mirror of
https://github.com/arnaucube/poulpy.git
synced 2026-02-10 13:16:44 +01:00
All test passing
This commit is contained in:
Jean-Philippe Bossuat
@@ -1,4 +1,4 @@
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use base2k::{FFT64, Module, ScalarZnx, ScalarZnxAlloc, ScratchOwned, Stats, VecZnxOps, ZnxViewMut};
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use base2k::{FFT64, Module, ScalarZnx, ScalarZnxAlloc, ScalarZnxToMut, ScratchOwned, Stats, VecZnxOps, ZnxViewMut};
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use sampling::source::Source;
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use crate::{
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@@ -8,6 +8,7 @@ use crate::{
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glwe_plaintext::GLWEPlaintext,
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keys::{SecretKey, SecretKeyFourier},
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keyswitch_key::GLWESwitchingKey,
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test_fft64::ggsw::noise_ggsw_product,
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};
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#[test]
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@@ -15,7 +16,58 @@ fn encrypt_sk() {
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(1..4).for_each(|rank_in| {
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(1..4).for_each(|rank_out| {
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println!("test encrypt_sk rank_in rank_out: {} {}", rank_in, rank_out);
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test_encrypt_sk(11, 8, 54, 3.2, rank_in, rank_out);
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test_encrypt_sk(12, 8, 54, 3.2, rank_in, rank_out);
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});
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});
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}
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#[test]
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fn key_switch() {
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(1..4).for_each(|rank_in_s0s1| {
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(1..4).for_each(|rank_out_s0s1| {
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(1..4).for_each(|rank_out_s1s2| {
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println!(
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"test key_switch : ({},{},{})",
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rank_in_s0s1, rank_out_s0s1, rank_out_s1s2
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);
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test_key_switch(12, 15, 60, 3.2, rank_in_s0s1, rank_out_s0s1, rank_out_s1s2);
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})
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});
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});
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}
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#[test]
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fn key_switch_inplace() {
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(1..4).for_each(|rank_in_s0s1| {
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(1..4).for_each(|rank_out_s0s1| {
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println!(
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"test key_switch_inplace : ({},{})",
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rank_in_s0s1, rank_out_s0s1
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);
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test_key_switch_inplace(12, 15, 60, 3.2, rank_in_s0s1, rank_out_s0s1);
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});
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});
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}
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#[test]
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fn external_product() {
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(1..4).for_each(|rank_in| {
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(1..4).for_each(|rank_out| {
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println!("test external_product rank: {} {}", rank_in, rank_out);
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test_external_product(12, 12, 60, 3.2, rank_in, rank_out);
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});
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});
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}
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#[test]
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fn external_product_inplace() {
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(1..4).for_each(|rank_in| {
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(1..4).for_each(|rank_out| {
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println!(
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"test external_product_inplace rank: {} {}",
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rank_in, rank_out
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);
