Boneh-Boyen IBE

Identity-based encryption (IBE) is a form of public key infrastructure (PKI) which has become a hot topic of research among the research community as IBE enables senders to encode data without interfering with the public key certificate. IBE computes the public key from the unique recipient’s identity and authenticates by a third party so as to overcome the limitations faced by traditional cryptographic techniques. In 2004, D. Boneh and X. Boyen worked towards IBE without using random oracles which is one of the most popular and efficient IBE techniques. This chapter focuses on the Boneh-Boyen IBE technique which is based on selective identity and gives good results in standard model. It also enlightens on the basic IBE model introduction and its working to get a clear idea about IBE. Later on, this document covers the Boneh-Boyen basic scheme that is classified into two categories, additive scheme and multiplicative scheme. These schemes are explained in detail with the help of four main stages: parameter setup, extraction, encryption, and decryption process. Apart from the basic scheme, Boneh-Boyen full scheme is explained here which helps to compute the public key of the receiver. At the end, the chapter emphasizes on the security concept of the Boneh-Boyen IBE. © 2021, Springer Nature Switzerland AG.

• Ankita Karale
• Vladimir Poulkov
• Milena Lazarova
• Pavlina Koleva

EAI/Springer Innovations in Communication and Computing, Pages 151 – 170, 2021

https://link.springer.com/chapter/10.1007/978-3-030-60890-3_9