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This commit is contained in:
Pro7ech
2025-10-12 21:34:10 +02:00
parent f72363cc4b
commit 662e533eac
32 changed files with 1594 additions and 787 deletions
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101
poulpy-core/src/encryption/compressed/gglwe_ksk.rs
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@@ -1,9 +1,7 @@
use poulpy_hal::{
api::{
ScratchAvailable, SvpApplyDftToDftInplace, SvpPPolAllocBytes, SvpPrepare, TakeScalarZnx, TakeVecZnx, TakeVecZnxDft,
VecZnxAddInplace, VecZnxAddNormal, VecZnxAddScalarInplace, VecZnxBigNormalize, VecZnxDftAllocBytes, VecZnxDftApply,
VecZnxFillUniform, VecZnxIdftApplyConsume, VecZnxNormalize, VecZnxNormalizeInplace, VecZnxNormalizeTmpBytes, VecZnxSub,
VecZnxSubInplace, VecZnxSwitchRing,
ScratchAvailable, SvpPPolAllocBytes, SvpPrepare, TakeScalarZnx, VecZnxDftAllocBytes, VecZnxNormalizeTmpBytes,
VecZnxSwitchRing,
},
layouts::{Backend, DataMut, DataRef, Module, ScalarZnx, Scratch},
source::Source,
@@ -11,13 +9,15 @@ use poulpy_hal::{
use crate::{
TakeGLWESecretPrepared,
encryption::compressed::gglwe_ct::GGLWECompressedEncryptSk,
layouts::{
Degree, GGLWECiphertext, GGLWEInfos, GLWEInfos, GLWESecret, LWEInfos, compressed::GGLWESwitchingKeyCompressed,
Degree, GGLWECiphertext, GGLWEInfos, GLWEInfos, GLWESecret, GLWESecretToRef, LWEInfos,
compressed::{GGLWEKeyCompressed, GGLWEKeyCompressedToMut},
prepared::GLWESecretPrepared,
},
};
impl GGLWESwitchingKeyCompressed<Vec<u8>> {
impl GGLWEKeyCompressed<Vec<u8>> {
pub fn encrypt_sk_scratch_space<B: Backend, A>(module: &Module<B>, infos: &A) -> usize
where
A: GGLWEInfos,
@@ -29,7 +29,7 @@ impl GGLWESwitchingKeyCompressed<Vec<u8>> {
}
}
impl<DataSelf: DataMut> GGLWESwitchingKeyCompressed<DataSelf> {
impl<DataSelf: DataMut> GGLWEKeyCompressed<DataSelf> {
#[allow(clippy::too_many_arguments)]
pub fn encrypt_sk<DataSkIn: DataRef, DataSkOut: DataRef, B: Backend>(
&mut self,
@@ -40,36 +40,65 @@ impl<DataSelf: DataMut> GGLWESwitchingKeyCompressed<DataSelf> {
source_xe: &mut Source,
scratch: &mut Scratch<B>,
) where
Module<B>: SvpPrepare<B>
+ SvpPPolAllocBytes
+ VecZnxSwitchRing
+ VecZnxDftAllocBytes
+ VecZnxBigNormalize<B>
+ VecZnxDftApply<B>
+ SvpApplyDftToDftInplace<B>
+ VecZnxIdftApplyConsume<B>
+ VecZnxNormalizeTmpBytes
+ VecZnxFillUniform
+ VecZnxSubInplace
+ VecZnxAddInplace
+ VecZnxNormalizeInplace<B>
+ VecZnxAddNormal
+ VecZnxNormalize<B>
+ VecZnxSub
+ VecZnxAddScalarInplace,
Scratch<B>: TakeVecZnxDft<B> + ScratchAvailable + TakeVecZnx + TakeScalarZnx + TakeGLWESecretPrepared<B>,
Module<B>: GGLWEKeyCompressedEncryptSk<B>,
{
module.gglwe_key_compressed_encrypt_sk(self, sk_in, sk_out, seed_xa, source_xe, scratch);
