How can we encrypt a database using AES algoritham?

Answer 1

TrueCrypt is *disk* encryption software. If what you want to encrypt is just a file (containing the database), then what you really need is *file* encryption software.

See the link below for a free implementation of AES - comes with source, too.

Answer 2

Try open source TrueCrypt (http://www.truecrypt.org/). For instructions on how to use it, read (http://www.lifehacker.com/software/top/geek-to-live--encrypt-your-data-178005.php)
It features include:


T r u e C r y p t
Free open-source disk encryption software for Windows XP/2000/2003 and Linux
Main Features:

* Creates a virtual encrypted disk within a file and mounts it as a real disk.

* Encrypts an entire hard disk partition or a storage device such as USB flash drive.

* Encryption is automatic, real-time (on-the-fly) and transparent.

* Provides two levels of plausible deniability, in case an adversary forces you to reveal the password:

1) Hidden volume (steganography – more information may be found here).

2) No TrueCrypt volume can be identified (volumes cannot be distinguished from random data).

* Encryption algorithms: AES-256, Blowfish (448-bit key), CAST5, Serpent, Triple DES, and Twofish.
Mode of operation: LRW (CBC supported as legacy).

Answer 3

You need to be more specific about the requirements.

Do you want to encrypt the database file such as *.mdf or *.ldf

or

Do you want to encrypt any particular column with in the database.

Also which database do you want to encrypt.

Provide more details.

Find more security information at http://www.webinfosec.com