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amend rlwe_encrypt example and minor changes at multiple places

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This commit is contained in:
Janmajaya Mall
2025-05-04 19:46:22 +05:30
parent b82a1ca1b4
commit bd105497fd
11 changed files with 267 additions and 414 deletions
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52
base2k/examples/rlwe_encrypt.rs
View File

@@ -1,6 +1,6 @@
use base2k::{ use base2k::{
Encoding, FFT64, Module, Sampling, Scalar, ScalarAlloc, ScalarZnxDft, ScalarZnxDftOps, VecZnx, VecZnxBig, VecZnxBigOps, Encoding, FFT64, Module, Sampling, ScalarAlloc, ScalarZnxDftAlloc, ScalarZnxDftOps, ScratchOwned, VecZnxAlloc, VecZnxBigOps,
VecZnxDft, VecZnxDftOps, VecZnxOps, ZnxInfos, alloc_aligned, VecZnxBigScratch, VecZnxDftAlloc, VecZnxDftOps, ZnxInfos,
}; };
use itertools::izip; use itertools::izip;
use sampling::source::Source; use sampling::source::Source;
@@ -13,24 +13,24 @@ fn main() {
let log_scale: usize = msg_size * log_base2k - 5; let log_scale: usize = msg_size * log_base2k - 5;
let module: Module<FFT64> = Module::<FFT64>::new(n); let module: Module<FFT64> = Module::<FFT64>::new(n);
let mut tmp_bytes_norm: Vec<u8> = alloc_aligned(module.vec_znx_big_normalize_tmp_bytes()); let mut scratch =
let mut tmp_bytes_dft = alloc_aligned(module.bytes_of_vec_znx_dft(1, ct_size)); ScratchOwned::new((2 * module.bytes_of_vec_znx_dft(1, ct_size)) + 2 * module.vec_znx_big_normalize_tmp_bytes());
let seed: [u8; 32] = [0; 32]; let seed: [u8; 32] = [0; 32];
let mut source: Source = Source::new(seed); let mut source: Source = Source::new(seed);
// s <- Z_{-1, 0, 1}[X]/(X^{N}+1) // s <- Z_{-1, 0, 1}[X]/(X^{N}+1)
let mut s: Scalar = module.new_scalar(1); let mut s = module.new_scalar(1);
s.fill_ternary_prob(0, 0.5, &mut source); s.fill_ternary_prob(0, 0.5, &mut source);
// Buffer to store s in the DFT domain // Buffer to store s in the DFT domain
let mut s_dft: ScalarZnxDft<FFT64> = module.new_scalar_znx_dft(s.cols()); let mut s_dft = module.new_scalar_znx_dft(s.cols());
// s_dft <- DFT(s) // s_dft <- DFT(s)
module.svp_prepare(&mut s_dft, 0, &s, 0); module.svp_prepare(&mut s_dft, 0, &s, 0);
// Allocates a VecZnx with two columns: ct=(0, 0) // Allocates a VecZnx with two columns: ct=(0, 0)
let mut ct: VecZnx = module.new_vec_znx( let mut ct = module.new_vec_znx(
2, // Number of columns 2, // Number of columns
ct_size, // Number of small poly per column ct_size, // Number of small poly per column
); );
@@ -39,11 +39,8 @@ fn main() {
module.fill_uniform(log_base2k, &mut ct, 1, ct_size, &mut source); module.fill_uniform(log_base2k, &mut ct, 1, ct_size, &mut source);
// Scratch space for DFT values // Scratch space for DFT values
let mut buf_dft: VecZnxDft<FFT64> = module.new_vec_znx_dft_from_bytes_borrow( let scratch = scratch.borrow();
1, // Number of columns let (mut buf_dft, scratch) = scratch.tmp_vec_znx_dft(&module, 1, ct_size);
ct.size(), // Number of polynomials per column
&mut tmp_bytes_dft,
);
// Applies DFT(ct[1]) * DFT(s) // Applies DFT(ct[1]) * DFT(s)
module.svp_apply_dft( module.svp_apply_dft(
@@ -56,13 +53,14 @@ fn main() {
); );
// Alias scratch space (VecZnxDft<B> is always at least as big as VecZnxBig<B>) // Alias scratch space (VecZnxDft<B> is always at least as big as VecZnxBig<B>)
let mut buf_big: VecZnxBig<FFT64> = buf_dft.alias_as_vec_znx_big(); let (mut buf_big, scratch) = scratch.tmp_vec_znx_big(&module, 1, ct_size);
// BIG(ct[1] * s) <- IDFT(DFT(ct[1] * s)) (not normalized) // BIG(ct[1] * s) <- IDFT(DFT(ct[1] * s)) (not normalized)
module.vec_znx_idft_tmp_a(&mut buf_big, 0, &mut buf_dft, 0); // Note: Since `vec_znx_idft_tmp_a` takes no argument for generic `Data` a full qualified path seems necessary
<Module<_> as VecZnxDftOps<_, &[u8], _>>::vec_znx_idft_tmp_a(&module, &mut buf_big, 0, &mut buf_dft, 0);
// Creates a plaintext: VecZnx with 1 column // Creates a plaintext: VecZnx with 1 column
let mut m: VecZnx = module.new_vec_znx( let mut m = module.new_vec_znx(
1, // Number of columns 1, // Number of columns
msg_size, // Number of small polynomials msg_size, // Number of small polynomials
); );
@@ -70,10 +68,11 @@ fn main() {
want.iter_mut() want.iter_mut()
.for_each(|x| *x = source.next_u64n(16, 15) as i64); .for_each(|x| *x = source.next_u64n(16, 15) as i64);
m.encode_vec_i64(0, log_base2k, log_scale, &want, 4); m.encode_vec_i64(0, log_base2k, log_scale, &want, 4);
m.normalize(log_base2k, 0, &mut tmp_bytes_norm); let (tmp_bytes_norm, scratch) = scratch.tmp_scalar_slice(n * std::mem::size_of::<i64>());
m.normalize(log_base2k, 0, tmp_bytes_norm);
// m - BIG(ct[1] * s) // m - BIG(ct[1] * s)
module.vec_znx_big_sub_small_a_inplace( module.vec_znx_big_sub_small_b_inplace(
&mut buf_big, &mut buf_big,
0, // Selects the first column of the receiver 0, // Selects the first column of the receiver
&m, &m,
@@ -83,12 +82,9 @@ fn main() {
// Normalizes back to VecZnx // Normalizes back to VecZnx
// ct[0] <- m - BIG(c1 * s) // ct[0] <- m - BIG(c1 * s)
module.vec_znx_big_normalize( module.vec_znx_big_normalize(
log_base2k, log_base2k, &mut ct, 0, // Selects the first column of ct (ct[0])
&mut ct, &buf_big, 0, // Selects the first column of buf_big
0, // Selects the first column of ct (ct[0]) scratch,
&buf_big,
0, // Selects the first column of buf_big
&mut tmp_bytes_norm,
); );
// Add noise to ct[0] // Add noise to ct[0]
@@ -118,14 +114,14 @@ fn main() {
); );
// BIG(c1 * s) = IDFT(DFT(c1 * s)) // BIG(c1 * s) = IDFT(DFT(c1 * s))
module.vec_znx_idft_tmp_a(&mut buf_big, 0, &mut buf_dft, 0); <Module<_> as VecZnxDftOps<_, &[u8], _>>::vec_znx_idft_tmp_a(&module, &mut buf_big, 0, &mut buf_dft, 0);
// BIG(c1 * s) + ct[0] // BIG(c1 * s) + ct[0]
module.vec_znx_big_add_small_inplace(&mut buf_big, 0, &ct, 0); module.vec_znx_big_add_small_inplace(&mut buf_big, 0, &ct, 0);
// m + e <- BIG(ct[1] * s + ct[0]) // m + e <- BIG(ct[1] * s + ct[0])
let mut res: VecZnx = module.new_vec_znx(1, ct_size); let mut res = module.new_vec_znx(1, ct_size);
module.vec_znx_big_normalize(log_base2k, &mut res, 0, &buf_big, 0, &mut tmp_bytes_norm); module.vec_znx_big_normalize(log_base2k, &mut res, 0, &buf_big, 0, scratch);
// have = m * 2^{log_scale} + e // have = m * 2^{log_scale} + e
let mut have: Vec<i64> = vec![i64::default(); n]; let mut have: Vec<i64> = vec![i64::default(); n];
@@ -136,5 +132,7 @@ fn main() {
.enumerate() .enumerate()
.for_each(|(i, (a, b))| { .for_each(|(i, (a, b))| {
println!("{}: {} {}", i, a, (*b as f64) / scale); println!("{}: {} {}", i, a, (*b as f64) / scale);
}) });
module.free();
} }