}
}
pub trait GGLWEKeyCompressedEncryptSk<B: Backend> {
fn gglwe_key_compressed_encrypt_sk<R, SI, SO>(
&self,
res: &mut R,
sk_in: &SI,
sk_out: &SO,
seed_xa: [u8; 32],
source_xe: &mut Source,
scratch: &mut Scratch<B>,
) where
R: GGLWEKeyCompressedToMut,
SI: GLWESecretToRef,
SO: GLWESecretToRef;
}
impl<B: Backend> GGLWEKeyCompressedEncryptSk<B> for Module<B>
where
Module<B>: GGLWECompressedEncryptSk<B>
+ SvpPPolAllocBytes
+ VecZnxNormalizeTmpBytes
+ VecZnxDftAllocBytes
+ VecZnxSwitchRing
+ SvpPrepare<B>,
Scratch<B>: ScratchAvailable + TakeScalarZnx + TakeGLWESecretPrepared<B>,
{
fn gglwe_key_compressed_encrypt_sk<R, SI, SO>(
&self,
res: &mut R,
sk_in: &SI,
sk_out: &SO,
seed_xa: [u8; 32],
source_xe: &mut Source,
scratch: &mut Scratch<B>,
) where
R: GGLWEKeyCompressedToMut,
SI: GLWESecretToRef,
SO: GLWESecretToRef,
{
let res: &mut GGLWEKeyCompressed<&mut [u8]> = &mut res.to_mut();
let sk_in: &GLWESecret<&[u8]> = &sk_in.to_ref();
let sk_out: &GLWESecret<&[u8]> = &sk_out.to_ref();
#[cfg(debug_assertions)]
{
use crate::layouts::GGLWESwitchingKey;
assert!(sk_in.n().0 <= module.n() as u32);
assert!(sk_out.n().0 <= module.n() as u32);
assert!(sk_in.n().0 <= self.n() as u32);
assert!(sk_out.n().0 <= self.n() as u32);
assert!(
scratch.available() >= GGLWESwitchingKey::encrypt_sk_scratch_space(module, self),
scratch.available() >= GGLWESwitchingKey::encrypt_sk_scratch_space(self, res),
"scratch.available()={} < GLWESwitchingKey::encrypt_sk_scratch_space={}",
scratch.available(),
GGLWESwitchingKey::encrypt_sk_scratch_space(module, self)
GGLWESwitchingKey::encrypt_sk_scratch_space(self, res)
)
}
@@ -77,7 +106,7 @@ impl<DataSelf: DataMut> GGLWESwitchingKeyCompressed<DataSelf> {
let (mut sk_in_tmp, scratch_1) = scratch.take_scalar_znx(n, sk_in.rank().into());
(0..sk_in.rank().into()).for_each(|i| {
module.vec_znx_switch_ring(
self.vec_znx_switch_ring(
&mut sk_in_tmp.as_vec_znx_mut(),
i,
&sk_in.data.as_vec_znx(),
@@ -89,20 +118,20 @@ impl<DataSelf: DataMut> GGLWESwitchingKeyCompressed<DataSelf> {
{
let (mut tmp, _) = scratch_2.take_scalar_znx(n, 1);
(0..sk_out.rank().into()).for_each(|i| {
module.vec_znx_switch_ring(&mut tmp.as_vec_znx_mut(), 0, &sk_out.data.as_vec_znx(), i);
module.svp_prepare(&mut sk_out_tmp.data, i, &tmp, 0);
self.vec_znx_switch_ring(&mut tmp.as_vec_znx_mut(), 0, &sk_out.data.as_vec_znx(), i);
self.svp_prepare(&mut sk_out_tmp.data, i, &tmp, 0);
});
}
self.key.encrypt_sk(
module,
self.gglwe_compressed_encrypt_sk(
&mut res.key,
&sk_in_tmp,
&sk_out_tmp,
seed_xa,
source_xe,
scratch_2,
);
self.sk_in_n = sk_in.n().into();
self.sk_out_n = sk_out.n().into();
res.sk_in_n = sk_in.n().into();
res.sk_out_n = sk_out.n().into();
}
}