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Add decrypt on fhe_uint_prepared

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Pro7ech
2025-11-08 12:07:00 +01:00
parent 75842cd80a
commit 8f7cb9fbc5
1 changed files with 21 additions and 3 deletions
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24
poulpy-schemes/src/tfhe/bdd_arithmetic/ciphertexts/fhe_uint_prepared.rs
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@@ -1,12 +1,15 @@
use std::marker::PhantomData; use std::marker::PhantomData;
use poulpy_core::LWEFromGLWE;
use poulpy_core::layouts::{ use poulpy_core::layouts::{
Base2K, Dnum, Dsize, GGSWInfos, GGSWPreparedFactory, GLWEInfos, LWEInfos, Rank, TorusPrecision, prepared::GGSWPrepared, Base2K, Dnum, Dsize, GGSWInfos, GGSWPreparedFactory, GLWEInfos, LWEInfos, Rank, TorusPrecision, prepared::GGSWPrepared,
}; };
use poulpy_core::layouts::{GGSWPreparedToMut, GGSWPreparedToRef, LWE}; use poulpy_core::layouts::{
GGLWEInfos, GGLWEPreparedToRef, GGSWPreparedToMut, GGSWPreparedToRef, GLWEAutomorphismKeyHelper, GetGaloisElement, LWE,
};
use poulpy_core::{GLWECopy, GLWEDecrypt, GLWEPacking, LWEFromGLWE};
use poulpy_core::{GGSWEncryptSk, ScratchTakeCore, layouts::GLWESecretPreparedToRef}; use poulpy_core::{GGSWEncryptSk, ScratchTakeCore, layouts::GLWESecretPreparedToRef};
use poulpy_hal::api::ModuleLogN;
use poulpy_hal::layouts::{Backend, Data, DataRef, Module}; use poulpy_hal::layouts::{Backend, Data, DataRef, Module};
use poulpy_hal::{ use poulpy_hal::{
@@ -15,8 +18,8 @@ use poulpy_hal::{
source::Source, source::Source,
}; };
use crate::tfhe::bdd_arithmetic::UnsignedInteger;
use crate::tfhe::bdd_arithmetic::{BDDKey, BDDKeyHelper, BDDKeyInfos, BDDKeyPrepared, BDDKeyPreparedFactory, FheUint, ToBits}; use crate::tfhe::bdd_arithmetic::{BDDKey, BDDKeyHelper, BDDKeyInfos, BDDKeyPrepared, BDDKeyPreparedFactory, FheUint, ToBits};
use crate::tfhe::bdd_arithmetic::{Cmux, FromBits, ScratchTakeBDD, UnsignedInteger};
use crate::tfhe::blind_rotation::BlindRotationAlgo; use crate::tfhe::blind_rotation::BlindRotationAlgo;
use crate::tfhe::circuit_bootstrapping::CirtuitBootstrappingExecute; use crate::tfhe::circuit_bootstrapping::CirtuitBootstrappingExecute;
@@ -160,6 +163,21 @@ impl<D: DataMut, T: UnsignedInteger + ToBits, BE: Backend> FheUintPrepared<D, T,
} }
} }
impl<D: DataRef, T: UnsignedInteger + FromBits, BE: Backend> FheUintPrepared<D, T, BE> {
pub fn decrypt<M, S, H, K>(&self, module: &M, sk: &S, keys: &H, scratch: &mut Scratch<BE>) -> T
where
M: ModuleLogN + GLWEDecrypt<BE> + Cmux<BE> + GLWEPacking<BE> + GLWECopy,
S: GLWESecretPreparedToRef<BE> + GLWEInfos,
Scratch<BE>: ScratchTakeCore<BE>,
K: GGLWEPreparedToRef<BE> + GetGaloisElement + GGLWEInfos,
H: GLWEAutomorphismKeyHelper<K, BE>,
{
let (mut tmp, scratch_1) = scratch.take_fhe_uint(self);
tmp.from_fhe_uint_prepared(module, self, keys, scratch_1);
tmp.decrypt(module, sk, scratch_1)
}
}
impl<D: DataRef, T: UnsignedInteger, B: Backend> LWEInfos for FheUintPrepared<D, T, B> { impl<D: DataRef, T: UnsignedInteger, B: Backend> LWEInfos for FheUintPrepared<D, T, B> {
fn base2k(&self) -> poulpy_core::layouts::Base2K { fn base2k(&self) -> poulpy_core::layouts::Base2K {
self.bits[0].base2k() self.bits[0].base2k()