Privacy-Preserving and Pairing-Free Multi-Recipient Certificateless Encryption with Keyword Search for Cloud-Assisted IIoTs

Nowadays, cloud-assisted Industrial Internet of Things (IIoT) has become pervasive in modern enterprises, because it supplies a promising way to transform the operation mode of existing industrial facilities, to enhancing the production efficiency and lowering the manufacturing cost. In order to preserve the privacy of enterprises, sensitive industrial data needs to be encrypted prior to being upl...