Struct concrete_core::backends::default::entities::GlweSecretKey64

pub struct GlweSecretKey64(_);

A structure representing a GLWE secret key with 64 bits of precision.

Trait Implementations

impl AbstractEntity for GlweSecretKey64

type Kind = GlweSecretKeyKind

The kind of the entity.

impl Clone for GlweSecretKey64

fn clone(&self) -> GlweSecretKey64

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GlweSecretKey64

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl EntityDeserializationEngine<&[u8], GlweSecretKey64> for DefaultSerializationEngine

Description:

Implementation of EntityDeserializationEngine for DefaultSerializationEngine that operates on 64 bits integers. It deserializes a GLWE secret key entity.

fn deserialize(
    &mut self,
    serialized: &[u8]
) -> Result<GlweSecretKey64, EntityDeserializationError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let glwe_secret_key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;

let mut serialization_engine = DefaultSerializationEngine::new(())?;
let serialized = serialization_engine.serialize(&glwe_secret_key)?;
let recovered = serialization_engine.deserialize(serialized.as_slice())?;
assert_eq!(glwe_secret_key, recovered);

unsafe fn deserialize_unchecked(&mut self, serialized: &[u8]) -> GlweSecretKey64

Unsafely deserializes an entity.

impl EntitySerializationEngine<GlweSecretKey64, Vec<u8, Global>> for DefaultSerializationEngine

Description:

Implementation of EntitySerializationEngine for DefaultSerializationEngine that operates on 64 bits integers. It serializes a GLWE secret key entity.

fn serialize(
    &mut self,
    entity: &GlweSecretKey64
) -> Result<Vec<u8>, EntitySerializationError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let glwe_secret_key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;

let mut serialization_engine = DefaultSerializationEngine::new(())?;
let serialized = serialization_engine.serialize(&glwe_secret_key)?;
let recovered = serialization_engine.deserialize(serialized.as_slice())?;
assert_eq!(glwe_secret_key, recovered);

unsafe fn serialize_unchecked(&mut self, entity: &GlweSecretKey64) -> Vec<u8>

Unsafely serializes an entity.

impl GgswCiphertextScalarDiscardingEncryptionEngine<GlweSecretKey64, Plaintext64, GgswCiphertext64> for DefaultEngine

Description:

Implementation of GgswCiphertextScalarDiscardingEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn discard_encrypt_scalar_ggsw_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut GgswCiphertext64,
    input: &Plaintext64,
    noise: Variance
) -> Result<(), GgswCiphertextScalarDiscardingEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, GlweDimension, PolynomialSize, Variance, *,
};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
let level = DecompositionLevelCount(1);
let base_log = DecompositionBaseLog(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = 3_u64 << 50;
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key_1: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext = engine.create_plaintext_from(&input)?;
let mut ciphertext =
    engine.encrypt_scalar_ggsw_ciphertext(&key_1, &plaintext, noise, level, base_log)?;
// We're going to re-encrypt the input with another secret key
// For this, it is required that the second secret key uses the same GLWE dimension
// and polynomial size as the first one.
let key_2: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;

engine.discard_encrypt_scalar_ggsw_ciphertext(&key_2, &mut ciphertext, &plaintext, noise)?;
assert_eq!(ciphertext.glwe_dimension(), glwe_dimension);
assert_eq!(ciphertext.polynomial_size(), polynomial_size);

unsafe fn discard_encrypt_scalar_ggsw_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut GgswCiphertext64,
    input: &Plaintext64,
    noise: Variance
)

Unsafely encrypts a GGSW ciphertext.

impl GgswCiphertextScalarEncryptionEngine<GlweSecretKey64, Plaintext64, GgswCiphertext64> for DefaultEngine

Description:

Implementation of GgswCiphertextScalarEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn encrypt_scalar_ggsw_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    input: &Plaintext64,
    noise: Variance,
    decomposition_level_count: DecompositionLevelCount,
    decomposition_base_log: DecompositionBaseLog
) -> Result<GgswCiphertext64, GgswCiphertextScalarEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, GlweDimension, PolynomialSize, Variance, *,
};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
let level = DecompositionLevelCount(1);
let base_log = DecompositionBaseLog(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = 3_u64 << 50;
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext = engine.create_plaintext_from(&input)?;

let ciphertext =
    engine.encrypt_scalar_ggsw_ciphertext(&key, &plaintext, noise, level, base_log)?;
assert_eq!(ciphertext.glwe_dimension(), glwe_dimension);
assert_eq!(ciphertext.polynomial_size(), polynomial_size);

unsafe fn encrypt_scalar_ggsw_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &Plaintext64,
    noise: Variance,
    decomposition_level_count: DecompositionLevelCount,
    decomposition_base_log: DecompositionBaseLog
) -> GgswCiphertext64

Unsafely encrypts a plaintext vector into a GGSW ciphertext.

impl GlweCiphertextDecryptionEngine<GlweSecretKey64, GlweCiphertext64, PlaintextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextDecryptionEngine for DefaultEngine that operates on 64 bits integers.

fn decrypt_glwe_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    input: &GlweCiphertext64
) -> Result<PlaintextVector64, GlweCiphertextDecryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{GlweDimension, PolynomialSize};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; polynomial_size.0];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;
let ciphertext = engine.encrypt_glwe_ciphertext(&key, &plaintext_vector, noise)?;

let decrypted_plaintext_vector = engine.decrypt_glwe_ciphertext(&key, &ciphertext)?;
assert_eq!(

unsafe fn decrypt_glwe_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &GlweCiphertext64
) -> PlaintextVector64

Unsafely decrypts a GLWE ciphertext into a plaintext vector.

impl GlweCiphertextDiscardingDecryptionEngine<GlweSecretKey64, GlweCiphertext64, PlaintextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextDiscardingDecryptionEngine for DefaultEngine that operates on 64 bits integers.

fn discard_decrypt_glwe_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut PlaintextVector64,
    input: &GlweCiphertext64
) -> Result<(), GlweCiphertextDiscardingDecryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PlaintextCount, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let mut input = vec![3_u64 << 50; polynomial_size.0];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let mut plaintext_vector = engine.create_plaintext_vector_from(&input)?;
let ciphertext = engine.encrypt_glwe_ciphertext(&key, &plaintext_vector, noise)?;

engine.discard_decrypt_glwe_ciphertext(&key, &mut plaintext_vector, &ciphertext)?;
assert_eq!(plaintext_vector.plaintext_count(), PlaintextCount(4));

unsafe fn discard_decrypt_glwe_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut PlaintextVector64,
    input: &GlweCiphertext64
)

Unsafely decrypts a GLWE ciphertext .

impl GlweCiphertextDiscardingEncryptionEngine<GlweSecretKey64, PlaintextVector64, GlweCiphertext64> for DefaultEngine

Description:

Implementation of GlweCiphertextDiscardingEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn discard_encrypt_glwe_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut GlweCiphertext64,
    input: &PlaintextVector64,
    noise: Variance
) -> Result<(), GlweCiphertextDiscardingEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; 4];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key_1: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;
let mut ciphertext = engine.encrypt_glwe_ciphertext(&key_1, &plaintext_vector, noise)?;
// We're going to re-encrypt the input with another secret key
// For this, it is required that the second secret key uses the same GLWE dimension
// and polynomial size as the first one.
let key_2: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;

engine.discard_encrypt_glwe_ciphertext(&key_2, &mut ciphertext, &plaintext_vector, noise)?;
assert_eq!(ciphertext.glwe_dimension(), glwe_dimension);
assert_eq!(ciphertext.polynomial_size(), polynomial_size);

unsafe fn discard_encrypt_glwe_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut GlweCiphertext64,
    input: &PlaintextVector64,
    noise: Variance
)

Unsafely encrypts a GLWE ciphertext .

impl GlweCiphertextEncryptionEngine<GlweSecretKey64, PlaintextVector64, GlweCiphertext64> for DefaultEngine

Description:

Implementation of GlweCiphertextEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn encrypt_glwe_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> Result<GlweCiphertext64, GlweCiphertextEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// There are always polynomial_size messages encrypted in the GLWE ciphertext
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; polynomial_size.0];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;

let ciphertext = engine.encrypt_glwe_ciphertext(&key, &plaintext_vector, noise)?;
assert_eq!(ciphertext.glwe_dimension(), glwe_dimension);
assert_eq!(ciphertext.polynomial_size(), polynomial_size);

unsafe fn encrypt_glwe_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> GlweCiphertext64

Unsafely encrypts a plaintext vector into a GLWE ciphertext.

impl GlweCiphertextVectorDecryptionEngine<GlweSecretKey64, GlweCiphertextVector64, PlaintextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextVectorDecryptionEngine for DefaultEngine that operates on 64 bits integers.

fn decrypt_glwe_ciphertext_vector(
    &mut self,
    key: &GlweSecretKey64,
    input: &GlweCiphertextVector64
) -> Result<PlaintextVector64, GlweCiphertextVectorDecryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{GlweDimension, PlaintextCount, PolynomialSize};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; 8];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;
let ciphertext_vector =
    engine.encrypt_glwe_ciphertext_vector(&key, &plaintext_vector, noise)?;

let decrypted_plaintext_vector =
    engine.decrypt_glwe_ciphertext_vector(&key, &ciphertext_vector)?;
assert_eq!(

unsafe fn decrypt_glwe_ciphertext_vector_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &GlweCiphertextVector64
) -> PlaintextVector64

Unsafely decrypts a GLWE ciphertext vector.

impl GlweCiphertextVectorDiscardingDecryptionEngine<GlweSecretKey64, GlweCiphertextVector64, PlaintextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextVectorDiscardingDecryptionEngine for DefaultEngine that operates on 64 bits integers.

fn discard_decrypt_glwe_ciphertext_vector(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut PlaintextVector64,
    input: &GlweCiphertextVector64
) -> Result<(), GlweCiphertextVectorDiscardingDecryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PlaintextCount, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; 8];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let mut plaintext_vector = engine.create_plaintext_vector_from(&input)?;
let ciphertext_vector =
    engine.encrypt_glwe_ciphertext_vector(&key, &plaintext_vector, noise)?;

engine.discard_decrypt_glwe_ciphertext_vector(
    &key,
    &mut plaintext_vector,
    &ciphertext_vector,
)?;
assert_eq!(plaintext_vector.plaintext_count(), PlaintextCount(8));

unsafe fn discard_decrypt_glwe_ciphertext_vector_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut PlaintextVector64,
    input: &GlweCiphertextVector64
)

Unsafely encrypts a GLWE ciphertext vector .

impl GlweCiphertextVectorDiscardingEncryptionEngine<GlweSecretKey64, PlaintextVector64, GlweCiphertextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextVectorDiscardingEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn discard_encrypt_glwe_ciphertext_vector(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut GlweCiphertextVector64,
    input: &PlaintextVector64,
    noise: Variance
) -> Result<(), GlweCiphertextVectorDiscardingEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{GlweCiphertextCount, GlweDimension, PolynomialSize};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; 8];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key_1: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let key_2: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;
let mut ciphertext_vector =
    engine.encrypt_glwe_ciphertext_vector(&key_1, &plaintext_vector, noise)?;

engine.discard_encrypt_glwe_ciphertext_vector(
    &key_2,
    &mut ciphertext_vector,
    &plaintext_vector,
    noise,
)?;
assert_eq!(ciphertext_vector.glwe_dimension(), glwe_dimension);
assert_eq!(ciphertext_vector.polynomial_size(), polynomial_size);
assert_eq!(

unsafe fn discard_encrypt_glwe_ciphertext_vector_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    output: &mut GlweCiphertextVector64,
    input: &PlaintextVector64,
    noise: Variance
)

Unsafely encrypts a GLWE ciphertext vector .

impl GlweCiphertextVectorEncryptionEngine<GlweSecretKey64, PlaintextVector64, GlweCiphertextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextVectorEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn encrypt_glwe_ciphertext_vector(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> Result<GlweCiphertextVector64, GlweCiphertextVectorEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{GlweCiphertextCount, GlweDimension, PolynomialSize};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; 8];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;

let ciphertext_vector =
    engine.encrypt_glwe_ciphertext_vector(&key, &plaintext_vector, noise)?;
assert_eq!(
assert_eq!(ciphertext_vector.polynomial_size(), polynomial_size);
assert_eq!(ciphertext_vector.glwe_dimension(), glwe_dimension);

unsafe fn encrypt_glwe_ciphertext_vector_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> GlweCiphertextVector64

