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Dev serialization (#64)

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* Added compressed serialization for GLWECiphertext + Ciphertext decompression

* Added compressed serialization for GGLWECiphertext & GLWESwitchingkey

* generalized automorphism test

* Removed ops on scalar_znx, replaced by as_vec_znx/as_vec_znx_mut and then call op on vec_znx

* Added tests for automorphism key encryption

* Added tensorkey compressed

* added ggsw compressed
This commit is contained in:
Jean-Philippe Bossuat
2025-08-12 17:43:28 +02:00
committed by GitHub
parent 4c59733566
commit 9aa4b1f1e2
68 changed files with 3430 additions and 1695 deletions
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187
core/src/gglwe/automorphism_key.rs
View File

@@ -1,187 +0,0 @@
use backend::hal::{
api::{MatZnxAlloc, MatZnxAllocBytes},
layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, Scratch, VmpPMat, WriterTo},
};
use crate::{GGLWEExecLayoutFamily, GLWECiphertext, GLWESwitchingKey, GLWESwitchingKeyExec, Infos};
#[derive(PartialEq, Eq)]
pub struct AutomorphismKey<D: Data> {
pub(crate) key: GLWESwitchingKey<D>,
pub(crate) p: i64,
}
impl AutomorphismKey<Vec<u8>> {
pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: MatZnxAlloc,
{
AutomorphismKey {
key: GLWESwitchingKey::alloc(module, basek, k, rows, digits, rank, rank),
p: 0,
}
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
GLWESwitchingKey::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, rank, rank)
}
}
impl<D: Data> Infos for AutomorphismKey<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data> AutomorphismKey<D> {
pub fn p(&self) -> i64 {
self.p
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn rank(&self) -> usize {
self.key.rank()
}
pub fn rank_in(&self) -> usize {
self.key.rank_in()
}
pub fn rank_out(&self) -> usize {
self.key.rank_out()
}
}
impl<D: DataRef> AutomorphismKey<D> {
pub fn at(&self, row: usize, col: usize) -> GLWECiphertext<&[u8]> {
self.key.at(row, col)
}
}
impl<D: DataMut> AutomorphismKey<D> {
pub fn at_mut(&mut self, row: usize, col: usize) -> GLWECiphertext<&mut [u8]> {
self.key.at_mut(row, col)
}
}
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
impl<D: DataMut> ReaderFrom for AutomorphismKey<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.p = reader.read_u64::<LittleEndian>()? as i64;
self.key.read_from(reader)
}
}
impl<D: DataRef> WriterTo for AutomorphismKey<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.p as u64)?;
self.key.write_to(writer)
}
}
#[derive(PartialEq, Eq)]
pub struct AutomorphismKeyExec<D: Data, B: Backend> {
pub(crate) key: GLWESwitchingKeyExec<D, B>,
pub(crate) p: i64,
}
impl<B: Backend> AutomorphismKeyExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
AutomorphismKeyExec::<Vec<u8>, B> {
key: GLWESwitchingKeyExec::alloc(module, basek, k, rows, digits, rank, rank),
p: 0,
}
}
pub fn bytes_of(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
GLWESwitchingKeyExec::<Vec<u8>, B>::bytes_of(module, basek, k, rows, digits, rank, rank)
}
pub fn from<DataOther: DataRef>(module: &Module<B>, other: &AutomorphismKey<DataOther>, scratch: &mut Scratch<B>) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let mut atk_exec: AutomorphismKeyExec<Vec<u8>, B> = Self::alloc(
module,
other.basek(),
other.k(),
other.rows(),
other.digits(),
other.rank(),
);
atk_exec.prepare(module, other, scratch);
atk_exec
}
}
impl<D: DataMut, B: Backend> AutomorphismKeyExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &AutomorphismKey<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
self.key.prepare(module, &other.key, scratch);
self.p = other.p;
}
}
impl<D: Data, B: Backend> Infos for AutomorphismKeyExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
&self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data, B: Backend> AutomorphismKeyExec<D, B> {
pub fn p(&self) -> i64 {
self.p
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn rank(&self) -> usize {
self.key.rank()
}
pub fn rank_in(&self) -> usize {
self.key.rank_in()
}
pub fn rank_out(&self) -> usize {
self.key.rank_out()
}
}