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test_external_product_inplace(12, 12, 60, 3.2, rank_in, rank_out);
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});
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});
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}
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@@ -58,12 +110,12 @@ fn test_encrypt_sk(log_n: usize, basek: usize, k_ksk: usize, sigma: f64, rank_in
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scratch.borrow(),
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);
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let mut ct_gglwe_fourier: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ksk, rank_out);
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let mut ct_glwe_fourier: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ksk, rank_out);
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(0..ksk.rank_in()).for_each(|col_i| {
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(0..ksk.rows()).for_each(|row_i| {
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ksk.get_row(&module, row_i, 0, &mut ct_gglwe_fourier);
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ct_gglwe_fourier.decrypt(&module, &mut pt, &sk_out_dft, scratch.borrow());
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ksk.get_row(&module, row_i, col_i, &mut ct_glwe_fourier);
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ct_glwe_fourier.decrypt(&module, &mut pt, &sk_out_dft, scratch.borrow());
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module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk_in, col_i);
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let std_pt: f64 = pt.data.std(0, basek) * (k_ksk as f64).exp2();
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assert!((sigma - std_pt).abs() <= 0.2, "{} {}", sigma, std_pt);
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@@ -71,61 +123,64 @@ fn test_encrypt_sk(log_n: usize, basek: usize, k_ksk: usize, sigma: f64, rank_in
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});
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}
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#[test]
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fn keyswitch() {
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let module: Module<FFT64> = Module::<FFT64>::new(2048);
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let basek: usize = 12;
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let log_k_grlwe: usize = 60;
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let rows: usize = (log_k_grlwe + basek - 1) / basek;
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fn test_key_switch(
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log_n: usize,
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basek: usize,
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k_ksk: usize,
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sigma: f64,
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rank_in_s0s1: usize,
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rank_out_s0s1: usize,
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rank_out_s1s2: usize,
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) {
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let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
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let rows = (k_ksk + basek - 1) / basek;
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let rank: usize = 1;
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let sigma: f64 = 3.2;
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let mut ct_grlwe_s0s1: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank);
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let mut ct_grlwe_s1s2: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank);
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let mut ct_grlwe_s0s2: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank);
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let mut ct_gglwe_s0s1: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank_in_s0s1, rank_out_s0s1);
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let mut ct_gglwe_s1s2: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank_out_s0s1, rank_out_s1s2);
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let mut ct_gglwe_s0s2: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank_in_s0s1, rank_out_s1s2);
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let mut source_xs: Source = Source::new([0u8; 32]);
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let mut source_xe: Source = Source::new([0u8; 32]);
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let mut source_xa: Source = Source::new([0u8; 32]);
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let mut scratch: ScratchOwned = ScratchOwned::new(
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GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ct_grlwe_s0s1.size())
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| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_grlwe_s0s2.size())
