1use backend::{Backend, FFT64, Module, VecZnx, VecZnxAlloc, VecZnxToMut, VecZnxToRef};
 2
 3use crate::{
 4    GLWEOps, Infos, SetMetaData,
 5    ciphertext::{GLWECiphertext, GLWECiphertextToMut, GLWECiphertextToRef},
 6    div_ceil,
 7};
 8
 9pub struct GLWEPlaintext<C> {
10    pub data: VecZnx<C>,
11    pub basek: usize,
12    pub k: usize,
13}
14
15impl<T> Infos for GLWEPlaintext<T> {
16    type Inner = VecZnx<T>;
17
18    fn inner(&self) -> &Self::Inner {
19        &self.data
20    }
21
22    fn basek(&self) -> usize {
23        self.basek
24    }
25
26    fn k(&self) -> usize {
27        self.k
28    }
29}
30
31impl<DataSelf: AsMut<[u8]> + AsRef<[u8]>> SetMetaData for GLWEPlaintext<DataSelf> {
32    fn set_k(&mut self, k: usize) {
33        self.k = k
34    }
35
36    fn set_basek(&mut self, basek: usize) {
37        self.basek = basek
38    }
39}
40
41impl GLWEPlaintext<Vec<u8>> {
42    pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize) -> Self {
43        Self {
44            data: module.new_vec_znx(1, k.div_ceil(basek)),
45            basek: basek,
46            k,
47        }
48    }
49
50    pub fn byte_of(module: &Module<FFT64>, basek: usize, k: usize) -> usize {
51        module.bytes_of_vec_znx(1, k.div_ceil(basek))
52    }
53}
54
55impl<D: AsRef<[u8]>> GLWECiphertextToRef for GLWEPlaintext<D> {
56    fn to_ref(&self) -> GLWECiphertext<&[u8]> {
57        GLWECiphertext {
58            data: self.data.to_ref(),
59            basek: self.basek,
60            k: self.k,
61        }
62    }
63}
64
65impl<D: AsMut<[u8]> + AsRef<[u8]>> GLWECiphertextToMut for GLWEPlaintext<D> {
66    fn to_mut(&mut self) -> GLWECiphertext<&mut [u8]> {
67        GLWECiphertext {
68            data: self.data.to_mut(),
69            basek: self.basek,
70            k: self.k,
71        }
72    }
73}
74
75impl<D> GLWEOps for GLWEPlaintext<D>
76where
77    D: AsRef<[u8]> + AsMut<[u8]>,
78    GLWEPlaintext<D>: GLWECiphertextToMut + Infos + SetMetaData,
79{
80}