378
core/src/gglwe/encryption.rs
View File

@@ -1,7 +1,7 @@
use backend::hal::{
api::{
ScalarZnxAllocBytes, ScalarZnxAutomorphism, ScratchAvailable, SvpApply, TakeScalarZnx, TakeVecZnx, TakeVecZnxBig,
TakeVecZnxDft, VecZnxAddScalarInplace, VecZnxAllocBytes, VecZnxBigAllocBytes, VecZnxDftToVecZnxBigTmpA,
ScalarZnxAllocBytes, ScratchAvailable, SvpApply, TakeScalarZnx, TakeVecZnx, TakeVecZnxBig, TakeVecZnxDft,
VecZnxAddScalarInplace, VecZnxAllocBytes, VecZnxAutomorphism, VecZnxBigAllocBytes, VecZnxDftToVecZnxBigTmpA,
VecZnxNormalizeInplace, VecZnxNormalizeTmpBytes, VecZnxSwithcDegree, ZnxZero,
},
layouts::{Backend, DataMut, DataRef, Module, ScalarZnx, Scratch},
@@ -9,8 +9,10 @@ use backend::hal::{
use sampling::source::Source;
use crate::{
AutomorphismKey, GGLWECiphertext, GLWECiphertext, GLWEDecryptFamily, GLWEEncryptSkFamily, GLWEPlaintext, GLWESecret,
GLWESecretExec, GLWESecretFamily, GLWESwitchingKey, GLWETensorKey, Infos, TakeGLWEPt, TakeGLWESecret, TakeGLWESecretExec,
AutomorphismKey, AutomorphismKeyCompressed, GGLWECiphertext, GGLWECiphertextCompressed, GLWECiphertext, GLWEDecryptFamily,
GLWEEncryptSkFamily, GLWEPlaintext, GLWESecret, GLWESecretExec, GLWESecretFamily, GLWESwitchingKey,
GLWESwitchingKeyCompressed, GLWETensorKey, GLWETensorKeyCompressed, Infos, TakeGLWEPt, TakeGLWESecret, TakeGLWESecretExec,
encrypt_sk_internal,
};
pub trait GGLWEEncryptSkFamily<B: Backend> = GLWEEncryptSkFamily<B> + GLWESecretFamily<B>;
@@ -122,6 +124,112 @@ impl<DataSelf: DataMut> GGLWECiphertext<DataSelf> {
}
}
impl GGLWECiphertextCompressed<Vec<u8>> {
pub fn encrypt_sk_scratch_space<B: Backend>(module: &Module<B>, basek: usize, k: usize) -> usize
where
Module<B>: GLWESwitchingKeyEncryptSkFamily<B> + VecZnxAllocBytes,
{
GGLWECiphertext::encrypt_sk_scratch_space(module, basek, k)
}
}
impl<D: DataMut> GGLWECiphertextCompressed<D> {
pub fn encrypt_sk<DataPt: DataRef, DataSk: DataRef, B: Backend>(
&mut self,
module: &Module<B>,
pt: &ScalarZnx<DataPt>,
sk: &GLWESecretExec<DataSk, B>,
seed: [u8; 32],
source_xe: &mut Source,
sigma: f64,
scratch: &mut Scratch<B>,
) where
Module<B>: GGLWEEncryptSkFamily<B> + VecZnxAllocBytes + VecZnxAddScalarInplace,
Scratch<B>: TakeVecZnxDft<B> + ScratchAvailable + TakeVecZnx<B>,
{
#[cfg(debug_assertions)]
{
use backend::hal::api::ZnxInfos;
assert_eq!(
self.rank_in(),
pt.cols(),
"self.rank_in(): {} != pt.cols(): {}",
self.rank_in(),
pt.cols()
);
assert_eq!(
self.rank_out(),
sk.rank(),
"self.rank_out(): {} != sk.rank(): {}",
self.rank_out(),
sk.rank()
);
assert_eq!(self.n(), module.n());
assert_eq!(sk.n(), module.n());
assert_eq!(pt.n(), module.n());
assert!(
scratch.available() >= GGLWECiphertextCompressed::encrypt_sk_scratch_space(module, self.basek(), self.k()),
"scratch.available: {} < GGLWECiphertext::encrypt_sk_scratch_space(module, self.rank()={}, self.size()={}): {}",
scratch.available(),
self.rank(),
self.size(),
GGLWECiphertextCompressed::encrypt_sk_scratch_space(module, self.basek(), self.k())
);
assert!(
self.rows() * self.digits() * self.basek() <= self.k(),
"self.rows() : {} * self.digits() : {} * self.basek() : {} = {} >= self.k() = {}",
self.rows(),
self.digits(),
self.basek(),
self.rows() * self.digits() * self.basek(),
self.k()
);
}
let rows: usize = self.rows();
let digits: usize = self.digits();
let basek: usize = self.basek();
let k: usize = self.k();
let rank_in: usize = self.rank_in();
let mut source_xa = Source::new(seed);
let (mut tmp_pt, scrach_1) = scratch.take_glwe_pt(module, basek, k);
(0..rank_in).for_each(|col_i| {
(0..rows).for_each(|row_i| {
// Adds the scalar_znx_pt to the i-th limb of the vec_znx_pt
tmp_pt.data.zero(); // zeroes for next iteration
module.vec_znx_add_scalar_inplace(
&mut tmp_pt.data,
0,
(digits - 1) + row_i * digits,
pt,
col_i,
);
module.vec_znx_normalize_inplace(basek, &mut tmp_pt.data, 0, scrach_1);
let (seed, mut source_xa_tmp) = source_xa.branch();
self.seed[col_i * rows + row_i] = seed;
encrypt_sk_internal(
module,
self.basek(),
self.k(),
&mut self.at_mut(row_i, col_i).data,
true,
Some((&tmp_pt, 0)),
sk,
&mut source_xa_tmp,
source_xe,
sigma,
scrach_1,
);
});
});
}
}
pub trait GLWESwitchingKeyEncryptSkFamily<B: Backend> = GGLWEEncryptSkFamily<B>;
impl GLWESwitchingKey<Vec<u8>> {
@@ -197,14 +305,19 @@ impl<DataSelf: DataMut> GLWESwitchingKey<DataSelf> {
let (mut sk_in_tmp, scratch1) = scratch.take_scalar_znx(module, sk_in.rank());
(0..sk_in.rank()).for_each(|i| {
module.vec_znx_switch_degree(&mut sk_in_tmp, i, &sk_in.data, i);
module.vec_znx_switch_degree(
&mut sk_in_tmp.as_vec_znx_mut(),
i,
&sk_in.data.as_vec_znx(),
i,
);
});
let (mut sk_out_tmp, scratch2) = scratch1.take_glwe_secret_exec(module, sk_out.rank());
{
let (mut tmp, _) = scratch2.take_scalar_znx(module, 1);
(0..sk_out.rank()).for_each(|i| {
module.vec_znx_switch_degree(&mut tmp, 0, &sk_out.data, i);
module.vec_znx_switch_degree(&mut tmp.as_vec_znx_mut(), 0, &sk_out.data.as_vec_znx(), i);
module.svp_prepare(&mut sk_out_tmp.data, i, &tmp, 0);
});
}
@@ -223,6 +336,100 @@ impl<DataSelf: DataMut> GLWESwitchingKey<DataSelf> {
}
}
impl GLWESwitchingKeyCompressed<Vec<u8>> {
pub fn encrypt_sk_scratch_space<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
rank_in: usize,
rank_out: usize,
) -> usize
where
Module<B>: GLWESwitchingKeyEncryptSkFamily<B> + ScalarZnxAllocBytes + VecZnxAllocBytes,
{
(GGLWECiphertext::encrypt_sk_scratch_space(module, basek, k) | module.scalar_znx_alloc_bytes(1))
+ module.scalar_znx_alloc_bytes(rank_in)
+ GLWESecretExec::bytes_of(module, rank_out)
}
}
impl<DataSelf: DataMut> GLWESwitchingKeyCompressed<DataSelf> {
pub fn encrypt_sk<DataSkIn: DataRef, DataSkOut: DataRef, B: Backend>(
&mut self,
module: &Module<B>,
sk_in: &GLWESecret<DataSkIn>,
sk_out: &GLWESecret<DataSkOut>,
seed_xa: [u8; 32],
source_xe: &mut Source,
sigma: f64,
scratch: &mut Scratch<B>,
) where
Module<B>: GLWESwitchingKeyEncryptSkFamily<B>
+ ScalarZnxAllocBytes
+ VecZnxSwithcDegree
+ VecZnxAllocBytes
+ VecZnxAddScalarInplace,
Scratch<B>:
ScratchAvailable + TakeScalarZnx<B> + TakeVecZnxDft<B> + TakeGLWESecretExec<B> + ScratchAvailable + TakeVecZnx<B>,
{
#[cfg(debug_assertions)]
{
assert!(sk_in.n() <= module.n());
assert!(sk_out.n() <= module.n());
assert!(
scratch.available()
>= GLWESwitchingKey::encrypt_sk_scratch_space(
module,
self.basek(),
self.k(),
self.rank_in(),
self.rank_out()
),
"scratch.available()={} < GLWESwitchingKey::encrypt_sk_scratch_space={}",
scratch.available(),
GLWESwitchingKey::encrypt_sk_scratch_space(
module,
self.basek(),
self.k(),
self.rank_in(),
self.rank_out()
)
)
}
let (mut sk_in_tmp, scratch1) = scratch.take_scalar_znx(module, sk_in.rank());
(0..sk_in.rank()).for_each(|i| {
module.vec_znx_switch_degree(
&mut sk_in_tmp.as_vec_znx_mut(),
i,
&sk_in.data.as_vec_znx(),
i,
);
});
let (mut sk_out_tmp, scratch2) = scratch1.take_glwe_secret_exec(module, sk_out.rank());
{
let (mut tmp, _) = scratch2.take_scalar_znx(module, 1);
(0..sk_out.rank()).for_each(|i| {
module.vec_znx_switch_degree(&mut tmp.as_vec_znx_mut(), 0, &sk_out.data.as_vec_znx(), i);
module.svp_prepare(&mut sk_out_tmp.data, i, &tmp, 0);
});
}
self.key.encrypt_sk(
module,
&sk_in_tmp,
&sk_out_tmp,
seed_xa,
source_xe,
sigma,
scratch2,
);
self.sk_in_n = sk_in.n();
self.sk_out_n = sk_out.n();
}
}
pub trait AutomorphismKeyEncryptSkFamily<B: Backend> = GGLWEEncryptSkFamily<B>;
impl AutomorphismKey<Vec<u8>> {
@@ -250,9 +457,9 @@ impl<DataSelf: DataMut> AutomorphismKey<DataSelf> {
scratch: &mut Scratch<B>,
) where
Module<B>: AutomorphismKeyEncryptSkFamily<B>
+ ScalarZnxAutomorphism
+ ScalarZnxAllocBytes
+ VecZnxAllocBytes
+ VecZnxAutomorphism
+ VecZnxSwithcDegree
+ VecZnxAddScalarInplace,
Scratch<B>: ScratchAvailable + TakeScalarZnx<B> + TakeVecZnxDft<B> + TakeGLWESecretExec<B> + TakeVecZnx<B>,
@@ -277,11 +484,11 @@ impl<DataSelf: DataMut> AutomorphismKey<DataSelf> {
{
(0..self.rank()).for_each(|i| {
module.scalar_znx_automorphism(
module.vec_znx_automorphism(
module.galois_element_inv(p),
&mut sk_out.data,
&mut sk_out.data.as_vec_znx_mut(),
i,
&sk.data,
&sk.data.as_vec_znx(),
i,
);
});
@@ -294,6 +501,72 @@ impl<DataSelf: DataMut> AutomorphismKey<DataSelf> {
}
}
impl AutomorphismKeyCompressed<Vec<u8>> {
pub fn encrypt_sk_scratch_space<B: Backend>(module: &Module<B>, basek: usize, k: usize, rank: usize) -> usize
where
Module<B>: AutomorphismKeyEncryptSkFamily<B> + ScalarZnxAllocBytes + VecZnxAllocBytes,
{
GLWESwitchingKeyCompressed::encrypt_sk_scratch_space(module, basek, k, rank, rank) + GLWESecret::bytes_of(module, rank)
}
}
impl<DataSelf: DataMut> AutomorphismKeyCompressed<DataSelf> {
pub fn encrypt_sk<DataSk: DataRef, B: Backend>(
&mut self,
module: &Module<B>,
p: i64,
sk: &GLWESecret<DataSk>,
seed_xa: [u8; 32],
source_xe: &mut Source,
sigma: f64,
scratch: &mut Scratch<B>,
) where
Module<B>: AutomorphismKeyEncryptSkFamily<B>
+ ScalarZnxAllocBytes
+ VecZnxAllocBytes
+ VecZnxSwithcDegree
+ VecZnxAutomorphism
+ VecZnxAddScalarInplace,
Scratch<B>: ScratchAvailable + TakeScalarZnx<B> + TakeVecZnxDft<B> + TakeGLWESecretExec<B> + TakeVecZnx<B>,
{
#[cfg(debug_assertions)]
{
assert_eq!(self.n(), module.n());
assert_eq!(sk.n(), module.n());
assert_eq!(self.rank_out(), self.rank_in());
assert_eq!(sk.rank(), self.rank());
assert!(
scratch.available()
>= AutomorphismKeyCompressed::encrypt_sk_scratch_space(module, self.basek(), self.k(), self.rank()),
"scratch.available(): {} < AutomorphismKey::encrypt_sk_scratch_space(module, self.rank()={}, self.size()={}): {}",
scratch.available(),
self.rank(),
self.size(),
AutomorphismKeyCompressed::encrypt_sk_scratch_space(module, self.basek(), self.k(), self.rank())
)
}
let (mut sk_out, scratch_1) = scratch.take_glwe_secret(module, sk.rank());
{
(0..self.rank()).for_each(|i| {
module.vec_znx_automorphism(
module.galois_element_inv(p),
&mut sk_out.data.as_vec_znx_mut(),
i,
&sk.data.as_vec_znx(),
i,
);
});
}
self.key
.encrypt_sk(module, &sk, &sk_out, seed_xa, source_xe, sigma, scratch_1);
self.p = p;
}
}
pub trait GLWETensorKeyEncryptSkFamily<B: Backend> =
GGLWEEncryptSkFamily<B> + VecZnxBigAllocBytes + VecZnxDftToVecZnxBigTmpA<B> + SvpApply<B>;
@@ -344,7 +617,7 @@ impl<DataSelf: DataMut> GLWETensorKey<DataSelf> {
let (mut sk_dft, scratch2) = scratch1.take_vec_znx_dft(module, rank, 1);
(0..rank).for_each(|i| {
module.vec_znx_dft_from_vec_znx(1, 0, &mut sk_dft, i, &sk.data, i);
module.vec_znx_dft_from_vec_znx(1, 0, &mut sk_dft, i, &sk.data.as_vec_znx(), i);
});
let (mut sk_ij_big, scratch3) = scratch2.take_vec_znx_big(module, 1, 1);
@@ -356,7 +629,14 @@ impl<DataSelf: DataMut> GLWETensorKey<DataSelf> {
module.svp_apply(&mut sk_ij_dft, 0, &sk_dft_prep.data, j, &sk_dft, i);
module.vec_znx_dft_to_vec_znx_big_tmp_a(&mut sk_ij_big, 0, &mut sk_ij_dft, 0);
module.vec_znx_big_normalize(self.basek(), &mut sk_ij.data, 0, &sk_ij_big, 0, scratch5);
module.vec_znx_big_normalize(
self.basek(),
&mut sk_ij.data.as_vec_znx_mut(),
0,
&sk_ij_big,
0,
scratch5,
);
self.at_mut(i, j)
.encrypt_sk(module, &sk_ij, sk, source_xa, source_xe, sigma, scratch5);
@@ -364,3 +644,77 @@ impl<DataSelf: DataMut> GLWETensorKey<DataSelf> {
})
}
}
impl GLWETensorKeyCompressed<Vec<u8>> {
pub fn encrypt_sk_scratch_space<B: Backend>(module: &Module<B>, basek: usize, k: usize, rank: usize) -> usize
where
Module<B>: GLWETensorKeyEncryptSkFamily<B> + ScalarZnxAllocBytes + VecZnxAllocBytes,
{
GLWETensorKey::encrypt_sk_scratch_space(module, basek, k, rank)
}
}
impl<DataSelf: DataMut> GLWETensorKeyCompressed<DataSelf> {
pub fn encrypt_sk<DataSk: DataRef, B: Backend>(
&mut self,
module: &Module<B>,
sk: &GLWESecret<DataSk>,
seed_xa: [u8; 32],
source_xe: &mut Source,
sigma: f64,
scratch: &mut Scratch<B>,
) where
Module<B>: GLWETensorKeyEncryptSkFamily<B>
+ ScalarZnxAllocBytes
+ VecZnxSwithcDegree
+ VecZnxAllocBytes
+ VecZnxAddScalarInplace,
Scratch<B>:
ScratchAvailable + TakeVecZnxDft<B> + TakeVecZnxBig<B> + TakeGLWESecretExec<B> + TakeScalarZnx<B> + TakeVecZnx<B>,
{
#[cfg(debug_assertions)]
{
assert_eq!(self.rank(), sk.rank());
assert_eq!(self.n(), module.n());
assert_eq!(sk.n(), module.n());
}
let rank: usize = self.rank();
let (mut sk_dft_prep, scratch1) = scratch.take_glwe_secret_exec(module, rank);
sk_dft_prep.prepare(module, &sk);
let (mut sk_dft, scratch2) = scratch1.take_vec_znx_dft(module, rank, 1);
(0..rank).for_each(|i| {
module.vec_znx_dft_from_vec_znx(1, 0, &mut sk_dft, i, &sk.data.as_vec_znx(), i);
});
let (mut sk_ij_big, scratch3) = scratch2.take_vec_znx_big(module, 1, 1);
let (mut sk_ij, scratch4) = scratch3.take_glwe_secret(module, 1);
let (mut sk_ij_dft, scratch5) = scratch4.take_vec_znx_dft(module, 1, 1);
let mut source_xa: Source = Source::new(seed_xa);
(0..rank).for_each(|i| {
(i..rank).for_each(|j| {
module.svp_apply(&mut sk_ij_dft, 0, &sk_dft_prep.data, j, &sk_dft, i);
module.vec_znx_dft_to_vec_znx_big_tmp_a(&mut sk_ij_big, 0, &mut sk_ij_dft, 0);
module.vec_znx_big_normalize(
self.basek(),
&mut sk_ij.data.as_vec_znx_mut(),
0,
&sk_ij_big,
0,
scratch5,
);
let (seed_xa_tmp, _) = source_xa.branch();
self.at_mut(i, j)
.encrypt_sk(module, &sk_ij, sk, seed_xa_tmp, source_xe, sigma, scratch5);
});
})
}
}

