poulpy/core/src/ggsw_ciphertext.rs
core/src/ggsw_ciphertext.rsRaw
1use base2k::{
2 Backend, FFT64, MatZnxDft, MatZnxDftAlloc, MatZnxDftOps, MatZnxDftScratch, MatZnxDftToMut, MatZnxDftToRef, Module, ScalarZnx,
3 ScalarZnxDft, ScalarZnxDftToRef, ScalarZnxToRef, Scratch, VecZnxAlloc, VecZnxBigAlloc, VecZnxBigOps, VecZnxBigScratch,
4 VecZnxDftAlloc, VecZnxDftOps, VecZnxDftToMut, VecZnxDftToRef, VecZnxOps, ZnxInfos, ZnxZero,
5};
6use sampling::source::Source;
7
8use crate::{
9 automorphism::AutomorphismKey,
10 elem::{GetRow, Infos, SetRow},
11 glwe_ciphertext::GLWECiphertext,
12 glwe_ciphertext_fourier::GLWECiphertextFourier,
13 glwe_plaintext::GLWEPlaintext,
14 keys::SecretKeyFourier,
15 keyswitch_key::GLWESwitchingKey,
16 tensor_key::TensorKey,
17 utils::derive_size,
18};
19
20pub struct GGSWCiphertext<C, B: Backend> {
21 pub data: MatZnxDft<C, B>,
22 pub basek: usize,
23 pub k: usize,
24}
25
26impl<B: Backend> GGSWCiphertext<Vec<u8>, B> {
27 pub fn new(module: &Module<B>, basek: usize, k: usize, rows: usize, rank: usize) -> Self {
28 Self {
29 data: module.new_mat_znx_dft(rows, rank + 1, rank + 1, derive_size(basek, k)),
30 basek: basek,
31 k: k,
32 }
33 }
34}
35
36impl<T, B: Backend> Infos for GGSWCiphertext<T, B> {
37 type Inner = MatZnxDft<T, B>;
38
39 fn inner(&self) -> &Self::Inner {
40 &self.data
41 }
42
43 fn basek(&self) -> usize {
44 self.basek
45 }
46
47 fn k(&self) -> usize {
48 self.k
49 }
50}
51
52impl<T, B: Backend> GGSWCiphertext<T, B> {
53 pub fn rank(&self) -> usize {
54 self.data.cols_out() - 1
55 }
56}
57
58impl<C, B: Backend> MatZnxDftToMut<B> for GGSWCiphertext<C, B>
59where
60 MatZnxDft<C, B>: MatZnxDftToMut<B>,
61{
62 fn to_mut(&mut self) -> MatZnxDft<&mut [u8], B> {
63 self.data.to_mut()
64 }
65}
66
67impl<C, B: Backend> MatZnxDftToRef<B> for GGSWCiphertext<C, B>
68where
69 MatZnxDft<C, B>: MatZnxDftToRef<B>,
70{
71 fn to_ref(&self) -> MatZnxDft<&[u8], B> {
72 self.data.to_ref()
73 }
74}
75
76impl GGSWCiphertext<Vec<u8>, FFT64> {
77 pub fn encrypt_sk_scratch_space(module: &Module<FFT64>, rank: usize, size: usize) -> usize {
78 GLWECiphertext::encrypt_sk_scratch_space(module, size)
79 + module.bytes_of_vec_znx(rank + 1, size)
80 + module.bytes_of_vec_znx(1, size)
81 + module.bytes_of_vec_znx_dft(rank + 1, size)
82 }
83
84 pub fn keyswitch_scratch_space(
85 module: &Module<FFT64>,
86 out_size: usize,
87 in_size: usize,
88 ksk_size: usize,
89 tsk_size: usize,
90 rank: usize,
91 ) -> usize {
92 let tmp_dft_out: usize = module.bytes_of_vec_znx_dft(rank + 1, out_size);
93 let vmp_ksk: usize = module.bytes_of_vec_znx_dft(rank + 1, in_size)
94 + GLWECiphertextFourier::keyswitch_scratch_space(module, out_size, rank, in_size, rank, ksk_size);
95 let tmp_c0: usize = module.bytes_of_vec_znx_big(1, out_size);
96 let tmp_dft_i: usize = module.bytes_of_vec_znx_dft(rank + 1, tsk_size);
97 let vmp_tsk: usize = module.bytes_of_vec_znx_dft(1, out_size)
