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LinearTransformationDiagonal

poulpy_core::layouts

Struct LinearTransformationDiagonal 

Source 
pub struct LinearTransformationDiagonal<P> {
    pub baby: i64,
    pub plaintext: P,
}
Expand description

One non-zero diagonal of the linear map, attached to a giant step.

plaintext is the pre-rotated diagonal u~_{j,k} = rot(diag_{n1*j+k}, -n1*j), already encoded as a plaintext polynomial. baby is the baby-step slot rotation k whose prepared rot(v, k) it multiplies.

Fields§

§baby: i64

Baby-step slot rotation.

§plaintext: P

Pre-rotated diagonal, encoded as a plaintext polynomial.

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