227
core/src/gglwe/keyswitch_key.rs
View File

@@ -1,227 +0,0 @@
use backend::hal::{
api::{MatZnxAlloc, MatZnxAllocBytes},
layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, Scratch, VmpPMat, WriterTo},
};
use crate::{GGLWECiphertext, GGLWECiphertextExec, GGLWEExecLayoutFamily, GLWECiphertext, Infos};
#[derive(PartialEq, Eq)]
pub struct GLWESwitchingKey<D: Data> {
pub(crate) key: GGLWECiphertext<D>,
pub(crate) sk_in_n: usize, // Degree of sk_in
pub(crate) sk_out_n: usize, // Degree of sk_out
}
impl GLWESwitchingKey<Vec<u8>> {
pub fn alloc<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> Self
where
Module<B>: MatZnxAlloc,
{
GLWESwitchingKey {
key: GGLWECiphertext::alloc(module, basek, k, rows, digits, rank_in, rank_out),
sk_in_n: 0,
sk_out_n: 0,
}
}
pub fn bytes_of<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> usize
where
Module<B>: MatZnxAllocBytes,
{
GGLWECiphertext::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, rank_in, rank_out)
}
}
impl<D: Data> Infos for GLWESwitchingKey<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data> GLWESwitchingKey<D> {
pub fn rank(&self) -> usize {
self.key.data.cols_out() - 1
}
pub fn rank_in(&self) -> usize {
self.key.data.cols_in()
}
pub fn rank_out(&self) -> usize {
self.key.data.cols_out() - 1
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn sk_degree_in(&self) -> usize {
self.sk_in_n
}
pub fn sk_degree_out(&self) -> usize {
self.sk_out_n
}
}
impl<D: DataRef> GLWESwitchingKey<D> {
pub fn at(&self, row: usize, col: usize) -> GLWECiphertext<&[u8]> {
self.key.at(row, col)
}
}
impl<D: DataMut> GLWESwitchingKey<D> {
pub fn at_mut(&mut self, row: usize, col: usize) -> GLWECiphertext<&mut [u8]> {
self.key.at_mut(row, col)
}
}
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
impl<D: DataMut> ReaderFrom for GLWESwitchingKey<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.sk_in_n = reader.read_u64::<LittleEndian>()? as usize;
self.sk_out_n = reader.read_u64::<LittleEndian>()? as usize;
self.key.read_from(reader)
}
}
impl<D: DataRef> WriterTo for GLWESwitchingKey<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.sk_in_n as u64)?;
writer.write_u64::<LittleEndian>(self.sk_out_n as u64)?;
self.key.write_to(writer)
}
}
#[derive(PartialEq, Eq)]
pub struct GLWESwitchingKeyExec<D: Data, B: Backend> {
pub(crate) key: GGLWECiphertextExec<D, B>,
pub(crate) sk_in_n: usize, // Degree of sk_in
pub(crate) sk_out_n: usize, // Degree of sk_out
}
impl<B: Backend> GLWESwitchingKeyExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank_in: usize, rank_out: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
GLWESwitchingKeyExec::<Vec<u8>, B> {
key: GGLWECiphertextExec::alloc(module, basek, k, rows, digits, rank_in, rank_out),
sk_in_n: 0,
sk_out_n: 0,
}
}
pub fn bytes_of(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
GGLWECiphertextExec::bytes_of(module, basek, k, rows, digits, rank_in, rank_out)
}
pub fn from<DataOther: DataRef>(module: &Module<B>, other: &GLWESwitchingKey<DataOther>, scratch: &mut Scratch<B>) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let mut ksk_exec: GLWESwitchingKeyExec<Vec<u8>, B> = Self::alloc(
module,
other.basek(),
other.k(),
other.rows(),
other.digits(),
other.rank_in(),
other.rank_out(),
);
ksk_exec.prepare(module, other, scratch);
ksk_exec
}
}
impl<D: Data, B: Backend> Infos for GLWESwitchingKeyExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data, B: Backend> GLWESwitchingKeyExec<D, B> {
pub fn rank(&self) -> usize {
self.key.data.cols_out() - 1
}
pub fn rank_in(&self) -> usize {
self.key.data.cols_in()
}
pub fn rank_out(&self) -> usize {
self.key.data.cols_out() - 1
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn sk_degree_in(&self) -> usize {
self.sk_in_n
}
pub fn sk_degree_out(&self) -> usize {
self.sk_out_n
}
}
impl<D: DataMut, B: Backend> GLWESwitchingKeyExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &GLWESwitchingKey<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
self.key.prepare(module, &other.key, scratch);
self.sk_in_n = other.sk_in_n;
self.sk_out_n = other.sk_out_n;
}
}

344
core/src/gglwe/layout.rs
View File

@@ -1,9 +1,10 @@
use backend::hal::{
api::{MatZnxAlloc, MatZnxAllocBytes, VmpPMatAlloc, VmpPMatAllocBytes, VmpPMatPrepare},
layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, Scratch, VmpPMat, WriterTo},
layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, WriterTo},
};
use crate::{GLWECiphertext, Infos};
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
pub trait GGLWEExecLayoutFamily<B: Backend> = VmpPMatAlloc<B> + VmpPMatAllocBytes + VmpPMatPrepare<B>;
@@ -138,8 +139,6 @@ impl<D: Data> GGLWECiphertext<D> {
}
}
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
impl<D: DataMut> ReaderFrom for GGLWECiphertext<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.k = reader.read_u64::<LittleEndian>()? as usize;
@@ -159,43 +158,33 @@ impl<D: DataRef> WriterTo for GGLWECiphertext<D> {
}
#[derive(PartialEq, Eq)]
pub struct GGLWECiphertextExec<D: Data, B: Backend> {
pub(crate) data: VmpPMat<D, B>,
pub(crate) basek: usize,
pub(crate) k: usize,
pub(crate) digits: usize,
pub struct GLWESwitchingKey<D: Data> {
pub(crate) key: GGLWECiphertext<D>,
pub(crate) sk_in_n: usize, // Degree of sk_in
pub(crate) sk_out_n: usize, // Degree of sk_out
}
impl<B: Backend> GGLWECiphertextExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank_in: usize, rank_out: usize) -> Self
impl GLWESwitchingKey<Vec<u8>> {
pub fn alloc<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
Module<B>: MatZnxAlloc,
{
let size: usize = k.div_ceil(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.vmp_pmat_alloc(rows, rank_in, rank_out + 1, size),
basek: basek,
k,
digits,
GLWESwitchingKey {
key: GGLWECiphertext::alloc(module, basek, k, rows, digits, rank_in, rank_out),
sk_in_n: 0,
sk_out_n: 0,
}
}
pub fn bytes_of(
pub fn bytes_of<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
@@ -205,71 +194,278 @@ impl<B: Backend> GGLWECiphertextExec<Vec<u8>, B> {
rank_out: usize,
) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
Module<B>: MatZnxAllocBytes,
{
let size: usize = k.div_ceil(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.vmp_pmat_alloc_bytes(rows, rank_in, rank_out + 1, rows)
GGLWECiphertext::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, rank_in, rank_out)
}
}
impl<D: Data, B: Backend> Infos for GGLWECiphertextExec<D, B> {
type Inner = VmpPMat<D, B>;
impl<D: Data> Infos for GLWESwitchingKey<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.data
self.key.inner()
}
fn basek(&self) -> usize {
self.basek
self.key.basek()
}
fn k(&self) -> usize {
self.k
self.key.k()
}
}
impl<D: Data, B: Backend> GGLWECiphertextExec<D, B> {
impl<D: Data> GLWESwitchingKey<D> {
pub fn rank(&self) -> usize {
self.data.cols_out() - 1
}
pub fn digits(&self) -> usize {
self.digits
self.key.data.cols_out() - 1
}
pub fn rank_in(&self) -> usize {
self.data.cols_in()
self.key.data.cols_in()
}
pub fn rank_out(&self) -> usize {
self.data.cols_out() - 1
self.key.data.cols_out() - 1
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn sk_degree_in(&self) -> usize {
self.sk_in_n
}
pub fn sk_degree_out(&self) -> usize {
self.sk_out_n
}
}
impl<D: DataMut, B: Backend> GGLWECiphertextExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &GGLWECiphertext<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
module.vmp_prepare(&mut self.data, &other.data, scratch);
self.basek = other.basek;
self.k = other.k;
self.digits = other.digits;
impl<D: DataRef> GLWESwitchingKey<D> {
pub fn at(&self, row: usize, col: usize) -> GLWECiphertext<&[u8]> {
self.key.at(row, col)
}
}
impl<D: DataMut> GLWESwitchingKey<D> {
pub fn at_mut(&mut self, row: usize, col: usize) -> GLWECiphertext<&mut [u8]> {
self.key.at_mut(row, col)
}
}
impl<D: DataMut> ReaderFrom for GLWESwitchingKey<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.sk_in_n = reader.read_u64::<LittleEndian>()? as usize;
self.sk_out_n = reader.read_u64::<LittleEndian>()? as usize;
self.key.read_from(reader)
}
}
impl<D: DataRef> WriterTo for GLWESwitchingKey<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.sk_in_n as u64)?;
writer.write_u64::<LittleEndian>(self.sk_out_n as u64)?;
self.key.write_to(writer)
}
}
#[derive(PartialEq, Eq)]
pub struct AutomorphismKey<D: Data> {
pub(crate) key: GLWESwitchingKey<D>,
pub(crate) p: i64,
}
impl AutomorphismKey<Vec<u8>> {
pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: MatZnxAlloc,
{
AutomorphismKey {
key: GLWESwitchingKey::alloc(module, basek, k, rows, digits, rank, rank),
p: 0,
}
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
GLWESwitchingKey::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, rank, rank)
}
}
impl<D: Data> Infos for AutomorphismKey<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data> AutomorphismKey<D> {
pub fn p(&self) -> i64 {
self.p
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn rank(&self) -> usize {
self.key.rank()
}
pub fn rank_in(&self) -> usize {
self.key.rank_in()
}
pub fn rank_out(&self) -> usize {
self.key.rank_out()
}
}
impl<D: DataRef> AutomorphismKey<D> {
pub fn at(&self, row: usize, col: usize) -> GLWECiphertext<&[u8]> {
self.key.at(row, col)
}
}
impl<D: DataMut> AutomorphismKey<D> {
pub fn at_mut(&mut self, row: usize, col: usize) -> GLWECiphertext<&mut [u8]> {
self.key.at_mut(row, col)
}
}
impl<D: DataMut> ReaderFrom for AutomorphismKey<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.p = reader.read_u64::<LittleEndian>()? as i64;
self.key.read_from(reader)
}
}
impl<D: DataRef> WriterTo for AutomorphismKey<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.p as u64)?;
self.key.write_to(writer)
}
}
#[derive(PartialEq, Eq)]
pub struct GLWETensorKey<D: Data> {
pub(crate) keys: Vec<GLWESwitchingKey<D>>,
}
impl GLWETensorKey<Vec<u8>> {
pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: MatZnxAlloc,
{
let mut keys: Vec<GLWESwitchingKey<Vec<u8>>> = Vec::new();
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
(0..pairs).for_each(|_| {
keys.push(GLWESwitchingKey::alloc(
module, basek, k, rows, digits, 1, rank,
));
});
Self { keys: keys }
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
pairs * GLWESwitchingKey::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, 1, rank)
}
}
impl<D: Data> Infos for GLWETensorKey<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.keys[0].inner()
}
fn basek(&self) -> usize {
self.keys[0].basek()
}
fn k(&self) -> usize {
self.keys[0].k()
}
}
impl<D: Data> GLWETensorKey<D> {
pub fn rank(&self) -> usize {
self.keys[0].rank()
}
pub fn rank_in(&self) -> usize {
self.keys[0].rank_in()
}
pub fn rank_out(&self) -> usize {
self.keys[0].rank_out()
}
pub fn digits(&self) -> usize {
self.keys[0].digits()
}
}
impl<D: DataMut> GLWETensorKey<D> {
// Returns a mutable reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at_mut(&mut self, mut i: usize, mut j: usize) -> &mut GLWESwitchingKey<D> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&mut self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataRef> GLWETensorKey<D> {
// Returns a reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at(&self, mut i: usize, mut j: usize) -> &GLWESwitchingKey<D> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataMut> ReaderFrom for GLWETensorKey<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
let len: usize = reader.read_u64::<LittleEndian>()? as usize;
if self.keys.len() != len {
return Err(std::io::Error::new(
std::io::ErrorKind::InvalidData,
format!("self.keys.len()={} != read len={}", self.keys.len(), len),
));
}
for key in &mut self.keys {
key.read_from(reader)?;
}
Ok(())
}
}
impl<D: DataRef> WriterTo for GLWETensorKey<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.keys.len() as u64)?;
for key in &self.keys {
key.write_to(writer)?;
}
Ok(())
}
}

