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refactored secret key

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This commit is contained in:
Jean-Philippe Bossuat
2025-05-30 15:50:01 +02:00
parent 82810a87c8
commit de4a5e9bfc
24 changed files with 358 additions and 680 deletions
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75
core/src/test_fft64/glwe_fourier.rs
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@@ -1,12 +1,5 @@
use crate::{
GLWEOps,
elem::Infos,
ggsw_ciphertext::GGSWCiphertext,
glwe_ciphertext::GLWECiphertext,
glwe_ciphertext_fourier::GLWECiphertextFourier,
glwe_plaintext::GLWEPlaintext,
keys::{SecretKey, SecretKeyFourier},
keyswitch_key::GLWESwitchingKey,
GGSWCiphertext, GLWECiphertext, GLWECiphertextFourier, GLWEOps, GLWEPlaintext, GLWESecret, GLWESwitchingKey, Infos,
test_fft64::{gglwe::log2_std_noise_gglwe_product, ggsw::noise_ggsw_product},
};
use backend::{FFT64, FillUniform, Module, ScalarZnx, ScalarZnxAlloc, ScratchOwned, Stats, VecZnxOps, ZnxViewMut};
@@ -94,22 +87,16 @@ fn test_keyswitch(
),
);
let mut sk_in: SecretKey<Vec<u8>> = SecretKey::alloc(&module, rank_in);
sk_in.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_in: GLWESecret<Vec<u8>, FFT64> = GLWESecret::alloc(&module, rank_in);
sk_in.fill_ternary_prob(&module, 0.5, &mut source_xs);
let mut sk_in_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::alloc(&module, rank_in);
sk_in_dft.dft(&module, &sk_in);
let mut sk_out: SecretKey<Vec<u8>> = SecretKey::alloc(&module, rank_out);
sk_out.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_out_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::alloc(&module, rank_out);
sk_out_dft.dft(&module, &sk_out);
let mut sk_out: GLWESecret<Vec<u8>, FFT64> = GLWESecret::alloc(&module, rank_out);
sk_out.fill_ternary_prob(&module, 0.5, &mut source_xs);
ksk.generate_from_sk(
&module,
&sk_in,
&sk_out_dft,
&sk_out,
&mut source_xa,
&mut source_xe,
sigma,
@@ -119,7 +106,7 @@ fn test_keyswitch(
ct_glwe_in.encrypt_sk(
&module,
&pt_want,
&sk_in_dft,
&sk_in,
&mut source_xa,
&mut source_xe,
sigma,
@@ -130,7 +117,7 @@ fn test_keyswitch(
ct_glwe_dft_out.keyswitch(&module, &ct_glwe_dft_in, &ksk, scratch.borrow());
ct_glwe_dft_out.idft(&module, &mut ct_glwe_out, scratch.borrow());
ct_glwe_out.decrypt(&module, &mut pt_have, &sk_out_dft, scratch.borrow());
ct_glwe_out.decrypt(&module, &mut pt_have, &sk_out, scratch.borrow());
module.vec_znx_sub_ab_inplace(&mut pt_have.data, 0, &pt_want.data, 0);
@@ -182,22 +169,16 @@ fn test_keyswitch_inplace(log_n: usize, basek: usize, k_ksk: usize, k_ct: usize,
| GLWECiphertextFourier::keyswitch_inplace_scratch_space(&module, basek, ct_rlwe_dft.k(), ksk.k(), rank),
);
let mut sk_in: SecretKey<Vec<u8>> = SecretKey::alloc(&module, rank);
sk_in.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_in: GLWESecret<Vec<u8>, FFT64> = GLWESecret::alloc(&module, rank);
sk_in.fill_ternary_prob(&module, 0.5, &mut source_xs);
let mut sk_in_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::alloc(&module, rank);
sk_in_dft.dft(&module, &sk_in);
let mut sk_out: SecretKey<Vec<u8>> = SecretKey::alloc(&module, rank);
sk_out.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_out_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::alloc(&module, rank);
sk_out_dft.dft(&module, &sk_out);
