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Rasoul Akhavan Mahdavi
2025-10-16 23:49:33 -04:00
parent a5600593ca
commit 1247d3e4b7
8 changed files with 917 additions and 317 deletions
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294
poulpy-core/src/encryption/gglwe_ksk.rs
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@@ -12,7 +12,7 @@ use poulpy_hal::{
use crate::{
ScratchTakeCore,
layouts::{
GGLWE, GGLWEInfos, GLWEInfos, GLWESecret, GLWESwitchingKey, LWEInfos, RingDegree, prepared::GLWESecretPrepared,
GGLWE, GGLWEInfos, GLWEInfos, GLWESecret, GLWESecretToRef, GLWESwitchingKey, GLWESwitchingKeyToMut, LWEInfos, prepared::GLWESecretPrepared,
},
encryption::gglwe_ct::GGLWEEncryptSk,
};
@@ -26,109 +26,108 @@ impl GLWESwitchingKey<Vec<u8>> {
module.glwe_switching_key_encrypt_sk_tmp_bytes(infos)
}
pub fn encrypt_pk_tmp_bytes<M, A, BE: Backend>(module: &M, infos: &A) -> usize
where
A: GGLWEInfos,
M: GLWESwitchingKeyEncryptSk<BE>,
M: GLWESwitchingKeyEncryptPk<BE>,
{
module.glwe_switching_key_encrypt_pk_tmp_bytes(infos)
}
// pub fn encrypt_sk_tmp_bytes<B: Backend, A>(module: &Module<B>, infos: &A) -> usize
// where
// A: GGLWEInfos,
// Module<B>: ModuleN + SvpPPolBytesOf + VecZnxNormalizeTmpBytes + VecZnxDftBytesOf + VecZnxNormalizeTmpBytes + SvpPPolAlloc<B>,
// {
// (GGLWE::encrypt_sk_tmp_bytes(module, infos) | ScalarZnx::bytes_of(module.n(), 1))
// + ScalarZnx::bytes_of(module.n(), infos.rank_in().into())
// + GLWESecretPrepared::bytes_of_from_infos(module, &infos.glwe_layout())
// }
// pub fn encrypt_pk_tmp_bytes<B: Backend, A>(module: &Module<B>, _infos: &A) -> usize
// where
// A: GGLWEInfos,
// {
// GGLWE::encrypt_pk_tmp_bytes(module, _infos)
// }
}
impl<DataSelf: DataMut> GLWESwitchingKey<DataSelf> {
#[allow(clippy::too_many_arguments)]
pub fn encrypt_sk<DataSkIn: DataRef, DataSkOut: DataRef, B: Backend>(
pub fn encrypt_sk<M, DataSkIn: DataRef, DataSkOut: DataRef, BE: Backend>(
&mut self,
module: &Module<B>,
module: &M,
sk_in: &GLWESecret<DataSkIn>,
sk_out: &GLWESecret<DataSkOut>,
source_xa: &mut Source,
source_xe: &mut Source,
scratch: &mut Scratch<B>,
scratch: &mut Scratch<BE>,
) where
Module<B>: ModuleN
+ VecZnxAddScalarInplace
+ VecZnxDftBytesOf
+ VecZnxBigNormalize<B>
+ VecZnxDftApply<B>
+ SvpApplyDftToDftInplace<B>
+ VecZnxIdftApplyConsume<B>
+ VecZnxNormalizeTmpBytes
+ VecZnxFillUniform
+ VecZnxSubInplace
+ VecZnxAddInplace
+ VecZnxNormalizeInplace<B>
+ VecZnxAddNormal
+ VecZnxNormalize<B>
+ VecZnxSub
+ SvpPrepare<B>
+ VecZnxSwitchRing
+ SvpPPolBytesOf
+ SvpPPolAlloc<B>,
Scratch<B>: ScratchAvailable + ScratchTakeBasic + ScratchTakeCore<B>,
M: GLWESwitchingKeyEncryptSk<BE>,
Scratch<BE>: ScratchAvailable + ScratchTakeCore<BE>,
{
#[cfg(debug_assertions)]
{
assert!(sk_in.n().0 <= module.n() as u32);
assert!(sk_out.n().0 <= module.n() as u32);
assert!(
scratch.available() >= GLWESwitchingKey::encrypt_sk_tmp_bytes(module, self),
"scratch.available()={} < GLWESwitchingKey::encrypt_sk_tmp_bytes={}",
