1use poulpy_core::layouts::{
  2    GGSWCiphertext, GLWECiphertext, GLWESecret, Infos,
  3    prepared::{GGSWCiphertextPrepared, GLWESecretPrepared, PrepareAlloc},
  4};
  5use std::hint::black_box;
  6
  7use criterion::{BenchmarkId, Criterion, criterion_group, criterion_main};
  8
  9use poulpy_backend::cpu_spqlios::FFT64;
 10use poulpy_hal::{
 11    api::{ModuleNew, ScratchOwnedAlloc, ScratchOwnedBorrow},
 12    layouts::{Module, ScalarZnx, ScratchOwned},
 13    source::Source,
 14};
 15
 16fn bench_external_product_glwe_fft64(c: &mut Criterion) {
 17    let mut group = c.benchmark_group("external_product_glwe_fft64");
 18
 19    struct Params {
 20        log_n: usize,
 21        basek: usize,
 22        k_ct_in: usize,
 23        k_ct_out: usize,
 24        k_ggsw: usize,
 25        rank: usize,
 26    }
 27
 28    fn runner(p: Params) -> impl FnMut() {
 29        let module: Module<FFT64> = Module::<FFT64>::new(1 << p.log_n);
 30
 31        let n: usize = module.n();
 32        let basek: usize = p.basek;
 33        let k_ct_in: usize = p.k_ct_in;
 34        let k_ct_out: usize = p.k_ct_out;
 35        let k_ggsw: usize = p.k_ggsw;
 36        let rank: usize = p.rank;
 37        let digits: usize = 1;
 38
 39        let rows: usize = 1; //(p.k_ct_in.div_ceil(p.basek);
 40
 41        let mut ct_ggsw: GGSWCiphertext<Vec<u8>> = GGSWCiphertext::alloc(n, basek, k_ggsw, rows, digits, rank);
 42        let mut ct_glwe_in: GLWECiphertext<Vec<u8>> = GLWECiphertext::alloc(n, basek, k_ct_in, rank);
 43        let mut ct_glwe_out: GLWECiphertext<Vec<u8>> = GLWECiphertext::alloc(n, basek, k_ct_out, rank);
 44        let pt_rgsw: ScalarZnx<Vec<u8>> = ScalarZnx::alloc(n, 1);
 45
 46        let mut scratch: ScratchOwned<FFT64> = ScratchOwned::alloc(
 47            GGSWCiphertext::encrypt_sk_scratch_space(&module, n, basek, ct_ggsw.k(), rank)
 48                | GLWECiphertext::encrypt_sk_scratch_space(&module, n, basek, ct_glwe_in.k())
 49                | GLWECiphertext::external_product_scratch_space(
 50                    &module,
 51                    n,
 52                    basek,
 53                    ct_glwe_out.k(),
 54                    ct_glwe_in.k(),
 55                    ct_ggsw.k(),
 56                    digits,
 57                    rank,
 58                ),
 59        );
 60
 61        let mut source_xs = Source::new([0u8; 32]);
 62        let mut source_xe = Source::new([0u8; 32]);
 63        let mut source_xa = Source::new([0u8; 32]);
 64
 65        let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(n, rank);
 66        sk.fill_ternary_prob(0.5, &mut source_xs);
 67        let sk_dft: GLWESecretPrepared<Vec<u8>, FFT64> = sk.prepare_alloc(&module, scratch.borrow());
 68
 69        ct_ggsw.encrypt_sk(
 70            &module,
 71            &pt_rgsw,
 72            &sk_dft,
 73            &mut source_xa,
 74            &mut source_xe,
 75            scratch.borrow(),
 76        );
 77
 78        ct_glwe_in.encrypt_zero_sk(
 79            &module,
 80            &sk_dft,
 81            &mut source_xa,
 82            &mut source_xe,
 83            scratch.borrow(),
 84        );
 85
 86        let ggsw_prepared: GGSWCiphertextPrepared<Vec<u8>, FFT64> = ct_ggsw.prepare_alloc(&module, scratch.borrow());
 87
 88        move || {
 89            ct_glwe_out.external_product(&module, &ct_glwe_in, &ggsw_prepared, scratch.borrow());
 90            black_box(());
 91        }
 92    }
 93
 94    let params_set: Vec<Params> = vec![Params {
 95        log_n: 11,
 96        basek: 22,
 97        k_ct_in: 44,
 98        k_ct_out: 44,
 99        k_ggsw: 54,
100        rank: 1,
101    }];