535
core/src/gglwe/layouts_compressed.rs Normal file
View File

@@ -0,0 +1,535 @@
use backend::hal::{
api::{MatZnxAlloc, MatZnxAllocBytes, VecZnxCopy, VecZnxFillUniform},
layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, WriterTo},
};
use crate::{AutomorphismKey, GGLWECiphertext, GLWECiphertextCompressed, GLWESwitchingKey, GLWETensorKey, Infos};
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
#[derive(PartialEq, Eq)]
pub struct GGLWECiphertextCompressed<D: Data> {
pub(crate) data: MatZnx<D>,
pub(crate) basek: usize,
pub(crate) k: usize,
pub(crate) rank_out: usize,
pub(crate) digits: usize,
pub(crate) seed: Vec<[u8; 32]>,
}
impl GGLWECiphertextCompressed<Vec<u8>> {
pub fn alloc<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> Self
where
Module<B>: MatZnxAlloc,
{
let size: usize = k.div_ceil(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.mat_znx_alloc(rows, rank_in, 1, size),
basek: basek,
k,
rank_out,
digits,
seed: vec![[0u8; 32]; rows * rank_in],
}
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank_in: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
let size: usize = k.div_ceil(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.mat_znx_alloc_bytes(rows, rank_in, 1, rows)
}
}
impl<D: Data> Infos for GGLWECiphertextCompressed<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.data
}
fn basek(&self) -> usize {
self.basek
}
fn k(&self) -> usize {
self.k
}
}
impl<D: Data> GGLWECiphertextCompressed<D> {
pub fn rank(&self) -> usize {
self.rank_out
}
pub fn digits(&self) -> usize {
self.digits
}
pub fn rank_in(&self) -> usize {
self.data.cols_in()
}
pub fn rank_out(&self) -> usize {
self.rank_out
}
}
impl<D: DataRef> GGLWECiphertextCompressed<D> {
pub(crate) fn at(&self, row: usize, col: usize) -> GLWECiphertextCompressed<&[u8]> {
GLWECiphertextCompressed {
data: self.data.at(row, col),
basek: self.basek,
k: self.k,
rank: self.rank_out,
seed: self.seed[self.rank_in() * row + col],
}
}
}
impl<D: DataMut> GGLWECiphertextCompressed<D> {
pub(crate) fn at_mut(&mut self, row: usize, col: usize) -> GLWECiphertextCompressed<&mut [u8]> {
let rank_in: usize = self.rank_in();
GLWECiphertextCompressed {
data: self.data.at_mut(row, col),
basek: self.basek,
k: self.k,
rank: self.rank_out,
seed: self.seed[rank_in * row + col], // Warning: value is copied and not borrow mut
}
}
}
impl<D: DataMut> ReaderFrom for GGLWECiphertextCompressed<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.k = reader.read_u64::<LittleEndian>()? as usize;
self.basek = reader.read_u64::<LittleEndian>()? as usize;
self.digits = reader.read_u64::<LittleEndian>()? as usize;
self.rank_out = reader.read_u64::<LittleEndian>()? as usize;
let seed_len = reader.read_u64::<LittleEndian>()? as usize;
if seed_len != self.seed.len() {
} else {
for s in &mut self.seed {
reader.read_exact(s)?;
}
}
self.data.read_from(reader)
}
}
impl<D: DataRef> WriterTo for GGLWECiphertextCompressed<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.k as u64)?;
writer.write_u64::<LittleEndian>(self.basek as u64)?;
writer.write_u64::<LittleEndian>(self.digits as u64)?;
writer.write_u64::<LittleEndian>(self.rank_out as u64)?;
writer.write_u64::<LittleEndian>(self.seed.len() as u64)?;
for s in &self.seed {
writer.write_all(s)?;
}
self.data.write_to(writer)
}
}
impl<D: DataMut> GGLWECiphertext<D> {
pub fn decompress<DataOther: DataRef, B: Backend>(&mut self, module: &Module<B>, other: &GGLWECiphertextCompressed<DataOther>)
where
Module<B>: VecZnxFillUniform + VecZnxCopy,
{
#[cfg(debug_assertions)]
{
use backend::hal::api::ZnxInfos;
assert_eq!(
self.n(),
other.data.n(),
"invalid receiver: self.n()={} != other.n()={}",
self.n(),
other.data.n()
);
assert_eq!(
self.size(),
other.size(),
"invalid receiver: self.size()={} != other.size()={}",
self.size(),
other.size()
);
assert_eq!(
self.rank_in(),
other.rank_in(),
"invalid receiver: self.rank_in()={} != other.rank_in()={}",
self.rank_in(),
other.rank_in()
);
assert_eq!(
self.rank_out(),
other.rank_out(),
"invalid receiver: self.rank_out()={} != other.rank_out()={}",
self.rank_out(),
other.rank_out()
);
assert_eq!(
self.rows(),
other.rows(),
"invalid receiver: self.rows()={} != other.rows()={}",
self.rows(),
other.rows()
);
}
let rank_in: usize = self.rank_in();
let rows: usize = self.rows();
(0..rank_in).for_each(|col_i| {
(0..rows).for_each(|row_i| {
self.at_mut(row_i, col_i)
.decompress(module, &other.at(row_i, col_i));
});
});
}
}
#[derive(PartialEq, Eq)]
pub struct GLWESwitchingKeyCompressed<D: Data> {
pub(crate) key: GGLWECiphertextCompressed<D>,
pub(crate) sk_in_n: usize, // Degree of sk_in
pub(crate) sk_out_n: usize, // Degree of sk_out
}
impl<D: Data> Infos for GLWESwitchingKeyCompressed<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data> GLWESwitchingKeyCompressed<D> {
pub fn rank(&self) -> usize {
self.key.rank()
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn rank_in(&self) -> usize {
self.key.rank_in()
}
pub fn rank_out(&self) -> usize {
self.key.rank_out()
}
}
impl GLWESwitchingKeyCompressed<Vec<u8>> {
pub fn alloc<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> Self
where
Module<B>: MatZnxAlloc,
{
GLWESwitchingKeyCompressed {
key: GGLWECiphertextCompressed::alloc(module, basek, k, rows, digits, rank_in, rank_out),
sk_in_n: 0,
sk_out_n: 0,
}
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank_in: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
GGLWECiphertextCompressed::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, rank_in)
}
}
impl<D: DataMut> ReaderFrom for GLWESwitchingKeyCompressed<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.sk_in_n = reader.read_u64::<LittleEndian>()? as usize;
self.sk_out_n = reader.read_u64::<LittleEndian>()? as usize;
self.key.read_from(reader)
}
}
impl<D: DataRef> WriterTo for GLWESwitchingKeyCompressed<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.sk_in_n as u64)?;
writer.write_u64::<LittleEndian>(self.sk_out_n as u64)?;
self.key.write_to(writer)
}
}
impl<D: DataMut> GLWESwitchingKey<D> {
pub fn decompress<DataOther: DataRef, B: Backend>(
&mut self,
module: &Module<B>,
other: &GLWESwitchingKeyCompressed<DataOther>,
) where
Module<B>: VecZnxFillUniform + VecZnxCopy,
{
self.key.decompress(module, &other.key);
self.sk_in_n = other.sk_in_n;
self.sk_out_n = other.sk_out_n;
}
}
#[derive(PartialEq, Eq)]
pub struct AutomorphismKeyCompressed<D: Data> {
pub(crate) key: GLWESwitchingKeyCompressed<D>,
pub(crate) p: i64,
}
impl AutomorphismKeyCompressed<Vec<u8>> {
pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: MatZnxAlloc,
{
AutomorphismKeyCompressed {
key: GLWESwitchingKeyCompressed::alloc(module, basek, k, rows, digits, rank, rank),
p: 0,
}
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
GLWESwitchingKeyCompressed::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, rank)
}
}
impl<D: Data> Infos for AutomorphismKeyCompressed<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data> AutomorphismKeyCompressed<D> {
pub fn rank(&self) -> usize {
self.key.rank()
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn rank_in(&self) -> usize {
self.key.rank_in()
}
pub fn rank_out(&self) -> usize {
self.key.rank_out()
}
}
impl<D: DataMut> ReaderFrom for AutomorphismKeyCompressed<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
self.p = reader.read_u64::<LittleEndian>()? as i64;
self.key.read_from(reader)
}
}
impl<D: DataRef> WriterTo for AutomorphismKeyCompressed<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.p as u64)?;
self.key.write_to(writer)
}
}
impl<D: DataMut> AutomorphismKey<D> {
pub fn decompress<DataOther: DataRef, B: Backend>(&mut self, module: &Module<B>, other: &AutomorphismKeyCompressed<DataOther>)
where
Module<B>: VecZnxFillUniform + VecZnxCopy,
{
self.key.decompress(module, &other.key);
self.p = other.p;
}
}
#[derive(PartialEq, Eq)]
pub struct GLWETensorKeyCompressed<D: Data> {
pub(crate) keys: Vec<GLWESwitchingKeyCompressed<D>>,
}
impl GLWETensorKeyCompressed<Vec<u8>> {
pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: MatZnxAlloc,
{
let mut keys: Vec<GLWESwitchingKeyCompressed<Vec<u8>>> = Vec::new();
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
(0..pairs).for_each(|_| {
keys.push(GLWESwitchingKeyCompressed::alloc(
module, basek, k, rows, digits, 1, rank,
));
});
Self { keys: keys }
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
pairs * GLWESwitchingKeyCompressed::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, 1)
}
}
impl<D: Data> Infos for GLWETensorKeyCompressed<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.keys[0].inner()
}
fn basek(&self) -> usize {
self.keys[0].basek()
}
fn k(&self) -> usize {
self.keys[0].k()
}
}
impl<D: Data> GLWETensorKeyCompressed<D> {
pub fn rank(&self) -> usize {
self.keys[0].rank()
}
pub fn digits(&self) -> usize {
self.keys[0].digits()
}
pub fn rank_in(&self) -> usize {
self.keys[0].rank_in()
}
pub fn rank_out(&self) -> usize {
self.keys[0].rank_out()
}
}
impl<D: DataMut> ReaderFrom for GLWETensorKeyCompressed<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
let len: usize = reader.read_u64::<LittleEndian>()? as usize;
if self.keys.len() != len {
return Err(std::io::Error::new(
std::io::ErrorKind::InvalidData,
format!("self.keys.len()={} != read len={}", self.keys.len(), len),
));
}
for key in &mut self.keys {
key.read_from(reader)?;
}
Ok(())
}
}
impl<D: DataRef> WriterTo for GLWETensorKeyCompressed<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.keys.len() as u64)?;
for key in &self.keys {
key.write_to(writer)?;
}
Ok(())
}
}
impl<D: DataMut> GLWETensorKeyCompressed<D> {
pub(crate) fn at_mut(&mut self, mut i: usize, mut j: usize) -> &mut GLWESwitchingKeyCompressed<D> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&mut self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataMut> GLWETensorKey<D> {
pub fn decompress<DataOther: DataRef, B: Backend>(&mut self, module: &Module<B>, other: &GLWETensorKeyCompressed<DataOther>)
where
Module<B>: VecZnxFillUniform + VecZnxCopy,
{
#[cfg(debug_assertions)]
{
assert_eq!(
self.keys.len(),
other.keys.len(),
"invalid receiver: self.keys.len()={} != other.keys.len()={}",
self.keys.len(),
other.keys.len()
);
}
self.keys
.iter_mut()
.zip(other.keys.iter())
.for_each(|(a, b)| {
a.decompress(module, b);
});
}
}

