Trust Based Ciphertext Policy Attribute Based Encryption Techniques for Decentralized Disruption Tolerant Networks
Elumalaivasan Poongavanam, Kulothungan Kanagasabai, Sannasi Ganapathy, A. Kannan · SSRN Electronic Journal · 2016
In extreme wireless network environment, Mobile Nodes suffers from inter communication such as military networks and hostile environments. Disruption Tolerant Networks (DTNs) technologies provide challenging and successful solutions for end to end connection between nodes. In this network, the encrypted data is stored in the external storage node and retrieved it by decryption from it, as the confidential data to be retrieved securely it has to consider some security sch0065mes.Attribute Based Encryption (ABE) is a new approach to cryptography that full fills the requirements for secure data retrieval in DTNs. The existing system involves some challenging issues like intimacy, attribute update and trust management and in Cipher text Policy Attribute Based Encryption (CP-ABE) having key updating issue. To overcome this, we propose a new scheme in this paper for securing the data accessed which is based on the Trust based Cipher text Policy Attribute based Encryption (TCP ABE) scheme which provides a scalable way for confidential data retrieval and reduce complexity. In addition, the location of the node is also traced by using network protocols to make more flexible and for easy communication between surrounding nodes. Here various key authorities maintain their attributes independently. In addition, trust values are calculated for each node and updated in the trust table each and every time. This proposed method provides enhanced security using trust based encryption technique when compared with the other existing approaches.