mirror of
https://github.com/arnaucube/poulpy.git
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fixed tests for ciphertext fourier
This commit is contained in:
Jean-Philippe Bossuat
@@ -1,438 +1,445 @@
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// use crate::{
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// elem::Infos,
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// ggsw_ciphertext::GGSWCiphertext,
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// glwe_ciphertext::GLWECiphertext,
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// glwe_ciphertext_fourier::GLWECiphertextFourier,
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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::{gglwe::noise_grlwe_rlwe_product, ggsw::noise_rgsw_product},
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// };
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// use base2k::{FFT64, FillUniform, Module, ScalarZnx, ScalarZnxAlloc, ScratchOwned, Stats, VecZnxOps, VecZnxToMut, ZnxViewMut};
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// use sampling::source::Source;
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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 log_base2k: usize = 12;
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// let log_k_grlwe: usize = 60;
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// let log_k_rlwe_in: usize = 45;
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// let log_k_rlwe_out: usize = 60;
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// let rows: usize = (log_k_rlwe_in + log_base2k - 1) / log_base2k;
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//
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// let rank: usize = 1;
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//
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// let sigma: f64 = 3.2;
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//
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// let mut ct_grlwe: GLWESwitchingKey<Vec<u8>, FFT64> =
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// GLWESwitchingKey::new(&module, log_base2k, log_k_grlwe, rows, rank, rank);
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// let mut ct_rlwe_in: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, log_base2k, log_k_rlwe_in, rank);
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// let mut ct_rlwe_in_dft: GLWECiphertextFourier<Vec<u8>, FFT64> =
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// GLWECiphertextFourier::new(&module, log_base2k, log_k_rlwe_in, rank);
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// let mut ct_rlwe_out: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, log_base2k, log_k_rlwe_out, rank);
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// let mut ct_rlwe_out_dft: GLWECiphertextFourier<Vec<u8>, FFT64> =
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// GLWECiphertextFourier::new(&module, log_base2k, log_k_rlwe_out, rank);
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// let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe_in);
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// let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe_out);
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//
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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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//
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// Random input plaintext
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// pt_want
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// .data
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// .fill_uniform(log_base2k, 0, pt_want.size(), &mut source_xa);
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//
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// let mut scratch: ScratchOwned = ScratchOwned::new(
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// GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ct_grlwe.size())
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// | GLWECiphertext::decrypt_scratch_space(&module, ct_rlwe_out.size())
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// | GLWECiphertext::encrypt_sk_scratch_space(&module, rank, ct_rlwe_in.size())
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// | GLWECiphertextFourier::keyswitch_scratch_space(
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// &module,
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// ct_rlwe_out.size(),
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// ct_rlwe_in.size(),
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// ct_grlwe.size(),
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// ),
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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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// 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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// 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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// 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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// sk1_dft.dft(&module, &sk1);
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//
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// ct_grlwe.encrypt_sk(
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// &module,
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// &sk0.data,
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// &sk1_dft,
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// &mut source_xa,
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// &mut source_xe,