98 + module.vmp_apply_tmp_bytes(out_size, out_size, rank + 1, rank + 1, rank + 1, tsk_size);
99 let tmp_idft: usize = module.bytes_of_vec_znx_big(1, tsk_size);
100 let tmp_znx_small: usize = module.bytes_of_vec_znx(1, out_size);
101 let norm: usize = module.vec_znx_big_normalize_tmp_bytes();
102 tmp_dft_out + (vmp_ksk | (tmp_c0 + tmp_dft_i + (vmp_tsk | (tmp_idft + tmp_znx_small + norm))))
103 }
104
105 pub fn automorphism_scratch_space(
106 module: &Module<FFT64>,
107 out_size: usize,
108 in_size: usize,
109 auto_key_size: usize,
110 rank: usize,
111 ) -> usize {
112 let tmp_dft: usize = module.bytes_of_vec_znx_dft(rank + 1, auto_key_size);
113 let tmp_idft: usize = module.bytes_of_vec_znx(rank + 1, out_size);
114 let vmp: usize =
115 GLWECiphertext::keyswitch_from_fourier_scratch_space(module, out_size, rank, in_size, rank, auto_key_size);
116 tmp_dft + tmp_idft + vmp
117 }
118
119 pub fn external_product_scratch_space(
120 module: &Module<FFT64>,
121 out_size: usize,
122 in_size: usize,
123 ggsw_size: usize,
124 rank: usize,
125 ) -> usize {
126 let tmp_in: usize = module.bytes_of_vec_znx_dft(rank + 1, in_size);
127 let tmp_out: usize = module.bytes_of_vec_znx_dft(rank + 1, out_size);
128 let ggsw: usize = GLWECiphertextFourier::external_product_scratch_space(module, out_size, in_size, ggsw_size, rank);
129 tmp_in + tmp_out + ggsw
130 }
131
132 pub fn external_product_inplace_scratch_space(
133 module: &Module<FFT64>,
134 out_size: usize,
135 ggsw_size: usize,
136 rank: usize,
137 ) -> usize {
138 let tmp: usize = module.bytes_of_vec_znx_dft(rank + 1, out_size);
139 let ggsw: usize = GLWECiphertextFourier::external_product_inplace_scratch_space(module, out_size, ggsw_size, rank);
140 tmp + ggsw
141 }
142}
143
144impl<DataSelf> GGSWCiphertext<DataSelf, FFT64>
145where
146 MatZnxDft<DataSelf, FFT64>: MatZnxDftToMut<FFT64> + MatZnxDftToRef<FFT64>,
147{
148 pub fn encrypt_sk<DataPt, DataSk>(
149 &mut self,
150 module: &Module<FFT64>,
151 pt: &ScalarZnx<DataPt>,
152 sk_dft: &SecretKeyFourier<DataSk, FFT64>,
153 source_xa: &mut Source,
154 source_xe: &mut Source,
155 sigma: f64,
156 scratch: &mut Scratch,
157 ) where
158 ScalarZnx<DataPt>: ScalarZnxToRef,
159 ScalarZnxDft<DataSk, FFT64>: ScalarZnxDftToRef<FFT64>,
160 {
161 #[cfg(debug_assertions)]
162 {
163 assert_eq!(self.rank(), sk_dft.rank());
164 assert_eq!(self.n(), module.n());
165 assert_eq!(pt.n(), module.n());
166 assert_eq!(sk_dft.n(), module.n());
167 }
168
169 let size: usize = self.size();
170 let basek: usize = self.basek();
171 let k: usize = self.k();
172 let cols: usize = self.rank() + 1;
173
174 let (tmp_znx_pt, scratch_1) = scratch.tmp_vec_znx(module, 1, size);
175 let (tmp_znx_ct, scrach_2) = scratch_1.tmp_vec_znx(module, cols, size);
176
177 let mut vec_znx_pt: GLWEPlaintext<&mut [u8]> = GLWEPlaintext {
178 data: tmp_znx_pt,
179 basek: basek,
180 k: k,
181 };
182
183 let mut vec_znx_ct: GLWECiphertext<&mut [u8]> = GLWECiphertext {
