چکیده (انگلیسی):

The comparative analysis of the renowned cryptographic
algorithms AES, DES and RSA. The Rijndael algorithm was adapted as
Advanced Encryption Standard (AES) algorithm, to Data Encryption
algorithm (DES), which have been in the security standards since long
time. The comparative analysis is implemented in IEEE 802.11i
wireless platform. Compared to DES, AES contains CCMP which is a
security standard that provides the highest level of security to encrypt
and authenticate the data simultaneously. CCMP protocol is to provide
robust security. The CCMP protocol is based on Advanced Encryption
Standard (AES) encryption algorithm. It uses the Counter Mode with
CBC-MAC (CCM) mode of operation. The CCM mode combines
Counter (CTR) mode for privacy and Cipher Block Chaining Message
Authentication Code (CBC-MAC) for authentication. The
implementation is done on the NS-2 platform to compare and analyzes
the performance of this with DES and RSA algorithms, based on the
following three criteria: (a) Bit rate; (b) Packet delay; and (c) The
number of packets. Thus the motivation is to provide a secure data
transfer in the wireless medium in IEEE 802.11i.