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This commit is contained in:
Jean-Philippe Bossuat
2025-04-22 18:50:51 +02:00
parent d3e3594ae8
commit fbdb4436b2
18 changed files with 908 additions and 403 deletions
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7
rlwe/src/decryptor.rs
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@@ -62,14 +62,13 @@ pub fn decrypt_rlwe(
let (tmp_bytes_vec_znx_dft, tmp_bytes_normalize) =
tmp_bytes.split_at_mut(module.bytes_of_vec_znx_dft(cols));
let mut res_dft: VecZnxDft =
VecZnxDft::from_bytes_borrow(module, a.cols(), tmp_bytes_vec_znx_dft);
let mut res_dft: VecZnxDft = VecZnxDft::from_bytes_borrow(module, cols, tmp_bytes_vec_znx_dft);
let mut res_big: base2k::VecZnxBig = res_dft.as_vec_znx_big();
// res_dft <- DFT(ct[1]) * DFT(sk)
module.svp_apply_dft(&mut res_dft, sk, a.at(1), cols);
module.svp_apply_dft(&mut res_dft, sk, a.at(1));
// res_big <- ct[1] x sk
module.vec_znx_idft_tmp_a(&mut res_big, &mut res_dft, cols);
module.vec_znx_idft_tmp_a(&mut res_big, &mut res_dft);
// res_big <- ct[1] x sk + ct[0]
module.vec_znx_big_add_small_inplace(&mut res_big, a.at(0));
// res <- normalize(ct[1] x sk + ct[0])