1use poulpy_backend::hal::{
  2    api::{FillUniform, Reset},
  3    api::{
  4        SvpApplyInplace, SvpPPolAlloc, SvpPPolAllocBytes, SvpPrepare, VecZnxAddInplace, VecZnxAddNormal, VecZnxBigNormalize,
  5        VecZnxCopy, VecZnxDftAllocBytes, VecZnxDftFromVecZnx, VecZnxDftToVecZnxBigConsume, VecZnxFillUniform, VecZnxNormalize,
  6        VecZnxNormalizeInplace, VecZnxNormalizeTmpBytes, VecZnxSub, VecZnxSubABInplace,
  7    },
  8    layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, WriterTo},
  9    source::Source,
 10};
 11
 12use crate::layouts::{
 13    Infos, LWEToGLWESwitchingKey,
 14    compressed::{Decompress, GGLWESwitchingKeyCompressed},
 15};
 16use std::fmt;
 17
 18#[derive(PartialEq, Eq, Clone)]
 19pub struct LWEToGLWESwitchingKeyCompressed<D: Data>(pub(crate) GGLWESwitchingKeyCompressed<D>);
 20
 21impl<D: DataRef> fmt::Debug for LWEToGLWESwitchingKeyCompressed<D> {
 22    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 23        write!(f, "{}", self)
 24    }
 25}
 26
 27impl<D: DataMut> FillUniform for LWEToGLWESwitchingKeyCompressed<D> {
 28    fn fill_uniform(&mut self, source: &mut Source) {
 29        self.0.fill_uniform(source);
 30    }
 31}
 32
 33impl<D: DataMut> Reset for LWEToGLWESwitchingKeyCompressed<D> {
 34    fn reset(&mut self) {
 35        self.0.reset();
 36    }
 37}
 38
 39impl<D: DataRef> fmt::Display for LWEToGLWESwitchingKeyCompressed<D> {
 40    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 41        write!(f, "(LWEToGLWESwitchingKeyCompressed) {}", self.0)
 42    }
 43}
 44
 45impl<D: Data> Infos for LWEToGLWESwitchingKeyCompressed<D> {
 46    type Inner = MatZnx<D>;
 47
 48    fn inner(&self) -> &Self::Inner {
 49        self.0.inner()
 50    }
 51
 52    fn basek(&self) -> usize {
 53        self.0.basek()
 54    }
 55
 56    fn k(&self) -> usize {
 57        self.0.k()
 58    }
 59}
 60
 61impl<D: Data> LWEToGLWESwitchingKeyCompressed<D> {
 62    pub fn digits(&self) -> usize {
 63        self.0.digits()
 64    }
 65
 66    pub fn rank(&self) -> usize {
 67        self.0.rank()
 68    }
 69
 70    pub fn rank_in(&self) -> usize {
 71        self.0.rank_in()
 72    }
 73
 74    pub fn rank_out(&self) -> usize {
 75        self.0.rank_out()
 76    }
 77}
 78
 79impl<D: DataMut> ReaderFrom for LWEToGLWESwitchingKeyCompressed<D> {
 80    fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
 81        self.0.read_from(reader)
 82    }
 83}
 84
 85impl<D: DataRef> WriterTo for LWEToGLWESwitchingKeyCompressed<D> {
 86    fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
 87        self.0.write_to(writer)
 88    }
 89}
 90
 91impl LWEToGLWESwitchingKeyCompressed<Vec<u8>> {
 92    pub fn alloc(n: usize, basek: usize, k: usize, rows: usize, rank_out: usize) -> Self {
 93        Self(GGLWESwitchingKeyCompressed::alloc(
 94            n, basek, k, rows, 1, 1, rank_out,
 95        ))
 96    }
 97
 98    pub fn encrypt_sk_scratch_space<B: Backend>(module: &Module<B>, n: usize, basek: usize, k: usize, rank_out: usize) -> usize
 99    where
100        Module<B>: VecZnxDftAllocBytes
101            + VecZnxBigNormalize<B>
102            + VecZnxDftFromVecZnx<B>
103            + SvpApplyInplace<B>
104            + VecZnxDftToVecZnxBigConsume<B>
105            + VecZnxNormalizeTmpBytes
106            + VecZnxFillUniform
107            + VecZnxSubABInplace
108            + VecZnxAddInplace
109            + VecZnxNormalizeInplace<B>
110            + VecZnxAddNormal
111            + VecZnxNormalize<B>
112            + VecZnxSub
113            + SvpPrepare<B>
114            + SvpPPolAllocBytes
115            + SvpPPolAlloc<B>,
116    {
117        LWEToGLWESwitchingKey::encrypt_sk_scratch_space(module, n, basek, k, rank_out)
118    }
119}
120
121impl<D: DataMut, DR: DataRef, B: Backend> Decompress<B, LWEToGLWESwitchingKeyCompressed<DR>> for LWEToGLWESwitchingKey<D> {
122    fn decompress(&mut self, module: &Module<B>, other: &LWEToGLWESwitchingKeyCompressed<DR>)
123    where
124        Module<B>: VecZnxCopy + VecZnxFillUniform,
125    {
126        self.0.decompress(module, &other.0);
127    }
128}