Software /
code /
prosody
File
util/hex.lua @ 12594:29685403be32
mod_saslauth: Implement RFC 9266 'tls-exporter' channel binding (#1760)
Brings back SCRAM-SHA-*-PLUS from its hiatus brought on by the earlier
channel binding method being undefined for TLS 1.3, and the increasing
deployment of TLS 1.3.
See 1bfd238e05ad and #1542
Requires future version of LuaSec, once support for this key material
export method is merged.
See https://github.com/brunoos/luasec/pull/187
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 01 Jun 2022 15:06:59 +0200 |
parent | 12355:a0ff5c438e9d |
line wrap: on
line source
local s_char = string.char; local s_format = string.format; local s_gsub = string.gsub; local s_lower = string.lower; local char_to_hex = {}; local hex_to_char = {}; do local char, hex; for i = 0,255 do char, hex = s_char(i), s_format("%02x", i); char_to_hex[char] = hex; hex_to_char[hex] = char; end end local function to(s) return (s_gsub(s, ".", char_to_hex)); end local function from(s) return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char)); end return { encode = to, decode = from; -- COMPAT w/pre-0.12: to = to, from = from; };