Practical Homomorphic Evaluation of Block-Cipher-Based Hash Functions with Applications

ePrint Report: Practical Homomorphic Evaluation of Block-Cipher-Based Hash Functions with Applications

Adda-Akram Bendoukha, Oana Stan, Renaud Sirdey, Nicolas Quero, Luciano Freitas

Fully homomorphic encryption (FHE) is a powerful cryptographic technique allowing to perform computation directly over encrypted data. Motivated by the overhead induced by the homomorphic ciphertexts during encryption and transmission, the transciphering technique, consisting in switching from a symmetric encryption to FHE encrypted data was investigated in several papers. Different stream and block ciphers were evaluated in terms of …

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