Lecture

Fully Homomorphic Encryption (FHE)

Description

This lecture introduces Fully Homomorphic Encryption (FHE) based on Gentry's scheme from 2009, explaining the process of homomorphic decryption, encryption, and multiplication. It covers the importance of choosing a small random integer for encryption, the necessity of correct decryption, and the growth of noise in the resulting ciphertext. The lecture emphasizes the limited homomorphic capacity and the correct evaluation of homomorphic multiplication.

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