Enhanced Selective Encryption method for Bigdata Sensing Stream using one way Hash Chain Algorithm

Author(s):  
S. Nagaraj ◽  
E. Mohanraj
2006 ◽  
Vol 13C (7) ◽  
pp. 843-850 ◽  
Author(s):  
Chan-Kil Park ◽  
Jung-Jae Kim ◽  
Kyung-Seok Lee ◽  
Moon-Seog Jun

Author(s):  
Amal Ahmad ◽  
Shereen Ismail

<span>Security issue is getting important day by day. At present, there are a variety of methodologies to provide protection for data confidentiality. MANETs have lots of security challenges than traditional networks like infrastructureless and self-organizing requirements. As the MANETs are dynamic networks that’s make every transmission in such networks vulnerable to many attacks and improving security level becomes a main issue. This paper introduces a user selective encryption method by operating Data Encryption Standard (DES), Triple DES (3DES), Advanced Encryption Standard (AES) and the Diffie-Hellman Key Exchange (DHKE) protocol for key management in order to improve MANET security. Through the Network Simulator-2 (NS-2), the we investigate the performance of the proposed method in terms of data transfer time and network throughput for different data sizes and different sender-to-receiver number of hops. The results show the superiority of AES over other encryption algorithms. Furthermore, the effectiveness of our proposed method is verified through comparing our results with those obtained from previous studies.</span>


In recent era security is very much desired for the messages transmitted through the network. The study shows that, even though many approaches have been proposed towards security till date, still the security loopholes also emerging, so constant advancement is crucial for data security. Since all nodes in the network work together as a team to transmit the data, the network may prone to active or passive attacks such as Eavesdropping, Jamming, traffic analysis, Denial of Service, monitoring etc. The research paper introduces a new selective encryption method termed as Selective Significant Data Encryption (SSDE). The SSDE presents adequate protection to the data encryption process by picking up only the significant content from the complete message by referring Natural Language Processing (NLP). As a result, the encryption time overhead will get reduced, and overall performance will improve. Symmetric key algorithms are generally proficient and quick cryptosystem compared to other techniques, so Blowfish system is used for encryption/decryption process. The proposed research work is compared with many conventional methods and found that this approach is more superior to other traditional means.


2019 ◽  
Vol 5 (3) ◽  
pp. 379-392 ◽  
Author(s):  
Deepak Puthal ◽  
Xindong Wu ◽  
Nepal Surya ◽  
Rajiv Ranjan ◽  
Jinjun Chen

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