184 data: tmp_znx_ct,
185 basek: basek,
186 k,
187 };
188
189 (0..self.rows()).for_each(|row_j| {
190 vec_znx_pt.data.zero();
191
192 // Adds the scalar_znx_pt to the i-th limb of the vec_znx_pt
193 module.vec_znx_add_scalar_inplace(&mut vec_znx_pt, 0, row_j, pt, 0);
194 module.vec_znx_normalize_inplace(basek, &mut vec_znx_pt, 0, scrach_2);
195
196 (0..cols).for_each(|col_i| {
197 // rlwe encrypt of vec_znx_pt into vec_znx_ct
198
199 vec_znx_ct.encrypt_sk_private(
200 module,
201 Some((&vec_znx_pt, col_i)),
202 sk_dft,
203 source_xa,
204 source_xe,
205 sigma,
206 scrach_2,
207 );
208
209 // Switch vec_znx_ct into DFT domain
210 {
211 let (mut vec_znx_dft_ct, _) = scrach_2.tmp_vec_znx_dft(module, cols, size);
212
213 (0..cols).for_each(|i| {
214 module.vec_znx_dft(&mut vec_znx_dft_ct, i, &vec_znx_ct, i);
215 });
216
217 module.vmp_prepare_row(self, row_j, col_i, &vec_znx_dft_ct);
218 }
219 });
220 });
221 }
222
223 pub fn keyswitch<DataLhs, DataRhs0, DataRhs1>(
224 &mut self,
225 module: &Module<FFT64>,
226 lhs: &GGSWCiphertext<DataLhs, FFT64>,
227 ksk: &GLWESwitchingKey<DataRhs0, FFT64>,
228 tsk: &TensorKey<DataRhs1, FFT64>,
229 scratch: &mut Scratch,
230 ) where
231 MatZnxDft<DataLhs, FFT64>: MatZnxDftToRef<FFT64>,
232 MatZnxDft<DataRhs0, FFT64>: MatZnxDftToRef<FFT64>,
233 MatZnxDft<DataRhs1, FFT64>: MatZnxDftToRef<FFT64>,
234 {
235 #[cfg(debug_assertions)]
236 {
237 assert_eq!(
238 self.rank(),
239 lhs.rank(),
240 "ggsw_out rank: {} != ggsw_in rank: {}",
241 self.rank(),
242 lhs.rank()
243 );
244 assert_eq!(
245 lhs.rank(),
246 ksk.rank(),
247 "ggsw_in rank: {} != ksk rank: {}",
248 lhs.rank(),
249 ksk.rank()
250 );
251 assert_eq!(
252 lhs.rank(),
253 tsk.rank(),
254 "ggsw_in rank: {} != tsk rank: {}",
255 lhs.rank(),
256 tsk.rank()
257 );
258 }
259
260 let cols: usize = self.rank() + 1;
261
262 // Example for rank 3:
263 //
264 // Note: M is a vector (m, Bm, B^2m, B^3m, ...), so each column is
265 // actually composed of that many rows.
266 //
267 // # Input
268 //
269 // col 0: (-(a0s0 + a1s1 + a2s2) + M, a0 , a1 , a2 )
270 // col 1: (-(b0s0 + b1s1 + b2s2) , b0 + M, b1 , b2 )
271 // col 2: (-(c0s0 + c1s1 + c2s2) , c0 , c1 + M, c2 )
272 // col 3: (-(d0s0 + d1s1 + d2s2) , d0 , d1 , d2 + M)
273 //
274 // # Output
275 //
276 // col 0: (-(a0s0' + a1s1' + a2s2') + M, a0 , a1 , a2 )
277 // col 1: (-(b0s0' + b1s1' + b2s2') , b0 + M, b1 , b2 )
278 // col 2: (-(c0s0' + c1s1' + c2s2') , c0 , c1 + M, c2 )
279 // col 3: (-(d0s0' + d1s1' + d2s2') , d0 , d1 , d2 + M)
280 (0..self.rows()).for_each(|row_j| {
281 let (tmp_dft_out_data, scratch1) = scratch.tmp_vec_znx_dft(module, self.rank() + 1, self.size());
282
283 let mut tmp_dft_out: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
284 data: tmp_dft_out_data,
285 basek: lhs.basek(),
286 k: lhs.k(),
287 };
288
289 {
290 let (tmp_dft_in_data, scratch2) = scratch1.tmp_vec_znx_dft(module, lhs.rank() + 1, lhs.size());
291