102
103    for params in params_set {
104        let id = BenchmarkId::new("EXTERNAL_PRODUCT_GLWE_FFT64", "");
105        let mut runner = runner(params);
106        group.bench_with_input(id, &(), |b, _| b.iter(&mut runner));
107    }
108
109    group.finish();
110}
111
112fn bench_external_product_glwe_inplace_fft64(c: &mut Criterion) {
113    let mut group = c.benchmark_group("external_product_glwe_inplace_fft64");
114
115    struct Params {
116        log_n: usize,
117        basek: usize,
118        k_ct: usize,
119        k_ggsw: usize,
120        rank: usize,
121    }
122
123    fn runner(p: Params) -> impl FnMut() {
124        let module: Module<FFT64> = Module::<FFT64>::new(1 << p.log_n);
125
126        let n = module.n();
127        let basek: usize = p.basek;
128        let k_glwe: usize = p.k_ct;
129        let k_ggsw: usize = p.k_ggsw;
130        let rank: usize = p.rank;
131        let digits: usize = 1;
132
133        let rows: usize = p.k_ct.div_ceil(p.basek);
134
135        let mut ct_ggsw: GGSWCiphertext<Vec<u8>> = GGSWCiphertext::alloc(n, basek, k_ggsw, rows, digits, rank);
136        let mut ct_glwe: GLWECiphertext<Vec<u8>> = GLWECiphertext::alloc(n, basek, k_glwe, rank);
137        let pt_rgsw: ScalarZnx<Vec<u8>> = ScalarZnx::alloc(n, 1);
138
139        let mut scratch: ScratchOwned<FFT64> = ScratchOwned::alloc(
140            GGSWCiphertext::encrypt_sk_scratch_space(&module, n, basek, ct_ggsw.k(), rank)
141                | GLWECiphertext::encrypt_sk_scratch_space(&module, n, basek, ct_glwe.k())
142                | GLWECiphertext::external_product_inplace_scratch_space(
143                    &module,
144                    n,
145                    basek,
146                    ct_glwe.k(),
147                    ct_ggsw.k(),
148                    digits,
149                    rank,
150                ),
151        );
152
153        let mut source_xs = Source::new([0u8; 32]);
154        let mut source_xe = Source::new([0u8; 32]);
155        let mut source_xa = Source::new([0u8; 32]);
156
157        let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(n, rank);
158        sk.fill_ternary_prob(0.5, &mut source_xs);
159        let sk_dft: GLWESecretPrepared<Vec<u8>, FFT64> = sk.prepare_alloc(&module, scratch.borrow());
160
161        ct_ggsw.encrypt_sk(
162            &module,
163            &pt_rgsw,
164            &sk_dft,
165            &mut source_xa,
166            &mut source_xe,
167            scratch.borrow(),
168        );
169
170        ct_glwe.encrypt_zero_sk(
171            &module,
172            &sk_dft,
173            &mut source_xa,
174            &mut source_xe,
175            scratch.borrow(),
176        );
177
178        let ggsw_prepared: GGSWCiphertextPrepared<Vec<u8>, FFT64> = ct_ggsw.prepare_alloc(&module, scratch.borrow());
179
180        move || {
181            let scratch_borrow = scratch.borrow();
182            ct_glwe.external_product_inplace(&module, &ggsw_prepared, scratch_borrow);
183            black_box(());
184        }
185    }
186
187    let params_set: Vec<Params> = vec![Params {
188        log_n: 12,
189        basek: 18,
190        k_ct: 54,
191        k_ggsw: 54,
192        rank: 1,
193    }];
194
195    for params in params_set {
196        let id = BenchmarkId::new("EXTERNAL_PRODUCT_GLWE_INPLACE_FFT64", "");
197        let mut runner = runner(params);
198        group.bench_with_input(id, &(), |b, _| b.iter(&mut runner));
199    }
200
201    group.finish();
202}
203
204criterion_group!(
205    benches,
206    bench_external_product_glwe_fft64,
207    bench_external_product_glwe_inplace_fft64
208);
209criterion_main!(benches);