122
base2k/examples/vmp.rs
View File

@@ -1,78 +1,78 @@
use base2k::{ // use base2k::{
Encoding, FFT64, MatZnxDft, MatZnxDftOps, Module, VecZnx, VecZnxBig, VecZnxBigOps, VecZnxDft, VecZnxDftOps, VecZnxOps, // Encoding, FFT64, MatZnxDft, MatZnxDftOps, Module, VecZnx, VecZnxBig, VecZnxBigOps, VecZnxDft, VecZnxDftOps, VecZnxOps,
ZnxInfos, ZnxLayout, alloc_aligned, // ZnxInfos, ZnxLayout, alloc_aligned,
}; // };
fn main() { fn main() {
let log_n: i32 = 5; // let log_n: i32 = 5;
let n: usize = 1 << log_n; // let n: usize = 1 << log_n;
let module: Module<FFT64> = Module::<FFT64>::new(n); // let module: Module<FFT64> = Module::<FFT64>::new(n);
let log_base2k: usize = 15; // let log_base2k: usize = 15;
let a_cols: usize = 2; // let a_cols: usize = 2;
let a_size: usize = 5; // let a_size: usize = 5;
let log_k: usize = log_base2k * a_size - 5; // let log_k: usize = log_base2k * a_size - 5;
let mat_rows: usize = a_size; // let mat_rows: usize = a_size;
let mat_cols_in: usize = a_cols; // let mat_cols_in: usize = a_cols;
let mat_cols_out: usize = 2; // let mat_cols_out: usize = 2;
let mat_size: usize = a_size + 1; // let mat_size: usize = a_size + 1;
let mut tmp_bytes_vmp: Vec<u8> = alloc_aligned( // let mut tmp_bytes_vmp: Vec<u8> = alloc_aligned(
module.vmp_prepare_row_tmp_bytes(mat_cols_out, mat_size) // module.vmp_prepare_row_tmp_bytes(mat_cols_out, mat_size)
| module.vmp_apply_dft_tmp_bytes( // | module.vmp_apply_dft_tmp_bytes(
a_size, // a_size,
a_size, // a_size,
mat_rows, // mat_rows,
mat_cols_in, // mat_cols_in,
mat_cols_out, // mat_cols_out,
mat_size, // mat_size,
), // ),
); // );
let mut tmp_bytes_dft: Vec<u8> = alloc_aligned(module.bytes_of_vec_znx_dft(mat_cols_out, mat_size)); // let mut tmp_bytes_dft: Vec<u8> = alloc_aligned(module.bytes_of_vec_znx_dft(mat_cols_out, mat_size));
let mut a: VecZnx = module.new_vec_znx(a_cols, a_size); // let mut a: VecZnx = module.new_vec_znx(a_cols, a_size);
(0..a_cols).for_each(|i| { // (0..a_cols).for_each(|i| {
let mut values: Vec<i64> = vec![i64::default(); n]; // let mut values: Vec<i64> = vec![i64::default(); n];
values[1 + i] = (1 << log_base2k) + 1; // values[1 + i] = (1 << log_base2k) + 1;
a.encode_vec_i64(i, log_base2k, log_k, &values, 32); // a.encode_vec_i64(i, log_base2k, log_k, &values, 32);
a.normalize(log_base2k, i, &mut tmp_bytes_vmp); // a.normalize(log_base2k, i, &mut tmp_bytes_vmp);
a.print(n, i); // a.print(n, i);
println!(); // println!();
}); // });
let mut mat_znx_dft: MatZnxDft<FFT64> = module.new_mat_znx_dft(mat_rows, mat_cols_in, mat_cols_out, mat_size); // let mut mat_znx_dft: MatZnxDft<FFT64> = module.new_mat_znx_dft(mat_rows, mat_cols_in, mat_cols_out, mat_size);
(0..a.size()).for_each(|row_i| { // (0..a.size()).for_each(|row_i| {
let mut tmp: VecZnx = module.new_vec_znx(mat_cols_out, mat_size); // let mut tmp: VecZnx = module.new_vec_znx(mat_cols_out, mat_size);
(0..mat_cols_out).for_each(|j| { // (0..mat_cols_out).for_each(|j| {
tmp.at_mut(j, row_i)[1 + j] = 1 as i64; // tmp.at_mut(j, row_i)[1 + j] = 1 as i64;
}); // });
(0..mat_cols_in).for_each(|j| { // (0..mat_cols_in).for_each(|j| {
module.vmp_prepare_row(&mut mat_znx_dft, row_i, j, &tmp, &mut tmp_bytes_vmp); // module.vmp_prepare_row(&mut mat_znx_dft, row_i, j, &tmp, &mut tmp_bytes_vmp);
}) // })
}); // });
let mut c_dft: VecZnxDft<FFT64> = module.new_vec_znx_dft_from_bytes_borrow(mat_cols_out, mat_size, &mut tmp_bytes_dft); // let mut c_dft: VecZnxDft<FFT64> = module.new_vec_znx_dft_from_bytes_borrow(mat_cols_out, mat_size, &mut tmp_bytes_dft);
module.vmp_apply_dft(&mut c_dft, &a, &mat_znx_dft, &mut tmp_bytes_vmp); // module.vmp_apply_dft(&mut c_dft, &a, &mat_znx_dft, &mut tmp_bytes_vmp);
let mut res: VecZnx = module.new_vec_znx(mat_cols_out, a_size); // let mut res: VecZnx = module.new_vec_znx(mat_cols_out, a_size);
let mut c_big: VecZnxBig<FFT64> = c_dft.alias_as_vec_znx_big(); // let mut c_big: VecZnxBig<FFT64> = c_dft.alias_as_vec_znx_big();
(0..mat_cols_out).for_each(|i| { // (0..mat_cols_out).for_each(|i| {
module.vec_znx_idft_tmp_a(&mut c_big, i, &mut c_dft, i); // module.vec_znx_idft_tmp_a(&mut c_big, i, &mut c_dft, i);
module.vec_znx_big_normalize(log_base2k, &mut res, i, &c_big, i, &mut tmp_bytes_vmp); // module.vec_znx_big_normalize(log_base2k, &mut res, i, &c_big, i, &mut tmp_bytes_vmp);
let mut values_res: Vec<i64> = vec![i64::default(); n]; // let mut values_res: Vec<i64> = vec![i64::default(); n];
res.decode_vec_i64(i, log_base2k, log_k, &mut values_res); // res.decode_vec_i64(i, log_base2k, log_k, &mut values_res);
res.print(n, i); // res.print(n, i);
println!(); // println!();
println!("{:?}", values_res); // println!("{:?}", values_res);
println!(); // println!();
}); // });
module.free(); // module.free();
} }

