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Ref. + AVX code & generic tests + benches (#85)

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This commit is contained in:
Jean-Philippe Bossuat
2025-09-15 16:16:11 +02:00
committed by GitHub
parent 99b9e3e10e
commit 56dbd29c59
286 changed files with 27797 additions and 7270 deletions
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67
poulpy-core/src/automorphism/gglwe_atk.rs
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@@ -1,8 +1,8 @@
use poulpy_hal::{
api::{
DFT, IDFTConsume, ScratchAvailable, TakeVecZnxDft, VecZnxAutomorphism, VecZnxAutomorphismInplace,
VecZnxBigAddSmallInplace, VecZnxBigNormalize, VecZnxBigNormalizeTmpBytes, VecZnxDftAllocBytes, VmpApplyDftToDft,
VmpApplyDftToDftAdd, VmpApplyDftToDftTmpBytes,
ScratchAvailable, TakeVecZnxDft, VecZnxAutomorphism, VecZnxAutomorphismInplace, VecZnxBigAddSmallInplace,
VecZnxBigNormalize, VecZnxBigNormalizeTmpBytes, VecZnxDftAllocBytes, VecZnxDftApply, VecZnxIdftApplyConsume,
VmpApplyDftToDft, VmpApplyDftToDftAdd, VmpApplyDftToDftTmpBytes,
},
layouts::{Backend, DataMut, DataRef, Module, Scratch, ZnxZero},
};
@@ -54,12 +54,12 @@ impl<DataSelf: DataMut> GGLWEAutomorphismKey<DataSelf> {
+ VecZnxBigNormalizeTmpBytes
+ VmpApplyDftToDft<B>
+ VmpApplyDftToDftAdd<B>
+ DFT<B>
+ IDFTConsume<B>
+ VecZnxDftApply<B>
+ VecZnxIdftApplyConsume<B>
+ VecZnxBigAddSmallInplace<B>
+ VecZnxBigNormalize<B>
+ VecZnxAutomorphism
+ VecZnxAutomorphismInplace,
+ VecZnxAutomorphismInplace<B>,
Scratch<B>: ScratchAvailable + TakeVecZnxDft<B>,
{
#[cfg(debug_assertions)]
@@ -72,7 +72,7 @@ impl<DataSelf: DataMut> GGLWEAutomorphismKey<DataSelf> {
lhs.rank_in()
);
assert_eq!(
lhs.rank_out(),
self.rank_out(),
rhs.rank_in(),
"ksk_in output rank: {} != ksk_apply input rank: {}",
self.rank_out(),
@@ -113,7 +113,7 @@ impl<DataSelf: DataMut> GGLWEAutomorphismKey<DataSelf> {
// Applies back the automorphism X^{-k}: (-pi^{-1}_{k'}(s)a + pi_{k}(s), a) to (-pi^{-1}_{k'+k}(s)a + s, a)
(0..cols_out).for_each(|i| {
module.vec_znx_automorphism_inplace(p_inv, &mut res_ct.data, i);
module.vec_znx_automorphism_inplace(p_inv, &mut res_ct.data, i, scratch);
});
});
});
@@ -138,17 +138,56 @@ impl<DataSelf: DataMut> GGLWEAutomorphismKey<DataSelf> {
+ VecZnxBigNormalizeTmpBytes
+ VmpApplyDftToDft<B>
+ VmpApplyDftToDftAdd<B>
+ DFT<B>
+ IDFTConsume<B>
+ VecZnxDftApply<B>
+ VecZnxIdftApplyConsume<B>
+ VecZnxBigAddSmallInplace<B>
+ VecZnxBigNormalize<B>
+ VecZnxAutomorphism
+ VecZnxAutomorphismInplace,
+ VecZnxAutomorphismInplace<B>,
Scratch<B>: ScratchAvailable + TakeVecZnxDft<B>,
{
unsafe {
let self_ptr: *mut GGLWEAutomorphismKey<DataSelf> = self as *mut GGLWEAutomorphismKey<DataSelf>;
self.automorphism(module, &*self_ptr, rhs, scratch);
#[cfg(debug_assertions)]
{
assert_eq!(
self.rank_out(),
rhs.rank_in(),
"ksk_in output rank: {} != ksk_apply input rank: {}",
self.rank_out(),
rhs.rank_in()
);
assert_eq!(
self.rank_out(),
rhs.rank_out(),
"ksk_out output rank: {} != ksk_apply output rank: {}",
self.rank_out(),
rhs.rank_out()
);
}
let cols_out: usize = rhs.rank_out() + 1;
let p: i64 = self.p();
let p_inv = module.galois_element_inv(p);
(0..self.rank_in()).for_each(|col_i| {
(0..self.rows()).for_each(|row_j| {
let mut res_ct: GLWECiphertext<&mut [u8]> = self.at_mut(row_j, col_i);
// Reverts the automorphism X^{-k}: (-pi^{-1}_{k}(s)a + s, a) to (-sa + pi_{k}(s), a)
(0..cols_out).for_each(|i| {
module.vec_znx_automorphism_inplace(p_inv, &mut res_ct.data, i, scratch);
});
// Key-switch (-sa + pi_{k}(s), a) to (-pi^{-1}_{k'}(s)a + pi_{k}(s), a)
res_ct.keyswitch_inplace(module, &rhs.key, scratch);
// Applies back the automorphism X^{-k}: (-pi^{-1}_{k'}(s)a + pi_{k}(s), a) to (-pi^{-1}_{k'+k}(s)a + s, a)
(0..cols_out).for_each(|i| {
module.vec_znx_automorphism_inplace(p_inv, &mut res_ct.data, i, scratch);
});
});
});
self.p = (self.p * rhs.p) % (module.cyclotomic_order() as i64);
}
}