Unsafely encrypts a GLWE ciphertext vector.

impl GlweCiphertextVectorZeroEncryptionEngine<GlweSecretKey64, GlweCiphertextVector64> for DefaultEngine

Description:

Implementation of GlweCiphertextVectorZeroEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn zero_encrypt_glwe_ciphertext_vector(
    &mut self,
    key: &GlweSecretKey64,
    noise: Variance,
    count: GlweCiphertextCount
) -> Result<GlweCiphertextVector64, GlweCiphertextVectorZeroEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweCiphertextCount, GlweDimension, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(1024);
let ciphertext_count = GlweCiphertextCount(3);
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;

let ciphertext_vector =
    engine.zero_encrypt_glwe_ciphertext_vector(&key, noise, ciphertext_count)?;
assert_eq!(ciphertext_vector.glwe_ciphertext_count(), ciphertext_count);
assert_eq!(ciphertext_vector.polynomial_size(), polynomial_size);
assert_eq!(ciphertext_vector.glwe_dimension(), glwe_dimension);

unsafe fn zero_encrypt_glwe_ciphertext_vector_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    noise: Variance,
    count: GlweCiphertextCount
) -> GlweCiphertextVector64

Unsafely encrypts zero in a GLWE ciphertext vector.

impl GlweCiphertextZeroEncryptionEngine<GlweSecretKey64, GlweCiphertext64> for DefaultEngine

Description:

Implementation of GlweCiphertextZeroEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn zero_encrypt_glwe_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    noise: Variance
) -> Result<GlweCiphertext64, GlweCiphertextZeroEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(1024);
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;

let ciphertext = engine.zero_encrypt_glwe_ciphertext(&key, noise)?;
assert_eq!(ciphertext.glwe_dimension(), glwe_dimension);
assert_eq!(ciphertext.polynomial_size(), polynomial_size);

unsafe fn zero_encrypt_glwe_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    noise: Variance
) -> GlweCiphertext64

Unsafely encrypts a zero in a GLWE ciphertext.

impl GlweSecretKeyEntity for GlweSecretKey64

fn glwe_dimension(&self) -> GlweDimension

Returns the GLWE dimension of the key.

fn polynomial_size(&self) -> PolynomialSize

Returns the polynomial size of the key.

impl GlweSecretKeyGenerationEngine<GlweSecretKey64> for DefaultEngine

Description:

Implementation of GlweSecretKeyGenerationEngine for DefaultEngine that operates on 64 bits integers.

fn generate_new_glwe_secret_key(
    &mut self,
    glwe_dimension: GlweDimension,
    polynomial_size: PolynomialSize
) -> Result<GlweSecretKey64, GlweSecretKeyGenerationError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let glwe_secret_key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
assert_eq!(glwe_secret_key.glwe_dimension(), glwe_dimension);
assert_eq!(glwe_secret_key.polynomial_size(), polynomial_size);

unsafe fn generate_new_glwe_secret_key_unchecked(
    &mut self,
    glwe_dimension: GlweDimension,
    polynomial_size: PolynomialSize
) -> GlweSecretKey64

Unsafely generates a new GLWE secret key.

impl GlweSeededCiphertextEncryptionEngine<GlweSecretKey64, PlaintextVector64, GlweSeededCiphertext64> for DefaultEngine

Description:

Implementation of GlweSeededCiphertextEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn encrypt_glwe_seeded_ciphertext(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> Result<GlweSeededCiphertext64, GlweSeededCiphertextEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::{GlweDimension, PolynomialSize, Variance, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// There are always polynomial_size messages encrypted in the GLWE ciphertext
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; polynomial_size.0];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;

let seeded_ciphertext =
    engine.encrypt_glwe_seeded_ciphertext(&key, &plaintext_vector, noise)?;
assert_eq!(seeded_ciphertext.glwe_dimension(), glwe_dimension);
assert_eq!(seeded_ciphertext.polynomial_size(), polynomial_size);

unsafe fn encrypt_glwe_seeded_ciphertext_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> GlweSeededCiphertext64

