-- -- Public domain -- local socket = require("socket") local ssl = require("ssl") -- @param identity (string) -- @param max_psk_len (number) -- @return psk (string) local function pskcb(identity, max_psk_len) print(string.format("PSK Callback: identity=%q, max_psk_len=%d", identity, max_psk_len)) if identity == "abcd" then return "1234" end return nil end local params = { mode = "server", protocol = "any", options = "all", psk = pskcb, } -- [[ SSL context local ctx = assert(ssl.newcontext(params)) --]] local server = socket.tcp() server:setoption('reuseaddr', true) assert( server:bind("127.0.0.1", 8888) ) server:listen() local peer = server:accept() peer = assert( ssl.wrap(peer, ctx) ) assert( peer:dohandshake() ) print("--- INFO ---") local info = peer:info() for k, v in pairs(info) do print(k, v) end print("---") peer:close() server:close()