422
core/src/gglwe/layouts_exec.rs Normal file
View File

@@ -0,0 +1,422 @@
use backend::hal::{
api::{VmpPMatAlloc, VmpPMatAllocBytes, VmpPMatPrepare},
layouts::{Backend, Data, DataMut, DataRef, Module, Scratch, VmpPMat},
};
use crate::{AutomorphismKey, GGLWECiphertext, GGLWEExecLayoutFamily, GLWESwitchingKey, GLWETensorKey, Infos};
#[derive(PartialEq, Eq)]
pub struct GGLWECiphertextExec<D: Data, B: Backend> {
pub(crate) data: VmpPMat<D, B>,
pub(crate) basek: usize,
pub(crate) k: usize,
pub(crate) digits: usize,
}
impl<B: Backend> GGLWECiphertextExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank_in: usize, rank_out: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let size: usize = k.div_ceil(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.vmp_pmat_alloc(rows, rank_in, rank_out + 1, size),
basek: basek,
k,
digits,
}
}
pub fn bytes_of(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let size: usize = k.div_ceil(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.vmp_pmat_alloc_bytes(rows, rank_in, rank_out + 1, rows)
}
}
impl<D: Data, B: Backend> Infos for GGLWECiphertextExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
&self.data
}
fn basek(&self) -> usize {
self.basek
}
fn k(&self) -> usize {
self.k
}
}
impl<D: Data, B: Backend> GGLWECiphertextExec<D, 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<D: DataMut, B: Backend> GGLWECiphertextExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &GGLWECiphertext<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
module.vmp_prepare(&mut self.data, &other.data, scratch);
self.basek = other.basek;
self.k = other.k;
self.digits = other.digits;
}
}
#[derive(PartialEq, Eq)]
pub struct GLWESwitchingKeyExec<D: Data, B: Backend> {
pub(crate) key: GGLWECiphertextExec<D, B>,
pub(crate) sk_in_n: usize, // Degree of sk_in
pub(crate) sk_out_n: usize, // Degree of sk_out
}
impl<B: Backend> GLWESwitchingKeyExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank_in: usize, rank_out: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
GLWESwitchingKeyExec::<Vec<u8>, B> {
key: GGLWECiphertextExec::alloc(module, basek, k, rows, digits, rank_in, rank_out),
sk_in_n: 0,
sk_out_n: 0,
}
}
pub fn bytes_of(
module: &Module<B>,
basek: usize,
k: usize,
rows: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
GGLWECiphertextExec::bytes_of(module, basek, k, rows, digits, rank_in, rank_out)
}
pub fn from<DataOther: DataRef>(module: &Module<B>, other: &GLWESwitchingKey<DataOther>, scratch: &mut Scratch<B>) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let mut ksk_exec: GLWESwitchingKeyExec<Vec<u8>, B> = Self::alloc(
module,
other.basek(),
other.k(),
other.rows(),
other.digits(),
other.rank_in(),
other.rank_out(),
);
ksk_exec.prepare(module, other, scratch);
ksk_exec
}
}
impl<D: Data, B: Backend> Infos for GLWESwitchingKeyExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data, B: Backend> GLWESwitchingKeyExec<D, B> {
pub fn rank(&self) -> usize {
self.key.data.cols_out() - 1
}
pub fn rank_in(&self) -> usize {
self.key.data.cols_in()
}
pub fn rank_out(&self) -> usize {
self.key.data.cols_out() - 1
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn sk_degree_in(&self) -> usize {
self.sk_in_n
}
pub fn sk_degree_out(&self) -> usize {
self.sk_out_n
}
}
impl<D: DataMut, B: Backend> GLWESwitchingKeyExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &GLWESwitchingKey<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
self.key.prepare(module, &other.key, scratch);
self.sk_in_n = other.sk_in_n;
self.sk_out_n = other.sk_out_n;
}
}
#[derive(PartialEq, Eq)]
pub struct AutomorphismKeyExec<D: Data, B: Backend> {
pub(crate) key: GLWESwitchingKeyExec<D, B>,
pub(crate) p: i64,
}
impl<B: Backend> AutomorphismKeyExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
AutomorphismKeyExec::<Vec<u8>, B> {
key: GLWESwitchingKeyExec::alloc(module, basek, k, rows, digits, rank, rank),
p: 0,
}
}
pub fn bytes_of(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
GLWESwitchingKeyExec::<Vec<u8>, B>::bytes_of(module, basek, k, rows, digits, rank, rank)
}
pub fn from<DataOther: DataRef>(module: &Module<B>, other: &AutomorphismKey<DataOther>, scratch: &mut Scratch<B>) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let mut atk_exec: AutomorphismKeyExec<Vec<u8>, B> = Self::alloc(
module,
other.basek(),
other.k(),
other.rows(),
other.digits(),
other.rank(),
);
atk_exec.prepare(module, other, scratch);
atk_exec
}
}
impl<D: DataMut, B: Backend> AutomorphismKeyExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &AutomorphismKey<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
self.key.prepare(module, &other.key, scratch);
self.p = other.p;
}
}
impl<D: Data, B: Backend> Infos for AutomorphismKeyExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
&self.key.inner()
}
fn basek(&self) -> usize {
self.key.basek()
}
fn k(&self) -> usize {
self.key.k()
}
}
impl<D: Data, B: Backend> AutomorphismKeyExec<D, B> {
pub fn p(&self) -> i64 {
self.p
}
pub fn digits(&self) -> usize {
self.key.digits()
}
pub fn rank(&self) -> usize {
self.key.rank()
}
pub fn rank_in(&self) -> usize {
self.key.rank_in()
}
pub fn rank_out(&self) -> usize {
self.key.rank_out()
}
}
#[derive(PartialEq, Eq)]
pub struct GLWETensorKeyExec<D: Data, B: Backend> {
pub(crate) keys: Vec<GLWESwitchingKeyExec<D, B>>,
}
impl<B: Backend> GLWETensorKeyExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let mut keys: Vec<GLWESwitchingKeyExec<Vec<u8>, B>> = Vec::new();
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
(0..pairs).for_each(|_| {
keys.push(GLWESwitchingKeyExec::alloc(
module, basek, k, rows, digits, 1, rank,
));
});
Self { keys }
}
pub fn bytes_of(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
pairs * GLWESwitchingKeyExec::<Vec<u8>, B>::bytes_of(module, basek, k, rows, digits, 1, rank)
}
}
impl<D: Data, B: Backend> Infos for GLWETensorKeyExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
&self.keys[0].inner()
}
fn basek(&self) -> usize {
self.keys[0].basek()
}
fn k(&self) -> usize {
self.keys[0].k()
}
}
impl<D: Data, B: Backend> GLWETensorKeyExec<D, B> {
pub fn rank(&self) -> usize {
self.keys[0].rank()
}
pub fn rank_in(&self) -> usize {
self.keys[0].rank_in()
}
pub fn rank_out(&self) -> usize {
self.keys[0].rank_out()
}
pub fn digits(&self) -> usize {
self.keys[0].digits()
}
}
impl<D: DataMut, B: Backend> GLWETensorKeyExec<D, B> {
// Returns a mutable reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at_mut(&mut self, mut i: usize, mut j: usize) -> &mut GLWESwitchingKeyExec<D, B> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&mut self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataRef, B: Backend> GLWETensorKeyExec<D, B> {
// Returns a reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at(&self, mut i: usize, mut j: usize) -> &GLWESwitchingKeyExec<D, B> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataMut, B: Backend> GLWETensorKeyExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &GLWETensorKey<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
#[cfg(debug_assertions)]
{
assert_eq!(self.keys.len(), other.keys.len());
}
self.keys
.iter_mut()
.zip(other.keys.iter())
.for_each(|(a, b)| {
a.prepare(module, b, scratch);
});
}
}

18
core/src/gglwe/mod.rs
View File

@@ -1,20 +1,16 @@
mod automorphism;
mod automorphism_key;
mod encryption;
mod external_product;
mod keyswitch;
mod keyswitch_key;
mod layout;
mod layouts_compressed;
mod layouts_exec;
mod noise;
mod tensor_key;
pub use automorphism_key::{AutomorphismKey, AutomorphismKeyExec};
pub use encryption::{
AutomorphismKeyEncryptSkFamily, GGLWEEncryptSkFamily, GLWESwitchingKeyEncryptSkFamily, GLWETensorKeyEncryptSkFamily,
};
pub use keyswitch_key::{GLWESwitchingKey, GLWESwitchingKeyExec};
pub use layout::{GGLWECiphertext, GGLWECiphertextExec, GGLWEExecLayoutFamily};
pub use tensor_key::{GLWETensorKey, GLWETensorKeyExec};
pub use encryption::*;
pub use layout::*;
pub use layouts_compressed::*;
pub use layouts_exec::*;
#[cfg(test)]
mod test;
mod tests;

223
core/src/gglwe/tensor_key.rs
View File

@@ -1,223 +0,0 @@
use backend::hal::{
api::{MatZnxAlloc, MatZnxAllocBytes},
layouts::{Backend, Data, DataMut, DataRef, MatZnx, Module, ReaderFrom, Scratch, VmpPMat, WriterTo},
};
use crate::{GGLWEExecLayoutFamily, GLWESwitchingKey, GLWESwitchingKeyExec, Infos};
#[derive(PartialEq, Eq)]
pub struct GLWETensorKey<D: Data> {
pub(crate) keys: Vec<GLWESwitchingKey<D>>,
}
impl GLWETensorKey<Vec<u8>> {
pub fn alloc<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: MatZnxAlloc,
{
let mut keys: Vec<GLWESwitchingKey<Vec<u8>>> = Vec::new();
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
(0..pairs).for_each(|_| {
keys.push(GLWESwitchingKey::alloc(
module, basek, k, rows, digits, 1, rank,
));
});
Self { keys: keys }
}
pub fn bytes_of<B: Backend>(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: MatZnxAllocBytes,
{
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
pairs * GLWESwitchingKey::<Vec<u8>>::bytes_of(module, basek, k, rows, digits, 1, rank)
}
}
impl<D: Data> Infos for GLWETensorKey<D> {
type Inner = MatZnx<D>;
fn inner(&self) -> &Self::Inner {
&self.keys[0].inner()
}
fn basek(&self) -> usize {
self.keys[0].basek()
}
fn k(&self) -> usize {
self.keys[0].k()
}
}
impl<D: Data> GLWETensorKey<D> {
pub fn rank(&self) -> usize {
self.keys[0].rank()
}
pub fn rank_in(&self) -> usize {
self.keys[0].rank_in()
}
pub fn rank_out(&self) -> usize {
self.keys[0].rank_out()
}
pub fn digits(&self) -> usize {
self.keys[0].digits()
}
}
impl<D: DataMut> GLWETensorKey<D> {
// Returns a mutable reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at_mut(&mut self, mut i: usize, mut j: usize) -> &mut GLWESwitchingKey<D> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&mut self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataRef> GLWETensorKey<D> {
// Returns a reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at(&self, mut i: usize, mut j: usize) -> &GLWESwitchingKey<D> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
impl<D: DataMut> ReaderFrom for GLWETensorKey<D> {
fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
let len: usize = reader.read_u64::<LittleEndian>()? as usize;
if self.keys.len() != len {
return Err(std::io::Error::new(
std::io::ErrorKind::InvalidData,
format!("self.keys.len()={} != read len={}", self.keys.len(), len),
));
}
for key in &mut self.keys {
key.read_from(reader)?;
}
Ok(())
}
}
impl<D: DataRef> WriterTo for GLWETensorKey<D> {
fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
writer.write_u64::<LittleEndian>(self.keys.len() as u64)?;
for key in &self.keys {
key.write_to(writer)?;
}
Ok(())
}
}
#[derive(PartialEq, Eq)]
pub struct GLWETensorKeyExec<D: Data, B: Backend> {
pub(crate) keys: Vec<GLWESwitchingKeyExec<D, B>>,
}
impl<B: Backend> GLWETensorKeyExec<Vec<u8>, B> {
pub fn alloc(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let mut keys: Vec<GLWESwitchingKeyExec<Vec<u8>, B>> = Vec::new();
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
(0..pairs).for_each(|_| {
keys.push(GLWESwitchingKeyExec::alloc(
module, basek, k, rows, digits, 1, rank,
));
});
Self { keys }
}
pub fn bytes_of(module: &Module<B>, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize
where
Module<B>: GGLWEExecLayoutFamily<B>,
{
let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
pairs * GLWESwitchingKeyExec::<Vec<u8>, B>::bytes_of(module, basek, k, rows, digits, 1, rank)
}
}
impl<D: Data, B: Backend> Infos for GLWETensorKeyExec<D, B> {
type Inner = VmpPMat<D, B>;
fn inner(&self) -> &Self::Inner {
&self.keys[0].inner()
}
fn basek(&self) -> usize {
self.keys[0].basek()
}
fn k(&self) -> usize {
self.keys[0].k()
}
}
impl<D: Data, B: Backend> GLWETensorKeyExec<D, B> {
pub fn rank(&self) -> usize {
self.keys[0].rank()
}
pub fn rank_in(&self) -> usize {
self.keys[0].rank_in()
}
pub fn rank_out(&self) -> usize {
self.keys[0].rank_out()
}
pub fn digits(&self) -> usize {
self.keys[0].digits()
}
}
impl<D: DataMut, B: Backend> GLWETensorKeyExec<D, B> {
// Returns a mutable reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at_mut(&mut self, mut i: usize, mut j: usize) -> &mut GLWESwitchingKeyExec<D, B> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&mut self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataRef, B: Backend> GLWETensorKeyExec<D, B> {
// Returns a reference to GLWESwitchingKey_{s}(s[i] * s[j])
pub fn at(&self, mut i: usize, mut j: usize) -> &GLWESwitchingKeyExec<D, B> {
if i > j {
std::mem::swap(&mut i, &mut j);
};
let rank: usize = self.rank();
&self.keys[i * rank + j - (i * (i + 1) / 2)]
}
}
impl<D: DataMut, B: Backend> GLWETensorKeyExec<D, B> {
pub fn prepare<DataOther>(&mut self, module: &Module<B>, other: &GLWETensorKey<DataOther>, scratch: &mut Scratch<B>)
where
DataOther: DataRef,
Module<B>: GGLWEExecLayoutFamily<B>,
{
#[cfg(debug_assertions)]
{
assert_eq!(self.keys.len(), other.keys.len());
}
self.keys
.iter_mut()
.zip(other.keys.iter())
.for_each(|(a, b)| {
a.prepare(module, b, scratch);
});
}
}