Unsafely encrypts a seeded GLWE ciphertext.

impl GlweSeededCiphertextVectorEncryptionEngine<GlweSecretKey64, PlaintextVector64, GlweSeededCiphertextVector64> for DefaultEngine

Description:

Implementation of GlweSeededCiphertextVectorEncryptionEngine for DefaultEngine that operates on 64 bits integers.

fn encrypt_glwe_seeded_ciphertext_vector(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> Result<GlweSeededCiphertextVector64, GlweSeededCiphertextVectorEncryptionError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{GlweCiphertextCount, GlweDimension, PolynomialSize};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);
// Here a hard-set encoding is applied (shift by 50 bits)
let input = vec![3_u64 << 50; 8];
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
let plaintext_vector = engine.create_plaintext_vector_from(&input)?;

let seeded_ciphertext_vector =
    engine.encrypt_glwe_seeded_ciphertext_vector(&key, &plaintext_vector, noise)?;
assert_eq!(
assert_eq!(seeded_ciphertext_vector.polynomial_size(), polynomial_size);
assert_eq!(seeded_ciphertext_vector.glwe_dimension(), glwe_dimension);

unsafe fn encrypt_glwe_seeded_ciphertext_vector_unchecked(
    &mut self,
    key: &GlweSecretKey64,
    input: &PlaintextVector64,
    noise: Variance
) -> GlweSeededCiphertextVector64

Unsafely encrypts a GLWE seeded ciphertext vector.

impl GlweToLweSecretKeyTransformationEngine<GlweSecretKey64, LweSecretKey64> for DefaultEngine

fn transform_glwe_secret_key_to_lwe_secret_key(
    &mut self,
    glwe_secret_key: GlweSecretKey64
) -> Result<LweSecretKey64, GlweToLweSecretKeyTransformationError<Self::EngineError>>

Example

use concrete_core::prelude::{GlweDimension, LweDimension, PolynomialSize, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let glwe_dimension = GlweDimension(2);
let polynomial_size = PolynomialSize(4);

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;

let glwe_secret_key: GlweSecretKey64 =
    engine.generate_new_glwe_secret_key(glwe_dimension, polynomial_size)?;
assert_eq!(glwe_secret_key.glwe_dimension(), glwe_dimension);
assert_eq!(glwe_secret_key.polynomial_size(), polynomial_size);

let lwe_secret_key = engine.transform_glwe_secret_key_to_lwe_secret_key(glwe_secret_key)?;
assert_eq!(lwe_secret_key.lwe_dimension(), LweDimension(8));

unsafe fn transform_glwe_secret_key_to_lwe_secret_key_unchecked(
    &mut self,
    glwe_secret_key: GlweSecretKey64
) -> LweSecretKey64

Unsafely transforms a GLWE secret key into an LWE secret key

impl LweBootstrapKeyGenerationEngine<LweSecretKey64, GlweSecretKey64, LweBootstrapKey64> for DefaultEngine

Description:

Implementation of LweBootstrapKeyGenerationEngine for DefaultEngine that operates on 64 bits integers. It outputs a bootstrap key in the standard domain.

fn generate_new_lwe_bootstrap_key(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> Result<LweBootstrapKey64, LweBootstrapKeyGenerationError<Self::EngineError>>

Example

use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, GlweDimension, LweDimension, PolynomialSize,
    Variance, *,
};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let (lwe_dim, glwe_dim, poly_size) = (LweDimension(4), GlweDimension(6), PolynomialSize(256));
let (dec_lc, dec_bl) = (DecompositionLevelCount(3), DecompositionBaseLog(5));
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let lwe_sk: LweSecretKey64 = engine.generate_new_lwe_secret_key(lwe_dim)?;
let glwe_sk: GlweSecretKey64 = engine.generate_new_glwe_secret_key(glwe_dim, poly_size)?;

let bsk: LweBootstrapKey64 =
    engine.generate_new_lwe_bootstrap_key(&lwe_sk, &glwe_sk, dec_bl, dec_lc, noise)?;
assert_eq!(bsk.glwe_dimension(), glwe_dim);
assert_eq!(bsk.polynomial_size(), poly_size);
assert_eq!(bsk.input_lwe_dimension(), lwe_dim);
assert_eq!(bsk.decomposition_base_log(), dec_bl);
assert_eq!(bsk.decomposition_level_count(), dec_lc);

unsafe fn generate_new_lwe_bootstrap_key_unchecked(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> LweBootstrapKey64