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// sigma,
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// scratch.borrow(),
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// );
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//
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// ct_rlwe_in.encrypt_sk(
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// &module,
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// &pt_want,
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// &sk0_dft,
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// &mut source_xa,
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// &mut source_xe,
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// sigma,
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// scratch.borrow(),
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// );
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//
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// ct_rlwe_in.dft(&module, &mut ct_rlwe_in_dft);
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// ct_rlwe_out_dft.keyswitch(&module, &ct_rlwe_in_dft, &ct_grlwe, scratch.borrow());
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// ct_rlwe_out_dft.idft(&module, &mut ct_rlwe_out, scratch.borrow());
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//
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// ct_rlwe_out.decrypt(&module, &mut pt_have, &sk1_dft, scratch.borrow());
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//
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// module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
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//
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// let noise_have: f64 = pt_have.data.std(0, log_base2k).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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// log_base2k,
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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_rlwe_in,
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// log_k_grlwe,
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// );
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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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// #[test]
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// fn keyswich_inplace() {
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// let module: Module<FFT64> = Module::<FFT64>::new(2048);
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// let log_base2k: usize = 12;
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// let log_k_grlwe: usize = 60;
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// let log_k_rlwe: usize = 45;
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// let rows: usize = (log_k_rlwe + log_base2k - 1) / log_base2k;
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// let rank: usize = 1;
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//
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// let sigma: f64 = 3.2;
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//
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// let mut ct_grlwe: GLWESwitchingKey<Vec<u8>, FFT64> =
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// GLWESwitchingKey::new(&module, log_base2k, log_k_grlwe, rows, rank, rank);
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// let mut ct_rlwe: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, log_base2k, log_k_rlwe, rank);
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// let mut ct_rlwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> =
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// GLWECiphertextFourier::new(&module, log_base2k, log_k_rlwe, rank);
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// let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe);
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// let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe);
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//
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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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//
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// Random input plaintext
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// pt_want
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// .data
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// .fill_uniform(log_base2k, 0, pt_want.size(), &mut source_xa);
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//
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// let mut scratch: ScratchOwned = ScratchOwned::new(
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// GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ct_grlwe.size())
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// | GLWECiphertext::decrypt_scratch_space(&module, ct_rlwe.size())
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// | GLWECiphertext::encrypt_sk_scratch_space(&module, rank, ct_rlwe.size())
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// | GLWECiphertextFourier::keyswitch_inplace_scratch_space(&module, ct_rlwe_dft.size(), ct_grlwe.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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// 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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// 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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// 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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// sk1_dft.dft(&module, &sk1);
