A safe distribution scheme of sensitive data based on full homomorphic encryption model

Research on anonymous auxiliary road condition detection scheme based on crowdsourcing

“…Homomorphic Encryption can be divided into Semi-Homomorphic Encryption, which only supports one operation in addition or multiplication [11] . Partially Homomorphic Encryption has infinite addition homomorphism and onemultiplication homomorphism [12] ; Full Homomorphic Encryption [13] , in the case of unknown key, the ciphertext for an infinite number of arbitrary calculations, refers to any valid f and plaintext, has the property 𝑓(𝐸𝑛𝑐(𝑚)) = 𝐸𝑛𝑐(𝑓(𝑚)). Homomorphic encryption is widely applied in cloud computing, machine learning for privacy protection, ciphertext retrieval, secure multi-party computing, federated learning, data exchange and sharing, etc.…”