115
base2k/src/lib.rs
View File

@@ -18,17 +18,10 @@ pub mod vec_znx_dft_ops;
pub mod vec_znx_ops; pub mod vec_znx_ops;
pub mod znx_base; pub mod znx_base;
use std::{
any::type_name,
ops::{DerefMut, Sub},
};
pub use encoding::*; pub use encoding::*;
pub use mat_znx_dft::*; pub use mat_znx_dft::*;
pub use mat_znx_dft_ops::*; pub use mat_znx_dft_ops::*;
pub use module::*; pub use module::*;
use rand_core::le;
use rand_distr::num_traits::sign;
pub use sampling::*; pub use sampling::*;
pub use scalar_znx::*; pub use scalar_znx::*;
pub use scalar_znx_dft::*; pub use scalar_znx_dft::*;
@@ -133,6 +126,8 @@ pub fn alloc_aligned<T>(size: usize) -> Vec<T> {
) )
} }
// Scratch implementation below
pub struct ScratchOwned(Vec<u8>); pub struct ScratchOwned(Vec<u8>);
impl ScratchOwned { impl ScratchOwned {
@@ -141,16 +136,16 @@ impl ScratchOwned {
Self(data) Self(data)
} }
pub fn borrow(&mut self) -> &mut ScratchBorr { pub fn borrow(&mut self) -> &mut Scratch {
ScratchBorr::new(&mut self.0) Scratch::new(&mut self.0)
} }
} }
pub struct ScratchBorr { pub struct Scratch {
data: [u8], data: [u8],
} }
impl ScratchBorr { impl Scratch {
fn new(data: &mut [u8]) -> &mut Self { fn new(data: &mut [u8]) -> &mut Self {
unsafe { &mut *(data as *mut [u8] as *mut Self) } unsafe { &mut *(data as *mut [u8] as *mut Self) }
} }
@@ -175,14 +170,14 @@ impl ScratchBorr {
panic!( panic!(
"Attempted to take {} from scratch with {} aligned bytes left", "Attempted to take {} from scratch with {} aligned bytes left",
take_len, take_len,
take_len, aligned_len,
// type_name::<T>(), // type_name::<T>(),
// aligned_len // aligned_len
); );
} }
} }
fn tmp_scalar_slice<T>(&mut self, len: usize) -> (&mut [T], &mut Self) { pub fn tmp_scalar_slice<T>(&mut self, len: usize) -> (&mut [T], &mut Self) {
let (take_slice, rem_slice) = Self::take_slice_aligned(&mut self.data, len * std::mem::size_of::<T>()); let (take_slice, rem_slice) = Self::take_slice_aligned(&mut self.data, len * std::mem::size_of::<T>());
unsafe { unsafe {
@@ -193,7 +188,7 @@ impl ScratchBorr {
} }
} }
fn tmp_vec_znx_dft<B: Backend>( pub fn tmp_vec_znx_dft<B: Backend>(
&mut self, &mut self,
module: &Module<B>, module: &Module<B>,
cols: usize, cols: usize,
@@ -207,103 +202,17 @@ impl ScratchBorr {
) )
} }
fn tmp_vec_znx_big<D: for<'a> From<&'a mut [u8]>, B: Backend>( pub fn tmp_vec_znx_big<B: Backend>(
&mut self, &mut self,
module: &Module<B>, module: &Module<B>,
cols: usize, cols: usize,
size: usize, size: usize,
) -> (VecZnxBig<D, B>, &mut Self) { ) -> (VecZnxBig<&mut [u8], B>, &mut Self) {
let (take_slice, rem_slice) = Self::take_slice_aligned(&mut self.data, bytes_of_vec_znx_big(module, cols, size)); let (take_slice, rem_slice) = Self::take_slice_aligned(&mut self.data, bytes_of_vec_znx_big(module, cols, size));
( (
VecZnxBig::from_data(D::from(take_slice), module.n(), cols, size), VecZnxBig::from_data(take_slice, module.n(), cols, size),
Self::new(rem_slice), Self::new(rem_slice),
) )
} }
} }
// pub struct ScratchBorrowed<'a> {
// data: &'a mut [u8],
// }
// impl<'a> ScratchBorrowed<'a> {
// fn take_slice<T>(&mut self, take_len: usize) -> (&mut [T], ScratchBorrowed<'_>) {
// let ptr = self.data.as_mut_ptr();
// let self_len = self.data.len();
// //TODO(Jay): print the offset sometimes, just to check
// let aligned_offset = ptr.align_offset(DEFAULTALIGN);
// let aligned_len = self_len.saturating_sub(aligned_offset);
// let take_len_bytes = take_len * std::mem::size_of::<T>();
// if let Some(rem_len) = aligned_len.checked_sub(take_len_bytes) {
// unsafe {
// let rem_ptr = ptr.add(aligned_offset).add(take_len_bytes);
// let rem_slice = &mut *std::ptr::slice_from_raw_parts_mut(rem_ptr, rem_len);
// let take_slice = &mut *std::ptr::slice_from_raw_parts_mut(ptr.add(aligned_offset) as *mut T, take_len_bytes);
// return (take_slice, ScratchBorrowed { data: rem_slice });
// }
// } else {
// panic!(
// "Attempted to take {} (={} elements of {}) from scratch with {} aligned bytes left",
// take_len_bytes,
// take_len,
// type_name::<T>(),
// aligned_len
// );
// }
// }
// fn reborrow(&mut self) -> ScratchBorrowed<'a> {
// //(Jay)TODO: `data: &mut *self.data` does not work because liftime of &mut self is different from 'a.
// // But it feels that there should be a simpler impl. than the one below
// Self {
// data: unsafe { &mut *std::ptr::slice_from_raw_parts_mut(self.data.as_mut_ptr(), self.data.len()) },
// }
// }
// fn tmp_vec_znx_dft<B: Backend>(&mut self, module: &Module<B>, cols: usize, size: usize) -> (VecZnxDft<&mut [u8], B>, Self) {
// let (data, re_scratch) = self.take_slice::<u8>(vec_znx_dft::bytes_of_vec_znx_dft(module, cols, size));
// (
// VecZnxDft::from_data(data, module.n(), cols, size),
// re_scratch,
// )
// }
// pub(crate) fn len(&self) -> usize {
// self.data.len()
// }
// }
// pub trait Scratch<D> {
// fn tmp_vec_znx_dft<B: Backend>(&mut self, module: &Module<B>, cols: usize, size: usize) -> (D, &mut Self);
// }
// impl<'a> Scratch<&'a mut [u8]> for ScratchBorr {
// fn tmp_vec_znx_dft<B: Backend>(&mut self, module: &Module<B>, cols: usize, size: usize) -> (&'a mut [u8], &mut Self) {
// let (data, rem_scratch) = self.tmp_scalar_slice(vec_znx_dft::bytes_of_vec_znx_dft(module, cols, size));
// (
// data
// rem_scratch,
// )
// }
// // fn tmp_vec_znx_big<B: Backend>(&mut self, module: &Module<B>, cols: usize, size: usize) -> (VecZnxBig<&mut [u8], B>, Self) {
// // // let (data, re_scratch) = self.take_slice(vec_znx_big::bytes_of_vec_znx_big(module, cols, size));
// // // (
// // // VecZnxBig::from_data(data, module.n(), cols, size),
// // // re_scratch,
// // // )
// // }
// // fn scalar_slice<T>(&mut self, len: usize) -> (&mut [T], Self) {
// // self.take_slice::<T>(len)
// // }
// // fn reborrow(&mut self) -> Self {
// // self.reborrow()
// // }
// }

