Encrypt Data using Public Key

Question

$key = file_get_contents('http://keyserver.pramberger.at/pks/lookup?op=get&search=uid');

after getting public key in '$key' variable i need to encrypt the data using this public key. the key must be start with ----Begin pgp block ---to end pgp block----. How this can be done in php?

Answer 1

Maybe this article about Encryption and Decryption using PHP and GnuPG (found via Google) helps you.

And there is also a PHP module to interact with GnuPG.

Afaik, GPG is compatible with PGP.