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Add BDD Arithmetic (#98)

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* Added some circuit, evaluation + some layouts

* Refactor + memory reduction

* Rows -> Dnum, Digits -> Dsize

* fix #96 + glwe_packing (indirectly CBT)

* clippy
This commit is contained in:
Jean-Philippe Bossuat
2025-10-08 17:52:03 +02:00
committed by GitHub
parent 37e13b965c
commit 6357a05509
119 changed files with 15996 additions and 1659 deletions
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46
poulpy-core/src/noise/glwe_ct.rs
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@@ -1,16 +1,44 @@
use poulpy_hal::{
api::{
ScratchOwnedAlloc, ScratchOwnedBorrow, SvpApplyDftToDftInplace, VecZnxBigAddInplace, VecZnxBigAddSmallInplace,
VecZnxBigAllocBytes, VecZnxBigNormalize, VecZnxDftAllocBytes, VecZnxDftApply, VecZnxIdftApplyConsume,
VecZnxNormalizeInplace, VecZnxNormalizeTmpBytes, VecZnxSubInplace,
ScratchOwnedAlloc, ScratchOwnedBorrow, SvpApplyDftToDftInplace, TakeVecZnxBig, TakeVecZnxDft, VecZnxBigAddInplace,
VecZnxBigAddSmallInplace, VecZnxBigAllocBytes, VecZnxBigNormalize, VecZnxDftAllocBytes, VecZnxDftApply,
VecZnxIdftApplyConsume, VecZnxNormalizeInplace, VecZnxNormalizeTmpBytes, VecZnxSubInplace,
},
layouts::{Backend, DataRef, Module, ScratchOwned},
layouts::{Backend, DataRef, Module, Scratch, ScratchOwned},
oep::{ScratchOwnedAllocImpl, ScratchOwnedBorrowImpl, TakeVecZnxBigImpl, TakeVecZnxDftImpl},
};
use crate::layouts::{GLWECiphertext, GLWEPlaintext, LWEInfos, prepared::GLWESecretPrepared};
impl<D: DataRef> GLWECiphertext<D> {
pub fn noise<B, DataSk, DataPt>(
&self,
module: &Module<B>,
sk_prepared: &GLWESecretPrepared<DataSk, B>,
pt_want: &GLWEPlaintext<DataPt>,
scratch: &mut Scratch<B>,
) -> f64
where
DataSk: DataRef,
DataPt: DataRef,
B: Backend,
Module<B>: VecZnxDftApply<B>
+ VecZnxSubInplace
+ VecZnxNormalizeInplace<B>
+ SvpApplyDftToDftInplace<B>
+ VecZnxIdftApplyConsume<B>
+ VecZnxBigAddInplace<B>
+ VecZnxBigAddSmallInplace<B>
+ VecZnxBigNormalize<B>,
Scratch<B>: TakeVecZnxDft<B> + TakeVecZnxBig<B>,
{
let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::alloc(self);
self.decrypt(module, &mut pt_have, sk_prepared, scratch);
module.vec_znx_sub_inplace(&mut pt_have.data, 0, &pt_want.data, 0);
module.vec_znx_normalize_inplace(self.base2k().into(), &mut pt_have.data, 0, scratch);
pt_have.data.std(self.base2k().into(), 0).log2()
}
pub fn assert_noise<B, DataSk, DataPt>(
&self,
module: &Module<B>,
@@ -33,16 +61,8 @@ impl<D: DataRef> GLWECiphertext<D> {
+ VecZnxNormalizeInplace<B>,
B: Backend + TakeVecZnxDftImpl<B> + TakeVecZnxBigImpl<B> + ScratchOwnedAllocImpl<B> + ScratchOwnedBorrowImpl<B>,
{
let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::alloc(self);
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(GLWECiphertext::decrypt_scratch_space(module, self));
self.decrypt(module, &mut pt_have, sk_prepared, scratch.borrow());
module.vec_znx_sub_inplace(&mut pt_have.data, 0, &pt_want.data, 0);
module.vec_znx_normalize_inplace(self.base2k().into(), &mut pt_have.data, 0, scratch.borrow());
let noise_have: f64 = pt_have.data.std(self.base2k().into(), 0).log2();
let noise_have: f64 = self.noise(module, sk_prepared, pt_want, scratch.borrow());
assert!(noise_have <= max_noise, "{noise_have} {max_noise}");
}
}