109
base2k/src/mat_znx_dft_ops.rs
View File

@@ -2,7 +2,7 @@ use crate::ffi::vec_znx_dft::vec_znx_dft_t;
use crate::ffi::vmp; use crate::ffi::vmp;
use crate::znx_base::{ZnxInfos, ZnxView, ZnxViewMut}; use crate::znx_base::{ZnxInfos, ZnxView, ZnxViewMut};
use crate::{ use crate::{
Backend, FFT64, MatZnxDft, MatZnxDftAllocOwned, Module, ScratchBorr, VecZnx, VecZnxBigOps, VecZnxBigScratch, VecZnxDft, Backend, FFT64, MatZnxDft, MatZnxDftAllocOwned, Module, Scratch, VecZnx, VecZnxBigOps, VecZnxBigScratch, VecZnxDft,
VecZnxDftAlloc, VecZnxDftOps, VecZnxDftAlloc, VecZnxDftOps,
}; };
@@ -25,15 +25,6 @@ pub trait MatZnxDftAlloc<B> {
size: usize, size: usize,
bytes: Vec<u8>, bytes: Vec<u8>,
) -> MatZnxDftAllocOwned<B>; ) -> MatZnxDftAllocOwned<B>;
// fn new_mat_znx_dft_from_bytes_borrow(
// &self,
// rows: usize,
// cols_in: usize,
// cols_out: usize,
// size: usize,
// bytes: &mut [u8],
// ) -> MatZnxDft<FFT64>;
} }
pub trait MatZnxDftScratch { pub trait MatZnxDftScratch {
@@ -101,7 +92,7 @@ pub trait MatZnxDftOps<DataMut, Data, B: Backend> {
b_row: usize, b_row: usize,
b_col_in: usize, b_col_in: usize,
a: &VecZnx<Data>, a: &VecZnx<Data>,
scratch: &mut ScratchBorr, scratch: &mut Scratch,
); );
/// Extracts the ith-row of [MatZnxDft] into a [VecZnxBig]. /// Extracts the ith-row of [MatZnxDft] into a [VecZnxBig].
@@ -118,7 +109,7 @@ pub trait MatZnxDftOps<DataMut, Data, B: Backend> {
a: &MatZnxDft<Data, B>, a: &MatZnxDft<Data, B>,
b_row: usize, b_row: usize,
b_col_in: usize, b_col_in: usize,
scratch: &mut ScratchBorr, scratch: &mut Scratch,
); );
/// Prepares the ith-row of [MatZnxDft] from a [VecZnxDft]. /// Prepares the ith-row of [MatZnxDft] from a [VecZnxDft].
@@ -165,7 +156,7 @@ pub trait MatZnxDftOps<DataMut, Data, B: Backend> {
/// * `a`: the left operand [VecZnx] of the vector matrix product. /// * `a`: the left operand [VecZnx] of the vector matrix product.
/// * `b`: the right operand [MatZnxDft] of the vector matrix product. /// * `b`: the right operand [MatZnxDft] of the vector matrix product.
/// * `buf`: scratch space, the size can be obtained with [MatZnxDftOps::vmp_apply_dft_tmp_bytes]. /// * `buf`: scratch space, the size can be obtained with [MatZnxDftOps::vmp_apply_dft_tmp_bytes].
fn vmp_apply_dft(&self, c: &mut VecZnxDft<DataMut, B>, a: &VecZnx<Data>, b: &MatZnxDft<Data, B>, scratch: &mut ScratchBorr); fn vmp_apply_dft(&self, c: &mut VecZnxDft<DataMut, B>, a: &VecZnx<Data>, b: &MatZnxDft<Data, B>, scratch: &mut Scratch);
/// Applies the vector matrix product [VecZnxDft] x [MatZnxDft]. /// Applies the vector matrix product [VecZnxDft] x [MatZnxDft].
/// The size of `buf` is given by [MatZnxDftOps::vmp_apply_dft_to_dft_tmp_bytes]. /// The size of `buf` is given by [MatZnxDftOps::vmp_apply_dft_to_dft_tmp_bytes].
@@ -197,7 +188,7 @@ pub trait MatZnxDftOps<DataMut, Data, B: Backend> {
c: &mut VecZnxDft<DataMut, B>, c: &mut VecZnxDft<DataMut, B>,
a: &VecZnxDft<Data, B>, a: &VecZnxDft<Data, B>,
b: &MatZnxDft<Data, B>, b: &MatZnxDft<Data, B>,
scratch: &mut ScratchBorr, scratch: &mut Scratch,
); );
} }
@@ -274,18 +265,14 @@ impl<B: Backend> MatZnxDftScratch for Module<B> {
} }
} }
impl<DataMut, Data> MatZnxDftOps<DataMut, Data, FFT64> for Module<FFT64> impl MatZnxDftOps<&mut [u8], &[u8], FFT64> for Module<FFT64> {
where
DataMut: AsMut<[u8]> + AsRef<[u8]> + for<'a> From<&'a mut [u8]>,
Data: AsRef<[u8]>,
{
fn vmp_prepare_row( fn vmp_prepare_row(
&self, &self,
b: &mut MatZnxDft<DataMut, FFT64>, b: &mut MatZnxDft<&mut [u8], FFT64>,
b_row: usize, b_row: usize,
b_col_in: usize, b_col_in: usize,
a: &VecZnx<Data>, a: &VecZnx<&[u8]>,
scratch: &mut ScratchBorr, scratch: &mut Scratch,
) { ) {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {
@@ -328,21 +315,19 @@ where
let a_size: usize = a.size(); let a_size: usize = a.size();
// let (tmp_bytes_a_dft, _) = tmp_bytes.split_at_mut(self.bytes_of_vec_znx_dft(cols_out, a_size)); // let (tmp_bytes_a_dft, _) = tmp_bytes.split_at_mut(self.bytes_of_vec_znx_dft(cols_out, a_size));
let (mut a_dft, _) = scratch.tmp_scalar_slice(12); let (mut a_dft, _) = scratch.tmp_vec_znx_dft::<_>(self, cols_out, a_size);
DataMut::from(a_dft);
// let (mut a_dft, _) = scratch.tmp_vec_znx_dft::<DataMut, _>(self, cols_out, a_size);
(0..cols_out).for_each(|i| self.vec_znx_dft(&mut a_dft, i, &a, i)); (0..cols_out).for_each(|i| self.vec_znx_dft(&mut a_dft, i, &a, i));
Self::vmp_prepare_row_dft(&self, b, b_row, b_col_in, &a_dft); Self::vmp_prepare_row_dft(&self, b, b_row, b_col_in, &a_dft.to_ref());