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//
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// ct_grlwe.encrypt_sk(
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// &module,
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// &sk0.data,
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// &sk1_dft,
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// &mut source_xa,
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// &mut source_xe,
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// sigma,
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// scratch.borrow(),
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// );
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//
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// ct_rlwe.encrypt_sk(
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// &module,
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// &pt_want,
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// &sk0_dft,
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// &mut source_xa,
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// &mut source_xe,
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// sigma,
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// scratch.borrow(),
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// );
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//
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// ct_rlwe.dft(&module, &mut ct_rlwe_dft);
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// ct_rlwe_dft.keyswitch_inplace(&module, &ct_grlwe, scratch.borrow());
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// ct_rlwe_dft.idft(&module, &mut ct_rlwe, scratch.borrow());
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//
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// ct_rlwe.decrypt(&module, &mut pt_have, &sk1_dft, scratch.borrow());
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//
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// module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
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//
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// let noise_have: f64 = pt_have.data.std(0, log_base2k).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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// log_base2k,
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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_rlwe,
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// log_k_grlwe,
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// );
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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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// #[test]
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// fn external_product() {
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// let module: Module<FFT64> = Module::<FFT64>::new(2048);
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// let log_base2k: usize = 12;
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// let log_k_grlwe: usize = 60;
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// let log_k_rlwe_in: usize = 45;
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// let log_k_rlwe_out: usize = 60;
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// let rows: usize = (log_k_rlwe_in + log_base2k - 1) / log_base2k;
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// let rank: usize = 1;
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//
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// let sigma: f64 = 3.2;
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//
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// let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, log_base2k, log_k_grlwe, rows, rank);
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// let mut ct_rlwe_in: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, log_base2k, log_k_rlwe_in, rank);
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// let mut ct_rlwe_out: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, log_base2k, log_k_rlwe_out, rank);
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// let mut ct_rlwe_dft_in: GLWECiphertextFourier<Vec<u8>, FFT64> =
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// GLWECiphertextFourier::new(&module, log_base2k, log_k_rlwe_in, rank);
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// let mut ct_rlwe_dft_out: GLWECiphertextFourier<Vec<u8>, FFT64> =
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// GLWECiphertextFourier::new(&module, log_base2k, log_k_rlwe_out, rank);
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// let mut pt_rgsw: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
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// let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe_in);
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// let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe_out);
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//
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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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//
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// Random input plaintext
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// pt_want
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// .data
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// .fill_uniform(log_base2k, 0, pt_want.size(), &mut source_xa);
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//
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// pt_want.to_mut().at_mut(0, 0)[1] = 1;
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//