138
core/src/gglwe/test/gglwe_fft64.rs
View File

@@ -1,138 +0,0 @@
use backend::{
hal::{api::ModuleNew, layouts::Module},
implementation::cpu_spqlios::FFT64,
};
use crate::gglwe::test::gglwe_generic::{
test_encrypt_sk, test_external_product, test_external_product_inplace, test_keyswitch, test_keyswitch_inplace,
};
#[test]
fn encrypt_sk() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ksk: usize = 54;
let digits: usize = k_ksk / basek;
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits + 1).for_each(|di| {
println!(
"test encrypt_sk digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
test_encrypt_sk(&module, basek, k_ksk, di, rank_in, rank_out, 3.2);
});
});
});
}
#[test]
fn keyswitch() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_in: usize = 60;
let digits: usize = k_in.div_ceil(basek);
(1..4).for_each(|rank_in_s0s1| {
(1..4).for_each(|rank_out_s0s1| {
(1..4).for_each(|rank_out_s1s2| {
(1..digits + 1).for_each(|di| {
let k_ksk: usize = k_in + basek * di;
println!(
"test key_switch digits: {} ranks: ({},{},{})",
di, rank_in_s0s1, rank_out_s0s1, rank_out_s1s2
);
let k_out: usize = k_ksk; // Better capture noise.
test_keyswitch(
&module,
basek,
k_out,
k_in,
k_ksk,
di,
rank_in_s0s1,
rank_out_s0s1,
rank_out_s1s2,
3.2,
);
})
})
});
});
}
#[test]
fn keyswitch_inplace() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ct: usize = 60;
let digits: usize = k_ct.div_ceil(basek);
(1..4).for_each(|rank_in_s0s1| {
(1..4).for_each(|rank_out_s0s1| {
(1..digits + 1).for_each(|di| {
let k_ksk: usize = k_ct + basek * di;
println!(
"test key_switch_inplace digits: {} ranks: ({},{})",
di, rank_in_s0s1, rank_out_s0s1
);
test_keyswitch_inplace(
&module,
basek,
k_ct,
k_ksk,
di,
rank_in_s0s1,
rank_out_s0s1,
3.2,
);
});
});
});
}
#[test]
fn external_product() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_in: usize = 60;
let digits: usize = k_in.div_ceil(basek);
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits + 1).for_each(|di| {
let k_ggsw: usize = k_in + basek * di;
println!(
"test external_product digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
let k_out: usize = k_in; // Better capture noise.
test_external_product(
&module, basek, k_out, k_in, k_ggsw, di, rank_in, rank_out, 3.2,
);
});
});
});
}
#[test]
fn external_product_inplace() {
let log_n: usize = 5;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ct: usize = 60;
let digits: usize = k_ct.div_ceil(basek);
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits).for_each(|di| {
let k_ggsw: usize = k_ct + basek * di;
println!(
"test external_product_inplace digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
test_external_product_inplace(&module, basek, k_ct, k_ggsw, di, rank_in, rank_out, 3.2);
});
});
});
}

5
core/src/gglwe/test/mod.rs
View File

@@ -1,5 +0,0 @@
mod automorphism_key;
mod gglwe_fft64;
mod gglwe_generic;
mod tensor_key_fft64;
mod tensor_key_generic;

16
core/src/gglwe/test/tensor_key_fft64.rs
View File

@@ -1,16 +0,0 @@
use backend::{
hal::{api::ModuleNew, layouts::Module},
implementation::cpu_spqlios::FFT64,
};
use crate::gglwe::test::tensor_key_generic::test_encrypt_sk;
#[test]
fn encrypt_sk() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
(1..4).for_each(|rank| {
println!("test encrypt_sk rank: {}", rank);
test_encrypt_sk(&module, 16, 54, 3.2, rank);
});
}

259
core/src/gglwe/tests/cpu_spqlios/fft64.rs Normal file
View File

@@ -0,0 +1,259 @@
use backend::{
hal::{api::ModuleNew, layouts::Module},
implementation::cpu_spqlios::FFT64,
};
use crate::gglwe::tests::{
generics_automorphism_key::{
test_automorphisk_key_encrypt_sk, test_automorphisk_key_encrypt_sk_compressed, test_gglwe_automorphism,
test_gglwe_automorphism_inplace,
},
generics_gglwe::{
test_gglwe_encrypt_sk, test_gglwe_encrypt_sk_compressed, test_gglwe_external_product,
test_gglwe_external_product_inplace, test_gglwe_keyswitch, test_gglwe_keyswitch_inplace,
},
generics_tensor_key::{test_tensor_key_encrypt_sk, test_tensor_key_encrypt_sk_compressed},
};
#[test]
fn gglwe_encrypt_sk() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ksk: usize = 54;
let digits: usize = k_ksk / basek;
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits + 1).for_each(|di| {
println!(
"test gglwe_encrypt_sk digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
test_gglwe_encrypt_sk(&module, basek, k_ksk, di, rank_in, rank_out, 3.2);
});
});
});
}
#[test]
fn gglwe_encrypt_sk_compressed() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ksk: usize = 54;
let digits: usize = k_ksk / basek;
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits + 1).for_each(|di| {
println!(
"test gglwe_encrypt_sk_compressed digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
test_gglwe_encrypt_sk_compressed(&module, basek, k_ksk, di, rank_in, rank_out, 3.2);
});
});
});
}
#[test]
fn gglwe_keyswitch() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_in: usize = 60;
let digits: usize = k_in.div_ceil(basek);
(1..4).for_each(|rank_in_s0s1| {
(1..4).for_each(|rank_out_s0s1| {
(1..4).for_each(|rank_out_s1s2| {
(1..digits + 1).for_each(|di| {
let k_ksk: usize = k_in + basek * di;
println!(
"test gglwe_keyswitch digits: {} ranks: ({},{},{})",
di, rank_in_s0s1, rank_out_s0s1, rank_out_s1s2
);
let k_out: usize = k_ksk; // Better capture noise.
test_gglwe_keyswitch(
&module,
basek,
k_out,
k_in,
k_ksk,
di,
rank_in_s0s1,
rank_out_s0s1,
rank_out_s1s2,
3.2,
);
})
})
});
});
}
#[test]
fn gglwe_keyswitch_inplace() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ct: usize = 60;
let digits: usize = k_ct.div_ceil(basek);
(1..4).for_each(|rank_in_s0s1| {
(1..4).for_each(|rank_out_s0s1| {
(1..digits + 1).for_each(|di| {
let k_ksk: usize = k_ct + basek * di;
println!(
"test gglwe_keyswitch_inplace digits: {} ranks: ({},{})",
di, rank_in_s0s1, rank_out_s0s1
);
test_gglwe_keyswitch_inplace(
&module,
basek,
k_ct,
k_ksk,
di,
rank_in_s0s1,
rank_out_s0s1,
3.2,
);
});
});
});
}
#[test]
fn gglwe_external_product() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_in: usize = 60;
let digits: usize = k_in.div_ceil(basek);
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits + 1).for_each(|di| {
let k_ggsw: usize = k_in + basek * di;
println!(
"test gglwe_external_product digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
let k_out: usize = k_in; // Better capture noise.
test_gglwe_external_product(
&module, basek, k_out, k_in, k_ggsw, di, rank_in, rank_out, 3.2,
);
});
});
});
}
#[test]
fn gglwe_external_product_inplace() {
let log_n: usize = 5;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_ct: usize = 60;
let digits: usize = k_ct.div_ceil(basek);
(1..4).for_each(|rank_in| {
(1..4).for_each(|rank_out| {
(1..digits).for_each(|di| {
let k_ggsw: usize = k_ct + basek * di;
println!(
"test gglwe_external_product_inplace digits: {} ranks: ({} {})",
di, rank_in, rank_out
);
test_gglwe_external_product_inplace(&module, basek, k_ct, k_ggsw, di, rank_in, rank_out, 3.2);
});
});
});
}
#[test]
fn automorphism_key_encrypt_sk() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k: usize = 60;
let digits: usize = k.div_ceil(basek) - 1;
let sigma: f64 = 3.2;
(1..4).for_each(|rank| {
(2..digits + 1).for_each(|di| {
println!(
"test automorphism key encrypt sk digits: {} rank: {}",
di, rank
);
test_automorphisk_key_encrypt_sk(&module, basek, k, di, rank, sigma);
});
});
}
#[test]
fn automorphism_key_encrypt_sk_compressed() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k: usize = 60;
let digits: usize = k.div_ceil(basek) - 1;
let sigma: f64 = 3.2;
(1..4).for_each(|rank| {
(2..digits + 1).for_each(|di| {
println!(
"test automorphism key encrypt sk compressed digits: {} rank: {}",
di, rank
);
test_automorphisk_key_encrypt_sk_compressed(&module, basek, k, di, rank, sigma);
});
});
}
#[test]
fn gglwe_automorphism() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_in: usize = 60;
let k_out: usize = 40;
let digits: usize = k_in.div_ceil(basek);
let sigma: f64 = 3.2;
(1..4).for_each(|rank| {
(2..digits + 1).for_each(|di| {
println!("test automorphism digits: {} rank: {}", di, rank);
let k_apply: usize = (digits + di) * basek;
test_gglwe_automorphism(&module, -1, 5, basek, di, k_in, k_out, k_apply, sigma, rank);
});
});
}
#[test]
fn gglwe_automorphism_inplace() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
let basek: usize = 12;
let k_in: usize = 60;
let digits: usize = k_in.div_ceil(basek);
let sigma: f64 = 3.2;
(1..4).for_each(|rank| {
(2..digits + 1).for_each(|di| {
println!("test automorphism_inplace digits: {} rank: {}", di, rank);
let k_apply: usize = (digits + di) * basek;
test_gglwe_automorphism_inplace(&module, -1, 5, basek, di, k_in, k_apply, sigma, rank);
});
});
}
#[test]
fn tensor_key_encrypt_sk() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
(1..4).for_each(|rank| {
println!("test encrypt_sk rank: {}", rank);
test_tensor_key_encrypt_sk(&module, 16, 54, 3.2, rank);
});
}
#[test]
fn tensor_key_encrypt_sk_compressed() {
let log_n: usize = 8;
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
(1..4).for_each(|rank| {
println!("test encrypt_sk_compressed rank: {}", rank);
test_tensor_key_encrypt_sk_compressed(&module, 16, 54, 3.2, rank);
});
}

1
core/src/gglwe/tests/cpu_spqlios/mod.rs Normal file
View File

@@ -0,0 +1 @@
mod fft64;

227
core/src/gglwe/test/automorphism_key.rs → core/src/gglwe/tests/generics_automorphism_key.rs
View File

