1use poulpy_hal::{
  2    api::{
  3        DFT, IDFTConsume, IDFTTmpA, ScratchOwnedAlloc, ScratchOwnedBorrow, SvpApply, SvpApplyInplace, SvpPPolAlloc,
  4        SvpPPolAllocBytes, SvpPrepare, VecZnxAddInplace, VecZnxAddNormal, VecZnxAddScalarInplace, VecZnxBigAddInplace,
  5        VecZnxBigAddSmallInplace, VecZnxBigAlloc, VecZnxBigAllocBytes, VecZnxBigNormalize, VecZnxCopy, VecZnxDftAlloc,
  6        VecZnxDftAllocBytes, VecZnxFillUniform, VecZnxNormalize, VecZnxNormalizeInplace, VecZnxNormalizeTmpBytes, VecZnxSub,
  7        VecZnxSubABInplace, VecZnxSubScalarInplace, VecZnxSwithcDegree,
  8    },
  9    layouts::{Backend, Module, ScratchOwned, VecZnxDft},
 10    oep::{
 11        ScratchAvailableImpl, ScratchOwnedAllocImpl, ScratchOwnedBorrowImpl, TakeScalarZnxImpl, TakeSvpPPolImpl,
 12        TakeVecZnxBigImpl, TakeVecZnxDftImpl, TakeVecZnxImpl, VecZnxBigAllocBytesImpl, VecZnxDftAllocBytesImpl,
 13    },
 14    source::Source,
 15};
 16
 17use crate::{
 18    encryption::SIGMA,
 19    layouts::{
 20        GGLWETensorKey, GLWEPlaintext, GLWESecret, Infos,
 21        compressed::{Decompress, GGLWETensorKeyCompressed},
 22        prepared::{GLWESecretPrepared, PrepareAlloc},
 23    },
 24};
 25
 26pub fn test_glwe_tensor_key_encrypt_sk<B>(module: &Module<B>, basek: usize, k: usize, rank: usize)
 27where
 28    Module<B>: VecZnxDftAllocBytes
 29        + VecZnxBigNormalize<B>
 30        + DFT<B>
 31        + SvpApplyInplace<B>
 32        + IDFTConsume<B>
 33        + VecZnxNormalizeTmpBytes
 34        + VecZnxFillUniform
 35        + VecZnxSubABInplace
 36        + VecZnxAddInplace
 37        + VecZnxNormalizeInplace<B>
 38        + VecZnxAddNormal
 39        + VecZnxNormalize<B>
 40        + VecZnxSub
 41        + SvpPrepare<B>
 42        + SvpPPolAllocBytes
 43        + SvpPPolAlloc<B>
 44        + VecZnxBigAddSmallInplace<B>
 45        + VecZnxBigAllocBytes
 46        + VecZnxBigAddInplace<B>
 47        + VecZnxCopy
 48        + VecZnxDftAlloc<B>
 49        + SvpApply<B>
 50        + VecZnxBigAlloc<B>
 51        + IDFTTmpA<B>
 52        + VecZnxAddScalarInplace
 53        + VecZnxSwithcDegree
 54        + VecZnxSubScalarInplace,
 55    B: Backend
 56        + TakeVecZnxDftImpl<B>
 57        + TakeVecZnxBigImpl<B>
 58        + ScratchOwnedAllocImpl<B>
 59        + ScratchOwnedBorrowImpl<B>
 60        + ScratchAvailableImpl<B>
 61        + TakeScalarZnxImpl<B>
 62        + TakeVecZnxImpl<B>
 63        + VecZnxDftAllocBytesImpl<B>
 64        + VecZnxBigAllocBytesImpl<B>
 65        + TakeSvpPPolImpl<B>,
 66{
 67    let n: usize = module.n();
 68    let rows: usize = k / basek;
 69
 70    let mut tensor_key: GGLWETensorKey<Vec<u8>> = GGLWETensorKey::alloc(n, basek, k, rows, 1, rank);
 71
 72    let mut source_xs: Source = Source::new([0u8; 32]);
 73    let mut source_xe: Source = Source::new([0u8; 32]);
 74    let mut source_xa: Source = Source::new([0u8; 32]);
 75
 76    let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(GGLWETensorKey::encrypt_sk_scratch_space(
 77        module,
 78        basek,
 79        tensor_key.k(),
