Add bdd rotation

poulpy-schemes/src/tfhe/bdd_arithmetic/ciphertexts/block.rs

@@ -39,6 +39,17 @@ impl<D: DataRef, T: UnsignedInteger> GLWEInfos for FheUintBlocks<D, T> {
     }
 }
 
+impl<D: Data, T: UnsignedInteger> FheUintBlocks<D, T> {
+    pub fn new(blocks: Vec<GLWE<D>>) -> Self {
+        assert_eq!(blocks.len(), T::WORD_SIZE);
+        Self {
+            blocks,
+            _base: 1,
+            _phantom: PhantomData,
+        }
+    }
+}
+
 impl<T: UnsignedInteger> FheUintBlocks<Vec<u8>, T> {
     pub fn alloc_from_infos<A, BE: Backend>(module: &Module<BE>, infos: &A) -> Self
     where

poulpy-schemes/src/tfhe/bdd_arithmetic/ciphertexts/block_prepared.rs

@@ -3,6 +3,7 @@ use std::marker::PhantomData;
 use poulpy_core::layouts::{
     Base2K, Dnum, Dsize, GGSWInfos, GGSWPreparedFactory, GLWEInfos, LWEInfos, Rank, TorusPrecision, prepared::GGSWPrepared,
 };
+use poulpy_core::layouts::{GGSWPreparedToMut, GGSWPreparedToRef};
 
 use poulpy_core::{GGSWEncryptSk, ScratchTakeCore, layouts::GLWESecretPreparedToRef};
 use poulpy_hal::layouts::{Backend, Data, DataRef, Module};
@@ -28,6 +29,28 @@ impl<T: UnsignedInteger, BE: Backend> FheUintBlocksPreparedFactory<T, BE> for Mo
 {
 }
 
+pub trait GetGGSWBit<T: UnsignedInteger, BE: Backend> {
+    fn get_bit(&self, bit: usize) -> GGSWPrepared<&[u8], BE>;
+}
+
+impl<D: DataRef, T: UnsignedInteger, BE: Backend> GetGGSWBit<T, BE> for FheUintBlocksPrepared<D, T, BE> {
+    fn get_bit(&self, bit: usize) -> GGSWPrepared<&[u8], BE> {
+        assert!(bit <= self.blocks.len());
+        self.blocks[bit].to_ref()
+    }
+}
+
+pub trait GetGGSWBitMut<T: UnsignedInteger, BE: Backend> {
+    fn get_bit(&mut self, bit: usize) -> GGSWPrepared<&mut [u8], BE>;
+}
+
+impl<D: DataMut, T: UnsignedInteger, BE: Backend> GetGGSWBitMut<T, BE> for FheUintBlocksPrepared<D, T, BE> {
+    fn get_bit(&mut self, bit: usize) -> GGSWPrepared<&mut [u8], BE> {
+        assert!(bit <= self.blocks.len());
+        self.blocks[bit].to_mut()
+    }
+}
+
 pub trait FheUintBlocksPreparedFactory<T: UnsignedInteger, BE: Backend>
 where
     Self: Sized + GGSWPreparedFactory<BE>,