@@ -1,53 +1,168 @@
use backend::{
hal::{
api::{ModuleNew, ScalarZnxAutomorphism, ScratchOwnedAlloc, ScratchOwnedBorrow, VecZnxStd, VecZnxSubScalarInplace},
layouts::{Module, ScratchOwned},
use backend::hal::{
api::{
MatZnxAlloc, ScalarZnxAlloc, ScalarZnxAllocBytes, ScratchOwnedAlloc, ScratchOwnedBorrow, VecZnxAddScalarInplace,
VecZnxAlloc, VecZnxAllocBytes, VecZnxAutomorphism, VecZnxAutomorphismInplace, VecZnxCopy, VecZnxStd,
VecZnxSubScalarInplace, VecZnxSwithcDegree,
},
layouts::{Backend, Module, ScratchOwned},
oep::{
ScratchAvailableImpl, ScratchOwnedAllocImpl, ScratchOwnedBorrowImpl, TakeScalarZnxImpl, TakeSvpPPolImpl,
TakeVecZnxBigImpl, TakeVecZnxDftImpl, TakeVecZnxImpl,
},
implementation::cpu_spqlios::FFT64,
};
use sampling::source::Source;
use crate::{
AutomorphismKey, AutomorphismKeyExec, GLWEPlaintext, GLWESecret, GLWESecretExec, Infos, noise::log2_std_noise_gglwe_product,
AutomorphismKey, AutomorphismKeyCompressed, AutomorphismKeyEncryptSkFamily, AutomorphismKeyExec, GGLWEExecLayoutFamily,
GLWEDecryptFamily, GLWEKeyswitchFamily, GLWEPlaintext, GLWESecret, GLWESecretExec, Infos,
noise::log2_std_noise_gglwe_product,
};
#[test]
fn automorphism() {
let log_n: usize = 8;
let basek: usize = 12;
let k_in: usize = 60;
let k_out: usize = 40;
let digits: usize = k_in.div_ceil(basek);
let sigma: f64 = 3.2;
(1..4).for_each(|rank| {
(2..digits + 1).for_each(|di| {
println!("test automorphism digits: {} rank: {}", di, rank);
let k_apply: usize = (digits + di) * basek;
test_automorphism(-1, 5, log_n, basek, di, k_in, k_out, k_apply, sigma, rank);
});
pub(crate) trait AutomorphismTestModuleFamily<B: Backend> = MatZnxAlloc
+ AutomorphismKeyEncryptSkFamily<B>
+ ScalarZnxAllocBytes
+ VecZnxAllocBytes
+ GLWEKeyswitchFamily<B>
+ ScalarZnxAlloc
+ VecZnxAutomorphism
+ GGLWEExecLayoutFamily<B>
+ VecZnxSwithcDegree
+ VecZnxAddScalarInplace
+ VecZnxAutomorphism
+ VecZnxAutomorphismInplace
+ VecZnxAlloc
+ GLWEDecryptFamily<B>
+ VecZnxSubScalarInplace
+ VecZnxStd
+ VecZnxCopy;
pub(crate) trait AutomorphismTestScratchFamily<B: Backend> = ScratchOwnedAllocImpl<B>
+ ScratchOwnedBorrowImpl<B>
+ ScratchAvailableImpl<B>
+ TakeScalarZnxImpl<B>
+ TakeVecZnxDftImpl<B>
+ TakeVecZnxImpl<B>
+ TakeSvpPPolImpl<B>
+ TakeVecZnxBigImpl<B>;
pub(crate) fn test_automorphisk_key_encrypt_sk<B: Backend>(
module: &Module<B>,
basek: usize,
k_ksk: usize,
digits: usize,
rank: usize,
sigma: f64,
) where
Module<B>: AutomorphismTestModuleFamily<B>,
B: AutomorphismTestScratchFamily<B>,
{
let rows: usize = (k_ksk - digits * basek) / (digits * basek);
let mut atk: AutomorphismKey<Vec<u8>> = AutomorphismKey::alloc(module, basek, k_ksk, rows, digits, rank);
let mut source_xs: Source = Source::new([0u8; 32]);
let mut source_xe: Source = Source::new([0u8; 32]);
let mut source_xa: Source = Source::new([0u8; 32]);
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(AutomorphismKey::encrypt_sk_scratch_space(
module, basek, k_ksk, rank,
));
let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(module, rank);
sk.fill_ternary_prob(0.5, &mut source_xs);
let p = -5;
atk.encrypt_sk(
module,
p,
&sk,
&mut source_xa,
&mut source_xe,
sigma,
scratch.borrow(),
);
let mut sk_out: GLWESecret<Vec<u8>> = sk.clone();
(0..atk.rank()).for_each(|i| {
module.vec_znx_automorphism(
module.galois_element_inv(p),
&mut sk_out.data.as_vec_znx_mut(),
i,
&sk.data.as_vec_znx(),
i,
);
});
let sk_out_exec = GLWESecretExec::from(module, &sk_out);
atk.key
.key
.assert_noise(module, &sk_out_exec, &sk.data, sigma);
}
#[test]
fn automorphism_inplace() {
let log_n: usize = 8;
let basek: usize = 12;
let k_in: usize = 60;
let digits: usize = k_in.div_ceil(basek);
let sigma: f64 = 3.2;
(1..4).for_each(|rank| {
(2..digits + 1).for_each(|di| {
println!("test automorphism digits: {} rank: {}", di, rank);
let k_apply: usize = (digits + di) * basek;
test_automorphism_inplace(-1, 5, log_n, basek, di, k_in, k_apply, sigma, rank);
});
pub(crate) fn test_automorphisk_key_encrypt_sk_compressed<B: Backend>(
module: &Module<B>,
basek: usize,
k_ksk: usize,
digits: usize,
rank: usize,
sigma: f64,
) where
Module<B>: AutomorphismTestModuleFamily<B>,
B: AutomorphismTestScratchFamily<B>,
{
let rows: usize = (k_ksk - digits * basek) / (digits * basek);
let mut atk_compressed: AutomorphismKeyCompressed<Vec<u8>> =
AutomorphismKeyCompressed::alloc(module, basek, k_ksk, rows, digits, rank);
let mut source_xs: Source = Source::new([0u8; 32]);
let mut source_xe: Source = Source::new([0u8; 32]);
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(AutomorphismKey::encrypt_sk_scratch_space(
module, basek, k_ksk, rank,
));
let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(module, rank);
sk.fill_ternary_prob(0.5, &mut source_xs);
let p = -5;
let seed_xa: [u8; 32] = [1u8; 32];
atk_compressed.encrypt_sk(
module,
p,
&sk,
seed_xa,
&mut source_xe,
sigma,
scratch.borrow(),
);
let mut sk_out: GLWESecret<Vec<u8>> = sk.clone();
(0..atk_compressed.rank()).for_each(|i| {
module.vec_znx_automorphism(
module.galois_element_inv(p),
&mut sk_out.data.as_vec_znx_mut(),
i,
&sk.data.as_vec_znx(),
i,
);
});
let sk_out_exec = GLWESecretExec::from(module, &sk_out);
let mut atk: AutomorphismKey<Vec<u8>> = AutomorphismKey::alloc(module, basek, k_ksk, rows, digits, rank);
atk.decompress(module, &atk_compressed);
atk.key
.key
.assert_noise(module, &sk_out_exec, &sk.data, sigma);
}
fn test_automorphism(
pub(crate) fn test_gglwe_automorphism<B: Backend>(
module: &Module<B>,
p0: i64,
p1: i64,
log_n: usize,
basek: usize,
digits: usize,
k_in: usize,
@@ -55,9 +170,10 @@ fn test_automorphism(
k_apply: usize,
sigma: f64,
rank: usize,
) {
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
) where
Module<B>: AutomorphismTestModuleFamily<B>,
B: AutomorphismTestScratchFamily<B>,
{
let digits_in: usize = 1;
let rows_in: usize = k_in / (basek * digits);
@@ -71,7 +187,7 @@ fn test_automorphism(
let mut source_xe: Source = Source::new([0u8; 32]);
let mut source_xa: Source = Source::new([0u8; 32]);
let mut scratch: ScratchOwned<FFT64> = ScratchOwned::alloc(
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(
AutomorphismKey::encrypt_sk_scratch_space(&module, basek, k_apply, rank)
| AutomorphismKey::automorphism_scratch_space(&module, basek, k_out, k_in, k_apply, digits, rank),
);
@@ -101,7 +217,7 @@ fn test_automorphism(
scratch.borrow(),
);
let mut auto_key_apply_exec: AutomorphismKeyExec<Vec<u8>, FFT64> =
let mut auto_key_apply_exec: AutomorphismKeyExec<Vec<u8>, B> =
AutomorphismKeyExec::alloc(&module, basek, k_apply, rows_apply, digits, rank);
auto_key_apply_exec.prepare(&module, &auto_key_apply, scratch.borrow());
@@ -119,16 +235,16 @@ fn test_automorphism(
let mut sk_auto: GLWESecret<Vec<u8>> = GLWESecret::alloc(&module, rank);
sk_auto.fill_zero(); // Necessary to avoid panic of unfilled sk
(0..rank).for_each(|i| {
module.scalar_znx_automorphism(
module.vec_znx_automorphism(
module.galois_element_inv(p0 * p1),
&mut sk_auto.data,
&mut sk_auto.data.as_vec_znx_mut(),
i,
&sk.data,
&sk.data.as_vec_znx(),
i,
);
});
let sk_auto_dft: GLWESecretExec<Vec<u8>, FFT64> = GLWESecretExec::from(&module, &sk_auto);
let sk_auto_dft: GLWESecretExec<Vec<u8>, B> = GLWESecretExec::from(&module, &sk_auto);
(0..auto_key_out.rank_in()).for_each(|col_i| {
(0..auto_key_out.rows()).for_each(|row_i| {
@@ -168,19 +284,20 @@ fn test_automorphism(
});
}
fn test_automorphism_inplace(
pub(crate) fn test_gglwe_automorphism_inplace<B: Backend>(
module: &Module<B>,
p0: i64,
p1: i64,
log_n: usize,
basek: usize,
digits: usize,
k_in: usize,
k_apply: usize,
sigma: f64,
rank: usize,
) {
let module: Module<FFT64> = Module::<FFT64>::new(1 << log_n);
) where
Module<B>: AutomorphismTestModuleFamily<B>,
B: AutomorphismTestScratchFamily<B>,
{
let digits_in: usize = 1;
let rows_in: usize = k_in / (basek * digits);
@@ -193,7 +310,7 @@ fn test_automorphism_inplace(
let mut source_xe: Source = Source::new([0u8; 32]);
let mut source_xa: Source = Source::new([0u8; 32]);
let mut scratch: ScratchOwned<FFT64> = ScratchOwned::alloc(
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(
AutomorphismKey::encrypt_sk_scratch_space(&module, basek, k_apply, rank)
| AutomorphismKey::automorphism_inplace_scratch_space(&module, basek, k_in, k_apply, digits, rank),
);
@@ -223,7 +340,7 @@ fn test_automorphism_inplace(
scratch.borrow(),
);
let mut auto_key_apply_exec: AutomorphismKeyExec<Vec<u8>, FFT64> =
let mut auto_key_apply_exec: AutomorphismKeyExec<Vec<u8>, B> =
AutomorphismKeyExec::alloc(&module, basek, k_apply, rows_apply, digits, rank);
auto_key_apply_exec.prepare(&module, &auto_key_apply, scratch.borrow());
@@ -237,16 +354,16 @@ fn test_automorphism_inplace(
sk_auto.fill_zero(); // Necessary to avoid panic of unfilled sk
(0..rank).for_each(|i| {
module.scalar_znx_automorphism(
module.vec_znx_automorphism(
module.galois_element_inv(p0 * p1),
&mut sk_auto.data,
&mut sk_auto.data.as_vec_znx_mut(),
i,
&sk.data,
&sk.data.as_vec_znx(),
i,
);
});
let sk_auto_dft: GLWESecretExec<Vec<u8>, FFT64> = GLWESecretExec::from(&module, &sk_auto);
let sk_auto_dft: GLWESecretExec<Vec<u8>, B> = GLWESecretExec::from(&module, &sk_auto);
(0..auto_key.rank_in()).for_each(|col_i| {
(0..auto_key.rows()).for_each(|row_i| {

72
core/src/gglwe/test/gglwe_generic.rs → core/src/gglwe/tests/generics_gglwe.rs
View File