scratch.available(),
GLWESwitchingKey::encrypt_sk_tmp_bytes(module, self)
)
}
let n: usize = sk_in.n().max(sk_out.n()).into();
let (mut sk_in_tmp, scratch_1) = scratch.take_scalar_znx(module, sk_in.rank().into());
(0..sk_in.rank().into()).for_each(|i| {
module.vec_znx_switch_ring(
&mut sk_in_tmp.as_vec_znx_mut(),
i,
&sk_in.data.as_vec_znx(),
i,
);
});
let (mut sk_out_tmp, scratch_2) = scratch_1.take_glwe_secret_prepared(module, sk_out.rank());
{
let (mut tmp, _) = scratch_2.take_scalar_znx(module, 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.key.encrypt_sk(
module,
&sk_in_tmp,
&sk_out_tmp,
source_xa,
source_xe,
scratch_2,
);
self.sk_in_n = sk_in.n().into();
self.sk_out_n = sk_out.n().into();
module.glwe_switching_key_encrypt_sk(self, sk_in, sk_out, source_xa, source_xe, scratch);
}
// #[allow(clippy::too_many_arguments)]
// pub fn encrypt_sk<DataSkIn: DataRef, DataSkOut: DataRef, B: Backend>(
// &mut self,
// module: &Module<B>,
// sk_in: &GLWESecret<DataSkIn>,
// sk_out: &GLWESecret<DataSkOut>,
// source_xa: &mut Source,
// source_xe: &mut Source,
// scratch: &mut Scratch<B>,
// ) where
// Module<B>: ModuleN
// + VecZnxAddScalarInplace
// + VecZnxDftBytesOf
// + VecZnxBigNormalize<B>
// + VecZnxDftApply<B>
// + SvpApplyDftToDftInplace<B>
// + VecZnxIdftApplyConsume<B>
// + VecZnxNormalizeTmpBytes
// + VecZnxFillUniform
// + VecZnxSubInplace
// + VecZnxAddInplace
// + VecZnxNormalizeInplace<B>
// + VecZnxAddNormal
// + VecZnxNormalize<B>
// + VecZnxSub
// + SvpPrepare<B>
// + VecZnxSwitchRing
// + SvpPPolBytesOf
// + SvpPPolAlloc<B>,
// Scratch<B>: ScratchAvailable + ScratchTakeBasic + ScratchTakeCore<B>,
// {
// #[cfg(debug_assertions)]
// {
// assert!(sk_in.n().0 <= module.n() as u32);
// assert!(sk_out.n().0 <= module.n() as u32);
// assert!(
// scratch.available() >= GLWESwitchingKey::encrypt_sk_tmp_bytes(module, self),
// "scratch.available()={} < GLWESwitchingKey::encrypt_sk_tmp_bytes={}",
// scratch.available(),
// GLWESwitchingKey::encrypt_sk_tmp_bytes(module, self)
// )
// }
// // let n: usize = sk_in.n().max(sk_out.n()).into();
// let (mut sk_in_tmp, scratch_1) = scratch.take_scalar_znx(module, sk_in.rank().into());
// (0..sk_in.rank().into()).for_each(|i| {
// module.vec_znx_switch_ring(
// &mut sk_in_tmp.as_vec_znx_mut(),
// i,
// &sk_in.data.as_vec_znx(),
// i,
// );
// });
// let (mut sk_out_tmp, scratch_2) = scratch_1.take_glwe_secret_prepared(module, sk_out.rank());
// {
// let (mut tmp, _) = scratch_2.take_scalar_znx(module, 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.key.encrypt_sk(
// module,
// &sk_in_tmp,
// &sk_out_tmp,
// source_xa,
// source_xe,
// scratch_2,
// );
// self.sk_in_n = sk_in.n().into();
// self.sk_out_n = sk_out.n().into();
// }
}
@@ -146,9 +145,21 @@ where
where
A: GGLWEInfos;
fn glwe_switching_key_encrypt_pk_tmp_bytes<A>(&self, infos: &A) -> usize
where
A: GGLWEInfos;
fn glwe_switching_key_encrypt_sk<R, DataSkIn, DataSkOut>(
&self,
res: &mut R,
