[general] Encrypting/Decryption

Hi Venktesh,

Following is small test case:
======================

leon=# create table demo(pw bytea);
CREATE TABLE
leon=# insert into demo(pw) values ( encrypt( 'data', 'key', 'aes') );
INSERT 0 1
leon=# select decrypt(pw, 'key', 'aes') FROM demo;
decrypt
------------
\x64617461
(1 row)

leon=# select convert_from(decrypt(pw, 'key', 'aes'), 'utf-8') FROM demo;
convert_from
--------------
data
(1 row)

BTW, please think carefully about whether PgCrypto is really the right
choice. Keys in your queries can be revealed in pg_stat_activity and the
system logs via log_statement or via crypto statements that fail with an
error.

You can follow the below link for more information regarding the encryption
options:

http://www.postgresql.org/docs/9.3/static/encryption-options.html

Hope this helps.

Thanks & Regards,
Naveed Shaikh
Senior Systems Engineer

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On Mon, Nov 17, 2014 at 4:53 PM, VENKTESH GUTTEDAR <
venkteshguttedar@gmail.com> wrote:

On Mon, 17 Nov 2014 16:53:43 +0530
VENKTESH GUTTEDAR <venkteshguttedar@gmail.com> wrote:

Hello,

As i am new to postgresql and django. please help me to acheive the
following.

I have created a database with some tables and i want to encrypt the
data in database tables, so please someone guide me how to do it.?

i want to encrypt the data and also decrypt through django, so tell me
which is right way either to use pgcrypto or pycryto,
i am not understanding neither of them. please help.

I have seen cryptography implemented badly (and by badly, I mean that the
cryptography is just as unsecured as if it wasn't encrypted).

The way in which you're asking leads me to believe that you have a LOT to
learn before you can properly implement cryptographic storage. I recommend
you take a step back and consider the fact that you're far better off
doing the research until you know enough to pick between pgcrypto and
pycrypto on your own.

--
Bill Moran
I need your help to succeed:
http://gamesbybill.com

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