On Thu, 08 Jan 2004, tzz@lifelogs.com wrote:

> Without gencrypt.el, gnus-encrypt.el will provide four options:
> OpenSSL encoding (I'll just copy what I have in netrc.el), GPG
> encoding (simple command-line invocation with --armor), base64
> encoding, and no encoding.

I've finished the GPG and one built-in cipher for gnus-encrypt.el.
Attached is the code.  I need a few people to test it, and any
feedback is appreciated of course.  OpenSSL and base64 encodings were
not implemented because I didn't think they were really necessary.
OpenSSL support will probably come through gencrypt.el when that's
released.

If the *encoding* fails, the file is saved in plain text.

If the *decoding* fails, we load the encoded file.  Tough break.

The built-in XOR filter is actually pretty nice.  It's not good
encryption, but it's definitely a step up from base64, and it had
decent speed when I tried it.

The major issue is that, for simplicity, gnus-encrypt.el only works
with whole buffers.  I don't think more will be necessary for Gnus
development, although the gencrypt.el code will definitely support
encoding of regions and such.

If and when gnus-encrypt.el goes into the Gnus CVS, I will start
adding support for it everywhere in Gnus.  Without setting
gnus-encrypt-file-alist, users will see absolutely no effect from the
gnus-encrypt functions.

Ted