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wip on gadget product

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This commit is contained in:
Jean-Philippe Bossuat
2025-02-12 11:40:36 +01:00
parent c5da752536
commit dc2fab9a04
8 changed files with 102 additions and 56 deletions
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10
rlwe/src/evaluator.rs
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@@ -16,7 +16,7 @@ pub fn gadget_product_tmp_bytes(
+ 2 * module.bytes_of_vec_znx_dft(gct_cols)
}
pub fn gadget_product_inplace(
pub fn gadget_product_inplace_thread_safe(
module: &Module,
a: &mut Ciphertext,
b: &GadgetCiphertext,
@@ -26,11 +26,11 @@ pub fn gadget_product_inplace(
// overwritten.
unsafe {
let a_ptr: *mut Ciphertext = a;
gadget_product(module, a, &*a_ptr, b, tmp_bytes)
gadget_product_thread_safe(module, a, &*a_ptr, b, tmp_bytes)
}
}
pub fn gadget_product(
pub fn gadget_product_thread_safe(
module: &Module,
res: &mut Ciphertext,
a: &Ciphertext,
@@ -56,10 +56,10 @@ pub fn gadget_product(
let mut res_dft: VecZnxDft = module.new_vec_znx_from_bytes(cols, tmp_bytes_res_dft);
let mut res_big: VecZnxBig = res_dft.as_vec_znx_big();
// c1_dft <- DFT(b[1])
// c1_dft <- DFT(c1) [cols]
module.vec_znx_dft(&mut c1_dft, a.at(1), a.limbs());
// res_dft <- DFT(c1) x GadgetCiphertext[0]
// res_dft <- sum[rows] DFT(c1)[cols] x GadgetCiphertext[0][cols]
module.vmp_apply_dft_to_dft(&mut res_dft, &c1_dft, &b.value[0], tmp_bytes_vmp_apply_dft);
// res_big <- IDFT(DFT(c1) x GadgetCiphertext[0])