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Diffstat (limited to 'website/getting-started-user.mdwn')
| -rw-r--r-- | website/getting-started-user.mdwn | 95 |
1 files changed, 83 insertions, 12 deletions
diff --git a/website/getting-started-user.mdwn b/website/getting-started-user.mdwn index 947c2da..e0a2dab 100644 --- a/website/getting-started-user.mdwn +++ b/website/getting-started-user.mdwn @@ -87,23 +87,94 @@ Using your OpenPGP authentication key for SSH Once you have created an OpenPGP authentication subkey, you will need to feed it to your ssh agent. -Currently (2008-08-23), gnutls does not support this operation. In order -to take this step, you will need to upgrade to a patched version of -gnutls. You can easily upgrade a Debian system by adding the following -to `/etc/apt/sources.list.d/monkeysphere.list`: - - deb http://archive.monkeysphere.info/debian experimental gnutls - deb-src http://archive.monkeysphere.info/debian experimental gnutls - -Next, run `aptitude update; aptitude install libgnutls26`. - -With the patched gnutls installed, you can feed your authentication -subkey to your ssh agent by running: +The GnuTLS library supports this operation as of version 2.6, but +earlier versions do not. With a recent version of GnuTLS installed, +you can feed your authentication subkey to your ssh agent by running: $ monkeysphere subkey-to-ssh-agent +If you can't (or don't want to) upgrade to GnuTLS 2.6 or later, there +are patches for GnuTLS 2.4 available in [the Monkeysphere git +repo](/community). + FIXME: using the key with a single ssh connection? +Establish trust +--------------- + +Now that you have the above setup, you will need to establish an +acceptable trust path to the admin(s) of a monkeysphere-enabled server +that you will be connecting to. You need to do this because the admin +is certifying the host, and you need a mechanism to validate that +certification. The only way to do that is by indicating who you trust +to certify hosts. This is a two step process: first you must sign the +key, and then you have to indicate a trust level. + +The process of signing another key is outside the scope of this +document, however the [gnupg +README](http://cvs.gnupg.org/cgi-bin/viewcvs.cgi/branches/STABLE-BRANCH-1-4/README?root=GnuPG&view=markup) +details the signing process and you can find good [documentation +](http://www.debian.org/events/keysigning) online detailing this +process. + +If you have signed your admins' key, you need to denote some kind of +trust to that key. To do this you should edit the key and use the +'trust' command. For the Monkeysphere to trust the assertions that are +made about a host, you need full calculated validity to the host +certifiers. This can be done either by giving full trust to one +host-certifying key, or by giving marginal trust to three different +host-certifiers. In the following we demonstrate how to add full trust +validity to a host-certifying key: + + + $ gpg --edit-key 'Jane Admin' + gpg (GnuPG) 1.4.9; Copyright (C) 2008 Free Software Foundation, Inc. + This is free software: you are free to change and redistribute it. + There is NO WARRANTY, to the extent permitted by law. + + + pub 4096R/ABCD123A created: 2007-06-02 expires: 2012-05-31 usage: SC + trust: unknown validity: full + sub 2048R/01DECAF7 created: 2007-06-02 expires: 2012-05-31 usage: E + [ full ] (1). Jane Admin <jane_admin@example.net> + + Command> trust + pub 4096R/ABCD123A created: 2007-06-02 expires: 2012-05-31 usage: SC + trust: unknown validity: full + sub 2048R/01DECAF7 created: 2007-06-02 expires: 2012-05-31 usage: E + [ full ] (1). Jane Admin <jane_admin@example.net> + + Please decide how far you trust this user to correctly verify other users' keys + (by looking at passports, checking fingerprints from different sources, etc.) + + 1 = I don't know or won't say + 2 = I do NOT trust + 3 = I trust marginally + 4 = I trust fully + 5 = I trust ultimately + m = back to the main menu + + Your decision? 4 + + pub 4096R/ABCD123A created: 2007-06-02 expires: 2012-05-31 usage: SC + trust: full validity: full + sub 2048R/01DECAF7 created: 2007-06-02 expires: 2012-05-31 usage: E + [ full ] (1). Jane Admin <jane_admin@example.net> + Please note that the shown key validity is not necessarily correct + unless you restart the program. + + Command> save + Key not changed so no update needed. + $ + +Note: Due to a limitation with gnupg, it is not currently possible to +limit the domain scope properly, which means that if you fully trust +an admin, you'll trust all their certifications. + +Because the Monkeysphre relies on GPG's definition of the OpenPGP web +of trust, it is important to understand [how GPG calculates User ID +validity for a key](/trust-models). + Miscellaneous ------------- |