 80        rank,
 81    ));
 82
 83    let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(n, rank);
 84    sk.fill_ternary_prob(0.5, &mut source_xs);
 85    let sk_prepared: GLWESecretPrepared<Vec<u8>, B> = sk.prepare_alloc(module, scratch.borrow());
 86
 87    tensor_key.encrypt_sk(
 88        module,
 89        &sk,
 90        &mut source_xa,
 91        &mut source_xe,
 92        scratch.borrow(),
 93    );
 94
 95    let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::alloc(n, basek, k);
 96
 97    let mut sk_ij_dft = module.vec_znx_dft_alloc(1, 1);
 98    let mut sk_ij_big = module.vec_znx_big_alloc(1, 1);
 99    let mut sk_ij: GLWESecret<Vec<u8>> = GLWESecret::alloc(n, 1);
100    let mut sk_dft: VecZnxDft<Vec<u8>, B> = module.vec_znx_dft_alloc(rank, 1);
101
102    (0..rank).for_each(|i| {
103        module.dft(1, 0, &mut sk_dft, i, &sk.data.as_vec_znx(), i);
104    });
105
106    (0..rank).for_each(|i| {
107        (0..rank).for_each(|j| {
108            module.svp_apply(&mut sk_ij_dft, 0, &sk_prepared.data, j, &sk_dft, i);
109            module.idft_tmp_a(&mut sk_ij_big, 0, &mut sk_ij_dft, 0);
110            module.vec_znx_big_normalize(
111                basek,
112                &mut sk_ij.data.as_vec_znx_mut(),
113                0,
114                &sk_ij_big,
115                0,
116                scratch.borrow(),
117            );
118            (0..tensor_key.rank_in()).for_each(|col_i| {
119                (0..tensor_key.rows()).for_each(|row_i| {
120                    tensor_key
121                        .at(i, j)
122                        .at(row_i, col_i)
123                        .decrypt(module, &mut pt, &sk_prepared, scratch.borrow());
124
125                    module.vec_znx_sub_scalar_inplace(&mut pt.data, 0, row_i, &sk_ij.data, col_i);
126
127                    let std_pt: f64 = pt.data.std(basek, 0) * (k as f64).exp2();
128                    assert!((SIGMA - std_pt).abs() <= 0.5, "{} {}", SIGMA, std_pt);
129                });
130            });
131        })
132    })
133}
134
135pub fn test_glwe_tensor_key_compressed_encrypt_sk<B>(module: &Module<B>, basek: usize, k: usize, rank: usize)
136where
137    Module<B>: VecZnxDftAllocBytes
138        + VecZnxBigNormalize<B>
139        + DFT<B>
140        + SvpApplyInplace<B>
141        + IDFTConsume<B>
142        + VecZnxNormalizeTmpBytes
143        + VecZnxFillUniform
144        + VecZnxSubABInplace
145        + VecZnxAddInplace
146        + VecZnxNormalizeInplace<B>
147        + VecZnxAddNormal
148        + VecZnxNormalize<B>
149        + VecZnxSub
150        + SvpPrepare<B>
151        + SvpPPolAllocBytes
152        + SvpPPolAlloc<B>
153        + VecZnxBigAddSmallInplace<B>
154        + VecZnxBigAllocBytes
155        + VecZnxBigAddInplace<B>
156        + VecZnxCopy
157        + VecZnxDftAlloc<B>
158        + SvpApply<B>
159        + VecZnxBigAlloc<B>
160        + IDFTTmpA<B>
161        + VecZnxAddScalarInplace
162        + VecZnxSwithcDegree
163        + VecZnxSubScalarInplace,
164    B: Backend
165        + TakeVecZnxDftImpl<B>
