LinuxQuestions.org
Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Security
User Name
Password
Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.

Notices

Reply
 
Search this Thread
Old 08-08-2007, 06:37 AM   #1
mistersnorfles
Member
 
Registered: Aug 2007
Distribution: Gentoo 2007.0
Posts: 51

Rep: Reputation: 15
gpg -c: which cipher-algo?


As far as using gpg -c, which is the best cipher algorithm to choose (best meaning strongest, not fastest)?

Is conventional (keyless) encryption considered secure? How does it match up to private key encryption?

What types of attacks are there that are used to crack conventionally encrypted files?

Does anyone know of any good resources (preferably not too heavily mathematical) where I can read more about this?

Thanks,
Mr. Snorfles
 
Old 08-08-2007, 07:27 AM   #2
brianmcgee
Member
 
Registered: Jun 2007
Location: Munich, Germany
Distribution: RHEL, CentOS, Fedora, SLES (...)
Posts: 399

Rep: Reputation: 38
From the available ciphers (3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH)

I would prefer the Advanced Encryption Standard with 256 bits if I would need a high-level cryptography. Although I would use asymmetric encryption where possible.
 
Old 08-08-2007, 07:30 AM   #3
mistersnorfles
Member
 
Registered: Aug 2007
Distribution: Gentoo 2007.0
Posts: 51

Original Poster
Rep: Reputation: 15
Why AES256?

Why would you choose AES256 over the others? And what benefits are there for asymmetric encryption versus symmetric?

Which attacks make symmetric encryption more vulnerable?

--Mr. Snorfles

Last edited by mistersnorfles; 08-08-2007 at 07:31 AM.
 
Old 08-08-2007, 01:00 PM   #4
win32sux
Guru
 
Registered: Jul 2003
Location: Los Angeles
Distribution: Ubuntu
Posts: 9,870

Rep: Reputation: 371Reputation: 371Reputation: 371Reputation: 371
Quote:
Originally Posted by mistersnorfles
Why would you choose AES256 over the others?
Well, the choice comes down to personal preference, but if you read (for example) the Wikipedia page for AES you can get a good idea of why it's such a well-regarded block cipher.

Quote:
what benefits are there for asymmetric encryption versus symmetric?

Which attacks make symmetric encryption more vulnerable?
Once again, Wikipedia has a very informative page about this. There's also tons more info to be found via Google.
 
  


Reply

Tags
encryption, gpg


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Affine Cipher Gato Azul Programming 3 02-01-2013 01:47 PM
Cipher all data xanax Linux - Security 9 12-10-2006 02:35 AM
Running Key Cipher Herrkutt Programming 6 11-21-2006 05:33 AM
GCD Algo. Help dontcare Programming 2 10-16-2004 09:50 PM
Algo for Relatively prime No. LinuxTiro Programming 5 11-17-2003 09:02 PM


All times are GMT -5. The time now is 09:08 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration