Traits reduction, file + structs renaming

poulpy-core/src/layouts/glwe_switching_key.rs

@@ -0,0 +1,255 @@
+use poulpy_hal::{
+    layouts::{Data, DataMut, DataRef, FillUniform, ReaderFrom, WriterTo},
+    source::Source,
+};
+
+use crate::layouts::{
+    Base2K, Degree, Dnum, Dsize, GGLWE, GGLWEInfos, GGLWEToMut, GGLWEToRef, GLWE, GLWEInfos, LWEInfos, Rank, TorusPrecision,
+};
+use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
+
+use std::fmt;
+
+#[derive(PartialEq, Eq, Copy, Clone, Debug)]
+pub struct GLWESwitchingKeyLayout {
+    pub n: Degree,
+    pub base2k: Base2K,
+    pub k: TorusPrecision,
+    pub rank_in: Rank,
+    pub rank_out: Rank,
+    pub dnum: Dnum,
+    pub dsize: Dsize,
+}
+
+impl LWEInfos for GLWESwitchingKeyLayout {
+    fn n(&self) -> Degree {
+        self.n
+    }
+
+    fn base2k(&self) -> Base2K {
+        self.base2k
+    }
+
+    fn k(&self) -> TorusPrecision {
+        self.k
+    }
+}
+
+impl GLWEInfos for GLWESwitchingKeyLayout {
+    fn rank(&self) -> Rank {
+        self.rank_out()
+    }
+}
+
+impl GGLWEInfos for GLWESwitchingKeyLayout {
+    fn rank_in(&self) -> Rank {
+        self.rank_in
+    }
+
+    fn rank_out(&self) -> Rank {
+        self.rank_out
+    }
+
+    fn dsize(&self) -> Dsize {
+        self.dsize
+    }
+
+    fn dnum(&self) -> Dnum {
+        self.dnum
+    }
+}
+
+#[derive(PartialEq, Eq, Clone)]
+pub struct GLWESwitchingKey<D: Data> {
+    pub(crate) key: GGLWE<D>,
+    pub(crate) input_degree: Degree,  // Degree of sk_in
+    pub(crate) output_degree: Degree, // Degree of sk_out
+}
+
+pub trait GLWESwitchingKeyDegrees {
+    fn input_degree(&self) -> &Degree;
+    fn output_degree(&self) -> &Degree;
+}
+
+impl<D: DataRef> GLWESwitchingKeyDegrees for GLWESwitchingKey<D> {
+    fn output_degree(&self) -> &Degree {
+        &self.output_degree
+    }
+
+    fn input_degree(&self) -> &Degree {
+        &self.input_degree
+    }
+}
+
+pub trait GLWESwitchingKeyDegreesMut {
+    fn input_degree(&mut self) -> &mut Degree;
+    fn output_degree(&mut self) -> &mut Degree;
+}
+
+impl<D: DataMut> GLWESwitchingKeyDegreesMut for GLWESwitchingKey<D> {
+    fn output_degree(&mut self) -> &mut Degree {
+        &mut self.output_degree
+    }
+
+    fn input_degree(&mut self) -> &mut Degree {
+        &mut self.input_degree
+    }
+}
+
+impl<D: Data> LWEInfos for GLWESwitchingKey<D> {
+    fn n(&self) -> Degree {
+        self.key.n()
+    }
+
+    fn base2k(&self) -> Base2K {
+        self.key.base2k()
+    }
+
+    fn k(&self) -> TorusPrecision {
+        self.key.k()
+    }
+
+    fn size(&self) -> usize {
+        self.key.size()
+    }
+}
+
+impl<D: Data> GLWEInfos for GLWESwitchingKey<D> {
+    fn rank(&self) -> Rank {
+        self.rank_out()
+    }
+}
+
+impl<D: Data> GGLWEInfos for GLWESwitchingKey<D> {
+    fn rank_in(&self) -> Rank {
+        self.key.rank_in()
+    }
+
+    fn rank_out(&self) -> Rank {
+        self.key.rank_out()
+    }
+
+    fn dsize(&self) -> Dsize {
+        self.key.dsize()
+    }
+
+    fn dnum(&self) -> Dnum {
+        self.key.dnum()
+    }
+}
+
