Mercurial > prosody-modules
annotate mod_tls_policy/README.markdown @ 5265:f845c218e52c
mod_http_oauth2: Allow revoking a token without OAuth client credentials
If you have a valid token, and you're not supposed to have it, revoking
it seems the most responsible thing to do with it, so it should be
allowed, while if you are supposed to have it, you should also be
allowed to revoke it.
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 21 Mar 2023 22:02:38 +0100 |
parents | ad24f8993385 |
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1 --- |
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2 summary: Cipher policy enforcement with application level error reporting |
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3 ... |
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5 # Introduction | |
6 | |
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7 This module arose from discussions at the XMPP Summit about enforcing |
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8 better ciphers in TLS. It may seem attractive to disallow some insecure |
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9 ciphers or require forward secrecy, but doing this at the TLS level |
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10 would the user with an unhelpful "Encryption failed" message. This |
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11 module does this enforcing at the application level, allowing better |
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12 error messages. |
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14 # Configuration | |
15 | |
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16 First, download and add the module to `module_enabled`. Then you can |
1842 | 17 decide on what policy you want to have. |
18 | |
19 Requiring ciphers with forward secrecy is the most simple to set up. | |
20 | |
21 ``` lua | |
22 tls_policy = "FS" -- allow only ciphers that enable forward secrecy | |
23 ``` | |
24 | |
25 A more complicated example: | |
26 | |
27 ``` lua | |
28 tls_policy = { | |
29 c2s = { | |
30 encryption = "AES"; -- Require AES (or AESGCM) encryption | |
31 protocol = "TLSv1.2"; -- and TLSv1.2 | |
32 bits = 128; -- and at least 128 bits (FIXME: remember what this meant) | |
33 } | |
34 s2s = { | |
35 cipher = "AESGCM"; -- Require AESGCM ciphers | |
36 protocol = "TLSv1.[12]"; -- and TLSv1.1 or 1.2 | |
37 authentication = "RSA"; -- with RSA authentication | |
38 }; | |
39 } | |
40 ``` | |
41 | |
42 # Compatibility | |
43 | |
44 Requires LuaSec 0.5 | |
45 |