The expanding and ubiquitous availability of the Internet Things (IoT) have changed everyone’s life easier more convenient. Same time it also offers a number issues, such as effectiveness, security, excessive power consumption, which constitute danger to intelligent IoT-based apps. Group managing is primarily used for transmitting multi-pathing communications that are secured with general group...

In functional encryption (FE) schemes, ciphertexts and private keys are associated with attributes and decryption is possible whenever key and ciphertext attributes are suitably related. It is known that expressive realizations can be obtained from a simple FE flavor called inner product encryption (IPE), where decryption is allowed whenever ciphertext and key attributes form orthogonal vectors...

In functional encryption (FE) schemes, ciphertexts and private keys are associated with attributes and decryption is possible whenever key and ciphertext attributes are suitably related. It is known that expressive realizations can be obtained from a simple functional encryption flavor called inner product encryption (IPE), where decryption is allowed whenever ciphertext and key attributes form...