pgp encryption functions

Hello,
I'm trying to use the pgp_pub_encrypt and pgp_pub_decrypt_bytea
functions to store some data in my db.

This is how I encrypt:

INSERT INTO "Test"(
"test")
VALUES (pgp_pub_encrypt('test', dearmor('-----BEGIN PGP PUBLIC KEY
BLOCK-----
Version: GnuPG v2.0.12 (MingW32)

mQENBErk2KkBCAC.... (public key block) ...
-----END PGP PUBLIC KEY BLOCK-----
')));

And this is how I try to decrypt:

SELECT pgp_pub_decrypt_bytea(bytea ("test"), dearmor('-----BEGIN PGP
PRIVATE KEY BLOCK-----
Version: GnuPG v2.0.12 (MingW32)

lQO+BErk2KkBC... (private key block) ...
-----END PGP PRIVATE KEY BLOCK-----
'), 'ktulu3437') --> this is the passphrase
FROM "Test";

Encryptions works fine, but the decrypting returns "Corrupt data".
What am I doing wrong?

Christian Petzold.