Mercurial > prosody-modules
annotate mod_tls_policy/README.markdown @ 4203:c4002aae4ad3
mod_s2s_keepalive: Use timestamp as iq @id
RFC 6120 implies that the id attribute must be unique within a stream.
This should fix problems with remote servers that enforce uniqueness and
don't answer duplicated ids.
If it doesn't do that, then at least you can get a guesstimate at
round-trip time from the difference between the result iq stanza and the
timestamp it was logged without having to go look for when it was sent,
or needing to keep state.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Wed, 14 Oct 2020 18:02:10 +0200 |
| parents | ad24f8993385 |
| children |
| rev | line source |
|---|---|
|
1845
ad24f8993385
mod_tls_policy/README: Fix summary so modules.prosody.im understands it
Kim Alvefur <zash@zash.se>
parents:
1843
diff
changeset
|
1 --- |
|
ad24f8993385
mod_tls_policy/README: Fix summary so modules.prosody.im understands it
Kim Alvefur <zash@zash.se>
parents:
1843
diff
changeset
|
2 summary: Cipher policy enforcement with application level error reporting |
|
ad24f8993385
mod_tls_policy/README: Fix summary so modules.prosody.im understands it
Kim Alvefur <zash@zash.se>
parents:
1843
diff
changeset
|
3 ... |
| 1842 | 4 |
| 5 # Introduction | |
| 6 | |
|
1843
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
7 This module arose from discussions at the XMPP Summit about enforcing |
|
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
8 better ciphers in TLS. It may seem attractive to disallow some insecure |
|
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
9 ciphers or require forward secrecy, but doing this at the TLS level |
|
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
10 would the user with an unhelpful "Encryption failed" message. This |
|
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
11 module does this enforcing at the application level, allowing better |
|
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
12 error messages. |
| 1842 | 13 |
| 14 # Configuration | |
| 15 | |
|
1843
032b209bb8ff
mod_tls_policy/README: Reflow and strip trailing whitespace (pandoc thougt it meant explicit line breaks)
Kim Alvefur <zash@zash.se>
parents:
1842
diff
changeset
|
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 |