Erlang SignedPublicKeyAndChallenge decoder

Espkac is a pure-Erlang decoder of SPKAC binary data.

Use cases

• HTML5 <keygen> element server-side handler
• common conversion of SPKAC to PEM

Usage

HTML5 KeyGen

QueryProps = mochiweb_util:parse_qs (RequestQueryString),
KeyGenData = proplists:get_value (my_keygen_field, QueryProps),
PubKeyPEM = espkac:spkac2pem (base64:decode (KeyGenData))

References

• https://developer.mozilla.org/en-US/docs/Web/HTML/Element/keygen
• http://en.wikipedia.org/wiki/SPKAC
• http://en.wikipedia.org/wiki/SPKI