sk_in: &GLWESecret<DataSkIn>,
sk_out: &GLWESecret<DataSkOut>,
source_xa: &mut Source,
source_xe: &mut Source,
scratch: &mut Scratch<BE>,
)
where
R: GLWESwitchingKeyToMut,
DataSkIn: DataRef,
DataSkOut: DataRef,
Scratch<BE>: ScratchAvailable + ScratchTakeCore<BE>;
}
impl<BE: Backend> GLWESwitchingKeyEncryptSk<BE> for Module<BE> where
@@ -157,7 +168,15 @@ impl<BE: Backend> GLWESwitchingKeyEncryptSk<BE> for Module<BE> where
+ VecZnxDftBytesOf
+ VecZnxNormalizeTmpBytes
+ SvpPPolAlloc<BE>
+ GGLWEEncryptSk<BE>,
+ GGLWEEncryptSk<BE>
+ VecZnxSwitchRing
+ SvpPrepare<BE>
+ VecZnxIdftApplyConsume<BE>
+ VecZnxNormalize<BE>
+ VecZnxNormalizeInplace<BE>
+ VecZnxAddInplace
+ VecZnxAddNormal
+ VecZnxSub
{
fn glwe_switching_key_encrypt_sk_tmp_bytes<A>(&self, infos: &A) -> usize
@@ -169,11 +188,102 @@ impl<BE: Backend> GLWESwitchingKeyEncryptSk<BE> for Module<BE> where
+ GLWESecretPrepared::bytes_of_from_infos(self, &infos.glwe_layout())
}
fn glwe_switching_key_encrypt_sk<R, DataSkIn, DataSkOut>(
&self,
res: &mut R,
sk_in: &GLWESecret<DataSkIn>,
sk_out: &GLWESecret<DataSkOut>,
source_xa: &mut Source,
source_xe: &mut Source,
scratch: &mut Scratch<BE>,
)
where
R: GLWESwitchingKeyToMut,
DataSkIn: DataRef,
DataSkOut: DataRef,
Scratch<BE>: ScratchAvailable + ScratchTakeCore<BE>,
{
let res: &mut GLWESwitchingKey<&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)]
{
assert!(sk_in.n().0 <= self.n() as u32);
assert!(sk_out.n().0 <= self.n() as u32);
assert!(
scratch.available() >= GLWESwitchingKey::encrypt_sk_tmp_bytes(self, res),
"scratch.available()={} < GLWESwitchingKey::encrypt_sk_tmp_bytes={}",
scratch.available(),
GLWESwitchingKey::encrypt_sk_tmp_bytes(self, res)
)
}
// let n: usize = sk_in.n().max(sk_out.n()).into();
let (mut sk_in_tmp, scratch_1) = scratch.take_scalar_znx(self, sk_in.rank().into());
(0..sk_in.rank().into()).for_each(|i| {
self.vec_znx_switch_ring(
&mut sk_in_tmp.as_vec_znx_mut(),
i,
&sk_in.data.as_vec_znx(),
i,
);
});
let (mut sk_out_tmp, scratch_2) = scratch_1.take_glwe_secret_prepared(self, sk_out.rank());
{
let (mut tmp, _) = scratch_2.take_scalar_znx(self, 1);
(0..sk_out.rank().into()).for_each(|i| {
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);
});
}
res.key.encrypt_sk(
self,
&sk_in_tmp,
&sk_out_tmp,
source_xa,
source_xe,
scratch_2,
);
res.sk_in_n = sk_in.n().into();
res.sk_out_n = sk_out.n().into();
}
}
pub trait GLWESwitchingKeyEncryptPk<BE: Backend>
where
Self: Sized
+ ModuleN
+ SvpPPolBytesOf
+ VecZnxDftBytesOf
+ VecZnxNormalizeTmpBytes
+ SvpPPolAlloc<BE>
+ GGLWEEncryptSk<BE>,
{
fn glwe_switching_key_encrypt_pk_tmp_bytes<A>(&self, infos: &A) -> usize
where
A: GGLWEInfos;
}
impl<BE: Backend> GLWESwitchingKeyEncryptPk<BE> for Module<BE> where
Self: ModuleN
+ SvpPPolBytesOf
+ VecZnxDftBytesOf
+ VecZnxNormalizeTmpBytes
+ SvpPPolAlloc<BE>
+ GGLWEEncryptSk<BE>,
{
fn glwe_switching_key_encrypt_pk_tmp_bytes<A>(&self, infos: &A) -> usize
where
A: GGLWEInfos,
{
GGLWE::encrypt_pk_tmp_bytes(self, infos)
}
}