166        + TakeVecZnxBigImpl<B>
167        + ScratchOwnedAllocImpl<B>
168        + ScratchOwnedBorrowImpl<B>
169        + ScratchAvailableImpl<B>
170        + TakeScalarZnxImpl<B>
171        + TakeVecZnxImpl<B>
172        + VecZnxDftAllocBytesImpl<B>
173        + VecZnxBigAllocBytesImpl<B>
174        + TakeSvpPPolImpl<B>,
175{
176    let n: usize = module.n();
177    let rows: usize = k / basek;
178
179    let mut tensor_key_compressed: GGLWETensorKeyCompressed<Vec<u8>> =
180        GGLWETensorKeyCompressed::alloc(n, basek, k, rows, 1, rank);
181
182    let mut source_xs: Source = Source::new([0u8; 32]);
183    let mut source_xe: Source = Source::new([0u8; 32]);
184
185    let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(GGLWETensorKeyCompressed::encrypt_sk_scratch_space(
186        module,
187        basek,
188        tensor_key_compressed.k(),
189        rank,
190    ));
191
192    let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(n, rank);
193    sk.fill_ternary_prob(0.5, &mut source_xs);
194    let sk_prepared: GLWESecretPrepared<Vec<u8>, B> = sk.prepare_alloc(module, scratch.borrow());
195
196    let seed_xa: [u8; 32] = [1u8; 32];
197
198    tensor_key_compressed.encrypt_sk(module, &sk, seed_xa, &mut source_xe, scratch.borrow());
199
200    let mut tensor_key: GGLWETensorKey<Vec<u8>> = GGLWETensorKey::alloc(n, basek, k, rows, 1, rank);
201    tensor_key.decompress(module, &tensor_key_compressed);
202
203    let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::alloc(n, basek, k);
204
205    let mut sk_ij_dft = module.vec_znx_dft_alloc(1, 1);
206    let mut sk_ij_big = module.vec_znx_big_alloc(1, 1);
207    let mut sk_ij: GLWESecret<Vec<u8>> = GLWESecret::alloc(n, 1);
208    let mut sk_dft: VecZnxDft<Vec<u8>, B> = module.vec_znx_dft_alloc(rank, 1);
209
210    (0..rank).for_each(|i| {
211        module.dft(1, 0, &mut sk_dft, i, &sk.data.as_vec_znx(), i);
212    });
213
214    (0..rank).for_each(|i| {
215        (0..rank).for_each(|j| {
216            module.svp_apply(&mut sk_ij_dft, 0, &sk_prepared.data, j, &sk_dft, i);
217            module.idft_tmp_a(&mut sk_ij_big, 0, &mut sk_ij_dft, 0);
218            module.vec_znx_big_normalize(
219                basek,
220                &mut sk_ij.data.as_vec_znx_mut(),
221                0,
222                &sk_ij_big,
223                0,
224                scratch.borrow(),
225            );
226            (0..tensor_key.rank_in()).for_each(|col_i| {
227                (0..tensor_key.rows()).for_each(|row_i| {
228                    tensor_key
229                        .at(i, j)
230                        .at(row_i, col_i)
231                        .decrypt(module, &mut pt, &sk_prepared, scratch.borrow());
232
233                    module.vec_znx_sub_scalar_inplace(&mut pt.data, 0, row_i, &sk_ij.data, col_i);
234
235                    let std_pt: f64 = pt.data.std(basek, 0) * (k as f64).exp2();
236                    assert!((SIGMA - std_pt).abs() <= 0.5, "{} {}", SIGMA, std_pt);
237                });
238            });
239        })
240    })
241}