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Celeste in 3.10

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Rob Withers

Celeste in 3.10

I am trying to load Celeste and use it in 3.10. there are some
scroll msg failures, which I fixed, but forgot what the fixes are. I
am now faced with an error in the AddressBook, when trying to "get"
addresses from Celeste. Can somebody look into migrating all this
great work forward? I need it to implement S/MIME.

thanks,
Robert

smime.p7s (3K) Download Attachment

Lex Spoon-3

Re: Celeste in 3.10

Robert Withers <[hidden email]> writes:
> I am trying to load Celeste and use it in 3.10. there are some
> scroll msg failures, which I fixed, but forgot what the fixes are. I
> am now faced with an error in the AddressBook, when trying to "get"
> addresses from Celeste. Can somebody look into migrating all this
> great work forward? I need it to implement S/MIME.

Hey Robert,

I actively use Celeste, so if Giovanni does not beat me to it, I will
still get it working in 3.10 at some point. That might be a month or
so, though, given my current insane level of happenings.

It would help, Robert, if you find the time to post your patches to
Mantis, so that they do not fall through the cracks.

-Lex

Rob Withers

Re: Celeste in 3.10

In reply to this post by Rob Withers

Hey Lex,

I found the Universe entry for Celeste (ver 25) and it loaded fine and runs well. The version on SqueakMap (24) was the one causing me trouble initially.

I have SMIME mostly implemented. I can process signatures generated from Mac Email or Squeak. I can process encryption from Mac Email or Squeak. I can generate encryption for Mac Email or Squeak. However, I can only generate signatures for Squeak consumption; one bug remaining when generating signatures for Mac Email, which I believe to be another issue with internet line endings, like my last encryption bug.

I was thinking of linking SMIME and Celeste and I wonder if you are interested in that.

Robert

----- Original Message ----
From: Lex Spoon <[hidden email]>
To: [hidden email]
Sent: Friday, April 20, 2007 12:08:20 PM
Subject: Re: Celeste in 3.10

Robert Withers <[hidden email]> writes:
> I am trying to load Celeste and use it in 3.10.  there are some
> scroll msg failures, which I fixed, but forgot what the fixes are.  I
> am now faced with an error in the AddressBook, when trying to "get"
> addresses from Celeste.  Can somebody look into migrating all this
> great work forward?  I need it to implement S/MIME.

Hey Robert,

I actively use Celeste, so if Giovanni does not beat me to it, I will
still get it working in 3.10 at some point.  That might be a month or
so, though, given my current insane level of happenings.

It would help, Robert, if you find the time to post your patches to
Mantis, so that they do not fall through the cracks.

-Lex

Lex Spoon-3

Re: Celeste in 3.10

Ahhhh, I'll update the SqueakMap entry. Thanks for figuring
this out. Do send on any patches that still appear necessary.

Rob Withers <[hidden email]> writes:
> I have SMIME mostly implemented. [...]
> I was thinking of linking SMIME and Celeste and I
> wonder if you are interested in that.

This sounds really useful!

Why did you pick SMIME rather than PGP, by the way? PGP seems to be
better established, in part because it is not just for email.

Lex

Rob Withers

Re: Celeste in 3.10

In reply to this post by Rob Withers

----- Original Message ----
From: Lex Spoon [hidden email]

> Why did you pick SMIME rather than PGP, by the way? PGP seems to be
> better established, in part because it is not just for email.

I chose SMIME for several reasons:

1) OpenPGP support has already been started by Hans Martin Mosner and I didn't want to step on his work, since I didn't understand it.

2) I wanted to leverage the work we had done on ASN.1 and S/MIME uses CMS which is defined using ASN.1

3) Both Mac Email and MS Outlook provide S/MIME support by default. All you need do is add a Certificate, and you are encrypting and signing. I felt S/MIME had more installed base.

4) Most CAs issue Certificates in X509 format, used by SMIME

4) I was bored and I needed a project.

