Reorganized other crates

core/src/gglwe/ciphertext.rs

@@ -0,0 +1,131 @@
+use backend::{Backend, FFT64, MatZnxDft, MatZnxDftAlloc, MatZnxDftOps, Module};
+
+use crate::{FourierGLWECiphertext, GetRow, Infos, SetRow, div_ceil};
+
+pub struct GGLWECiphertext<C, B: Backend> {
+    pub(crate) data: MatZnxDft<C, B>,
+    pub(crate) basek: usize,
+    pub(crate) k: usize,
+    pub(crate) digits: usize,
+}
+
+impl<B: Backend> GGLWECiphertext<Vec<u8>, B> {
+    pub fn alloc(
+        module: &Module<B>,
+        basek: usize,
+        k: usize,
+        rows: usize,
+        digits: usize,
+        rank_in: usize,
+        rank_out: usize,
+    ) -> Self {
+        let size: usize = div_ceil(k, basek);
+        debug_assert!(
+            size > digits,
+            "invalid gglwe: ceil(k/basek): {} <= digits: {}",
+            size,
+            digits
+        );
+
+        assert!(
+            rows * digits <= size,
+            "invalid gglwe: rows: {} * digits:{} > ceil(k/basek): {}",
+            rows,
+            digits,
+            size
+        );
+
+        Self {
+            data: module.new_mat_znx_dft(rows, rank_in, rank_out + 1, size),
+            basek: basek,
+            k,
+            digits,
+        }
+    }
+
+    pub fn bytes_of(
+        module: &Module<FFT64>,
+        basek: usize,
+        k: usize,
+        rows: usize,
+        digits: usize,
+        rank_in: usize,
+        rank_out: usize,
+    ) -> usize {
+        let size: usize = div_ceil(k, basek);
+        debug_assert!(
+            size > digits,
+            "invalid gglwe: ceil(k/basek): {} <= digits: {}",
+            size,
+            digits
+        );
+
+        assert!(
+            rows * digits <= size,
+            "invalid gglwe: rows: {} * digits:{} > ceil(k/basek): {}",
+            rows,
+            digits,
+            size
+        );
+
+        module.bytes_of_mat_znx_dft(rows, rank_in, rank_out + 1, rows)
+    }
+}
+
+impl<T, B: Backend> Infos for GGLWECiphertext<T, B> {
+    type Inner = MatZnxDft<T, B>;
+
+    fn inner(&self) -> &Self::Inner {
+        &self.data
+    }
+
+    fn basek(&self) -> usize {
+        self.basek
+    }
+
+    fn k(&self) -> usize {
+        self.k
+    }
+}
+
+impl<T, B: Backend> GGLWECiphertext<T, B> {
+    pub fn rank(&self) -> usize {
+        self.data.cols_out() - 1
+    }
+
+    pub fn digits(&self) -> usize {
+        self.digits
+    }
+
+    pub fn rank_in(&self) -> usize {
+        self.data.cols_in()
+    }
+
+    pub fn rank_out(&self) -> usize {
+        self.data.cols_out() - 1
+    }
+}
+
+impl<C: AsRef<[u8]>> GetRow<FFT64> for GGLWECiphertext<C, FFT64> {
+    fn get_row<R: AsMut<[u8]> + AsRef<[u8]>>(
+        &self,
+        module: &Module<FFT64>,
+        row_i: usize,
+        col_j: usize,
+        res: &mut FourierGLWECiphertext<R, FFT64>,
+    ) {
+        module.mat_znx_dft_get_row(&mut res.data, &self.data, row_i, col_j);
+    }
+}
+
+impl<C: AsMut<[u8]> + AsRef<[u8]>> SetRow<FFT64> for GGLWECiphertext<C, FFT64> {
+    fn set_row<R: AsRef<[u8]>>(
+        &mut self,
+        module: &Module<FFT64>,
+        row_i: usize,
+        col_j: usize,
+        a: &FourierGLWECiphertext<R, FFT64>,
+    ) {
+        module.mat_znx_dft_set_row(&mut self.data, row_i, col_j, &a.data);
+    }
+}