Aggregatable Certificateless Designated Verifier Signature

In recent years, the Internet of Things (IoT) devices have become increasingly deployed in

many industries and generated a large amount of data that needs to be processed in a timely and efficient

manner. Using aggregate signatures, it provides a secure and efficient way to handle large numbers of digital

signatures with the same message. Recently, the privacy issue has been concerned about the topic of data

sharing on the cloud. To provide the integrity, authenticity, authority, and privacy on the data sharing in the

cloud storage, the notion of an aggregatable certificateless designated verifier signature scheme (ACLDVS)

was proposed. ACLDVS also is a perfect tool to enable efficient privacy-preserving authentication systems

for IoT and or the vehicular ad hoc networks (VANET). Our concrete scheme was proved to be secured

underling of the Computational Diffie-Hellman assumption. Compared to other related schemes, our scheme

is efficient, and the signature size is considerably short.