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GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank_in_s0s1 | rank_out_s0s1, ct_gglwe_s0s1.size())
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| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_gglwe_s0s2.size())
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| GLWESwitchingKey::keyswitch_scratch_space(
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&module,
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ct_grlwe_s0s2.size(),
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ct_grlwe_s0s1.size(),
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ct_grlwe_s1s2.size(),
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ct_gglwe_s0s2.size(),
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ct_gglwe_s0s2.rank(),
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ct_gglwe_s0s1.size(),
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ct_gglwe_s0s1.rank(),
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ct_gglwe_s1s2.size(),
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),
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);
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let mut sk0: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
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let mut sk0: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_in_s0s1);
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sk0.fill_ternary_prob(0.5, &mut source_xs);
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let mut sk0_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
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let mut sk0_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_in_s0s1);
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sk0_dft.dft(&module, &sk0);
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let mut sk1: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
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let mut sk1: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out_s0s1);
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sk1.fill_ternary_prob(0.5, &mut source_xs);
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let mut sk1_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
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let mut sk1_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out_s0s1);
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sk1_dft.dft(&module, &sk1);
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let mut sk2: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
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let mut sk2: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out_s1s2);
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sk2.fill_ternary_prob(0.5, &mut source_xs);
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let mut sk2_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
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let mut sk2_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out_s1s2);
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sk2_dft.dft(&module, &sk2);
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// GRLWE_{s1}(s0) = s0 -> s1
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ct_grlwe_s0s1.encrypt_sk(
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// gglwe_{s1}(s0) = s0 -> s1
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ct_gglwe_s0s1.encrypt_sk(
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&module,
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&sk0.data,
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&sk0,
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&sk1_dft,
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&mut source_xa,
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&mut source_xe,
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@@ -133,10 +188,10 @@ fn keyswitch() {
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scratch.borrow(),
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);
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// GRLWE_{s2}(s1) -> s1 -> s2
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ct_grlwe_s1s2.encrypt_sk(
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// gglwe_{s2}(s1) -> s1 -> s2
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ct_gglwe_s1s2.encrypt_sk(
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&module,
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&sk1.data,
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&sk1,
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&sk2_dft,
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&mut source_xa,
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&mut source_xe,
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@@ -144,89 +199,88 @@ fn keyswitch() {
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scratch.borrow(),
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);
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// GRLWE_{s1}(s0) (x) GRLWE_{s2}(s1) = GRLWE_{s2}(s0)
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ct_grlwe_s0s2.keyswitch(&module, &ct_grlwe_s0s1, &ct_grlwe_s1s2, scratch.borrow());