} }
fn vmp_extract_row( fn vmp_extract_row(
&self, &self,
log_base2k: usize, log_base2k: usize,
b: &mut VecZnx<DataMut>, b: &mut VecZnx<&mut [u8]>,
a: &MatZnxDft<Data, FFT64>, a: &MatZnxDft<&[u8], FFT64>,
a_row: usize, a_row: usize,
a_col_in: usize, a_col_in: usize,
mut scratch: &mut ScratchBorr, scratch: &mut Scratch,
) { ) {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {
@@ -386,12 +371,18 @@ where
Self::vmp_extract_row_dft(&self, &mut b_dft, a, a_row, a_col_in); Self::vmp_extract_row_dft(&self, &mut b_dft, a, a_row, a_col_in);
let (mut b_big, scratch) = scratch.tmp_vec_znx_big(self, cols_out, size); let (mut b_big, scratch) = scratch.tmp_vec_znx_big(self, cols_out, size);
(0..cols_out).for_each(|i| { (0..cols_out).for_each(|i| {
<Self as VecZnxDftOps<DataMut, Data, FFT64>>::vec_znx_idft_tmp_a(self, &mut b_big, i, &mut b_dft, i); <Self as VecZnxDftOps<&mut [u8], &[u8], FFT64>>::vec_znx_idft_tmp_a(self, &mut b_big, i, &mut b_dft, i);
self.vec_znx_big_normalize(log_base2k, b, i, &b_big, i, scratch); self.vec_znx_big_normalize(log_base2k, b, i, &b_big, i, scratch);
}); });
} }
fn vmp_prepare_row_dft(&self, b: &mut MatZnxDft<DataMut, FFT64>, b_row: usize, b_col_in: usize, a: &VecZnxDft<Data, FFT64>) { fn vmp_prepare_row_dft(
&self,
b: &mut MatZnxDft<&mut [u8], FFT64>,
b_row: usize,
b_col_in: usize,
a: &VecZnxDft<&[u8], FFT64>,
) {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {
assert_eq!(b.n(), self.n()); assert_eq!(b.n(), self.n());
@@ -436,7 +427,13 @@ where
} }
} }
fn vmp_extract_row_dft(&self, b: &mut VecZnxDft<DataMut, FFT64>, a: &MatZnxDft<Data, FFT64>, a_row: usize, a_col_in: usize) { fn vmp_extract_row_dft(
&self,
b: &mut VecZnxDft<&mut [u8], FFT64>,
a: &MatZnxDft<&[u8], FFT64>,
a_row: usize,
a_col_in: usize,
) {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {
assert_eq!(b.n(), self.n()); assert_eq!(b.n(), self.n());
@@ -482,10 +479,10 @@ where
fn vmp_apply_dft( fn vmp_apply_dft(
&self, &self,
c: &mut VecZnxDft<DataMut, FFT64>, c: &mut VecZnxDft<&mut [u8], FFT64>,
a: &VecZnx<Data>, a: &VecZnx<&[u8]>,
b: &MatZnxDft<Data, FFT64>, b: &MatZnxDft<&[u8], FFT64>,
mut scratch: &mut ScratchBorr, scratch: &mut Scratch,
) { ) {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {
@@ -547,11 +544,12 @@ where
fn vmp_apply_dft_to_dft( fn vmp_apply_dft_to_dft(
&self, &self,
c: &mut VecZnxDft<DataMut, FFT64>, c: &mut VecZnxDft<&mut [u8], FFT64>,
a: &VecZnxDft<Data, FFT64>, a: &VecZnxDft<&[u8], FFT64>,
b: &MatZnxDft<Data, FFT64>, b: &MatZnxDft<&[u8], FFT64>,
mut scratch: &mut ScratchBorr, scratch: &mut Scratch,
) { ) {
{
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {
assert_eq!(c.n(), self.n()); assert_eq!(c.n(), self.n());
@@ -611,6 +609,7 @@ where
) )
} }
} }
}
} }
#[cfg(test)] #[cfg(test)]
@@ -658,27 +657,31 @@ mod tests {
module.vec_znx_dft(&mut a_dft, col_out, &a, col_out); module.vec_znx_dft(&mut a_dft, col_out, &a, col_out);
}); });
// let g = vmpmat_0.to_mut(); module.vmp_prepare_row(
&mut vmpmat_0.to_mut(),
module.vmp_prepare_row(&mut vmpmat_0.to_mut(), row_i, col_in, &a, scratch.borrow()); row_i,
col_in,
&a.to_ref(),
scratch.borrow(),
);
// Checks that prepare(mat_znx_dft, a) = prepare_dft(mat_znx_dft, a_dft) // Checks that prepare(mat_znx_dft, a) = prepare_dft(mat_znx_dft, a_dft)
module.vmp_prepare_row_dft(&mut vmpmat_1, row_i, col_in, &a_dft); module.vmp_prepare_row_dft(&mut vmpmat_1.to_mut(), row_i, col_in, &a_dft.to_ref());
assert_eq!(vmpmat_0.raw(), vmpmat_1.raw()); assert_eq!(vmpmat_0.raw(), vmpmat_1.raw());
// Checks that a_dft = extract_dft(prepare(mat_znx_dft, a), b_dft) // Checks that a_dft = extract_dft(prepare(mat_znx_dft, a), b_dft)
module.vmp_extract_row_dft(&mut b_dft, &vmpmat_0, row_i, col_in); module.vmp_extract_row_dft(&mut b_dft.to_mut(), &vmpmat_0.to_ref(), row_i, col_in);
assert_eq!(a_dft.raw(), b_dft.raw()); assert_eq!(a_dft.raw(), b_dft.raw());
// Checks that a_big = extract(prepare_dft(mat_znx_dft, a_dft), b_big) // Checks that a_big = extract(prepare_dft(mat_znx_dft, a_dft), b_big)
// module.vmp_extract_row( module.vmp_extract_row(
// log_base2k, log_base2k,
// &mut b.to_mut(), &mut b.to_mut(),
// &vmpmat_0.to_ref(), &vmpmat_0.to_ref(),
// row_i, row_i,
// col_in, col_in,
// scratch.borrow(), scratch.borrow(),
// ); );
(0..mat_cols_out).for_each(|col_out| { (0..mat_cols_out).for_each(|col_out| {
module.vec_znx_idft(&mut a_big, col_out, &a_dft, col_out, &mut tmp_bytes); module.vec_znx_idft(&mut a_big, col_out, &a_dft, col_out, &mut tmp_bytes);