292 let mut tmp_dft_in: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
293 data: tmp_dft_in_data,
294 basek: lhs.basek(),
295 k: lhs.k(),
296 };
297
298 // 1) Applies key-switching to GGSW[i][0]: (-(a0s0 + a1s1 + a2s2) + M[i], a0, a1, a2)
299 lhs.get_row(module, row_j, 0, &mut tmp_dft_in);
300 // (-(a0s0 + a1s1 + a2s2) + M[i], a0, a1, a2) -> (-(a0s0' + a1s1' + a2s2') + M[i], a0, a1, a2)
301 tmp_dft_out.keyswitch(module, &tmp_dft_in, ksk, scratch2);
302 self.set_row(module, row_j, 0, &tmp_dft_out);
303 }
304
305 // 2) Isolates IDFT(-(a0s0' + a1s1' + a2s2') + M[i])
306 let (mut tmp_c0_data, scratch2) = scratch1.tmp_vec_znx_big(module, 1, self.size());
307 module.vec_znx_idft_tmp_a(&mut tmp_c0_data, 0, &mut tmp_dft_out, 0);
308
309 // 3) Expands the i-th row of the other columns using the tensor key
310 // col 1: (-(b0s0' + b1s1' + b2s2') , b0 + M[i], b1 , b2 ) = KS_{s0's0', s0's1', s0's2'}(a0) + (0, -(a0s0' + a1s1' + a2s2') + M[i], 0, 0)
311 // col 2: (-(c0s0' + c1s1' + c2s2') , c0 , c1 + M[i], c2 ) = KS_{s1's0', s1's1', s1's2'}(a1) + (0, 0, -(a0s0' + a1s1' + a2s2') + M[i], 0)
312 // col 3: (-(d0s0' + d1s1' + d2s2') , d0 , d1 , d2 + M[i]) = KS_{s2's0', s2's1', s2's2'}(a2) + (0, 0, 0, -(a0s0' + a1s1' + a2s2') + M[i])
313 (1..cols).for_each(|col_i| {
314 let (tmp_dft_i_data, scratch3) = scratch2.tmp_vec_znx_dft(module, cols, tsk.size());
315 let mut tmp_dft_i: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
316 data: tmp_dft_i_data,
317 basek: lhs.basek(),
318 k: lhs.k(),
319 };
320
321 // 5) Performs a key-switch for each combination of s[i]*s[j], i.e. for a0, a1, a2
322 //
323 // # Example for col=1
324 //
325 // a0 * (-(f0s0 + f1s1 + f1s2) + s0^2, f0, f1, f2) = (-(a0f0s0 + a0f1s1 + a0f1s2) + a0s0^2, a0f0, a0f1, a0f2)
326 // +
327 // a1 * (-(g0s0 + g1s1 + g1s2) + s0s1, g0, g1, g2) = (-(a1g0s0 + a1g1s1 + a1g1s2) + a1s0s1, a1g0, a1g1, a1g2)
328 // +
329 // a2 * (-(h0s0 + h1s1 + h1s2) + s0s2, h0, h1, h2) = (-(a2h0s0 + a2h1s1 + a2h1s2) + a2s0s2, a2h0, a2h1, a2h2)
330 // =
331 // (-(x0s0' + x1s1' + x2s2') + s0'(a0s0' + a1s1' + a2s2'), x0, x1, x2)
332 (1..cols).for_each(|col_j| {
333 // Extracts a[i] and multipies with Enc(s'[i]s'[j])
334 let (mut tmp_dft_col_data, scratch4) = scratch3.tmp_vec_znx_dft(module, 1, self.size());
335 tmp_dft_col_data.extract_column(0, &tmp_dft_out.data, col_j);
336
337 if col_j == 1 {
338 module.vmp_apply(
339 &mut tmp_dft_i,
340 &tmp_dft_col_data,
341 tsk.at(col_i - 1, col_j - 1), // Selects Enc(s'[i]s'[j])
342 scratch4,
343 );
344 } else {
345 module.vmp_apply_add(
346 &mut tmp_dft_i,
347 &tmp_dft_col_data,
348 tsk.at(col_i - 1, col_j - 1), // Selects Enc(s'[i]s'[j])
349 scratch4,
350 );
351 }
352 });
353
354 // Adds -(sum a[i] * s[i]) + m) on the i-th column of tmp_idft_i
355 //
356 // (-(x0s0' + x1s1' + x2s2') + a0s0's0' + a1s0's1' + a2s0's2', x0, x1, x2)
357 // +
358 // (0, -(a0s0' + a1s1' + a2s2') + M[i], 0, 0)
359 // =
