Go Premium for a chance to win a PS4. Enter to Win



Posted on 2014-04-23
Medium Priority
Last Modified: 2014-04-23
I assume that AES 256 is the Advanced Encryption standard with 256 bit keys

For AES types, what is the highest AES level, and what is the lowest

Anything else I should know about AES256

Question by:Anthony Lucia
1 Comment
LVL 33

Accepted Solution

Dave Howe earned 2000 total points
ID: 40018236
I assume that AES 256 is the Advanced Encryption standard with 256 bit keys
That is correct, yes.

For AES types, what is the highest AES level, and what is the lowest
Supported block size is 128 bits, supported key sizes are 128, 192, and 256 bits.

Anything else I should know about AES256
AES is actually called Rijndael, and was the winner of a crypto competition to design the new American standard for encryption. Rijndael actually supports a wider range of block sizes and key sizes, but only the three listed are "officially" supported as AES.  
There is a related-key attack against AES in theory that makes 256 bit keys *weaker* than 192 bit ones. In practice though, this is not considered computationally feasible.
Both WinZip and 7-Zip support AES for encrypting archives (zipfiles)
Truecrypt supports AES for encrypting hard drives.
AES is a possible suite for SSL, and for IPSEC (vpn)

Probably lots more, but that's all I can think of interesting off the top of my head :)

Featured Post

New Tabletop Appliances Blow Competitors Away!

WatchGuard’s new T15, T35 and T55 tabletop UTMs provide the highest-performing security inspection in their class, allowing users at small offices, home offices and distributed enterprises to experience blazing-fast Internet speeds without sacrificing enterprise-grade security.

Question has a verified solution.

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

Experts Exchange expands question security options for members.
Your business may be under attack from a silent enemy that is hard to detect. It works stealthily in the shadows to access and exploit your critical business information, sensitive confidential data and intellectual property, for commercial gain. T…
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…

927 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