poulpy_core/layouts/
gglwe_atk.rs

1use poulpy_hal::{
2    layouts::{Data, DataMut, DataRef, FillUniform, MatZnx, ReaderFrom, Reset, WriterTo},
3    source::Source,
4};
5
6use crate::layouts::{GGLWESwitchingKey, GLWECiphertext, Infos};
7use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
8
9use std::fmt;
10
11#[derive(PartialEq, Eq, Clone)]
12pub struct GGLWEAutomorphismKey<D: Data> {
13    pub(crate) key: GGLWESwitchingKey<D>,
14    pub(crate) p: i64,
15}
16
17impl<D: DataRef> fmt::Debug for GGLWEAutomorphismKey<D> {
18    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
19        write!(f, "{}", self)
20    }
21}
22
23impl<D: DataMut> FillUniform for GGLWEAutomorphismKey<D> {
24    fn fill_uniform(&mut self, log_bound: usize, source: &mut Source) {
25        self.key.fill_uniform(log_bound, source);
26    }
27}
28
29impl<D: DataMut> Reset for GGLWEAutomorphismKey<D>
30where
31    MatZnx<D>: Reset,
32{
33    fn reset(&mut self) {
34        self.key.reset();
35        self.p = 0;
36    }
37}
38
39impl<D: DataRef> fmt::Display for GGLWEAutomorphismKey<D> {
40    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
41        write!(f, "(AutomorphismKey: p={}) {}", self.p, self.key)
42    }
43}
44
45impl GGLWEAutomorphismKey<Vec<u8>> {
46    pub fn alloc(n: usize, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self {
47        GGLWEAutomorphismKey {
48            key: GGLWESwitchingKey::alloc(n, basek, k, rows, digits, rank, rank),
49            p: 0,
50        }
51    }
52
53    pub fn bytes_of(n: usize, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize {
54        GGLWESwitchingKey::bytes_of(n, basek, k, rows, digits, rank, rank)
55    }
56}
57
58impl<D: Data> Infos for GGLWEAutomorphismKey<D> {
59    type Inner = MatZnx<D>;
60
61    fn inner(&self) -> &Self::Inner {
62        self.key.inner()
63    }
64
65    fn basek(&self) -> usize {
66        self.key.basek()
67    }
68
69    fn k(&self) -> usize {
70        self.key.k()
71    }
72}
73
74impl<D: Data> GGLWEAutomorphismKey<D> {
75    pub fn p(&self) -> i64 {
76        self.p
77    }
78
79    pub fn digits(&self) -> usize {
80        self.key.digits()
81    }
82
83    pub fn rank(&self) -> usize {
84        self.key.rank()
85    }
86
87    pub fn rank_in(&self) -> usize {
88        self.key.rank_in()
89    }
90
91    pub fn rank_out(&self) -> usize {
92        self.key.rank_out()
93    }
94}
95
96impl<D: DataRef> GGLWEAutomorphismKey<D> {
97    pub fn at(&self, row: usize, col: usize) -> GLWECiphertext<&[u8]> {
98        self.key.at(row, col)
99    }
100}
101
102impl<D: DataMut> GGLWEAutomorphismKey<D> {
103    pub fn at_mut(&mut self, row: usize, col: usize) -> GLWECiphertext<&mut [u8]> {
104        self.key.at_mut(row, col)
105    }
106}
107
108impl<D: DataMut> ReaderFrom for GGLWEAutomorphismKey<D> {
109    fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
110        self.p = reader.read_u64::<LittleEndian>()? as i64;
111        self.key.read_from(reader)
112    }
113}
114
115impl<D: DataRef> WriterTo for GGLWEAutomorphismKey<D> {
116    fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
117        writer.write_u64::<LittleEndian>(self.p as u64)?;
118        self.key.write_to(writer)
119    }
120}
poulpy_core/layouts/gglwe_atk.rs

poulpy_core/layouts/
gglwe_atk.rs
