File

mod_s2s_auth_fingerprint/README.markdown @ 5243:d5dc8edb2695

mod_http_oauth2: Use more compact IDs UUIDs are nice but so verbose! The reduction in entropy for the nonce should be fine since the timestamp is also counts towards this, and it changes every second (modulo clock shenanigans), so the chances of someone managing to get the same client_secret by registering with the same information at the same time as another entity should be negligible.
author Kim Alvefur <zash@zash.se>
date Sat, 11 Mar 2023 22:46:27 +0100
parent 1820:8de50be756e5
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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
  ------- --------------