view mod_s2s_auth_fingerprint/README.markdown @ 5461:06640647d193

mod_http_oauth2: Fix use of arbitrary ports in loopback redirect URIs Per draft-ietf-oauth-v2-1-08#section-8.4.2 > The authorization server MUST allow any port to be specified at the > time of the request for loopback IP redirect URIs, to accommodate > clients that obtain an available ephemeral port from the operating > system at the time of the request. Uncertain if it should normalize the host part, but it also seems harmless to treat IPv6 and IPv4 the same here. One thing is that "localhost" is NOT RECOMMENDED because it can sometimes be pointed to non-loopback interfaces via DNS or hosts file.
author Kim Alvefur <zash@zash.se>
date Wed, 17 May 2023 13:51:30 +0200
parents 8de50be756e5
children
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---
labels:
- 'Stage-Alpha'
- 'Type-S2SAuth'
summary: Fingerprint based s2s authentication
...

Introduction
============

This module allows you to manually pin certificate fingerprints of
remote servers.

Details
=======

Servers not listed in the configuration are not affected.

Configuration
=============

After installing and enabling this module, you can put fingerprints of
remote servers in your config like this:

``` {.lua}
s2s_auth_fingerprint_digest = "sha1" -- This is the default. Other options are "sha256" and "sha512"
s2s_trusted_fingerprints = {
    ["jabber.org"] = "11:C2:3D:87:3F:95:F8:13:F8:CA:81:33:71:36:A7:00:E0:01:95:ED";
    ["matthewwild.co.uk"] = {
        "FD:7F:B2:B9:4C:C4:CB:E2:E7:48:FB:0D:98:11:C7:D8:4D:2A:62:AA";
        "CF:F3:EC:43:A9:D5:D1:4D:D4:57:09:55:52:BC:5D:73:06:1A:A1:A0";
    };
}

-- If you don't want to fall back to dialback, you can list the domains s2s_secure_domains too
s2s_secure_domains = {
    "jabber.org";
}
```

Compatibility
=============

  ------- --------------
  trunk   Works
  0.9     Works
  0.8     Doesn't work
  ------- --------------