Software / code / prosody
Changeset
6152:fbab74c28e31
util.x509: And functions for converting between DER and PEM
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Thu, 24 Apr 2014 23:38:47 +0200 |
| parents | 6149:2ae6e9063e88 |
| children | 6153:8fb54ec34741 |
| files | util/x509.lua |
| diffstat | 1 files changed, 20 insertions(+), 0 deletions(-) [+] |
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--- a/util/x509.lua Wed Apr 23 00:22:36 2014 +0200 +++ b/util/x509.lua Thu Apr 24 23:38:47 2014 +0200 @@ -20,6 +20,7 @@ local nameprep = require "util.encodings".stringprep.nameprep; local idna_to_ascii = require "util.encodings".idna.to_ascii; +local base64 = require "util.encodings".base64; local log = require "util.logger".init("x509"); local pairs, ipairs = pairs, ipairs; local s_format = string.format; @@ -214,4 +215,23 @@ return false end +local pat = "%-%-%-%-%-BEGIN ([A-Z ]+)%-%-%-%-%-\r?\n".. +"([0-9A-Za-z+/=\r\n]*)\r?\n%-%-%-%-%-END %1%-%-%-%-%-"; + +function pem2der(pem) + local typ, data = pem:match(pat); + if typ and data then + return base64.decode(data), typ; + end +end + +local wrap = ('.'):rep(64); +local envelope = "-----BEGIN %s-----\n%s\n-----END %s-----\n" + +function der2pem(data, typ) + typ = typ and typ:upper() or "CERTIFICATE"; + data = base64.encode(data); + return s_format(envelope, typ, data:gsub(wrap, '%0\n', (#data-1)/64), typ); +end + return _M;
