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mod_s2s_keysize_policy/mod_s2s_keysize_policy.lua @ 4646:072d078be095
mod_storage_xmlarchive: Advertise capabilities (none atm)
Both 'total' and 'quota' would be prohibitively expensive for the kind
of archives this module targets as it would require counting items
across the entire archive.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 13 Aug 2021 01:18:32 +0200 |
parent | 2424:27ffa6521d4e |
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-- mod_s2s_keysize_policy.lua -- Requires LuaSec with this patch: https://github.com/brunoos/luasec/pull/12 module:set_global(); local datetime_parse = require"util.datetime".parse; local pat = "^([JFMAONSD][ceupao][glptbvyncr]) ?(%d%d?) (%d%d):(%d%d):(%d%d) (%d%d%d%d) GMT$"; local months = {Jan=1,Feb=2,Mar=3,Apr=4,May=5,Jun=6,Jul=7,Aug=8,Sep=9,Oct=10,Nov=11,Dec=12}; local function parse_x509_datetime(s) local month, day, hour, min, sec, year = s:match(pat); month = months[month]; return datetime_parse(("%04d-%02d-%02dT%02d:%02d:%02dZ"):format(year, month, day, hour, min, sec)); end local weak_key_cutoff = datetime_parse("2014-01-01T00:00:00Z"); -- From RFC 4492 local weak_key_size = { RSA = 2048, DSA = 2048, DH = 2048, EC = 233, } module:hook("s2s-check-certificate", function(event) local host, session, cert = event.host, event.session, event.cert; if cert and cert.pubkey then local _, key_type, key_size = cert:pubkey(); if key_size < ( weak_key_size[key_type] or 0 ) then local issued = parse_x509_datetime(cert:notbefore()); if issued > weak_key_cutoff then session.log("warn", "%s has a %s-bit %s key issued after 31 December 2013, invalidating trust!", host, key_size, key_type); session.cert_chain_status = "invalid"; session.cert_identity_status = "invalid"; else session.log("warn", "%s has a %s-bit %s key", host, key_size, key_type); end else session.log("info", "%s has a %s-bit %s key", host, key_size, key_type); end end end);