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// gglwe_{s1}(s0) (x) gglwe_{s2}(s1) = gglwe_{s2}(s0)
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ct_gglwe_s0s2.keyswitch(&module, &ct_gglwe_s0s1, &ct_gglwe_s1s2, scratch.borrow());
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let mut ct_rlwe_dft_s0s2: GLWECiphertextFourier<Vec<u8>, FFT64> =
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GLWECiphertextFourier::new(&module, basek, log_k_grlwe, rank);
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let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, log_k_grlwe);
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let mut ct_glwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ksk, rank_out_s1s2);
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let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ksk);
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(0..ct_grlwe_s0s2.rows()).for_each(|row_i| {
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ct_grlwe_s0s2.get_row(&module, row_i, 0, &mut ct_rlwe_dft_s0s2);
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ct_rlwe_dft_s0s2.decrypt(&module, &mut pt, &sk2_dft, scratch.borrow());
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module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk0, 0);
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(0..ct_gglwe_s0s2.rank_in()).for_each(|col_i| {
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(0..ct_gglwe_s0s2.rows()).for_each(|row_i| {
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ct_gglwe_s0s2.get_row(&module, row_i, col_i, &mut ct_glwe_dft);
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ct_glwe_dft.decrypt(&module, &mut pt, &sk2_dft, scratch.borrow());
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module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk0, col_i);
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let noise_have: f64 = pt.data.std(0, basek).log2();
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let noise_want: f64 = noise_grlwe_rlwe_product(
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module.n() as f64,
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basek,
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0.5,
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0.5,
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0f64,
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sigma * sigma,
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0f64,
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log_k_grlwe,
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log_k_grlwe,
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);
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let noise_have: f64 = pt.data.std(0, basek).log2();
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let noise_want: f64 = noise_gglwe_product(
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module.n() as f64,
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basek,
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0.5,
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0.5,
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0f64,
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sigma * sigma,
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0f64,
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rank_out_s0s1 as f64,
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k_ksk,
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k_ksk,
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);
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assert!(
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(noise_have - noise_want).abs() <= 0.1,
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"{} {}",
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noise_have,
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noise_want
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);
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assert!(
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(noise_have - noise_want).abs() <= 0.1,
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"{} {}",
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noise_have,
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noise_want
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);
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});
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});
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}
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#[test]
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fn keyswitch_inplace() {
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let module: Module<FFT64> = Module::<FFT64>::new(2048);
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let basek: usize = 12;
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let log_k_grlwe: usize = 60;
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let rows: usize = (log_k_grlwe + basek - 1) / basek;
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fn test_key_switch_inplace(log_n: usize, basek: usize, k_ksk: usize, sigma: f64, rank_in_s0s1: usize, rank_out_s0s1: usize) {