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// let k: usize = 1;
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//
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// pt_rgsw.raw_mut()[k] = 1; // X^{k}
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//
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// let mut scratch: ScratchOwned = ScratchOwned::new(
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// GGSWCiphertext::encrypt_sk_scratch_space(&module, rank, ct_rgsw.size())
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// | GLWECiphertext::decrypt_scratch_space(&module, ct_rlwe_out.size())
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// | GLWECiphertext::encrypt_sk_scratch_space(&module, rank, ct_rlwe_in.size())
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// | GLWECiphertext::external_product_scratch_space(
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// &module,
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// ct_rlwe_out.size(),
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// ct_rlwe_in.size(),
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// ct_rgsw.size(),
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// ),
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// );
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//
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// let mut sk: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
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// sk.fill_ternary_prob(0.5, &mut source_xs);
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//
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// let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
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// sk_dft.dft(&module, &sk);
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//
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// ct_rgsw.encrypt_sk(
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// &module,
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// &pt_rgsw,
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// &sk_dft,
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// &mut source_xa,
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// &mut source_xe,
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// sigma,
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// scratch.borrow(),
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// );
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//
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// ct_rlwe_in.encrypt_sk(
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// &module,
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// &pt_want,
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// &sk_dft,
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// &mut source_xa,
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// &mut source_xe,
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// sigma,
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// scratch.borrow(),
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// );
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//
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// ct_rlwe_in.dft(&module, &mut ct_rlwe_dft_in);
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// ct_rlwe_dft_out.external_product(&module, &ct_rlwe_dft_in, &ct_rgsw, scratch.borrow());
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// ct_rlwe_dft_out.idft(&module, &mut ct_rlwe_out, scratch.borrow());
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//
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// ct_rlwe_out.decrypt(&module, &mut pt_have, &sk_dft, scratch.borrow());
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//
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// module.vec_znx_rotate_inplace(k as i64, &mut pt_want, 0);
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//
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// module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
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//
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// let noise_have: f64 = pt_have.data.std(0, log_base2k).log2();
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//
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// let var_gct_err_lhs: f64 = sigma * sigma;
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// let var_gct_err_rhs: f64 = 0f64;
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//
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// let var_msg: f64 = 1f64 / module.n() as f64; // X^{k}
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// let var_a0_err: f64 = sigma * sigma;
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// let var_a1_err: f64 = 1f64 / 12f64;
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//
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// let noise_want: f64 = noise_rgsw_product(
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// module.n() as f64,
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// log_base2k,
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// 0.5,
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// var_msg,
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// var_a0_err,
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// var_a1_err,
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// var_gct_err_lhs,
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// var_gct_err_rhs,
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// log_k_rlwe_in,
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// log_k_grlwe,
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// );