+impl<D: DataRef> fmt::Debug for GLWESwitchingKey<D> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{self}")
+    }
+}
+
+impl<D: DataRef> fmt::Display for GLWESwitchingKey<D> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "(GLWESwitchingKey: sk_in_n={} sk_out_n={}) {}",
+            self.input_degree,
+            self.output_degree,
+            self.key.data()
+        )
+    }
+}
+
+impl<D: DataMut> FillUniform for GLWESwitchingKey<D> {
+    fn fill_uniform(&mut self, log_bound: usize, source: &mut Source) {
+        self.key.fill_uniform(log_bound, source);
+    }
+}
+
+impl GLWESwitchingKey<Vec<u8>> {
+    pub fn alloc_from_infos<A>(infos: &A) -> Self
+    where
+        A: GGLWEInfos,
+    {
+        Self::alloc(
+            infos.n(),
+            infos.base2k(),
+            infos.k(),
+            infos.rank_in(),
+            infos.rank_out(),
+            infos.dnum(),
+            infos.dsize(),
+        )
+    }
+
+    pub fn alloc(n: Degree, base2k: Base2K, k: TorusPrecision, rank_in: Rank, rank_out: Rank, dnum: Dnum, dsize: Dsize) -> Self {
+        GLWESwitchingKey {
+            key: GGLWE::alloc(n, base2k, k, rank_in, rank_out, dnum, dsize),
+            input_degree: Degree(0),
+            output_degree: Degree(0),
+        }
+    }
+
+    pub fn bytes_of_from_infos<A>(infos: &A) -> usize
+    where
+        A: GGLWEInfos,
+    {
+        Self::bytes_of(
+            infos.n(),
+            infos.base2k(),
+            infos.k(),
+            infos.rank_in(),
+            infos.rank_out(),
+            infos.dnum(),
+            infos.dsize(),
+        )
+    }
+
+    pub fn bytes_of(
+        n: Degree,
+        base2k: Base2K,
+        k: TorusPrecision,
+        rank_in: Rank,
+        rank_out: Rank,
+        dnum: Dnum,
+        dsize: Dsize,
+    ) -> usize {
+        GGLWE::bytes_of(n, base2k, k, rank_in, rank_out, dnum, dsize)
+    }
+}
+
+impl<D: DataMut> GGLWEToMut for GLWESwitchingKey<D> {
+    fn to_mut(&mut self) -> GGLWE<&mut [u8]> {
+        self.key.to_mut()
+    }
+}
+
+impl<D: DataRef> GGLWEToRef for GLWESwitchingKey<D> {
+    fn to_ref(&self) -> GGLWE<&[u8]> {
+        self.key.to_ref()
+    }
+}
+
+impl<D: DataRef> GLWESwitchingKey<D> {
+    pub fn at(&self, row: usize, col: usize) -> GLWE<&[u8]> {
+        self.key.at(row, col)
+    }
+}
+
+impl<D: DataMut> GLWESwitchingKey<D> {
+    pub fn at_mut(&mut self, row: usize, col: usize) -> GLWE<&mut [u8]> {
+        self.key.at_mut(row, col)
+    }
+}
+
+impl<D: DataMut> ReaderFrom for GLWESwitchingKey<D> {
+    fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
+        self.input_degree = Degree(reader.read_u32::<LittleEndian>()? as u32);
+        self.output_degree = Degree(reader.read_u32::<LittleEndian>()? as u32);
+        self.key.read_from(reader)
+    }
+}
+
+impl<D: DataRef> WriterTo for GLWESwitchingKey<D> {
+    fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
+        writer.write_u32::<LittleEndian>(self.input_degree.into())?;
+        writer.write_u32::<LittleEndian>(self.output_degree.into())?;
+        self.key.write_to(writer)
+    }
+}