15
base2k/src/vec_znx.rs
View File

@@ -217,7 +217,7 @@ pub type VecZnxMut<'a> = VecZnx<&'a mut [u8]>;
pub type VecZnxRef<'a> = VecZnx<&'a [u8]>; pub type VecZnxRef<'a> = VecZnx<&'a [u8]>;
impl VecZnx<Vec<u8>> { impl VecZnx<Vec<u8>> {
pub(crate) fn to_mut(&mut self) -> VecZnx<&mut [u8]> { pub fn to_mut(&mut self) -> VecZnx<&mut [u8]> {
VecZnx { VecZnx {
data: self.data.as_mut_slice(), data: self.data.as_mut_slice(),
n: self.n, n: self.n,
@@ -226,7 +226,7 @@ impl VecZnx<Vec<u8>> {
} }
} }
pub(crate) fn to_ref(&self) -> VecZnx<&[u8]> { pub fn to_ref(&self) -> VecZnx<&[u8]> {
VecZnx { VecZnx {
data: self.data.as_slice(), data: self.data.as_slice(),
n: self.n, n: self.n,
@@ -235,3 +235,14 @@ impl VecZnx<Vec<u8>> {
} }
} }
} }
impl VecZnx<&mut [u8]> {
pub fn to_ref(&self) -> VecZnx<&[u8]> {
VecZnx {
data: &self.data,
n: self.n,
cols: self.cols,
size: self.size,
}
}
}