360 // (-(x0s0' + x1s1' + x2s2') + s0'(a0s0' + a1s1' + a2s2'), x0 -(a0s0' + a1s1' + a2s2') + M[i], x1, x2)
361 // =
362 // (-(x0s0' + x1s1' + x2s2'), x0 + M[i], x1, x2)
363 {
364 let (mut tmp_idft, scratch3) = scratch3.tmp_vec_znx_big(module, 1, tsk.size());
365 let (mut tmp_znx_small, scratch5) = scratch3.tmp_vec_znx(module, 1, self.size());
366 (0..cols).for_each(|i| {
367 module.vec_znx_idft_tmp_a(&mut tmp_idft, 0, &mut tmp_dft_i, i);
368 if i == col_i {
369 module.vec_znx_big_add_inplace(&mut tmp_idft, 0, &tmp_c0_data, 0);
370 }
371 module.vec_znx_big_normalize(self.basek(), &mut tmp_znx_small, 0, &tmp_idft, 0, scratch5);
372 module.vec_znx_dft(&mut tmp_dft_i, i, &tmp_znx_small, 0);
373 });
374 }
375
376 // Stores (-(x0s0' + x1s1' + x2s2'), x0 + M[i], x1, x2)
377 self.set_row(module, row_j, col_i, &tmp_dft_i);
378 })
379 })
380 }
381
382 pub fn automorphism<DataLhs, DataRhs>(
383 &mut self,
384 module: &Module<FFT64>,
385 lhs: &GGSWCiphertext<DataLhs, FFT64>,
386 rhs: &AutomorphismKey<DataRhs, FFT64>,
387 scratch: &mut Scratch,
388 ) where
389 MatZnxDft<DataLhs, FFT64>: MatZnxDftToRef<FFT64>,
390 MatZnxDft<DataRhs, FFT64>: MatZnxDftToRef<FFT64>,
391 {
392 #[cfg(debug_assertions)]
393 {
394 assert_eq!(
395 self.rank(),
396 lhs.rank(),
397 "ggsw_out rank: {} != ggsw_in rank: {}",
398 self.rank(),
399 lhs.rank()
400 );
401 assert_eq!(
402 self.rank(),
403 rhs.rank(),
404 "ggsw_in rank: {} != auto_key rank: {}",
405 self.rank(),
406 rhs.rank()
407 );
408 };
409 let cols: usize = self.rank() + 1;
410
411 let (tmp_dft_data, scratch1) = scratch.tmp_vec_znx_dft(module, cols, rhs.size()); //TODO optimize
412
413 let mut tmp_dft: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
414 data: tmp_dft_data,
415 basek: lhs.basek(),
416 k: lhs.k(),
417 };
418
419 let (tmp_idft_data, scratch2) = scratch1.tmp_vec_znx(module, cols, self.size());
420
421 let mut tmp_idft: GLWECiphertext<&mut [u8]> = GLWECiphertext::<&mut [u8]> {
422 data: tmp_idft_data,
423 basek: self.basek(),
424 k: self.k(),
425 };
426
427 (0..cols).for_each(|col_i| {
428 (0..self.rows()).for_each(|row_j| {
429 lhs.get_row(module, row_j, col_i, &mut tmp_dft);
430 tmp_idft.keyswitch_from_fourier(module, &tmp_dft, &rhs.key, scratch2);
431 (0..cols).for_each(|i| {
432 module.vec_znx_automorphism_inplace(rhs.p(), &mut tmp_idft, i);
433 });
434 self.set_row(module, row_j, col_i, &tmp_dft);
435 });
436 });
437
438 tmp_dft.data.zero();
439
440 (self.rows().min(lhs.rows())..self.rows()).for_each(|row_i| {
441 (0..self.rank() + 1).for_each(|col_j| {
442 self.set_row(module, row_i, col_j, &tmp_dft);
443 });
444 });
445 }
446
447 pub fn external_product<DataLhs, DataRhs>(
448 &mut self,
449 module: &Module<FFT64>,
450 lhs: &GGSWCiphertext<DataLhs, FFT64>,
451 rhs: &GGSWCiphertext<DataRhs, FFT64>,
452 scratch: &mut Scratch,
453 ) where
454 MatZnxDft<DataLhs, FFT64>: MatZnxDftToRef<FFT64>,
455 MatZnxDft<DataRhs, FFT64>: MatZnxDftToRef<FFT64>,
