Details

Autor(en) / Beteiligte

• Doshi, Nishant

Titel

AN ENHANCED APPROACH FOR CP-ABE WITH PROXY RE-ENCRYPTION IN IOT PARADIGM

Ist Teil von

• Jordanian journal of computers and information technology (Online), 2022-09, Vol.8 (3)

Ort / Verlag

Amman: Scientific Research Support Fund of Jordan Princess Sumaya University for Technology

Erscheinungsjahr

2022

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• In Internet of Things (IoT), encryption is a technique in which plaintext is converted to ciphertext into make it non-recovered by the attacker without secret key. Ciphertext policy attribute-based encryption (CP-ABE) is an encryption technique aimed at multicasting feature; i.e., user can only decrypt the message if the policy of attributes mentioned in the ciphertext is satisfied by the user’s secret key attributes. In literature, the authors have improvised the existing technique to enhance the naïve CP-ABE scheme. Recently, in 2021, Wang et al. have proposed the CP-ABE scheme with proxy re-encryption and claimed it to be efficient as compared to its predecessors. However, it follows the variable-length ciphertext in which the size of ciphertext is increased with the number of attributes. Also, it leads to computation overhead on the receiver during decryption which will be performed by the IoT devices. Thus, in this paper, we have proposed on improved scheme to provide the constant-length ciphertext with proxy re-encryption to reduce the computation and communication time. The proposed scheme is secured under Decisional Bilinear Diffie-Hellman (DBDH) problem.