Cryptography: Theory and Practice
Cryptography: Theory and Practice
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Security in Computing
Cryptography and Network Security (4th Edition)
Cryptography and Network Security (4th Edition)
Network Security Bible
Data Communications and Networking (McGraw-Hill Forouzan Networking)
Data Communications and Networking (McGraw-Hill Forouzan Networking)
A new cryptographic algorithm for the real time applications
ISP'08 Proceedings of the 7th WSEAS international conference on Information security and privacy
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The need for high Quality of Service QoS is one of the most demanding aspects in the Internet especially for Real-Time Applications RTA. Real-Time Applications services like IPTelephony, XoIP, Videoconferencing, Video on Demand (VOD), Audio Video on Demand (AVOD) and others become a successful business in the Internet; a lot of business organizations provide RTA services and make big business out of it. For this reason researchers put their efforts to find novel methods to enhance RTA QoS. In addition to the basic QoS already in use, customers are increasingly asking to maintain their confidentiality; and confidentiality enforces extra delay overhead which may contradicts with providing higher QoS. Our work consider the most demanding components of the RTA QoS, the confidentiality and delay time, the proposed algorithm tries to achieve better encryption/decryption process while maintaining minimal overhead delay by using simple symmetric algorithmic technique. The algorithm simplicity comes from the nature of the encipherment operations performed, the key selection process, the key size, the plaintext size and the algorithm complexity which is very small. The algorithm is dynamic since the plaintext size and the key size are variables. The experiment results show a faster encryption/decryption algorithm and less delay than the known conventional symmetric encryption techniques being used in RTA like AES. The services provided by the DCA-RTA algorithm can put the algorithm to be a better replacement of the conventional RTA encryption algorithms. Our previous work DEA-RTA [22] has been improved and renamed to Dynamic Cryptography Algorithm for Real-Time Applications DCA-RTA by amending the decryption algorithm in addition to enhancing the encryption part developed in our previous work.