poulpy_core/keyswitching/
gglwe.rs

1use poulpy_hal::layouts::{Backend, DataMut, Module, Scratch};
2
3use crate::{
4    ScratchTakeCore,
5    keyswitching::GLWEKeyswitch,
6    layouts::{GGLWE, GGLWEInfos, GGLWEPreparedToRef, GGLWEToMut, GGLWEToRef, GLWEAutomorphismKey, GLWESwitchingKey},
7};
8
9impl GLWEAutomorphismKey<Vec<u8>> {
10    pub fn keyswitch_tmp_bytes<R, A, K, M, BE: Backend>(module: &M, res_infos: &R, a_infos: &A, key_infos: &K) -> usize
11    where
12        R: GGLWEInfos,
13        A: GGLWEInfos,
14        K: GGLWEInfos,
15        M: GGLWEKeyswitch<BE>,
16    {
17        module.glwe_keyswitch_tmp_bytes(res_infos, a_infos, key_infos)
18    }
19}
20
21impl<DataSelf: DataMut> GLWEAutomorphismKey<DataSelf> {
22    pub fn keyswitch<A, B, M, BE: Backend>(&mut self, module: &M, a: &A, b: &B, scratch: &mut Scratch<BE>)
23    where
24        A: GGLWEToRef + GGLWEToRef,
25        B: GGLWEPreparedToRef<BE> + GGLWEInfos,
26        Scratch<BE>: ScratchTakeCore<BE>,
27        M: GGLWEKeyswitch<BE>,
28    {
29        module.gglwe_keyswitch(self, a, b, scratch);
30    }
31
32    pub fn keyswitch_inplace<A, M, BE: Backend>(&mut self, module: &M, a: &A, scratch: &mut Scratch<BE>)
33    where
34        A: GGLWEPreparedToRef<BE> + GGLWEInfos,
35        Scratch<BE>: ScratchTakeCore<BE>,
36        M: GGLWEKeyswitch<BE>,
37    {
38        module.gglwe_keyswitch_inplace(self, a, scratch);
39    }
40}
41
42impl GLWESwitchingKey<Vec<u8>> {
43    pub fn keyswitch_tmp_bytes<R, A, K, M, BE: Backend>(module: &M, res_infos: &R, a_infos: &A, key_infos: &K) -> usize
44    where
45        R: GGLWEInfos,
46        A: GGLWEInfos,
47        K: GGLWEInfos,
48        M: GGLWEKeyswitch<BE>,
49    {
50        module.glwe_keyswitch_tmp_bytes(res_infos, a_infos, key_infos)
51    }
52}
53
54impl<DataSelf: DataMut> GLWESwitchingKey<DataSelf> {
55    pub fn keyswitch<A, B, M, BE: Backend>(&mut self, module: &M, a: &A, b: &B, scratch: &mut Scratch<BE>)
56    where
57        A: GGLWEToRef,
58        B: GGLWEPreparedToRef<BE> + GGLWEInfos,
59        Scratch<BE>: ScratchTakeCore<BE>,
60        M: GGLWEKeyswitch<BE>,
61    {
62        module.gglwe_keyswitch(self, a, b, scratch);
63    }
64
65    pub fn keyswitch_inplace<A, M, BE: Backend>(&mut self, module: &M, a: &A, scratch: &mut Scratch<BE>)
66    where
67        A: GGLWEPreparedToRef<BE> + GGLWEInfos,
68        Scratch<BE>: ScratchTakeCore<BE>,
69        M: GGLWEKeyswitch<BE>,
70    {
71        module.gglwe_keyswitch_inplace(self, a, scratch);
72    }
73}
74
75impl GGLWE<Vec<u8>> {
76    pub fn keyswitch_tmp_bytes<R, A, K, M, BE: Backend>(module: &M, res_infos: &R, a_infos: &A, key_infos: &K) -> usize
77    where
78        R: GGLWEInfos,
79        A: GGLWEInfos,
80        K: GGLWEInfos,
81        M: GGLWEKeyswitch<BE>,
82    {
83        module.glwe_keyswitch_tmp_bytes(res_infos, a_infos, key_infos)
84    }
85}
86
87impl<DataSelf: DataMut> GGLWE<DataSelf> {
88    pub fn keyswitch<A, B, M, BE: Backend>(&mut self, module: &M, a: &A, b: &B, scratch: &mut Scratch<BE>)
89    where
90        A: GGLWEToRef,
91        B: GGLWEPreparedToRef<BE> + GGLWEInfos,
92        Scratch<BE>: ScratchTakeCore<BE>,
93        M: GGLWEKeyswitch<BE>,
94    {
95        module.gglwe_keyswitch(self, a, b, scratch);
96    }
97
