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Fixed gadget product & added noise estimations

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This commit is contained in:
Jean-Philippe Bossuat
2025-02-24 08:31:02 +01:00
parent 014bf0c2d1
commit 26c2bcbc05
24 changed files with 762 additions and 473 deletions
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24
rlwe/src/decryptor.rs
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@@ -1,6 +1,6 @@
use crate::{
ciphertext::Ciphertext,
elem::{Elem, ElemVecZnx, VecZnxCommon},
elem::{Elem, ElemCommon, VecZnxCommon},
keys::SecretKey,
parameters::Parameters,
plaintext::Plaintext,
@@ -20,19 +20,19 @@ impl Decryptor {
}
}
pub fn decrypt_rlwe_thread_safe_tmp_byte(module: &Module, limbs: usize) -> usize {
pub fn decrypt_rlwe_tmp_byte(module: &Module, limbs: usize) -> usize {
module.bytes_of_vec_znx_dft(limbs) + module.vec_znx_big_normalize_tmp_bytes()
}
impl Parameters {
pub fn decrypt_rlwe_thread_safe_tmp_byte(&self, log_q: usize) -> usize {
decrypt_rlwe_thread_safe_tmp_byte(
pub fn decrypt_rlwe_tmp_byte(&self, log_q: usize) -> usize {
decrypt_rlwe_tmp_byte(
self.module(),
(log_q + self.log_base2k() - 1) / self.log_base2k(),
)
}
pub fn decrypt_rlwe_thread_safe<T>(
pub fn decrypt_rlwe<T>(
&self,
res: &mut Plaintext<T>,
ct: &Ciphertext<T>,
@@ -40,13 +40,13 @@ impl Parameters {
tmp_bytes: &mut [u8],
) where
T: VecZnxCommon<Owned = T>,
Elem<T>: ElemVecZnx<T>,
Elem<T>: ElemCommon<T>,
{
decrypt_rlwe_thread_safe(self.module(), &mut res.0, &ct.0, sk, tmp_bytes)
decrypt_rlwe(self.module(), &mut res.0, &ct.0, sk, tmp_bytes)
}
}
pub fn decrypt_rlwe_thread_safe<T>(
pub fn decrypt_rlwe<T>(
module: &Module,
res: &mut Elem<T>,
a: &Elem<T>,
@@ -54,15 +54,15 @@ pub fn decrypt_rlwe_thread_safe<T>(
tmp_bytes: &mut [u8],
) where
T: VecZnxCommon<Owned = T>,
Elem<T>: ElemVecZnx<T>,
Elem<T>: ElemCommon<T>,
{
let cols: usize = a.cols();
assert!(
tmp_bytes.len() >= decrypt_rlwe_thread_safe_tmp_byte(module, cols),
"invalid tmp_bytes: tmp_bytes.len()={} < decrypt_rlwe_thread_safe_tmp_byte={}",
tmp_bytes.len() >= decrypt_rlwe_tmp_byte(module, cols),
"invalid tmp_bytes: tmp_bytes.len()={} < decrypt_rlwe_tmp_byte={}",
tmp_bytes.len(),
decrypt_rlwe_thread_safe_tmp_byte(module, cols)
decrypt_rlwe_tmp_byte(module, cols)
);
let res_dft_bytes: usize = module.bytes_of_vec_znx_dft(cols);