An Indistinguishably Secure Function Encryption Scheme

Ping Zhang, Yamin Li, Muhua Liu
2019 Security and Communication Networks  
In this work, we first design a function encryption scheme by using key encapsulation. We combine public key encryption with symmetric encryption to implement the idea of key encapsulation. In the key encapsulation, we use a key to turn a message (plaintext) into a ciphertext by symmetric encryption, and then we use public key encryption to turn this key into another ciphertext. In the design of function encryption scheme, we use the public key encryption system, symmetric encryption system,
more » ... interactive proof system, indistinguishable obfuscator, and commitment scheme. Finally, we prove the indistinguishable security of our function encryption scheme.
doi:10.1155/2019/8567534 fatcat:ra5nwpp7snhhjir24avb3xbkfi