On the Security of Keyed-Homomorphic PKE: Preventing Key Recovery Attacks and Ciphertext Validity Attacks
論文ID: 2020EAL2039
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論文ID: 2020EAL2039
In this short note, we formally show that Keyed-Homomorphic Public Key Encryption (KH-PKE) is secure against key recovery attacks and ciphertext validity attacks that have been introduced as chosen-ciphertext attacks for homomorphic encryption.
