AES suitable for protecting Top Secret information

Steve Bellovin smb at research.att.com
Wed Apr 14 08:43:03 EDT 2004


I haven't seen this mentioned on the list, so I thought I'd toss it 
out.  According to http://www.nstissc.gov/Assets/pdf/fact%20sheet.pdf ,
AES is acceptable for protecting Top Secret data.  Here's the crucial 
sentence:

   The design and strength of all key lengths of the AES algorithm
   (i.e., 128, 192 and 256) are sufficient to protect classified
   information up to the SECRET level. TOP SECRET information will
   require use of either the 192 or 256 key lengths.


		--Steve Bellovin, http://www.research.att.com/~smb


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