let mut sk_out: GLWESecret<Vec<u8>, FFT64> = GLWESecret::alloc(&module, rank);
sk_out.fill_ternary_prob(&module, 0.5, &mut source_xs);
ksk.generate_from_sk(
&module,
&sk_in,
&sk_out_dft,
&sk_out,
&mut source_xa,
&mut source_xe,
sigma,
@@ -207,7 +188,7 @@ fn test_keyswitch_inplace(log_n: usize, basek: usize, k_ksk: usize, k_ct: usize,
ct_glwe.encrypt_sk(
&module,
&pt_want,
&sk_in_dft,
&sk_in,
&mut source_xa,
&mut source_xe,
sigma,
@@ -218,7 +199,7 @@ fn test_keyswitch_inplace(log_n: usize, basek: usize, k_ksk: usize, k_ct: usize,
ct_rlwe_dft.keyswitch_inplace(&module, &ksk, scratch.borrow());
ct_rlwe_dft.idft(&module, &mut ct_glwe, scratch.borrow());
ct_glwe.decrypt(&module, &mut pt_have, &sk_out_dft, scratch.borrow());
ct_glwe.decrypt(&module, &mut pt_have, &sk_out, scratch.borrow());
module.vec_znx_sub_ab_inplace(&mut pt_have.data, 0, &pt_want.data, 0);
@@ -281,16 +262,13 @@ fn test_external_product(log_n: usize, basek: usize, k_ggsw: usize, k_ct_in: usi
| GLWECiphertextFourier::external_product_scratch_space(&module, basek, ct_out.k(), ct_in.k(), ct_ggsw.k(), rank),
);
let mut sk: SecretKey<Vec<u8>> = SecretKey::alloc(&module, rank);
sk.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::alloc(&module, rank);
sk_dft.dft(&module, &sk);
let mut sk: GLWESecret<Vec<u8>, FFT64> = GLWESecret::alloc(&module, rank);
sk.fill_ternary_prob(&module, 0.5, &mut source_xs);
ct_ggsw.encrypt_sk(
&module,
&pt_rgsw,
&sk_dft,
&sk,
&mut source_xa,
&mut source_xe,
sigma,
@@ -300,7 +278,7 @@ fn test_external_product(log_n: usize, basek: usize, k_ggsw: usize, k_ct_in: usi
ct_in.encrypt_sk(
&module,
&pt_want,
&sk_dft,
&sk,
&mut source_xa,
&mut source_xe,
sigma,
@@ -311,7 +289,7 @@ fn test_external_product(log_n: usize, basek: usize, k_ggsw: usize, k_ct_in: usi
ct_out_dft.external_product(&module, &ct_in_dft, &ct_ggsw, scratch.borrow());
ct_out_dft.idft(&module, &mut ct_out, scratch.borrow());
ct_out.decrypt(&module, &mut pt_have, &sk_dft, scratch.borrow());
ct_out.decrypt(&module, &mut pt_have, &sk, scratch.borrow());
pt_want.rotate_inplace(&module, k);
pt_have.sub_inplace_ab(&module, &pt_want);
@@ -381,16 +359,13 @@ fn test_external_product_inplace(log_n: usize, basek: usize, k_ggsw: usize, k_ct
| GLWECiphertextFourier::external_product_inplace_scratch_space(&module, basek, ct.k(), ct_ggsw.k(), rank),
);
let mut sk: SecretKey<Vec<u8>> = SecretKey::alloc(&module, rank);
sk.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::alloc(&module, rank);
sk_dft.dft(&module, &sk);
let mut sk: GLWESecret<Vec<u8>, FFT64> = GLWESecret::alloc(&module, rank);
sk.fill_ternary_prob(&module, 0.5, &mut source_xs);
ct_ggsw.encrypt_sk(
&module,
&pt_rgsw,
&sk_dft,
&sk,
&mut source_xa,
&mut source_xe,
sigma,
@@ -400,7 +375,7 @@ fn test_external_product_inplace(log_n: usize, basek: usize, k_ggsw: usize, k_ct
ct.encrypt_sk(
&module,
&pt_want,
&sk_dft,
&sk,
&mut source_xa,
&mut source_xe,
sigma,
@@ -411,7 +386,7 @@ fn test_external_product_inplace(log_n: usize, basek: usize, k_ggsw: usize, k_ct
ct_rlwe_dft.external_product_inplace(&module, &ct_ggsw, scratch.borrow());
ct_rlwe_dft.idft(&module, &mut ct, scratch.borrow());
ct.decrypt(&module, &mut pt_have, &sk_dft, scratch.borrow());
ct.decrypt(&module, &mut pt_have, &sk, scratch.borrow());
pt_want.rotate_inplace(&module, k);
pt_have.sub_inplace_ab(&module, &pt_want);