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let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
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let rows: usize = (k_ksk + basek - 1) / basek;
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let rank: usize = 1;
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let rank_out: usize = 1;
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let sigma: f64 = 3.2;
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let mut ct_grlwe_s0s1: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank_out);
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let mut ct_grlwe_s1s2: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank_out);
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let mut ct_gglwe_s0s1: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank_in_s0s1, rank_out_s0s1);
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let mut ct_gglwe_s1s2: GLWESwitchingKey<Vec<u8>, FFT64> =
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GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank_out_s0s1, rank_out_s0s1);
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let mut source_xs: Source = Source::new([0u8; 32]);
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let mut source_xe: Source = Source::new([0u8; 32]);
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let mut source_xa: Source = Source::new([0u8; 32]);
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let mut scratch: ScratchOwned = ScratchOwned::new(
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GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ct_grlwe_s0s1.size())
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| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_grlwe_s0s1.size())
|
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| GLWESwitchingKey::keyswitch_inplace_scratch_space(&module, ct_grlwe_s0s1.size(), ct_grlwe_s1s2.size()),
|
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GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank_out_s0s1, ct_gglwe_s0s1.size())
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| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_gglwe_s0s1.size())
|
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| GLWESwitchingKey::keyswitch_inplace_scratch_space(
|
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&module,
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ct_gglwe_s0s1.size(),
|
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ct_gglwe_s0s1.rank(),
|
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ct_gglwe_s1s2.size(),
|
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),
|
||||
);
|
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|
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let mut sk0: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
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let mut sk0: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_in_s0s1);
|
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sk0.fill_ternary_prob(0.5, &mut source_xs);
|
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|
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let mut sk0_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
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let mut sk0_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_in_s0s1);
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sk0_dft.dft(&module, &sk0);
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|
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let mut sk1: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
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let mut sk1: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out_s0s1);
|
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sk1.fill_ternary_prob(0.5, &mut source_xs);
|
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|
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let mut sk1_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
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let mut sk1_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out_s0s1);
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sk1_dft.dft(&module, &sk1);
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|
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let mut sk2: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
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let mut sk2: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out_s0s1);
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sk2.fill_ternary_prob(0.5, &mut source_xs);
|
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|
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let mut sk2_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
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let mut sk2_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out_s0s1);
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sk2_dft.dft(&module, &sk2);
|
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|
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// GRLWE_{s1}(s0) = s0 -> s1
