core refactoring (#69)

core/src/layouts/prepared/lwe_ksk.rs

@@ -0,0 +1,86 @@
+use backend::hal::{
+    api::{VmpPMatAlloc, VmpPMatAllocBytes, VmpPMatPrepare},
+    layouts::{Backend, Data, DataMut, DataRef, Module, Scratch, VmpPMat},
+};
+
+use crate::layouts::{Infos, LWESwitchingKey, prepared::GGLWESwitchingKeyExec};
+
+#[derive(PartialEq, Eq)]
+pub struct LWESwitchingKeyExec<D: Data, B: Backend>(pub(crate) GGLWESwitchingKeyExec<D, B>);
+
+impl<D: Data, B: Backend> Infos for LWESwitchingKeyExec<D, B> {
+    type Inner = VmpPMat<D, B>;
+
+    fn inner(&self) -> &Self::Inner {
+        &self.0.inner()
+    }
+
+    fn basek(&self) -> usize {
+        self.0.basek()
+    }
+
+    fn k(&self) -> usize {
+        self.0.k()
+    }
+}
+
+impl<D: Data, B: Backend> LWESwitchingKeyExec<D, B> {
+    pub fn digits(&self) -> usize {
+        self.0.digits()
+    }
+
+    pub fn rank(&self) -> usize {
+        self.0.rank()
+    }
+
+    pub fn rank_in(&self) -> usize {
+        self.0.rank_in()
+    }
+
+    pub fn rank_out(&self) -> usize {
+        self.0.rank_out()
+    }
+}
+
+impl<B: Backend> LWESwitchingKeyExec<Vec<u8>, B> {
+    pub fn alloc(module: &Module<B>, n: usize, basek: usize, k: usize, rows: usize) -> Self
+    where
+        Module<B>: VmpPMatAlloc<B>,
+    {
+        Self(GGLWESwitchingKeyExec::alloc(
+            module, n, basek, k, rows, 1, 1, 1,
+        ))
+    }
+
+    pub fn bytes_of(module: &Module<B>, n: usize, basek: usize, k: usize, rows: usize, digits: usize) -> usize
+    where
+        Module<B>: VmpPMatAllocBytes,
+    {
+        GGLWESwitchingKeyExec::<Vec<u8>, B>::bytes_of(module, n, basek, k, rows, digits, 1, 1)
+    }
+
+    pub fn from<DataOther: DataRef>(module: &Module<B>, other: &LWESwitchingKey<DataOther>, scratch: &mut Scratch<B>) -> Self
+    where
+        Module<B>: VmpPMatAlloc<B> + VmpPMatPrepare<B>,
+    {
+        let mut ksk_exec: LWESwitchingKeyExec<Vec<u8>, B> = Self::alloc(
+            module,
+            other.0.n(),
+            other.0.basek(),
+            other.0.k(),
+            other.0.rows(),
+        );
+        ksk_exec.prepare(module, other, scratch);
+        ksk_exec
+    }
+}
+
+impl<D: DataMut, B: Backend> LWESwitchingKeyExec<D, B> {
+    pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &LWESwitchingKey<DataOther>, scratch: &mut Scratch<B>)
+    where
+        DataOther: DataRef,
+        Module<B>: VmpPMatPrepare<B>,
+    {
+        self.0.prepare(module, &other.0, scratch);
+    }
+}