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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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// #[test]
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// fn external_product_inplace() {
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// let module: Module<FFT64> = Module::<FFT64>::new(2048);
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// let log_base2k: usize = 12;
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// let log_k_grlwe: usize = 60;
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// let log_k_rlwe_in: usize = 45;
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// let log_k_rlwe_out: usize = 60;
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// let rows: usize = (log_k_rlwe_in + log_base2k - 1) / log_base2k;
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// let rank: usize = 1;
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//
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// let sigma: f64 = 3.2;
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//
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// let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, log_base2k, log_k_grlwe, rows, rank);
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// let mut ct_rlwe: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, log_base2k, log_k_rlwe_in, rank);
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// let mut ct_rlwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> =
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// GLWECiphertextFourier::new(&module, log_base2k, log_k_rlwe_in, rank);
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// let mut pt_rgsw: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
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// let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe_in);
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// let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, log_base2k, log_k_rlwe_out);
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//
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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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//
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// Random input plaintext
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// pt_want
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// .data
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// .fill_uniform(log_base2k, 0, pt_want.size(), &mut source_xa);
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//
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// pt_want.to_mut().at_mut(0, 0)[1] = 1;
|
||||
//
|
||||
// let k: usize = 1;
|
||||
//
|
||||
// pt_rgsw.raw_mut()[k] = 1; // X^{k}
|
||||
//
|
||||
// let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
// GGSWCiphertext::encrypt_sk_scratch_space(&module, rank, ct_rgsw.size())
|
||||
// | GLWECiphertext::decrypt_scratch_space(&module, ct_rlwe.size())
|
||||
// | GLWECiphertext::encrypt_sk_scratch_space(&module, rank, ct_rlwe.size())
|
||||
// | GLWECiphertext::external_product_inplace_scratch_space(&module, ct_rlwe.size(), ct_rgsw.size()),
|
||||
// );
|
||||
//
|
||||
// let mut sk: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
// sk.fill_ternary_prob(0.5, &mut source_xs);
|
||||
//
|
||||
// let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
// sk_dft.dft(&module, &sk);
|
||||
//
|
||||
// ct_rgsw.encrypt_sk(
|
||||
// &module,
|
||||
// &pt_rgsw,
|
||||
// &sk_dft,
|
||||
// &mut source_xa,
|
||||
// &mut source_xe,
|
||||
// sigma,
|
||||
// scratch.borrow(),
|
||||
// );
|
||||
//
|
||||
// ct_rlwe.encrypt_sk(
|
||||
// &module,
|
||||
// &pt_want,
|
||||
// &sk_dft,
|
||||
// &mut source_xa,
|
||||
// &mut source_xe,
|
||||
// sigma,
|
||||
// scratch.borrow(),
|
||||
// );
|
||||
//
|
||||
// ct_rlwe.dft(&module, &mut ct_rlwe_dft);
|
||||
// ct_rlwe_dft.external_product_inplace(&module, &ct_rgsw, scratch.borrow());
|
||||
// ct_rlwe_dft.idft(&module, &mut ct_rlwe, scratch.borrow());
|
||||
//
|
||||
// ct_rlwe.decrypt(&module, &mut pt_have, &sk_dft, scratch.borrow());
|
||||
//
|
||||
// module.vec_znx_rotate_inplace(k as i64, &mut pt_want, 0);
|
||||
//
|
||||
// module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
|
||||
//
|
||||
// let noise_have: f64 = pt_have.data.std(0, log_base2k).log2();
|
||||
//
|
||||
// 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 noise_want: f64 = noise_rgsw_product(
|
||||
// module.n() as f64,
|
||||
// log_base2k,
|
||||
// 0.5,
|
||||
// var_msg,
|
||||
// var_a0_err,
|
||||
// var_a1_err,
|
||||
// var_gct_err_lhs,
|
||||
// var_gct_err_rhs,
|
||||
// log_k_rlwe_in,
|
||||
// log_k_grlwe,
|
||||
// );
|
||||
//
|
||||
// assert!(
|
||||
// (noise_have - noise_want).abs() <= 0.1,
|
||||
// "{} {}",
|
||||
// noise_have,
|
||||
// noise_want
|
||||
// );
|
||||
// }
|
||||
use crate::{
|
||||
elem::Infos,
|
||||
ggsw_ciphertext::GGSWCiphertext,
|
||||
glwe_ciphertext::GLWECiphertext,
|
||||
glwe_ciphertext_fourier::GLWECiphertextFourier,
|
||||
glwe_plaintext::GLWEPlaintext,
|
||||
keys::{SecretKey, SecretKeyFourier},
|
||||
keyswitch_key::GLWESwitchingKey,
|
||||
test_fft64::{gglwe::noise_gglwe_product, ggsw::noise_ggsw_gglwe_product},
|
||||
};
|
||||
use base2k::{FFT64, FillUniform, Module, ScalarZnx, ScalarZnxAlloc, ScratchOwned, Stats, VecZnxOps, VecZnxToMut, ZnxViewMut};
|
||||
use sampling::source::Source;
|
||||
|
||||
#[test]
|
||||
fn keyswitch() {
|
||||
(1..4).for_each(|rank_in| {
|
||||
(1..4).for_each(|rank_out| {
|
||||
println!("test keyswitch rank_in: {} rank_out: {}", rank_in, rank_out);
|
||||