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ct_grlwe_s0s1.encrypt_sk(
|
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// gglwe_{s1}(s0) = s0 -> s1
|
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ct_gglwe_s0s1.encrypt_sk(
|
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&module,
|
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&sk0.data,
|
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&sk0,
|
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&sk1_dft,
|
||||
&mut source_xa,
|
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&mut source_xe,
|
||||
@@ -234,10 +288,10 @@ fn keyswitch_inplace() {
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
// GRLWE_{s2}(s1) -> s1 -> s2
|
||||
ct_grlwe_s1s2.encrypt_sk(
|
||||
// gglwe_{s2}(s1) -> s1 -> s2
|
||||
ct_gglwe_s1s2.encrypt_sk(
|
||||
&module,
|
||||
&sk1.data,
|
||||
&sk1,
|
||||
&sk2_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
@@ -245,96 +299,93 @@ fn keyswitch_inplace() {
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
// GRLWE_{s1}(s0) (x) GRLWE_{s2}(s1) = GRLWE_{s2}(s0)
|
||||
ct_grlwe_s0s1.keyswitch_inplace(&module, &ct_grlwe_s1s2, scratch.borrow());
|
||||
// gglwe_{s1}(s0) (x) gglwe_{s2}(s1) = gglwe_{s2}(s0)
|
||||
ct_gglwe_s0s1.keyswitch_inplace(&module, &ct_gglwe_s1s2, scratch.borrow());
|
||||
|
||||
let ct_grlwe_s0s2: GLWESwitchingKey<Vec<u8>, FFT64> = ct_grlwe_s0s1;
|
||||
let ct_gglwe_s0s2: GLWESwitchingKey<Vec<u8>, FFT64> = ct_gglwe_s0s1;
|
||||
|
||||
let mut ct_rlwe_dft_s0s2: GLWECiphertextFourier<Vec<u8>, FFT64> =
|
||||
GLWECiphertextFourier::new(&module, basek, log_k_grlwe, rank);
|
||||
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, log_k_grlwe);
|
||||
let mut ct_glwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ksk, rank_out_s0s1);
|
||||
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ksk);
|
||||
|
||||
(0..ct_grlwe_s0s2.rows()).for_each(|row_i| {
|
||||
ct_grlwe_s0s2.get_row(&module, row_i, 0, &mut ct_rlwe_dft_s0s2);
|
||||
ct_rlwe_dft_s0s2.decrypt(&module, &mut pt, &sk2_dft, scratch.borrow());
|
||||
module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk0, 0);
|
||||
(0..ct_gglwe_s0s2.rank_in()).for_each(|col_i| {
|
||||
(0..ct_gglwe_s0s2.rows()).for_each(|row_i| {
|
||||
ct_gglwe_s0s2.get_row(&module, row_i, col_i, &mut ct_glwe_dft);
|
||||
ct_glwe_dft.decrypt(&module, &mut pt, &sk2_dft, scratch.borrow());
|
||||
module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk0, col_i);
|
||||
|
||||
let noise_have: f64 = pt.data.std(0, basek).log2();
|
||||
let noise_want: f64 = noise_grlwe_rlwe_product(
|
||||
module.n() as f64,
|
||||
basek,
|
||||
0.5,
|
||||
0.5,
|
||||
0f64,
|
||||
sigma * sigma,
|
||||
0f64,
|
||||
log_k_grlwe,
|
||||
log_k_grlwe,
|
||||
);
|
||||
let noise_have: f64 = pt.data.std(0, basek).log2();
|
||||
let noise_want: f64 = noise_gglwe_product(
|
||||
module.n() as f64,
|
||||
basek,
|
||||
0.5,
|
||||
0.5,
|
||||
0f64,
|
||||
sigma * sigma,
|
||||
0f64,
|
||||
rank_out_s0s1 as f64,
|
||||
k_ksk,
|
||||
k_ksk,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn external_product() {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(2048);
|
||||
let basek: usize = 12;
|
||||
let log_k_grlwe: usize = 60;
|
||||
let rows: usize = (log_k_grlwe + basek - 1) / basek;
|
||||
fn test_external_product(log_n: usize, basek: usize, k: usize, sigma: f64, rank_in: usize, rank_out: usize) {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
|
||||
|
||||
let rank: usize = 1;
|
||||
let rank_out: usize = 1;
|
||||
let rows: usize = (k + basek - 1) / basek;
|
||||
|
||||
let sigma: f64 = 3.2;
|
||||
|
||||
let mut ct_grlwe_in: GLWESwitchingKey<Vec<u8>, FFT64> =
|
||||
GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank_out);
|
||||
let mut ct_grlwe_out: GLWESwitchingKey<Vec<u8>, FFT64> =
|
||||
GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank_out);
|
||||
let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, basek, log_k_grlwe, rows, rank);
|
||||
let mut ct_gglwe_in: GLWESwitchingKey<Vec<u8>, FFT64> = GLWESwitchingKey::new(&module, basek, k, rows, rank_in, rank_out);
|
||||
let mut ct_gglwe_out: GLWESwitchingKey<Vec<u8>, FFT64> = GLWESwitchingKey::new(&module, basek, k, rows, rank_in, rank_out);
|
||||
let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, basek, k, rows, rank_out);
|
||||
|
||||
let mut pt_rgsw: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
|
||||
let mut pt_grlwe: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
|
||||
|
||||
let mut source_xs: Source = Source::new([0u8; 32]);
|
||||
let mut source_xe: Source = Source::new([0u8; 32]);
|
||||
let mut source_xa: Source = Source::new([0u8; 32]);
|
||||
|
||||
let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ct_grlwe_in.size())
|
||||
| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_grlwe_out.size())
|
||||
GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank_out, ct_gglwe_in.size())
|
||||
| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_gglwe_out.size())
|
||||
| GLWESwitchingKey::external_product_scratch_space(
|
||||
&module,
|
||||
ct_grlwe_out.size(),
|
||||
ct_grlwe_in.size(),
|
||||
