Secure Data Retrieval Using Access Policies in Ciphertext Policy Attribute Based Encryption

Abstract: Mobile nodes in military environments like a arna or a hostile region are doubtless to suffer from intermittent network property and frequent partitions. Disruption-tolerant network (DTN) technologies are getting no- hit solutions that enable wireless devices carried by militia to speak with one another and access the steer. Several militia applications need multiplied protection of confidential knowledge together with access management ways that are cryptographically enforced. Attribute-based secret writing (ABE) may be a promising approach that fulfils the wants for secure knowledge retrieval in DTNs. However, the matter of applying the ABE to DTNS introduces many security and privacy challenges. Since some users might modification their associated attributes at some purpose key revocation for every attribute is critical so as to form systems secure. Cipher text policy attribute-based secret writing (CP-ABE) may be a promising scientific discipline answer to the access management problems. However, the matter of applying CP-ABE in suburbanised DTNs introduces many security and privacy challenges with relevancy the attribute revocation, key escrow. Here, we have a tendency to propose a secure knowledge retrieval theme victimization CP- ABE for suburbanised DTNs wherever multiple key authorities manage their attributes severally. We'll offer the way to apply the planned mechanism to firmly and with efficiency manage the confidential knowledge distributed within the DTN.

Keyword: Disruption-tolerant networks, Cipher text policy attribute-based secret writing.