[Chicago] encrypting 5gb files?

DiPierro, Massimo MDiPierro at cs.depaul.edu
Wed Nov 26 21:04:29 CET 2008

In CRC mode, if the plaintext is long, brute force attacks become unfeasible, even if the encryption algorithm is fast. Even for encryption algorithms, speed should be considered a plus, not a minus.

From: chicago-bounces+mdipierro=cs.depaul.edu at python.org [chicago-bounces+mdipierro=cs.depaul.edu at python.org] On Behalf Of Tim Saylor [tim.saylor at gmail.com]
Sent: Wednesday, November 26, 2008 1:37 PM
To: The Chicago Python Users Group
Subject: Re: [Chicago] encrypting 5gb files?

In general speed is the enemy of security in encryption.  The faster you can encrypt/decrypt the file, the faster someone can crack it.

On Wed, Nov 26, 2008 at 1:15 PM, Lukasz Szybalski <szybalski at gmail.com<mailto:szybalski at gmail.com>> wrote:

I was wondering if somebody could suggest a fast encryption algorithm
that I could use to encrypt 5gb files.
What I'm trying to do is create backup files on amazon S3 servers
which allow you to upload up to 5bg per files. Since the data I'm
uploading is very sensitive I want to encrypt the files.

I'm looking for a algorithm or a tool that would allow me to
encrypt/decrypt the file at a reasonable speed and goods security.

Let me know,

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