Would it be possible to support both S/MIME and PGP? I have defined a CertificateStore, which I persist on disk, in which I save the users private key, the user's certificates, and the recipients' Certificates for encrypting. Presumable PGP needs the same kind of info. I had read that the Certificate structure is different for PGP, so maybe that would be sufficient for differentiating between the two.

If we added SMIME to Celeste, it would become dependent on most of the Cryptography repository (http://www.squeaksource.com/Cryptography) - would that be ok? There would need to be some UI changes - when editing to mark an email for signing and/or encryption, and when receiving an email to display whether signed, encrypted, or both. It may make sense to have a header form and a body form, and the body form would be multipart aware. I dunno.

Rob

Rob Withers

Re: Celeste in 3.10

Lex,

I finally got SMIME signed mail working, having found a bug in RSA Signature code. I am getting the Crypto code updated on SqueakMap and I have published the latest SMIME in the Cryptography Monticello repository.

So do you want to integrate SMIME into Celeste?

On Apr 20, 2007, at 3:52 PM, Rob Withers wrote:

If we added SMIME to Celeste, it would become dependent on most of the Cryptography repository (http://www.squeaksource.com/Cryptography)

The new Crypto library is published to SqueakMap as 'Cryptography Team Package' and a new one is forthcoming that is needed for SMIME.

cheers,

Robert

smime.p7s (3K) Download Attachment

Lex Spoon-3

Re: Celeste in 3.10

Robert Withers <[hidden email]> writes:

> Lex,
>
> I finally got SMIME signed mail working, having found a bug in RSA
> Signature code. I am getting the Crypto code updated on SqueakMap
> and I have published the latest SMIME in the Cryptography Monticello
> repository.
>
> So do you want to integrate SMIME into Celeste?
>
> On Apr 20, 2007, at 3:52 PM, Rob Withers wrote:
>
> > If we added SMIME to Celeste, it would become dependent on most of
> > the Cryptography repository
> > (http://www.squeaksource.com/Cryptography)
>
> The new Crypto library is published to SqueakMap as 'Cryptography
> Team Package' and a new one is forthcoming that is needed for SMIME.

Hey, Robert,

In general this sounds great! If SMIME is popular, then Celeste may
as well support it!

I admit I have a soft spot for PGP's web of trust approach to
signatures. Certification Authorities are important even for PGP, but
not to the same prominance. Do you know if it is even possible for a
normal person to get a CA-approved SMIME-compatible cerificate? How
much would it cost? PGP is all free.

Anyway, let's figure out how to get it integrated.

First, depending on Cryptography is just fine. It seems inevitable
for a full-featured mail reader to depend on lots of stuff. I guess
it would be possible to make the cryptography features optional, but
then again, it doesn't strike me as a big deal.

Second, here is a sequence of mods that would seem to get the code
integrated. Please correct anything that sounds bonkers.

1. MailMessage>>format should decrypt and check signatures when the
message needs it. Whether it succeeds or fails, it can then insert a
message at the top of the formatted result describing what it did,
e.g. whether the signature passed.

2. MailAccount should have certificate information for the user, and
Celeste should have menu items for modifying that information. I
honestly don't know whether the certificate should be held in a file
or in the image....

3. CelesteComposition ("Mr. Postman") should have buttons for signing
and encrypting a message. (By the way, I notice there is a separate
MailComposition class that looks like a clone of CelesteComposition.
Don't be misled! In fact, this needs some refactoring; my initial vote
would be to get rid of MailComposition, as the shortest path to a sane
factoring.)

These three would seem to do the trick, don't you think? All the real
work would be left to your SMIME package.

I do NOT plan to implement these immediately, because I have been
spending my charity-work time on package universes lately. So, Rob or
anyone, feel free to beat me to it and send me an mcz or a changeset.
In the meantime, I'll put this all on my Celeste todo list.

Lex