Mercurial > prosody-modules
annotate mod_tls_policy/README.markdown @ 5627:3a5cf8d80089
mod_http_oauth2: Tweak method of centering the UI
The percentage here was relative to the viewport width, which on some
very wide screens may put the UI slightly outside of the view, requiring
scrolling to see.
By using a unit relative to the height of the viewport, this is avoided
and should work better. But no guarantees, it's still possible to resize
the browser or adjust font sizes so that the UI goes out of view.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 31 Jul 2023 07:28:09 +0200 |
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 |