@@ -1,7 +1,8 @@
use backend::hal::{
api::{
MatZnxAlloc, ScalarZnxAlloc, ScalarZnxAllocBytes, ScratchOwnedAlloc, ScratchOwnedBorrow, VecZnxAddScalarInplace,
VecZnxAlloc, VecZnxAllocBytes, VecZnxRotateInplace, VecZnxStd, VecZnxSubScalarInplace, VecZnxSwithcDegree, ZnxViewMut,
VecZnxAlloc, VecZnxAllocBytes, VecZnxCopy, VecZnxRotateInplace, VecZnxStd, VecZnxSubScalarInplace, VecZnxSwithcDegree,
ZnxViewMut,
},
layouts::{Backend, Module, ScalarZnx, ScalarZnxToMut, ScratchOwned},
oep::{
@@ -13,7 +14,7 @@ use sampling::source::Source;
use crate::{
GGLWEEncryptSkFamily, GGLWEExecLayoutFamily, GGSWCiphertext, GGSWCiphertextExec, GGSWLayoutFamily, GLWEDecryptFamily,
GLWEExternalProductFamily, GLWEKeyswitchFamily, GLWESecret, GLWESecretExec, GLWESwitchingKey,
GLWEExternalProductFamily, GLWEKeyswitchFamily, GLWESecret, GLWESecretExec, GLWESwitchingKey, GLWESwitchingKeyCompressed,
GLWESwitchingKeyEncryptSkFamily, GLWESwitchingKeyExec,
noise::{log2_std_noise_gglwe_product, noise_ggsw_product},
};
@@ -28,7 +29,8 @@ pub(crate) trait TestModuleFamily<B: Backend> = GGLWEEncryptSkFamily<B>
+ VecZnxAddScalarInplace
+ VecZnxStd
+ VecZnxAlloc
+ VecZnxSubScalarInplace;
+ VecZnxSubScalarInplace
+ VecZnxCopy;
pub(crate) trait TestScratchFamily<B: Backend> = TakeVecZnxDftImpl<B>
+ TakeVecZnxBigImpl<B>
@@ -42,7 +44,7 @@ pub(crate) trait TestScratchFamily<B: Backend> = TakeVecZnxDftImpl<B>
+ VecZnxBigAllocBytesImpl<B>
+ TakeSvpPPolImpl<B>;
pub(crate) fn test_encrypt_sk<B: Backend>(
pub(crate) fn test_gglwe_encrypt_sk<B: Backend>(
module: &Module<B>,
basek: usize,
k_ksk: usize,
@@ -87,7 +89,57 @@ pub(crate) fn test_encrypt_sk<B: Backend>(
.assert_noise(module, &sk_out_exec, &sk_in.data, sigma);
}
pub(crate) fn test_keyswitch<B: Backend>(
pub(crate) fn test_gglwe_encrypt_sk_compressed<B: Backend>(
module: &Module<B>,
basek: usize,
k_ksk: usize,
digits: usize,
rank_in: usize,
rank_out: usize,
sigma: f64,
) where
Module<B>: TestModuleFamily<B>,
B: TestScratchFamily<B>,
{
let rows: usize = (k_ksk - digits * basek) / (digits * basek);
let mut ksk_compressed: GLWESwitchingKeyCompressed<Vec<u8>> =
GLWESwitchingKeyCompressed::alloc(module, basek, k_ksk, rows, digits, rank_in, rank_out);
let mut source_xs: Source = Source::new([0u8; 32]);
let mut source_xe: Source = Source::new([0u8; 32]);
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(GLWESwitchingKeyCompressed::encrypt_sk_scratch_space(
module, basek, k_ksk, rank_in, rank_out,
));
let mut sk_in: GLWESecret<Vec<u8>> = GLWESecret::alloc(module, rank_in);
sk_in.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_out: GLWESecret<Vec<u8>> = GLWESecret::alloc(module, rank_out);
sk_out.fill_ternary_prob(0.5, &mut source_xs);
let sk_out_exec: GLWESecretExec<Vec<u8>, B> = GLWESecretExec::from(module, &sk_out);
let seed_xa = [1u8; 32];
ksk_compressed.encrypt_sk(
module,
&sk_in,
&sk_out,
seed_xa,
&mut source_xe,
sigma,
scratch.borrow(),
);
let mut ksk: GLWESwitchingKey<Vec<u8>> = GLWESwitchingKey::alloc(module, basek, k_ksk, rows, digits, rank_in, rank_out);
ksk.decompress(module, &ksk_compressed);
ksk.key
.assert_noise(module, &sk_out_exec, &sk_in.data, sigma);
}
pub(crate) fn test_gglwe_keyswitch<B: Backend>(
module: &Module<B>,
basek: usize,
k_out: usize,
@@ -217,7 +269,7 @@ pub(crate) fn test_keyswitch<B: Backend>(
.assert_noise(module, &sk2_exec, &sk0.data, max_noise + 0.5);
}
pub(crate) fn test_keyswitch_inplace<B: Backend>(
pub(crate) fn test_gglwe_keyswitch_inplace<B: Backend>(
module: &Module<B>,
basek: usize,
k_ct: usize,
@@ -317,7 +369,7 @@ pub(crate) fn test_keyswitch_inplace<B: Backend>(
.assert_noise(module, &sk2_exec, &sk0.data, max_noise + 0.5);
}
pub(crate) fn test_external_product<B: Backend>(
pub(crate) fn test_gglwe_external_product<B: Backend>(
module: &Module<B>,
basek: usize,
k_out: usize,
@@ -400,7 +452,7 @@ pub(crate) fn test_external_product<B: Backend>(
ct_gglwe_out.external_product(module, &ct_gglwe_in, &ct_rgsw_exec, scratch.borrow());
(0..rank_in).for_each(|i| {
module.vec_znx_rotate_inplace(r as i64, &mut sk_in.data, i); // * X^{r}
module.vec_znx_rotate_inplace(r as i64, &mut sk_in.data.as_vec_znx_mut(), i); // * X^{r}
});
let var_gct_err_lhs: f64 = sigma * sigma;
@@ -429,7 +481,7 @@ pub(crate) fn test_external_product<B: Backend>(
.assert_noise(module, &sk_out_exec, &sk_in.data, max_noise + 0.5);
}
pub(crate) fn test_external_product_inplace<B: Backend>(
pub(crate) fn test_gglwe_external_product_inplace<B: Backend>(
module: &Module<B>,
basek: usize,
k_ct: usize,
@@ -510,7 +562,7 @@ pub(crate) fn test_external_product_inplace<B: Backend>(
ct_gglwe.external_product_inplace(module, &ct_rgsw_exec, scratch.borrow());
(0..rank_in).for_each(|i| {
module.vec_znx_rotate_inplace(r as i64, &mut sk_in.data, i); // * X^{r}
module.vec_znx_rotate_inplace(r as i64, &mut sk_in.data.as_vec_znx_mut(), i); // * X^{r}
});
let var_gct_err_lhs: f64 = sigma * sigma;

108
core/src/gglwe/test/tensor_key_generic.rs → core/src/gglwe/tests/generics_tensor_key.rs
View File

@@ -1,7 +1,8 @@
use backend::hal::{
api::{
MatZnxAlloc, ScalarZnxAlloc, ScalarZnxAllocBytes, ScratchOwnedAlloc, ScratchOwnedBorrow, VecZnxAddScalarInplace,
VecZnxAlloc, VecZnxAllocBytes, VecZnxBigAlloc, VecZnxDftAlloc, VecZnxStd, VecZnxSubScalarInplace, VecZnxSwithcDegree,
VecZnxAlloc, VecZnxAllocBytes, VecZnxBigAlloc, VecZnxCopy, VecZnxDftAlloc, VecZnxStd, VecZnxSubScalarInplace,
VecZnxSwithcDegree,
},
layouts::{Backend, Module, ScratchOwned, VecZnxDft},
oep::{
@@ -13,7 +14,7 @@ use sampling::source::Source;
use crate::{
GGLWEEncryptSkFamily, GGLWEExecLayoutFamily, GLWEDecryptFamily, GLWEPlaintext, GLWESecret, GLWESecretExec, GLWETensorKey,
GLWETensorKeyEncryptSkFamily, Infos,
GLWETensorKeyCompressed, GLWETensorKeyEncryptSkFamily, Infos,
};
pub(crate) trait TestModuleFamily<B: Backend> = GGLWEEncryptSkFamily<B>
@@ -40,7 +41,7 @@ pub(crate) trait TestScratchFamily<B: Backend> = TakeVecZnxDftImpl<B>
+ VecZnxBigAllocBytesImpl<B>
+ TakeSvpPPolImpl<B>;
pub(crate) fn test_encrypt_sk<B: Backend>(module: &Module<B>, basek: usize, k: usize, sigma: f64, rank: usize)
pub(crate) fn test_tensor_key_encrypt_sk<B: Backend>(module: &Module<B>, basek: usize, k: usize, sigma: f64, rank: usize)
where
Module<B>: TestModuleFamily<B>
+ GGLWEExecLayoutFamily<B>
@@ -87,14 +88,111 @@ where
let mut sk_dft: VecZnxDft<Vec<u8>, B> = module.vec_znx_dft_alloc(rank, 1);
(0..rank).for_each(|i| {
module.vec_znx_dft_from_vec_znx(1, 0, &mut sk_dft, i, &sk.data, i);
module.vec_znx_dft_from_vec_znx(1, 0, &mut sk_dft, i, &sk.data.as_vec_znx(), i);
});
(0..rank).for_each(|i| {
(0..rank).for_each(|j| {
module.svp_apply(&mut sk_ij_dft, 0, &sk_exec.data, j, &sk_dft, i);
module.vec_znx_dft_to_vec_znx_big_tmp_a(&mut sk_ij_big, 0, &mut sk_ij_dft, 0);
module.vec_znx_big_normalize(basek, &mut sk_ij.data, 0, &sk_ij_big, 0, scratch.borrow());
module.vec_znx_big_normalize(
basek,
&mut sk_ij.data.as_vec_znx_mut(),
0,
&sk_ij_big,
0,
scratch.borrow(),
);
(0..tensor_key.rank_in()).for_each(|col_i| {
(0..tensor_key.rows()).for_each(|row_i| {
tensor_key
.at(i, j)
.at(row_i, col_i)
.decrypt(&module, &mut pt, &sk_exec, scratch.borrow());
module.vec_znx_sub_scalar_inplace(&mut pt.data, 0, row_i, &sk_ij.data, col_i);
let std_pt: f64 = module.vec_znx_std(basek, &pt.data, 0) * (k as f64).exp2();
assert!((sigma - std_pt).abs() <= 0.5, "{} {}", sigma, std_pt);
});
});
})
})
}
pub(crate) fn test_tensor_key_encrypt_sk_compressed<B: Backend>(
module: &Module<B>,
basek: usize,
k: usize,
sigma: f64,
rank: usize,
) where
Module<B>: TestModuleFamily<B>
+ GGLWEExecLayoutFamily<B>
+ GLWETensorKeyEncryptSkFamily<B>
+ GLWEDecryptFamily<B>
+ VecZnxDftAlloc<B>
+ VecZnxBigAlloc<B>
+ VecZnxCopy,
B: TestScratchFamily<B>,
{
let rows: usize = k / basek;
let mut tensor_key_compressed: GLWETensorKeyCompressed<Vec<u8>> =
GLWETensorKeyCompressed::alloc(&module, basek, k, rows, 1, rank);
let mut source_xs: Source = Source::new([0u8; 32]);
let mut source_xe: Source = Source::new([0u8; 32]);
let mut scratch: ScratchOwned<B> = ScratchOwned::alloc(GLWETensorKeyCompressed::encrypt_sk_scratch_space(
module,
basek,
tensor_key_compressed.k(),
rank,
));
let mut sk: GLWESecret<Vec<u8>> = GLWESecret::alloc(&module, rank);
sk.fill_ternary_prob(0.5, &mut source_xs);
let mut sk_exec: GLWESecretExec<Vec<u8>, B> = GLWESecretExec::from(&module, &sk);
sk_exec.prepare(module, &sk);
let seed_xa: [u8; 32] = [1u8; 32];
tensor_key_compressed.encrypt_sk(
module,
&sk,
seed_xa,
&mut source_xe,
sigma,
scratch.borrow(),
);
let mut tensor_key: GLWETensorKey<Vec<u8>> = GLWETensorKey::alloc(&module, basek, k, rows, 1, rank);
tensor_key.decompress(module, &tensor_key_compressed);
let mut pt: GLWEPlaintext<Vec<u8>> = GLWEPlaintext::alloc(&module, basek, k);
let mut sk_ij_dft = module.vec_znx_dft_alloc(1, 1);
let mut sk_ij_big = module.vec_znx_big_alloc(1, 1);
let mut sk_ij: GLWESecret<Vec<u8>> = GLWESecret::alloc(&module, 1);
let mut sk_dft: VecZnxDft<Vec<u8>, B> = module.vec_znx_dft_alloc(rank, 1);
(0..rank).for_each(|i| {
module.vec_znx_dft_from_vec_znx(1, 0, &mut sk_dft, i, &sk.data.as_vec_znx(), i);
});
(0..rank).for_each(|i| {
(0..rank).for_each(|j| {
module.svp_apply(&mut sk_ij_dft, 0, &sk_exec.data, j, &sk_dft, i);
module.vec_znx_dft_to_vec_znx_big_tmp_a(&mut sk_ij_big, 0, &mut sk_ij_dft, 0);
module.vec_znx_big_normalize(
basek,
&mut sk_ij.data.as_vec_znx_mut(),
0,
&sk_ij_big,
0,
scratch.borrow(),
);
(0..tensor_key.rank_in()).for_each(|col_i| {
(0..tensor_key.rows()).for_each(|row_i| {
tensor_key

4
core/src/gglwe/tests/mod.rs Normal file
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mod cpu_spqlios;
mod generics_automorphism_key;
mod generics_gglwe;
mod generics_tensor_key;