456 {
457 #[cfg(debug_assertions)]
458 {
459 assert_eq!(
460 self.rank(),
461 lhs.rank(),
462 "ggsw_out rank: {} != ggsw_in rank: {}",
463 self.rank(),
464 lhs.rank()
465 );
466 assert_eq!(
467 self.rank(),
468 rhs.rank(),
469 "ggsw_in rank: {} != ggsw_apply rank: {}",
470 self.rank(),
471 rhs.rank()
472 );
473 }
474
475 let (tmp_in_data, scratch1) = scratch.tmp_vec_znx_dft(module, lhs.rank() + 1, lhs.size());
476
477 let mut tmp_in: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
478 data: tmp_in_data,
479 basek: lhs.basek(),
480 k: lhs.k(),
481 };
482
483 let (tmp_out_data, scratch2) = scratch1.tmp_vec_znx_dft(module, self.rank() + 1, self.size());
484
485 let mut tmp_out: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
486 data: tmp_out_data,
487 basek: self.basek(),
488 k: self.k(),
489 };
490
491 (0..self.rank() + 1).for_each(|col_i| {
492 (0..self.rows()).for_each(|row_j| {
493 lhs.get_row(module, row_j, col_i, &mut tmp_in);
494 tmp_out.external_product(module, &tmp_in, rhs, scratch2);
495 self.set_row(module, row_j, col_i, &tmp_out);
496 });
497 });
498
499 tmp_out.data.zero();
500
501 (self.rows().min(lhs.rows())..self.rows()).for_each(|row_i| {
502 (0..self.rank() + 1).for_each(|col_j| {
503 self.set_row(module, row_i, col_j, &tmp_out);
504 });
505 });
506 }
507
508 pub fn external_product_inplace<DataRhs>(
509 &mut self,
510 module: &Module<FFT64>,
511 rhs: &GGSWCiphertext<DataRhs, FFT64>,
512 scratch: &mut Scratch,
513 ) where
514 MatZnxDft<DataRhs, FFT64>: MatZnxDftToRef<FFT64>,
515 {
516 #[cfg(debug_assertions)]
517 {
518 assert_eq!(
519 self.rank(),
520 rhs.rank(),
521 "ggsw_out rank: {} != ggsw_apply: {}",
522 self.rank(),
523 rhs.rank()
524 );
525 }
526
527 let (tmp_data, scratch1) = scratch.tmp_vec_znx_dft(module, self.rank() + 1, self.size());
528
529 let mut tmp: GLWECiphertextFourier<&mut [u8], FFT64> = GLWECiphertextFourier::<&mut [u8], FFT64> {
530 data: tmp_data,
531 basek: self.basek(),
532 k: self.k(),
533 };
534
535 (0..self.rank() + 1).for_each(|col_i| {
536 (0..self.rows()).for_each(|row_j| {
537 self.get_row(module, row_j, col_i, &mut tmp);
538 tmp.external_product_inplace(module, rhs, scratch1);
539 self.set_row(module, row_j, col_i, &tmp);
540 });
541 });
542 }
543}
544
545impl<DataSelf> GetRow<FFT64> for GGSWCiphertext<DataSelf, FFT64>
546where
547 MatZnxDft<DataSelf, FFT64>: MatZnxDftToRef<FFT64>,
548{
549 fn get_row<R>(&self, module: &Module<FFT64>, row_i: usize, col_j: usize, res: &mut R)
550 where
551 R: VecZnxDftToMut<FFT64>,
552 {
553 module.vmp_extract_row(res, self, row_i, col_j);
554 }
555}
556
557impl<DataSelf> SetRow<FFT64> for GGSWCiphertext<DataSelf, FFT64>
558where
559 MatZnxDft<DataSelf, FFT64>: MatZnxDftToMut<FFT64>,
560{
561 fn set_row<R>(&mut self, module: &Module<FFT64>, row_i: usize, col_j: usize, a: &R)
562 where
563 R: VecZnxDftToRef<FFT64>,
564 {
565 module.vmp_prepare_row(self, row_i, col_j, a);
566 }
567}