README for the PGP6 patch to ELM 2.4 PL24

Blurb

Elm-PGP offers tightly coupled usage of PGP in Elm. You are able to send PGP encrypted mails, check signatures and read encrypted mails with minimal overhead. There is also a user interface (similar to the aliases part of ELM) to comfortably manage the PGP keyrings.

Authors and contact addresses

The PGP6 patch contains changes and extensions to ELM which come from muchsel@acm.org (Robert Muchsel - Main PGP integration), chris@phil.uni-sb.de (Chris Blum - Keyring management interface) and caronni@tik.ee.ethz.ch (Germano Caronni - Extensions and bugfixes).

Primary contact address for the PGP6 patch is caronni@tik.ee.ethz.ch Send bugreports (better: patches), comments and suggestions to me, I will forward them to the appropriate person.

Elm-PGP is originally based on a hack by Mic Shaw egd017@cent1.lancs.ac.uk; we tried to reach him, but this address doesn't seem to exist anymore. This patch has been tested on Linux and Solaris, but it should work on any reasonably Unix compatible platform.

FTP

You may get the newest version of Elm-PGP at ftp://ktik0.ethz.ch/~ftp/pub/packages/elm-pgp

Features of Elm-PGP

Our version of Elm-PGP has the following features:
  1. PGP support is only active and visible if the following conditions are met: This makes it possible to install Elm-PGP as the default Elm for all users.
  2. Sending PGP messages is done automatically:
  3. The pass phrase is not kept in the environment and not passed as a command line parameter. The pipe mechanism of PGP is used.
  4. Printing, piping, batch mode, etc. are supported.

Installation

  1. Make sure PGP and Elm 2.4 PL24 (standard) work and you know how to use them. If you haven't compiled any version of Elm yet, it's probably safer to try the unpatched version first.
  2. Apply the patches (patch -p < elm.pl24-pgp6.diff) in the elm directory itself. Some versions of patch need the -p argument to create new files in the correct location, and not in the toplevel directory. Apply later patches (e.g. elm.pgp6-pgp6a.diff) in chronological order.
  3. Run Configure. There are three new questions regarding PGP support:
  4. Make Elm-PGP (make elm or pmake elm) and run strip bin/*.
  5. Make a backup copy of standard Elm.
  6. Move Elm-PGP to its proper place and set the permissions. This can be done automatically by make install or pmake install.
  7. Set PGPPATH and ELMPGP environment variables (preferably in .login or .profile) if you want to use the PGP features.
       setenv PGPPATH ~/.pgp
       setenv ELMPGP YES 
    (only if PGP support should be on by default)
  8. It is useful to add the following line to the .pgprc or config.txt file:
       MyName = "<Your user id>"
    
    Elm-PGP tries to set all other options automatically. Section 5 lists all styles of PGP invocations Elm-PGP does. For further information, please check pgpdoc2.txt.
  9. Check whether you configured the mail domain correctly:

    Run elm -P and enter the pass phrase. Now m)ail to your own user id. If PGP-Elm can encrypt the mail ('Encrypting...') and it shows up in the incoming folder with a 'P' status indicator and you can display it properly, everything is OK. As a last check, press '%' and verify that the address is correct.

  10. Some Hints for Linux:
  11. Hints for Solaris:

Using Elm-PGP

That's all there is to know about Elm-PGP.

Changes

For version 6

For version 5a

For version 5

I have changed the following from Mic's PGPELM implementation: And many many other changes...

PGP Invocations

PGP is invoked for different purposes by Elm-PGP. This is an (as of PGP6) exhaustive list of invocation methods:

And now some PGP keys

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: 2.6.2

mQCNAi1CDBsAAAEEALPQMXYAKg7CU/ZSfjGWxDrsxUyiXwQ49AgGnojhoSIAt9A4
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mUSlPEAL1c4gP9d54J/024MlwM50zsgmdgaXGaSpjqD4r5iFjkW/rgoB+dHxAAUR
tCFDaHJpcyBCbHVtIDxjaHJpc0BwaGlsLnVuaS1zYi5kZT60KENocmlzIEJsdW0g
PGNocmlzQGNocmlzLnRlbGlwLnVuaS1zYi5kZT60I0NocmlzIEJsdW0gPGNocmlz
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PnwUdbp/1V8kPz94GVXCh3/kohjp5uTcCFdGfKBxgkHV9N/5chhvV90ZtHPwH5Z7
REIbp/P8wcrAarOmBZjCIaW2yZiw41lAkSGJAJUCBRAthRDaRb+uCgH50fEBAY+P
A/9O04XnmUCUJkibXs+oYd8sXNdU62SKsAvmdWZnCSk3j0nHFRLF7uOgq7hliNVu
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=vuPT
-----END PGP PUBLIC KEY BLOCK-----

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