Traits reduction, file + structs renaming

2026-02-10 05:06:44 +01:00 · 2025-10-21 10:17:52 +02:00
parent 77b49ea530
commit db3b20b8f6
106 changed files with 1026 additions and 1108 deletions
--- a/poulpy-core/src/noise/glwe.rs
+++ b/poulpy-core/src/noise/glwe.rs
@@ -0,0 +1,80 @@
+use poulpy_hal::{
+    api::{ScratchOwnedAlloc, ScratchOwnedBorrow, VecZnxNormalizeInplace, VecZnxSubInplace},
+    layouts::{Backend, DataRef, Module, Scratch, ScratchOwned},
+};
+
+use crate::{
+    ScratchTakeCore,
+    decryption::GLWEDecrypt,
+    layouts::{GLWE, GLWEPlaintext, GLWEPlaintextToRef, GLWEToRef, LWEInfos, prepared::GLWESecretPreparedToRef},
+};
+
+impl<D: DataRef> GLWE<D> {
+    pub fn noise<M, S, P, BE: Backend>(&self, module: &M, sk_prepared: &S, pt_want: &P, scratch: &mut Scratch<BE>) -> f64
+    where
+        M: GLWENoise<BE>,
+        S: GLWESecretPreparedToRef<BE>,
+        P: GLWEPlaintextToRef,
+    {
+        module.glwe_noise(self, sk_prepared, pt_want, scratch)
+    }
+
+    pub fn assert_noise<M, BE: Backend, S, P>(&self, module: &M, sk_prepared: &S, pt_want: &P, max_noise: f64)
+    where
+        S: GLWESecretPreparedToRef<BE>,
+        P: GLWEPlaintextToRef,
+        M: GLWENoise<BE>,
+    {
+        module.glwe_assert_noise(self, sk_prepared, pt_want, max_noise);
+    }
+}
+
+pub trait GLWENoise<BE: Backend> {
+    fn glwe_noise<R, S, P>(&self, res: &R, sk_prepared: &S, pt_want: &P, scratch: &mut Scratch<BE>) -> f64
+    where
+        R: GLWEToRef,
+        S: GLWESecretPreparedToRef<BE>,
+        P: GLWEPlaintextToRef;
+
+    fn glwe_assert_noise<R, S, P>(&self, res: &R, sk_prepared: &S, pt_want: &P, max_noise: f64)
+    where
+        R: GLWEToRef,
+        S: GLWESecretPreparedToRef<BE>,
+        P: GLWEPlaintextToRef;
+}
+
+impl<BE: Backend> GLWENoise<BE> for Module<BE>
+where
+    Module<BE>: GLWEDecrypt<BE> + VecZnxSubInplace + VecZnxNormalizeInplace<BE>,
+    ScratchOwned<BE>: ScratchOwnedAlloc<BE> + ScratchOwnedBorrow<BE>,
+    Scratch<BE>: ScratchTakeCore<BE>,
+{
+    fn glwe_noise<R, S, P>(&self, res: &R, sk_prepared: &S, pt_want: &P, scratch: &mut Scratch<BE>) -> f64
+    where
+        R: GLWEToRef,
+        S: GLWESecretPreparedToRef<BE>,
+        P: GLWEPlaintextToRef,
+    {
+        let res_ref: &GLWE<&[u8]> = &res.to_ref();
+
+        let pt_want: &GLWEPlaintext<&[u8]> = &pt_want.to_ref();
+
+        let mut pt_have: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::alloc_from_infos(res_ref);
+        self.glwe_decrypt(res, &mut pt_have, sk_prepared, scratch);
+        self.vec_znx_sub_inplace(&mut pt_have.data, 0, &pt_want.data, 0);
+        self.vec_znx_normalize_inplace(res_ref.base2k().into(), &mut pt_have.data, 0, scratch);
+        pt_have.data.std(res_ref.base2k().into(), 0).log2()
+    }
+
+    fn glwe_assert_noise<R, S, P>(&self, res: &R, sk_prepared: &S, pt_want: &P, max_noise: f64)
+    where
+        R: GLWEToRef,
+        S: GLWESecretPreparedToRef<BE>,
+        P: GLWEPlaintextToRef,
+    {
+        let res: &GLWE<&[u8]> = &res.to_ref();
+        let mut scratch: ScratchOwned<BE> = ScratchOwned::alloc(self.glwe_decrypt_tmp_bytes(res));
+        let noise_have: f64 = self.glwe_noise(res, sk_prepared, pt_want, scratch.borrow());
+        assert!(noise_have <= max_noise, "{noise_have} {max_noise}");
+    }
+}