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Added GGSW key-switching along with algo description

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Jean-Philippe Bossuat
2025-05-20 11:43:18 +02:00
parent 8f2eac4928
commit 06b3cccbff
7 changed files with 272 additions and 51 deletions
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10
core/src/keyswitch_key.rs
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@@ -1,6 +1,6 @@
use base2k::{
Backend, FFT64, MatZnxDft, MatZnxDftOps, MatZnxDftToMut, MatZnxDftToRef, Module, ScalarZnx, ScalarZnxDft, ScalarZnxDftToRef,
ScalarZnxToRef, Scratch, VecZnxDft, VecZnxDftAlloc, VecZnxDftToMut, VecZnxDftToRef, ZnxZero,
ScalarZnxToRef, Scratch, VecZnxDftAlloc, VecZnxDftToMut, VecZnxDftToRef, ZnxZero,
};
use sampling::source::Source;
@@ -74,9 +74,9 @@ impl<C> GetRow<FFT64> for GLWESwitchingKey<C, FFT64>
where
MatZnxDft<C, FFT64>: MatZnxDftToRef<FFT64>,
{
fn get_row<R>(&self, module: &Module<FFT64>, row_i: usize, col_j: usize, res: &mut GLWECiphertextFourier<R, FFT64>)
fn get_row<R>(&self, module: &Module<FFT64>, row_i: usize, col_j: usize, res: &mut R)
where
VecZnxDft<R, FFT64>: VecZnxDftToMut<FFT64>,
R: VecZnxDftToMut<FFT64>,
{
module.vmp_extract_row(res, self, row_i, col_j);
}
@@ -86,9 +86,9 @@ impl<C> SetRow<FFT64> for GLWESwitchingKey<C, FFT64>
where
MatZnxDft<C, FFT64>: MatZnxDftToMut<FFT64>,
{
fn set_row<R>(&mut self, module: &Module<FFT64>, row_i: usize, col_j: usize, a: &GLWECiphertextFourier<R, FFT64>)
fn set_row<R>(&mut self, module: &Module<FFT64>, row_i: usize, col_j: usize, a: &R)
where
VecZnxDft<R, FFT64>: VecZnxDftToRef<FFT64>,
R: VecZnxDftToRef<FFT64>,
{
module.vmp_prepare_row(self, row_i, col_j, a);
}