For reference, read RFC2440. Due to some possible security problems,
the library also implements parts of
draft-ietf-openpgp-rfc2440bis-06.txt.

The aim of the library is not to replace any available OpenPGP version.
There is no real support for key management (sign, revoke, alter
preferences, etc.) and some other parts are only rudimentarily
available. The main purpose is to handle and understand OpenPGP packets
and to use basic operations. For example, to encrypt and decrypt, sign
and verify, and provide packet routines.