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--[[
* px5g - Embedded x509 key and certificate generator based on PolarSSL
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License, version 2.1 as published by the Free Software Foundation.
]]--
local nixio = require "nixio"
local table = require "table"
module "px5g.util"
local preamble = {
key = "-----BEGIN RSA PRIVATE KEY-----",
cert = "-----BEGIN CERTIFICATE-----",
request = "-----BEGIN CERTIFICATE REQUEST-----"
}
local postamble = {
key = "-----END RSA PRIVATE KEY-----",
cert = "-----END CERTIFICATE-----",
request = "-----END CERTIFICATE REQUEST-----"
}
function der2pem(data, type)
local b64 = nixio.bin.b64encode(data)
local outdata = {preamble[type]}
for i = 1, #b64, 64 do
outdata[#outdata + 1] = b64:sub(i, i + 63)
end
outdata[#outdata + 1] = postamble[type]
outdata[#outdata + 1] = ""
return table.concat(outdata, "\n")
end
function pem2der(data)
local b64 = data:gsub({["\n"] = "", ["%-%-%-%-%-.-%-%-%-%-%-"] = ""})
return nixio.bin.b64decode(b64)
end
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