1use backend::{ScalarZnx, ZnxInfos, ZnxZero};
 2use sampling::source::Source;
 3
 4use crate::Distribution;
 5
 6pub struct LWESecret<T> {
 7    pub(crate) data: ScalarZnx<T>,
 8    pub(crate) dist: Distribution,
 9}
10
11impl LWESecret<Vec<u8>> {
12    pub fn alloc(n: usize) -> Self {
13        Self {
14            data: ScalarZnx::new(n, 1),
15            dist: Distribution::NONE,
16        }
17    }
18}
19
20impl<DataSelf> LWESecret<DataSelf> {
21    pub fn n(&self) -> usize {
22        self.data.n()
23    }
24
25    pub fn log_n(&self) -> usize {
26        self.data.log_n()
27    }
28
29    pub fn rank(&self) -> usize {
30        self.data.cols()
31    }
32}
33
34impl<D: AsRef<[u8]> + AsMut<[u8]>> LWESecret<D> {
35    pub fn fill_ternary_prob(&mut self, prob: f64, source: &mut Source) {
36        self.data.fill_ternary_prob(0, prob, source);
37        self.dist = Distribution::TernaryProb(prob);
38    }
39
40    pub fn fill_ternary_hw(&mut self, hw: usize, source: &mut Source) {
41        self.data.fill_ternary_hw(0, hw, source);
42        self.dist = Distribution::TernaryFixed(hw);
43    }
44
45    pub fn fill_binary_prob(&mut self, prob: f64, source: &mut Source) {
46        self.data.fill_binary_prob(0, prob, source);
47        self.dist = Distribution::BinaryProb(prob);
48    }
49
50    pub fn fill_binary_hw(&mut self, hw: usize, source: &mut Source) {
51        self.data.fill_binary_hw(0, hw, source);
52        self.dist = Distribution::BinaryFixed(hw);
53    }
54
55    pub fn fill_binary_block(&mut self, block_size: usize, source: &mut Source) {
56        self.data.fill_binary_block(0, block_size, source);
57        self.dist = Distribution::BinaryBlock(block_size);
58    }
59
60    pub fn fill_zero(&mut self) {
61        self.data.zero();
62        self.dist = Distribution::ZERO;
63    }
64}