The encrypted_session module encrypts and decrypts nginx variables with
AES-256 in MAC mode, with an expiry stamp inside the ciphertext.  It is
meant for values that travel through the client, such as cookies, which the
server must be able to read back but the client must not forge.

This port only installs the module sources.  The module itself is built by
the nginx ports when their ENCRYPTSESSION option is enabled.
