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@rietta
Last active January 12, 2016 04:31
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Encrypts a hello world greeting to my personal public PGP key that's published at https://keybase.io/rietta.
SELECT
ARMOR(PGP_PUB_ENCRYPT(
'Hello, World',
DEARMOR('-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2
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iChky5yTrKJ3i5GikdTSeb1VSGOCjg==
=Q+PC
-----END PGP PUBLIC KEY BLOCK-----')
)) AS message;
@rietta
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Author

rietta commented Jan 5, 2016

One example invocation resulted in:

-----BEGIN PGP MESSAGE-----

wcFMAx79Htw/t0ZjARAAhOBYc8/7sQcIIBwKxP8P61LcA0LtYSnMeVCiwnzfzCSeT+UvhCKhCkBI
4NvsjrKlCTJv+qYu3suIRXhS5jhuVK5PDoqcX8oPBHh8bMHkn3hX5Ze16S4PHJlWeWCf6R4VW94M
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gdKEcMIBttzFj59WIWt+GP7N3yNBEIi5hdMfmfJ6nSZttvW6xybQk2ZdE/RJHrBSOWZWZ4/cImMu
T6wS/TVUYh1Lm6wp5SeqfAW3T+BGyyS7cy6cKlZCzVaG7/uV/+LJIEZfAkH1I+NqPP+/AvP2t7ml
2gsHs3+xcyWYAXhoQP/rd0iLWD5Icj7tl2zUt7cauSuufG+KgCZreTS4sh/knqF0nxb49CGYM6AY
S0o3GsRnsDW1DYZPFI6m5JpqJYTnZdA6csmTaAo696wKxfKPZF+NyqAdPnISKcCkeXUISZNpRU9o
iSa4qzrdyV/1TpfXptdw3eVDxjLtXOHjWn5DT1ayYl6+k3jcoTMCLSBiPerGY4qK/2XQTW2G+ZEM
R34OD3v9yvMi9X6/aW07fiKq07iRb8nh8IoMJTXhji+ZjZXINFt7RNqBdPfkpRf/A4ubXQW+zCuk
8q1XjGwX9dlbir2/7H7SPQHfq07Scf5g8+UWpuCSixpczy/kia06hZpn6Aguv1WA6/un0CPYaZy1
cloSuhBkBr2ifo95f3VlkkzyelY=
=8Ufw
-----END PGP MESSAGE-----

Which I can decrypt, but no one else can.

@wireddude
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Cool!

@rietta
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rietta commented Jan 6, 2016

These are the setup instructions on a brand new Ubuntu Linux server instance (probably also applies to Debian).

Install both postgresql and postgresql-contrib (important).

sudo apt-get install postgresql postgresql-contrib

Enabling pgcrypto for a database requires superuser privileges so,

sudo su -l postgres
ENTER YOUR SUDO PASSWORD

psql project_database
CREATE EXTENSION pgcrypto;
\q
exit

Return to your project database needs using the regular non-root, non-admin user with access to the encryption database encryption functions documented in http://www.postgresql.org/docs/9.4/static/pgcrypto.html.

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