test_keyswitch(12, 12, 60, 45, 60, rank_in, rank_out, 3.2);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn keyswitch_inplace() {
|
||||
(1..4).for_each(|rank| {
|
||||
println!("test keyswitch_inplace rank: {}", rank);
|
||||
test_keyswitch_inplace(12, 12, 60, 45, rank, 3.2);
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn external_product() {
|
||||
(1..4).for_each(|rank| {
|
||||
println!("test external_product rank: {}", rank);
|
||||
test_external_product(12, 12, 60, 45, 60, rank, 3.2);
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn external_product_inplace() {
|
||||
(1..4).for_each(|rank| {
|
||||
println!("test external_product rank: {}", rank);
|
||||
test_external_product_inplace(12, 15, 60, 60, rank, 3.2);
|
||||
});
|
||||
}
|
||||
|
||||
fn test_keyswitch(
|
||||
log_n: usize,
|
||||
basek: usize,
|
||||
k_ksk: usize,
|
||||
k_ct_in: usize,
|
||||
k_ct_out: usize,
|
||||
rank_in: usize,
|
||||
rank_out: usize,
|
||||
sigma: f64,
|
||||
) {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
|
||||
|
||||
let rows: usize = (k_ct_in + basek - 1) / basek;
|
||||
|
||||
let mut ksk: GLWESwitchingKey<Vec<u8>, FFT64> = GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank_in, rank_out);
|
||||
let mut ct_glwe_in: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, basek, k_ct_in, rank_in);
|
||||
let mut ct_glwe_dft_in: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ct_in, rank_in);
|
||||
let mut ct_glwe_out: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, basek, k_ct_out, rank_out);
|
||||
let mut ct_glwe_dft_out: GLWECiphertextFourier<Vec<u8>, FFT64> =
|
||||
GLWECiphertextFourier::new(&module, basek, k_ct_out, rank_out);
|
||||
let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct_in);
|
||||
let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct_out);
|
||||
|
||||
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]);
|
||||
|
||||
// Random input plaintext
|
||||
pt_want
|
||||
.data
|
||||
.fill_uniform(basek, 0, pt_want.size(), &mut source_xa);
|
||||
|
||||
let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank_out, ksk.size())
|
||||
| GLWECiphertext::decrypt_scratch_space(&module, ct_glwe_out.size())
|
||||
| GLWECiphertext::encrypt_sk_scratch_space(&module, ct_glwe_in.size())
|
||||
| GLWECiphertextFourier::keyswitch_scratch_space(
|
||||
&module,
|
||||
ct_glwe_out.size(),
|
||||
ct_glwe_in.size(),
|
||||
ksk.size(),
|
||||
rank_in,
|
||||
rank_out,
|
||||
),
|
||||
);
|
||||
|
||||
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_in_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_in);
|
||||
sk_in_dft.dft(&module, &sk_in);
|
||||
|
||||
let mut sk_out: SecretKey<Vec<u8>> = SecretKey::new(&module, rank_out);
|
||||
sk_out.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk_out_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank_out);
|
||||
sk_out_dft.dft(&module, &sk_out);
|
||||
|
||||
ksk.encrypt_sk(
|
||||
&module,
|
||||
&sk_in,
|
||||
&sk_out_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct_glwe_in.encrypt_sk(
|
||||
&module,
|
||||
&pt_want,
|
||||
&sk_in_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct_glwe_in.dft(&module, &mut ct_glwe_dft_in);
|
||||
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());
|
||||
|
||||
module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
|
||||
|
||||
let noise_have: f64 = pt_have.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_in as f64,
|
||||
k_ct_in,
|
||||
k_ksk,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
}
|
||||
|
||||
fn test_keyswitch_inplace(log_n: usize, basek: usize, k_ksk: usize, k_ct: usize, rank: usize, sigma: f64) {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
|
||||
let rows: usize = (k_ct + basek - 1) / basek;
|
||||
|
||||
let mut ksk: GLWESwitchingKey<Vec<u8>, FFT64> = GLWESwitchingKey::new(&module, basek, k_ksk, rows, rank, rank);
|
||||
let mut ct_glwe: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, basek, k_ct, rank);
|
||||
let mut ct_rlwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ct, rank);
|
||||
let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct);
|
||||
let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct);
|
||||
|
||||
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]);
|
||||
|
||||
// Random input plaintext
|
||||
pt_want
|
||||
.data
|
||||
.fill_uniform(basek, 0, pt_want.size(), &mut source_xa);
|
||||
|
||||
let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
GLWESwitchingKey::encrypt_sk_scratch_space(&module, rank, ksk.size())
|
||||
| GLWECiphertext::decrypt_scratch_space(&module, ct_glwe.size())
|
||||
| GLWECiphertext::encrypt_sk_scratch_space(&module, ct_glwe.size())
|
||||
| GLWECiphertextFourier::keyswitch_inplace_scratch_space(&module, ct_rlwe_dft.size(), ksk.size(), rank),
|
||||
);
|
||||
|
||||
let mut sk_in: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
sk_in.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk_in_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
sk_in_dft.dft(&module, &sk_in);
|
||||
|
||||
let mut sk_out: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
sk_out.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk_out_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
sk_out_dft.dft(&module, &sk_out);
|
||||
|
||||
ksk.encrypt_sk(
|
||||
&module,
|
||||
&sk_in,
|
||||
&sk_out_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct_glwe.encrypt_sk(
|
||||
&module,
|
||||
&pt_want,
|
||||
&sk_in_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct_glwe.dft(&module, &mut ct_rlwe_dft);
|
||||
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());
|
||||
|
||||
module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
|
||||
|
||||
let noise_have: f64 = pt_have.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 as f64,
|
||||
