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- W3133677173 abstract "The Ring Learning with Errors (RLWE) problem has become one of the most widely used cryptographic assumptions for the construction of modern cryptographic primitives. Most of these solutions make use of power-of-two cyclotomic rings mainly due to its simplicity and efficiency. This work explores the possibility of substituting them for multiquadratic rings and shows that the latter can bring about important efficiency improvements in reducing the cost of the underlying polynomial operations. We introduce a generalized version of the fast Walsh-Hadamard Transform which enables faster degree-n polynomial multiplications by reducing the required elemental products by a factor of O(log n). Finally, we showcase how these rings find immediate application in the implementation of OLE (Oblivious Linear Function Evaluation) primitives, which are one of the main building blocks used inside Secure Multiparty Computation (MPC) protocols." @default.
- W3133677173 created "2021-03-15" @default.
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- W3133677173 date "2020-12-06" @default.
- W3133677173 modified "2023-10-16" @default.
- W3133677173 title "Multiquadratic Rings and Walsh-Hadamard Transforms for Oblivious Linear Function Evaluation" @default.
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- W3133677173 doi "https://doi.org/10.1109/wifs49906.2020.9360891" @default.
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