Fast Bootstrapping in Z_q
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Date
2015-08-28
Authors
Ruiz Lopez, Luis A
Advisor
Journal Title
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Volume Title
Publisher
University of Waterloo
Abstract
In 2015, Ducas and Micciancio presented a novel technique to compute the NAND gate using the Learning With Errors cryptosystem (LWE), along with a novel bootstrapping technique that turns turns this cryptosystem into a fully-homomorphic encryption scheme that allows a very short and fast implementation. We present an extension of their bootstrapping technique that allows refreshing encryptions of elements in Z_p and the homomorphic computation of arbitrary gates, alongside with an implementation that exploits the power of parallel computation.
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Keywords
Cryptography, Fully-Homomorphic Encryption, FHEW, Parallelization, Cyclotomic fields