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. 2020 Dec 8;22(12):e22555. doi: 10.2196/22555

Table 2.

Select parameters for Brakerski/Fan-Vercauteren homomorphic encryption.

Parameters param1 param2
Polynomial modulus 16,384 16,384
Coefficient modulus 438-bit integer 300-bit integer
Plaintext modulus 1125899904679937 Coefficient modulus of param1
Key distribution Uniform distribution {−1, 0, 1} Uniform distribution {−1, 0, 1}
Error distribution Discrete Gaussian distribution, with σ=3.2 Discrete Gaussian distribution with σ=3.2
Security level 128-bit 192-bit