12
base2k/src/vec_znx_big.rs
View File

@@ -3,7 +3,7 @@ use crate::znx_base::{ZnxInfos, ZnxView};
use crate::{Backend, DataView, DataViewMut, FFT64, Module, alloc_aligned}; use crate::{Backend, DataView, DataViewMut, FFT64, Module, alloc_aligned};
use std::marker::PhantomData; use std::marker::PhantomData;
const VEC_ZNX_BIG_ROWS: usize = 1; // const VEC_ZNX_BIG_ROWS: usize = 1;
/// VecZnxBig is `Backend` dependent, denoted with backend generic `B` /// VecZnxBig is `Backend` dependent, denoted with backend generic `B`
pub struct VecZnxBig<D, B> { pub struct VecZnxBig<D, B> {
@@ -97,7 +97,7 @@ impl<D, B> VecZnxBig<D, B> {
pub type VecZnxBigOwned<B> = VecZnxBig<Vec<u8>, B>; pub type VecZnxBigOwned<B> = VecZnxBig<Vec<u8>, B>;
impl<B> VecZnxBig<Vec<u8>, B> { impl<B> VecZnxBig<Vec<u8>, B> {
pub(crate) fn to_mut(&mut self) -> VecZnxBig<&mut [u8], B> { pub fn to_mut(&mut self) -> VecZnxBig<&mut [u8], B> {
VecZnxBig { VecZnxBig {
data: self.data.as_mut_slice(), data: self.data.as_mut_slice(),
n: self.n, n: self.n,
@@ -107,7 +107,7 @@ impl<B> VecZnxBig<Vec<u8>, B> {
} }
} }
pub(crate) fn to_ref(&self) -> VecZnxBig<&[u8], B> { pub fn to_ref(&self) -> VecZnxBig<&[u8], B> {
VecZnxBig { VecZnxBig {
data: self.data.as_slice(), data: self.data.as_slice(),
n: self.n, n: self.n,
@@ -117,9 +117,3 @@ impl<B> VecZnxBig<Vec<u8>, B> {
} }
} }
} }
// impl VecZnxBig<FFT64> {
// pub fn print(&self, n: usize, col: usize) {
// (0..self.size()).for_each(|i| println!("{}: {:?}", i, &self.at(col, i)[..n]));
// }
// }

9
base2k/src/vec_znx_big_ops.rs
View File

@@ -1,9 +1,6 @@
use crate::ffi::vec_znx; use crate::ffi::vec_znx;
use crate::znx_base::{ZnxInfos, ZnxView, ZnxViewMut}; use crate::znx_base::{ZnxInfos, ZnxView, ZnxViewMut};
use crate::{ use crate::{Backend, FFT64, Module, Scratch, VecZnx, VecZnxBig, VecZnxBigOwned, VecZnxScratch, bytes_of_vec_znx_big};
Backend, DataView, FFT64, Module, ScratchBorr, VecZnx, VecZnxBig, VecZnxBigOwned, VecZnxScratch, assert_alignement,
bytes_of_vec_znx_big,
};
pub trait VecZnxBigAlloc<B> { pub trait VecZnxBigAlloc<B> {
/// Allocates a vector Z[X]/(X^N+1) that stores not normalized values. /// Allocates a vector Z[X]/(X^N+1) that stores not normalized values.
@@ -129,7 +126,7 @@ pub trait VecZnxBigOps<DataMut, Data, B> {
res_col: usize, res_col: usize,
a: &VecZnxBig<Data, B>, a: &VecZnxBig<Data, B>,
a_col: usize, a_col: usize,
scratch: &mut ScratchBorr, scratch: &mut Scratch,
); );
/// Applies the automorphism X^i -> X^ik on `a` and stores the result on `b`. /// Applies the automorphism X^i -> X^ik on `a` and stores the result on `b`.
@@ -503,7 +500,7 @@ where
res_col: usize, res_col: usize,
a: &VecZnxBig<Data, FFT64>, a: &VecZnxBig<Data, FFT64>,
a_col: usize, a_col: usize,
scratch: &mut ScratchBorr, scratch: &mut Scratch,
) { ) {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
{ {

80
base2k/src/vec_znx_dft.rs
View File

@@ -4,7 +4,7 @@ use crate::ffi::vec_znx_dft;
use crate::znx_base::ZnxInfos; use crate::znx_base::ZnxInfos;
use crate::{Backend, DataView, DataViewMut, FFT64, Module, ZnxView, alloc_aligned}; use crate::{Backend, DataView, DataViewMut, FFT64, Module, ZnxView, alloc_aligned};
const VEC_ZNX_DFT_ROWS: usize = 1; // const VEC_ZNX_DFT_ROWS: usize = 1;
// VecZnxDft is `Backend` dependent denoted with generic `B` // VecZnxDft is `Backend` dependent denoted with generic `B`
pub struct VecZnxDft<D, B> { pub struct VecZnxDft<D, B> {
@@ -97,52 +97,36 @@ impl<D, B> VecZnxDft<D, B> {
} }
} }
// impl<B: Backend> ZnxAlloc<B> for VecZnxDft<B> { impl<B> VecZnxDft<Vec<u8>, B> {
// type Scalar = u8; pub fn to_mut(&mut self) -> VecZnxDft<&mut [u8], B> {
VecZnxDft {
data: self.data.as_mut_slice(),
n: self.n,
cols: self.cols,
size: self.size,
_phantom: PhantomData,
}
}
// fn from_bytes_borrow(module: &Module<B>, _rows: usize, cols: usize, size: usize, bytes: &mut [u8]) -> Self { pub fn to_ref(&self) -> VecZnxDft<&[u8], B> {
// debug_assert_eq!(bytes.len(), Self::bytes_of(module, _rows, cols, size)); VecZnxDft {
// Self { data: self.data.as_slice(),
// inner: ZnxBase::from_bytes_borrow(module.n(), VEC_ZNX_DFT_ROWS, cols, size, bytes), n: self.n,
// _marker: PhantomData, cols: self.cols,
// } size: self.size,
// } _phantom: PhantomData,
}
}
}
// fn bytes_of(module: &Module<B>, _rows: usize, cols: usize, size: usize) -> usize { impl<B> VecZnxDft<&mut [u8], B> {
// debug_assert_eq!( pub fn to_ref(&self) -> VecZnxDft<&[u8], B> {
// _rows, VEC_ZNX_DFT_ROWS, VecZnxDft {
// "rows != {} not supported for VecZnxDft", data: &self.data,
// VEC_ZNX_DFT_ROWS n: self.n,
// ); cols: self.cols,
// unsafe { vec_znx_dft::bytes_of_vec_znx_dft(module.ptr, size as u64) as usize * cols } size: self.size,
// } _phantom: PhantomData,
// } }
}
// impl VecZnxDft<FFT64> { }
// pub fn print(&self, n: usize, col: usize) {
// (0..self.size()).for_each(|i| println!("{}: {:?}", i, &self.at(col, i)[..n]));
// }
// }
// impl<B: Backend> VecZnxDft<B> {
// /// Cast a [VecZnxDft] into a [VecZnxBig].
// /// The returned [VecZnxBig] shares the backing array
// /// with the original [VecZnxDft].
// pub fn alias_as_vec_znx_big(&mut self) -> VecZnxBig<B> {
// assert!(
// self.data().len() == 0,
// "cannot alias VecZnxDft into VecZnxBig if it owns the data"
// );
// VecZnxBig::<B> {
// inner: ZnxBase {
// data: Vec::new(),
// ptr: self.ptr(),
// n: self.n(),
// rows: self.rows(),
// cols: self.cols(),
// size: self.size(),
// },
// _marker: PhantomData,
// }
// }
// }

