Solved

Openssl encryption issues

Posted on 2013-05-13
2
355 Views
Last Modified: 2013-08-08
Hello,
I am using openssl to encrypt a largish file(50GB).  I have tried using aes128 and aes256, and both take around the same amount of time.  I would think that aes256 should take atlease 20% longer than 128, as the program should be doing 4 more iterations.  

I believe aes128 is 10 iterations, and aes256 is supposed to be 14, but based on my observations that may not be happening.  

Is anyone familiar with this tool, or is there a way I'd be able to tell if a file is properly encrypted?

Thanks for any help provided.
0
Comment
Question by:Alex Matzinger
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 37

Accepted Solution

by:
TommySzalapski earned 500 total points
ID: 39163217
The time it takes to read the file from the disk is probably going to be the biggest part of the task. Whether it computes something over each byte 10 times or 14 times could very well not affect the observable time it takes to run.

If you are doubting your tool, then just find another tool and run both. Check the output and if it matches, the tool is probably fine. AES is fairly common, so you should be able to find another tool that will run the same algorithm if you really feel the need to check.
0
 
LVL 4

Author Closing Comment

by:Alex Matzinger
ID: 39394785
Thank you for your assistance, i was able to use a couple other encryption tools to verify my results
0

Featured Post

Get MongoDB database support online, now!

At Percona’s web store you can order your MongoDB database support needs in minutes. No hassles, no fuss, just pick and click. Pay online with a credit card. Handle your MongoDB database support now!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Businesses who process credit card payments have to adhere to PCI Compliance standards. Here’s why that’s important.
The conference as a whole was very interesting, although if one has to make a choice between this one and some others, you may want to check out the others.  This conference is aimed mainly at government agencies.  So it addresses the various compli…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
Starting up a Project

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question