Noah's Ark: Efficient Threshold-FHE Using Noise Flooding

ePrint Report: Noah's Ark: Efficient Threshold-FHE Using Noise Flooding

Morten Dahl, Daniel Demmler, Sarah Elkazdadi, Arthur Meyre, Jean-Baptiste Orfila, Dragos Rotaru, Nigel P. Smart, Samuel Tap, Michael Walter

We outline a secure and efficient methodology to do threshold distributed decryption for LWE based Fully Homomorphic Encryption schemes. The only ``difficult'' case being that of TFHE (due to the small parameters used in this scheme). We show that the standard technique of ``noise flooding'' can also be used with schemes with …

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