13
base2k/src/vec_znx_dft_ops.rs
View File

@@ -22,19 +22,6 @@ pub trait VecZnxDftAlloc<B> {
/// If `bytes.len()` < [Module::bytes_of_vec_znx_dft]. /// If `bytes.len()` < [Module::bytes_of_vec_znx_dft].
fn new_vec_znx_dft_from_bytes(&self, cols: usize, size: usize, bytes: Vec<u8>) -> VecZnxDftOwned<B>; fn new_vec_znx_dft_from_bytes(&self, cols: usize, size: usize, bytes: Vec<u8>) -> VecZnxDftOwned<B>;
// /// Returns a new [VecZnxDft] with the provided bytes array as backing array.
// ///
// /// Behavior: the backing array is only borrowed.
// ///
// /// # Arguments
// ///
// /// * `cols`: the number of cols of the [VecZnxDft].
// /// * `bytes`: a byte array of size at least [Module::bytes_of_vec_znx_dft].
// ///
// /// # Panics
// /// If `bytes.len()` < [Module::bytes_of_vec_znx_dft].
// fn new_vec_znx_dft_from_bytes_borrow(&self, cols: usize, size: usize, bytes: &mut [u8]) -> VecZnxDft<B>;
/// Returns a new [VecZnxDft] with the provided bytes array as backing array. /// Returns a new [VecZnxDft] with the provided bytes array as backing array.
/// ///
/// # Arguments /// # Arguments

14
base2k/src/vec_znx_ops.rs
View File

@@ -23,19 +23,6 @@ pub trait VecZnxAlloc {
/// Requires the slice of bytes to be equal to [VecZnxOps::bytes_of_vec_znx]. /// Requires the slice of bytes to be equal to [VecZnxOps::bytes_of_vec_znx].
fn new_vec_znx_from_bytes(&self, cols: usize, size: usize, bytes: Vec<u8>) -> VecZnxOwned; fn new_vec_znx_from_bytes(&self, cols: usize, size: usize, bytes: Vec<u8>) -> VecZnxOwned;
// /// Instantiates a new [VecZnx] from a slice of bytes.
// /// The returned [VecZnx] does take ownership of the slice of bytes.
// ///
// /// # Arguments
// ///
// /// * `cols`: the number of polynomials.
// /// * `size`: the number small polynomials per column.
// ///
// /// # Panic
// /// Requires the slice of bytes to be equal to [VecZnxOps::bytes_of_vec_znx].
// fn new_vec_znx_from_bytes_borrow(&self, cols: usize, size: usize, tmp_bytes: &mut [u8]) -> VecZnx;
// (Jay)TODO
/// Returns the number of bytes necessary to allocate /// Returns the number of bytes necessary to allocate
/// a new [VecZnx] through [VecZnxOps::new_vec_znx_from_bytes] /// a new [VecZnx] through [VecZnxOps::new_vec_znx_from_bytes]
/// or [VecZnxOps::new_vec_znx_from_bytes_borrow]. /// or [VecZnxOps::new_vec_znx_from_bytes_borrow].
@@ -140,7 +127,6 @@ pub trait VecZnxScratch {
} }
impl<B: Backend> VecZnxAlloc for Module<B> { impl<B: Backend> VecZnxAlloc for Module<B> {
//(Jay)TODO: One must define the Scalar generic param here.
fn new_vec_znx(&self, cols: usize, size: usize) -> VecZnxOwned { fn new_vec_znx(&self, cols: usize, size: usize) -> VecZnxOwned {
VecZnxOwned::new::<i64>(self.n(), cols, size) VecZnxOwned::new::<i64>(self.n(), cols, size)
} }

30
base2k/src/znx_base.rs
View File

@@ -1,4 +1,5 @@
use itertools::izip; use itertools::izip;
use rand_distr::num_traits::Zero;
use std::cmp::min; use std::cmp::min;
pub trait ZnxInfos { pub trait ZnxInfos {
@@ -157,7 +158,7 @@ pub fn switch_degree<S: Copy, DMut: ZnxViewMut<Scalar = S> + ZnxZero, D: ZnxView
use std::ops::{Add, AddAssign, Div, Mul, Neg, Shl, Shr, Sub}; use std::ops::{Add, AddAssign, Div, Mul, Neg, Shl, Shr, Sub};
use crate::{ScratchBorr, cast_mut}; use crate::Scratch;
pub trait Integer: pub trait Integer:
Copy Copy
+ Default + Default
@@ -183,32 +184,15 @@ impl Integer for i128 {
const BITS: u32 = 128; const BITS: u32 = 128;
} }
// (Jay)TODO: implement rsh for VecZnx, VecZnxBig //(Jay)Note: `rsh` impl. ignores the column
// pub trait ZnxRsh: ZnxZero { pub fn rsh<V: ZnxZero>(k: usize, log_base2k: usize, a: &mut V, _a_col: usize, scratch: &mut Scratch)
// fn rsh(&mut self, k: usize, log_base2k: usize, col: usize, carry: &mut [u8]) {
// rsh(k, log_base2k, self, col, carry)
// }
// }
pub fn rsh<V: ZnxZero>(k: usize, log_base2k: usize, a: &mut V, a_col: usize, scratch: &mut ScratchBorr)
where where
V::Scalar: From<usize> + Integer, V::Scalar: From<usize> + Integer + Zero,
{ {
let n: usize = a.n(); let n: usize = a.n();
let size: usize = a.size(); let _size: usize = a.size();
let cols: usize = a.cols(); let cols: usize = a.cols();
// #[cfg(debug_assertions)]
// {
// assert!(
// tmp_bytes.len() >= rsh_tmp_bytes::<V::Scalar>(n),
// "invalid carry: carry.len()/size_ofSelf::Scalar={} < rsh_tmp_bytes({}, {})",
// tmp_bytes.len() / size_of::<V::Scalar>(),
// n,
// size,
// );
// assert_alignement(tmp_bytes.as_ptr());
// }
let size: usize = a.size(); let size: usize = a.size();
let steps: usize = k / log_base2k; let steps: usize = k / log_base2k;
@@ -240,7 +224,7 @@ where
*xi = (*xi - *ci) >> k_rem_t; *xi = (*xi - *ci) >> k_rem_t;
}); });
}); });
//TODO: ZERO CARRYcarry carry.iter_mut().for_each(|r| *r = V::Scalar::zero());
}) })
} }
} }