ct_gglwe_out.size(),
|
||||
ct_gglwe_in.size(),
|
||||
ct_rgsw.size(),
|
||||
rank_out,
|
||||
)
|
||||
| GGSWCiphertext::encrypt_sk_scratch_space(&module, rank, ct_rgsw.size()),
|
||||
| GGSWCiphertext::encrypt_sk_scratch_space(&module, rank_out, ct_rgsw.size()),
|
||||
);
|
||||
|
||||
let k: usize = 1;
|
||||
let r: usize = 1;
|
||||
|
||||
pt_rgsw.raw_mut()[k] = 1; // X^{k}
|
||||
pt_rgsw.to_mut().raw_mut()[r] = 1; // X^{r}
|
||||
|
||||
pt_grlwe.fill_ternary_prob(0, 0.5, &mut source_xs);
|
||||
let mut sk_in: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_in);
|
||||
sk_in.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
sk.fill_ternary_prob(0.5, &mut source_xs);
|
||||
let mut sk_in_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_in);
|
||||
sk_in_dft.dft(&module, &sk_in);
|
||||
|
||||
let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
sk_dft.dft(&module, &sk);
|
||||
let mut sk_out: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out);
|
||||
sk_out.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
// GRLWE_{s1}(s0) = s0 -> s1
|
||||
ct_grlwe_in.encrypt_sk(
|
||||
let mut sk_out_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out);
|
||||
sk_out_dft.dft(&module, &sk_out);
|
||||
|
||||
// gglwe_{s1}(s0) = s0 -> s1
|
||||
ct_gglwe_in.encrypt_sk(
|
||||
&module,
|
||||
&pt_grlwe,
|
||||
&sk_dft,
|
||||
&sk_in,
|
||||
&sk_out_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
@@ -344,104 +395,104 @@ fn external_product() {
|
||||
ct_rgsw.encrypt_sk(
|
||||
&module,
|
||||
&pt_rgsw,
|
||||
&sk_dft,
|
||||
&sk_out_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
// GRLWE_(m) (x) RGSW_(X^k) = GRLWE_(m * X^k)
|
||||
ct_grlwe_out.external_product(&module, &ct_grlwe_in, &ct_rgsw, scratch.borrow());
|
||||
// gglwe_(m) (x) RGSW_(X^k) = gglwe_(m * X^k)
|
||||
ct_gglwe_out.external_product(&module, &ct_gglwe_in, &ct_rgsw, scratch.borrow());
|
||||
|
||||
let mut ct_rlwe_dft_s0s2: GLWECiphertextFourier<Vec<u8>, FFT64> =
|
||||
GLWECiphertextFourier::new(&module, basek, log_k_grlwe, rank);
|
||||
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, log_k_grlwe);
|
||||
let mut ct_glwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k, rank_out);
|
||||
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k);
|
||||
|
||||
module.vec_znx_rotate_inplace(k as i64, &mut pt_grlwe, 0);
|
||||
(0..rank_in).for_each(|i| {
|
||||
module.vec_znx_rotate_inplace(r as i64, &mut sk_in.data, i); // * X^{r}
|
||||
});
|
||||
|
||||
(0..ct_grlwe_out.rows()).for_each(|row_i| {
|
||||
ct_grlwe_out.get_row(&module, row_i, 0, &mut ct_rlwe_dft_s0s2);
|
||||
ct_rlwe_dft_s0s2.decrypt(&module, &mut pt, &sk_dft, scratch.borrow());
|
||||
module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &pt_grlwe, 0);
|
||||
(0..rank_in).for_each(|col_i| {
|
||||
(0..ct_gglwe_out.rows()).for_each(|row_i| {
|
||||
ct_gglwe_out.get_row(&module, row_i, col_i, &mut ct_glwe_dft);
|
||||
ct_glwe_dft.decrypt(&module, &mut pt, &sk_out_dft, scratch.borrow());
|
||||
module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk_in, col_i);
|
||||
|
||||
let noise_have: f64 = pt.data.std(0, basek).log2();
|
||||
let noise_have: f64 = pt.data.std(0, basek).log2();
|
||||
|
||||
let var_gct_err_lhs: f64 = sigma * sigma;
|
||||
let var_gct_err_rhs: f64 = 0f64;
|
||||
let var_gct_err_lhs: f64 = sigma * sigma;
|
||||
let var_gct_err_rhs: f64 = 0f64;
|
||||
|
||||
let var_msg: f64 = 1f64 / module.n() as f64; // X^{k}
|
||||
let var_a0_err: f64 = sigma * sigma;
|
||||
let var_a1_err: f64 = 1f64 / 12f64;
|
||||
let var_msg: f64 = 1f64 / module.n() as f64; // X^{k}
|
||||
let var_a0_err: f64 = sigma * sigma;
|
||||
let var_a1_err: f64 = 1f64 / 12f64;
|
||||
|
||||
let noise_want: f64 = noise_rgsw_product(
|
||||
module.n() as f64,
|
||||
basek,
|
||||
0.5,
|
||||
var_msg,
|
||||
var_a0_err,
|
||||
var_a1_err,
|
||||
var_gct_err_lhs,
|
||||
var_gct_err_rhs,
|
||||
log_k_grlwe,
|
||||
log_k_grlwe,
|
||||
);
|
||||
let noise_want: f64 = noise_ggsw_product(
|
||||
module.n() as f64,
|
||||
basek,
|
||||
0.5,
|
||||
var_msg,
|
||||
var_a0_err,
|
||||
var_a1_err,
|
||||
var_gct_err_lhs,
|
||||
var_gct_err_rhs,
|
||||
rank_out as f64,
|
||||
k,
|
||||
k,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn external_product_inplace() {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(2048);
|
||||
let basek: usize = 12;
|
||||
let log_k_grlwe: usize = 60;
|
||||
let rows: usize = (log_k_grlwe + basek - 1) / basek;
|
||||
fn test_external_product_inplace(log_n: usize, basek: usize, k: usize, sigma: f64, rank_in: usize, rank_out: usize) {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
|
||||
|
||||
let rank: usize = 1;
|
||||
let rank_out: usize = 1;
|
||||
let rows: usize = (k + basek - 1) / basek;
|
||||
|
||||
let sigma: f64 = 3.2;
|
||||
|
||||
let mut ct_grlwe: GLWESwitchingKey<Vec<u8>, FFT64> = GLWESwitchingKey::new(&module, basek, log_k_grlwe, rows, rank, rank_out);
|
||||
let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, basek, log_k_grlwe, rows, rank);
|
||||
let mut ct_gglwe: GLWESwitchingKey<Vec<u8>, FFT64> = GLWESwitchingKey::new(&module, basek, k, rows, rank_in, rank_out);
|
||||