98    pub fn keyswitch_inplace<A, M, BE: Backend>(&mut self, module: &M, a: &A, scratch: &mut Scratch<BE>)
99    where
100        A: GGLWEPreparedToRef<BE> + GGLWEInfos,
101        Scratch<BE>: ScratchTakeCore<BE>,
102        M: GGLWEKeyswitch<BE>,
103    {
104        module.gglwe_keyswitch_inplace(self, a, scratch);
105    }
106}
107
108impl<BE: Backend> GGLWEKeyswitch<BE> for Module<BE> where Self: GLWEKeyswitch<BE> {}
109
110pub trait GGLWEKeyswitch<BE: Backend>
111where
112    Self: GLWEKeyswitch<BE>,
113{
114    fn gglwe_keyswitch_tmp_bytes<R, A, K>(&self, res_infos: &R, a_infos: &A, key_infos: &K) -> usize
115    where
116        R: GGLWEInfos,
117        A: GGLWEInfos,
118        K: GGLWEInfos,
119    {
120        self.glwe_keyswitch_tmp_bytes(res_infos, a_infos, key_infos)
121    }
122
123    fn gglwe_keyswitch<R, A, B>(&self, res: &mut R, a: &A, b: &B, scratch: &mut Scratch<BE>)
124    where
125        R: GGLWEToMut,
126        A: GGLWEToRef,
127        B: GGLWEPreparedToRef<BE> + GGLWEInfos,
128        Scratch<BE>: ScratchTakeCore<BE>,
129    {
130        let res: &mut GGLWE<&mut [u8]> = &mut res.to_mut();
131        let a: &GGLWE<&[u8]> = &a.to_ref();
132
133        assert_eq!(
134            res.rank_in(),
135            a.rank_in(),
136            "res input rank: {} != a input rank: {}",
137            res.rank_in(),
138            a.rank_in()
139        );
140        assert_eq!(
141            a.rank_out(),
142            b.rank_in(),
143            "res output rank: {} != b input rank: {}",
144            a.rank_out(),
145            b.rank_in()
146        );
147        assert_eq!(
148            res.rank_out(),
149            b.rank_out(),
150            "res output rank: {} != b output rank: {}",
151            res.rank_out(),
152            b.rank_out()
153        );
154        assert!(
155            res.dnum() <= a.dnum(),
156            "res.dnum()={} > a.dnum()={}",
157            res.dnum(),
158            a.dnum()
159        );
160        assert_eq!(
161            res.dsize(),
162            a.dsize(),
163            "res dsize: {} != a dsize: {}",
164            res.dsize(),
165            a.dsize()
166        );
167
168        for row in 0..res.dnum().into() {
169            for col in 0..res.rank_in().into() {
170                self.glwe_keyswitch(&mut res.at_mut(row, col), &a.at(row, col), b, scratch);
171            }
172        }
173    }
174
175    fn gglwe_keyswitch_inplace<R, A>(&self, res: &mut R, a: &A, scratch: &mut Scratch<BE>)
176    where
177        R: GGLWEToMut,
178        A: GGLWEPreparedToRef<BE> + GGLWEInfos,
179        Scratch<BE>: ScratchTakeCore<BE>,
180    {
181        let res: &mut GGLWE<&mut [u8]> = &mut res.to_mut();
182
183        assert_eq!(
184            res.rank_out(),
185            a.rank_out(),
186            "res output rank: {} != a output rank: {}",
187            res.rank_out(),
188            a.rank_out()
189        );
190
191        for row in 0..res.dnum().into() {
192            for col in 0..res.rank_in().into() {
193                self.glwe_keyswitch_inplace(&mut res.at_mut(row, col), a, scratch);
194            }
195        }
196    }
197}
198
199impl<DataSelf: DataMut> GLWESwitchingKey<DataSelf> {}
poulpy_core/keyswitching/gglwe.rs

poulpy_core/keyswitching/
gglwe.rs
