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gadget product working

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This commit is contained in:
Jean-Philippe Bossuat
2025-02-12 09:19:22 +01:00
parent 1f52a3d266
commit c5da752536
8 changed files with 56 additions and 33 deletions
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2
rlwe/examples/encryption.rs
View File

@@ -55,7 +55,7 @@ fn main() {
let mut source_xe: Source = Source::new([1; 32]);
let mut source_xa: Source = Source::new([2; 32]);
let mut sk_svp_ppol: base2k::SvpPPol = params.module().svp_new_ppol();
let mut sk_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
params.module().svp_prepare(&mut sk_svp_ppol, &sk.0);
params.encrypt_rlwe_sk_thread_safe(

55
rlwe/examples/gadget_product.rs
View File

@@ -3,7 +3,9 @@ use rlwe::{
ciphertext::Ciphertext,
decryptor::{Decryptor, decrypt_rlwe_thread_safe_tmp_byte},
encryptor::{EncryptorSk, encrypt_rlwe_sk_tmp_bytes},
keys::SecretKey,
evaluator::{gadget_product_inplace, gadget_product_tmp_bytes},
key_generator::{gen_switching_key_thread_safe, gen_switching_key_thread_safe_tmp_bytes},
keys::{SecretKey, SwitchingKey},
parameters::{Parameters, ParametersLiteral},
plaintext::Plaintext,
};
@@ -13,7 +15,7 @@ fn main() {
let params_lit: ParametersLiteral = ParametersLiteral {
log_n: 10,
log_q: 54,
log_p: 0,
log_p: 17,
log_base2k: 17,
log_scale: 20,
xe: 3.2,
@@ -26,6 +28,20 @@ fn main() {
0u8;
params.decrypt_rlwe_thread_safe_tmp_byte(params.log_q())
| params.encrypt_rlwe_sk_tmp_bytes(params.log_q())
| gen_switching_key_thread_safe_tmp_bytes(
params.module(),
params.log_base2k(),
params.limbs_q(),
params.log_q()
)
| gadget_product_tmp_bytes(
params.module(),
params.log_base2k(),
params.log_q(),
params.log_q(),
params.limbs_q(),
params.limbs_qp()
)
];
let mut source: Source = Source::new([0; 32]);
@@ -54,22 +70,45 @@ fn main() {
let mut ct: Ciphertext = params.new_ciphertext(params.log_q());
let mut source_xe: Source = Source::new(new_seed());
let mut source_xa: Source = Source::new(new_seed());
let mut source_xe: Source = Source::new([1; 32]);
let mut source_xa: Source = Source::new([2; 32]);
let mut sk_svp_ppol: base2k::SvpPPol = params.module().svp_new_ppol();
params.module().svp_prepare(&mut sk_svp_ppol, &sk0.0);
let mut sk0_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
params.module().svp_prepare(&mut sk0_svp_ppol, &sk0.0);
let mut sk1_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
params.module().svp_prepare(&mut sk1_svp_ppol, &sk1.0);
params.encrypt_rlwe_sk_thread_safe(
&mut ct,
Some(&pt),
&sk_svp_ppol,
&sk0_svp_ppol,
&mut source_xa,
&mut source_xe,
&mut tmp_bytes,
);
params.decrypt_rlwe_thread_safe(&mut pt, &ct, &sk_svp_ppol, &mut tmp_bytes);
let mut swk: SwitchingKey = SwitchingKey::new(
params.module(),
params.log_base2k(),
params.limbs_q(),
params.log_qp(),
);
gen_switching_key_thread_safe(
params.module(),
&mut swk,
&sk0,
&sk1_svp_ppol,
&mut source_xa,
&mut source_xe,
params.xe(),
&mut tmp_bytes,
);
gadget_product_inplace(params.module(), &mut ct, &swk.0, &mut tmp_bytes);
params.decrypt_rlwe_thread_safe(&mut pt, &ct, &sk1_svp_ppol, &mut tmp_bytes);
pt.0.value[0].print_limbs(pt.limbs(), 16);