let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, basek, k, rows, rank_out);
|
||||
|
||||
let mut pt_rgsw: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
|
||||
let mut pt_grlwe: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
|
||||
|
||||
let mut source_xs: Source = Source::new([0u8; 32]);
|
||||
let mut source_xe: Source = Source::new([0u8; 32]);
|
||||
let mut source_xa: Source = Source::new([0u8; 32]);
|
||||
|
||||
let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ct_grlwe.size())
|
||||
| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_grlwe.size())
|
||||
| GLWESwitchingKey::external_product_inplace_scratch_space(&module, ct_grlwe.size(), ct_rgsw.size())
|
||||
| GGSWCiphertext::encrypt_sk_scratch_space(&module, rank, ct_rgsw.size()),
|
||||
GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank_out, ct_gglwe.size())
|
||||
| GLWECiphertextFourier::decrypt_scratch_space(&module, ct_gglwe.size())
|
||||
| GLWESwitchingKey::external_product_inplace_scratch_space(&module, ct_gglwe.size(), ct_rgsw.size(), rank_out)
|
||||
| GGSWCiphertext::encrypt_sk_scratch_space(&module, rank_out, ct_rgsw.size()),
|
||||
);
|
||||
|
||||
let k: usize = 1;
|
||||
let r: usize = 1;
|
||||
|
||||
pt_rgsw.raw_mut()[k] = 1; // X^{k}
|
||||
pt_rgsw.to_mut().raw_mut()[r] = 1; // X^{r}
|
||||
|
||||
pt_grlwe.fill_ternary_prob(0, 0.5, &mut source_xs);
|
||||
let mut sk_in: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_in);
|
||||
sk_in.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
sk.fill_ternary_prob(0.5, &mut source_xs);
|
||||
let mut sk_in_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_in);
|
||||
sk_in_dft.dft(&module, &sk_in);
|
||||
|
||||
let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
sk_dft.dft(&module, &sk);
|
||||
let mut sk_out: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out);
|
||||
sk_out.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
// GRLWE_{s1}(s0) = s0 -> s1
|
||||
ct_grlwe.encrypt_sk(
|
||||
let mut sk_out_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out);
|
||||
sk_out_dft.dft(&module, &sk_out);
|
||||
|
||||
// gglwe_{s1}(s0) = s0 -> s1
|
||||
ct_gglwe.encrypt_sk(
|
||||
&module,
|
||||
&pt_grlwe,
|
||||
&sk_dft,
|
||||
&sk_in,
|
||||
&sk_out_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
@@ -451,57 +502,62 @@ fn external_product_inplace() {
|
||||
ct_rgsw.encrypt_sk(
|
||||
&module,
|
||||
&pt_rgsw,
|
||||
&sk_dft,
|
||||
&sk_out_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
// GRLWE_(m) (x) RGSW_(X^k) = GRLWE_(m * X^k)
|
||||
ct_grlwe.external_product_inplace(&module, &ct_rgsw, scratch.borrow());
|
||||
// gglwe_(m) (x) RGSW_(X^k) = gglwe_(m * X^k)
|
||||
ct_gglwe.external_product_inplace(&module, &ct_rgsw, scratch.borrow());
|
||||
|
||||
let mut ct_rlwe_dft_s0s2: GLWECiphertextFourier<Vec<u8>, FFT64> =
|
||||
GLWECiphertextFourier::new(&module, basek, log_k_grlwe, rank);
|
||||
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, log_k_grlwe);
|
||||
let mut ct_glwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k, rank_out);
|
||||
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k);
|
||||
|
||||
module.vec_znx_rotate_inplace(k as i64, &mut pt_grlwe, 0);
|
||||
(0..rank_in).for_each(|i| {
|
||||
module.vec_znx_rotate_inplace(r as i64, &mut sk_in.data, i); // * X^{r}
|
||||
});
|
||||
|
||||
(0..ct_grlwe.rows()).for_each(|row_i| {
|
||||
ct_grlwe.get_row(&module, row_i, 0, &mut ct_rlwe_dft_s0s2);
|
||||
ct_rlwe_dft_s0s2.decrypt(&module, &mut pt, &sk_dft, scratch.borrow());
|
||||
module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &pt_grlwe, 0);
|
||||
(0..rank_in).for_each(|col_i| {
|
||||
(0..ct_gglwe.rows()).for_each(|row_i| {
|
||||
ct_gglwe.get_row(&module, row_i, col_i, &mut ct_glwe_dft);
|
||||
ct_glwe_dft.decrypt(&module, &mut pt, &sk_out_dft, scratch.borrow());
|
||||
module.vec_znx_sub_scalar_inplace(&mut pt, 0, row_i, &sk_in, col_i);
|
||||
|
||||
let noise_have: f64 = pt.data.std(0, basek).log2();
|
||||
let noise_have: f64 = pt.data.std(0, basek).log2();
|
||||
|
||||
let var_gct_err_lhs: f64 = sigma * sigma;
|
||||
let var_gct_err_rhs: f64 = 0f64;
|
||||
let var_gct_err_lhs: f64 = sigma * sigma;
|
||||
let var_gct_err_rhs: f64 = 0f64;
|
||||
|
||||
let var_msg: f64 = 1f64 / module.n() as f64; // X^{k}
|
||||
let var_a0_err: f64 = sigma * sigma;
|
||||
let var_a1_err: f64 = 1f64 / 12f64;
|
||||
let var_msg: f64 = 1f64 / module.n() as f64; // X^{k}
|
||||
let var_a0_err: f64 = sigma * sigma;
|
||||
let var_a1_err: f64 = 1f64 / 12f64;
|
||||
|
||||
let noise_want: f64 = noise_rgsw_product(
|
||||
module.n() as f64,
|
||||
basek,
|
||||
0.5,
|
||||
var_msg,
|
||||
var_a0_err,
|
||||
var_a1_err,
|
||||
var_gct_err_lhs,
|
||||
var_gct_err_rhs,
|
||||
log_k_grlwe,
|
||||
log_k_grlwe,
|
||||
);
|
||||
let noise_want: f64 = noise_ggsw_product(
|
||||
module.n() as f64,
|
||||
basek,
|
||||
0.5,
|
||||
var_msg,
|
||||
var_a0_err,
|
||||
var_a1_err,
|
||||
var_gct_err_lhs,
|
||||
var_gct_err_rhs,
|
||||
rank_out as f64,
|
||||
k,
|
||||
k,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
pub(crate) fn noise_gglwe_product(
|
||||
n: f64,
|
||||
basek: usize,
|
||||
|
||||
Reference in New Issue
Block a user