poulpy_core/layouts/compressed/
gglwe_atk.rs

1use poulpy_hal::{
2    api::{FillUniform, Reset, VecZnxCopy, VecZnxFillUniform},
3    layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, WriterTo},
4    source::Source,
5};
6
7use crate::layouts::{
8    GGLWEAutomorphismKey, Infos,
9    compressed::{Decompress, GGLWESwitchingKeyCompressed},
10};
11use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
12use std::fmt;
13
14#[derive(PartialEq, Eq, Clone)]
15pub struct GGLWEAutomorphismKeyCompressed<D: Data> {
16    pub(crate) key: GGLWESwitchingKeyCompressed<D>,
17    pub(crate) p: i64,
18}
19
20impl<D: DataRef> fmt::Debug for GGLWEAutomorphismKeyCompressed<D> {
21    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
22        write!(f, "{}", self)
23    }
24}
25
26impl<D: DataMut> FillUniform for GGLWEAutomorphismKeyCompressed<D> {
27    fn fill_uniform(&mut self, source: &mut Source) {
28        self.key.fill_uniform(source);
29    }
30}
31
32impl<D: DataMut> Reset for GGLWEAutomorphismKeyCompressed<D>
33where
34    MatZnx<D>: Reset,
35{
36    fn reset(&mut self) {
37        self.key.reset();
38        self.p = 0;
39    }
40}
41
42impl<D: DataRef> fmt::Display for GGLWEAutomorphismKeyCompressed<D> {
43    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
44        write!(f, "(AutomorphismKeyCompressed: p={}) {}", self.p, self.key)
45    }
46}
47
48impl GGLWEAutomorphismKeyCompressed<Vec<u8>> {
49    pub fn alloc(n: usize, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self {
50        GGLWEAutomorphismKeyCompressed {
51            key: GGLWESwitchingKeyCompressed::alloc(n, basek, k, rows, digits, rank, rank),
52            p: 0,
53        }
54    }
55
56    pub fn bytes_of(n: usize, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize {
57        GGLWESwitchingKeyCompressed::<Vec<u8>>::bytes_of(n, basek, k, rows, digits, rank)
58    }
59}
60
61impl<D: Data> Infos for GGLWEAutomorphismKeyCompressed<D> {
62    type Inner = MatZnx<D>;
63
64    fn inner(&self) -> &Self::Inner {
65        self.key.inner()
66    }
67
68    fn basek(&self) -> usize {
69        self.key.basek()
70    }
71
72    fn k(&self) -> usize {
73        self.key.k()
74    }
75}
76
77impl<D: Data> GGLWEAutomorphismKeyCompressed<D> {
78    pub fn rank(&self) -> usize {
79        self.key.rank()
80    }
81
82    pub fn digits(&self) -> usize {
83        self.key.digits()
84    }
85
86    pub fn rank_in(&self) -> usize {
87        self.key.rank_in()
88    }
89
90    pub fn rank_out(&self) -> usize {
91        self.key.rank_out()
92    }
93}
94
95impl<D: DataMut> ReaderFrom for GGLWEAutomorphismKeyCompressed<D> {
96    fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
97        self.p = reader.read_u64::<LittleEndian>()? as i64;
98        self.key.read_from(reader)
99    }
100}
101
102impl<D: DataRef> WriterTo for GGLWEAutomorphismKeyCompressed<D> {
103    fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
104        writer.write_u64::<LittleEndian>(self.p as u64)?;
105        self.key.write_to(writer)
106    }
107}
108
109impl<D: DataMut, DR: DataRef, B: Backend> Decompress<B, GGLWEAutomorphismKeyCompressed<DR>> for GGLWEAutomorphismKey<D> {
110    fn decompress(&mut self, module: &Module<B>, other: &GGLWEAutomorphismKeyCompressed<DR>)
111    where
112        Module<B>: VecZnxFillUniform + VecZnxCopy,
113    {
114        self.key.decompress(module, &other.key);
115        self.p = other.p;
116    }
117}
poulpy_core/layouts/compressed/gglwe_atk.rs

poulpy_core/layouts/compressed/
gglwe_atk.rs
