SECURED DATA RETRIEVAL IN MILITARY APPLICATIONS USING CP-ABE

Abstract

Disruption-tolerant network (DTN) technologies are only solutions for military environment because of their mobile nodes irregular network connectivity and frequent partitions. But due to its nature of having external storage node during the transmission there is chance of getting exploited. Cipher text-policy attribute-based encryption(CP-ABE), is a good solution however, the problem of applying CP-ABE in decentralized DTNs introduces several security and privacy challenges with regard to the attribute revocation, key escrow, and coordination of attributes issued from different authorities.Some users (receivers) may change their associated attributes at some point (for example moving their region) here there is a need of attribute updation and also provides forward and backward secrecy for the attribute revocation problem. So we proposed a system that provides a multi authority CP-ABE scheme for secure data retrieval in decentralized DTNs a variation of the CP-ABE algorithm that overcomes the attribute revocation problem.