k_ct,
|
||||
k_ksk,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
}
|
||||
|
||||
fn test_external_product(log_n: usize, basek: usize, k_ggsw: usize, k_ct_in: usize, k_ct_out: usize, rank: usize, sigma: f64) {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
|
||||
|
||||
let rows: usize = (k_ct_in + basek - 1) / basek;
|
||||
|
||||
let mut ct_rgsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, basek, k_ggsw, rows, rank);
|
||||
let mut ct_in: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, basek, k_ct_in, rank);
|
||||
let mut ct_out: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, basek, k_ct_out, rank);
|
||||
let mut ct_in_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ct_in, rank);
|
||||
let mut ct_out_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ct_out, rank);
|
||||
let mut pt_rgsw: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
|
||||
let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct_in);
|
||||
let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct_out);
|
||||
|
||||
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]);
|
||||
|
||||
// Random input plaintext
|
||||
pt_want
|
||||
.data
|
||||
.fill_uniform(basek, 0, pt_want.size(), &mut source_xa);
|
||||
|
||||
pt_want.to_mut().at_mut(0, 0)[1] = 1;
|
||||
|
||||
let k: usize = 1;
|
||||
|
||||
pt_rgsw.raw_mut()[k] = 1; // X^{k}
|
||||
|
||||
let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
GGSWCiphertext::encrypt_sk_scratch_space(&module, rank, ct_rgsw.size())
|
||||
| GLWECiphertext::decrypt_scratch_space(&module, ct_out.size())
|
||||
| GLWECiphertext::encrypt_sk_scratch_space(&module, ct_in.size())
|
||||
| GLWECiphertextFourier::external_product_scratch_space(&module, ct_out.size(), ct_in.size(), ct_rgsw.size(), rank),
|
||||
);
|
||||
|
||||
let mut sk: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
sk.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
sk_dft.dft(&module, &sk);
|
||||
|
||||
ct_rgsw.encrypt_sk(
|
||||
&module,
|
||||
&pt_rgsw,
|
||||
&sk_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct_in.encrypt_sk(
|
||||
&module,
|
||||
&pt_want,
|
||||
&sk_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct_in.dft(&module, &mut ct_in_dft);
|
||||
ct_out_dft.external_product(&module, &ct_in_dft, &ct_rgsw, scratch.borrow());
|
||||
ct_out_dft.idft(&module, &mut ct_out, scratch.borrow());
|
||||
|
||||
ct_out.decrypt(&module, &mut pt_have, &sk_dft, scratch.borrow());
|
||||
|
||||
module.vec_znx_rotate_inplace(k as i64, &mut pt_want, 0);
|
||||
|
||||
module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
|
||||
|
||||
let noise_have: f64 = pt_have.data.std(0, basek).log2();
|
||||
|
||||
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 noise_want: f64 = noise_ggsw_gglwe_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 as f64,
|
||||
k_ct_in,
|
||||
k_ggsw,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
}
|
||||
|
||||
fn test_external_product_inplace(log_n: usize, basek: usize, k_ggsw: usize, k_ct: usize, rank: usize, sigma: f64) {
|
||||
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
|
||||
let rows: usize = (k_ct + basek - 1) / basek;
|
||||
|
||||
let mut ct_ggsw: GGSWCiphertext<Vec<u8>, FFT64> = GGSWCiphertext::new(&module, basek, k_ggsw, rows, rank);
|
||||
let mut ct: GLWECiphertext<Vec<u8>> = GLWECiphertext::new(&module, basek, k_ct, rank);
|
||||
let mut ct_rlwe_dft: GLWECiphertextFourier<Vec<u8>, FFT64> = GLWECiphertextFourier::new(&module, basek, k_ct, rank);
|
||||
let mut pt_rgsw: ScalarZnx<Vec<u8>> = module.new_scalar_znx(1);
|
||||
let mut pt_want: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct);
|
||||
let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::new(&module, basek, k_ct);
|
||||
|
||||
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]);
|
||||
|
||||
// Random input plaintext
|
||||
pt_want
|
||||
.data
|
||||
.fill_uniform(basek, 0, pt_want.size(), &mut source_xa);
|
||||
|
||||
pt_want.to_mut().at_mut(0, 0)[1] = 1;
|
||||
|
||||
let k: usize = 1;
|
||||
|
||||
pt_rgsw.raw_mut()[k] = 1; // X^{k}
|
||||
|
||||
let mut scratch: ScratchOwned = ScratchOwned::new(
|
||||
GGSWCiphertext::encrypt_sk_scratch_space(&module, rank, ct_ggsw.size())
|
||||
| GLWECiphertext::decrypt_scratch_space(&module, ct.size())
|
||||
| GLWECiphertext::encrypt_sk_scratch_space(&module, ct.size())
|
||||
| GLWECiphertextFourier::external_product_inplace_scratch_space(&module, ct.size(), ct_ggsw.size(), rank),
|
||||
);
|
||||
|
||||
let mut sk: SecretKey<Vec<u8>> = SecretKey::new(&module, rank);
|
||||
sk.fill_ternary_prob(0.5, &mut source_xs);
|
||||
|
||||
let mut sk_dft: SecretKeyFourier<Vec<u8>, FFT64> = SecretKeyFourier::new(&module, rank);
|
||||
sk_dft.dft(&module, &sk);
|
||||
|
||||
ct_ggsw.encrypt_sk(
|
||||
&module,
|
||||
&pt_rgsw,
|
||||
&sk_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct.encrypt_sk(
|
||||
&module,
|
||||
&pt_want,
|
||||
&sk_dft,
|
||||
&mut source_xa,
|
||||
&mut source_xe,
|
||||
sigma,
|
||||
scratch.borrow(),
|
||||
);
|
||||
|
||||
ct.dft(&module, &mut ct_rlwe_dft);
|
||||
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());
|
||||
|
||||
module.vec_znx_rotate_inplace(k as i64, &mut pt_want, 0);
|
||||
|
||||
module.vec_znx_sub_ab_inplace(&mut pt_have, 0, &pt_want, 0);
|
||||
|
||||
let noise_have: f64 = pt_have.data.std(0, basek).log2();
|
||||
|
||||
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 noise_want: f64 = noise_ggsw_gglwe_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 as f64,
|
||||
k_ct,
|
||||
k_ggsw,
|
||||
);
|
||||
|
||||
assert!(
|
||||
(noise_have - noise_want).abs() <= 0.1,
|
||||
"{} {}",
|
||||
noise_have,
|
||||
noise_want
|
||||
);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user