javascript Firefox extension, working on MacOS, Linux and
> Windows.
>> From
> """
> Does freenigma send my mails to the freenigma server for encryption?
> No. All mail is encrypted or decrypted directly in the webmail client
> (i.e. directly in the browser). But how does that work?! For the
> experts: when making an encryption request, the freenigma extension
> sends nothing more than the list of recipient addresses to the
> freenigma server. In response, it receives a random session key for
> symmetric encryption within the client as well as an asymmetrically
> encrypted session key for all the recipients. AES encryption is then
> performed within the client using the unencrypted session key. Then,
> the user script in the client combines the symmetrically encrypted
> mail text and the asymmetrically encrypted session key to create the
> OpenPGP binary format.
> """
> The Freenigma in the web browser (Firefox extension) code should be
> available as Free Software, under GNU GPL licence.
> Certainly an architecture to look at in the future.
> Best wishes,
> d.
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