Function lbcrypto::GetCollapsedFFTParams

• Defined in File ckksrns-utils.cpp

Function Documentation

std::vector<int32_t> lbcrypto::GetCollapsedFFTParams(uint32_t slots, uint32_t levelBudget = 4, uint32_t dim1 = 0)

Computes all parameters needed for the homomorphic encoding and decoding in the bootstrapping operation and returns them as a vector. The returned vector’s data can be accessed using enum’ed indices from CKKS_BOOT_PARAMS that are defined below.

Parameters

• slots – number of slots

• levelBudget – the allocated level budget for the computation.

• dim1 – the value for the inner dimension in the baby-step giant-step strategy

Returns

vector with parameters for the homomorphic encoding and decoding in bootstrapping