AES encryption


 
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# 1  
Old 03-10-2009
AES encryption

Hi,
Any body can please point me to source code for implementing AES encryption in CTR mode i.e RFC 3686 (AES-CTR).I did googling but no good results.
# 2  
Old 03-10-2009
# 3  
Old 03-10-2009
# 4  
Old 03-10-2009
Yeah but he wanted it in counter mode. That code is cipher block chaining mode. CBC is what almost everyone uses.

Block cipher modes of operation - Wikipedia, the free encyclopedia
# 5  
Old 03-10-2009
Quote:
Originally Posted by Perderabo
Yeah but he wanted it in counter mode. That code is cipher block chaining mode. CBC is what almost everyone uses.

Block cipher modes of operation - Wikipedia, the free encyclopedia
Maybe he could search Koders for AES counter mode.....
# 6  
Old 03-10-2009
Here it is, it seems Smilie

Koders Code Search: aes_ctr.c - C
# 7  
Old 03-10-2009
Great find!

Code:
/* NOTE: CTR mode is big-endian.  The rest of the AES code
 * is endian-neutral. */

And that may be why you so seldom see CTR mode. Interesting observation anyway.
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