Unsafely generates a new LWE bootstrap key.

impl LweBootstrapKeyGenerationEngine<LweSecretKey64, GlweSecretKey64, LweBootstrapKey64> for DefaultParallelEngine

Description:

Implementation of LweBootstrapKeyGenerationEngine for DefaultParallelEngine that operates on 64 bits integers. It outputs a bootstrap key in the standard domain.

fn generate_new_lwe_bootstrap_key(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> Result<LweBootstrapKey64, LweBootstrapKeyGenerationError<Self::EngineError>>

Example

use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, GlweDimension, LweDimension, PolynomialSize,
    Variance, *,
};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let (lwe_dim, glwe_dim, poly_size) = (LweDimension(4), GlweDimension(6), PolynomialSize(256));
let (dec_lc, dec_bl) = (DecompositionLevelCount(3), DecompositionBaseLog(5));
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut default_engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let mut default_parallel_engine =
    DefaultParallelEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let lwe_sk: LweSecretKey64 = default_engine.generate_new_lwe_secret_key(lwe_dim)?;
let glwe_sk: GlweSecretKey64 =
    default_engine.generate_new_glwe_secret_key(glwe_dim, poly_size)?;

let bsk: LweBootstrapKey64 = default_parallel_engine
    .generate_new_lwe_bootstrap_key(&lwe_sk, &glwe_sk, dec_bl, dec_lc, noise)?;
assert_eq!(bsk.glwe_dimension(), glwe_dim);
assert_eq!(bsk.polynomial_size(), poly_size);
assert_eq!(bsk.input_lwe_dimension(), lwe_dim);
assert_eq!(bsk.decomposition_base_log(), dec_bl);
assert_eq!(bsk.decomposition_level_count(), dec_lc);

unsafe fn generate_new_lwe_bootstrap_key_unchecked(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> LweBootstrapKey64

Unsafely generates a new LWE bootstrap key.

impl LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeysGenerationEngine<LweSecretKey64, GlweSecretKey64, LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64> for DefaultEngine

Description:

Implementation of LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeysGenerationEngine for DefaultEngine that operates on 64 bits integers.

fn generate_new_lwe_circuit_bootstrap_private_functional_packing_keyswitch_keys(
    &mut self,
    input_lwe_key: &LweSecretKey64,
    output_glwe_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> Result<LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64, LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeysGenerationError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, LweDimension, GlweDimension,FunctionalPackingKeyswitchKeyCount
};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let input_lwe_dimension = LweDimension(10);
let output_glwe_dimension = GlweDimension(3);
let polynomial_size = PolynomialSize(256);
let decomposition_base_log = DecompositionBaseLog(3);
let decomposition_level_count = DecompositionLevelCount(5);
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let input_key: LweSecretKey64 = engine.generate_new_lwe_secret_key(input_lwe_dimension)?;
let output_key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(output_glwe_dimension,
polynomial_size)?;

let cbs_private_functional_packing_keyswitch_key:
    LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64 =
    engine
    .generate_new_lwe_circuit_bootstrap_private_functional_packing_keyswitch_keys(
        &input_key,
        &output_key,
        decomposition_base_log,
        decomposition_level_count,
        noise,
)?;
assert_eq!(
assert_eq!(
assert_eq!(cbs_private_functional_packing_keyswitch_key.input_lwe_dimension(),
input_lwe_dimension);
assert_eq!(cbs_private_functional_packing_keyswitch_key.output_glwe_dimension(),
output_glwe_dimension);
assert_eq!(cbs_private_functional_packing_keyswitch_key.key_count().0,
output_glwe_dimension.to_glwe_size().0);

unsafe fn generate_new_lwe_circuit_bootstrap_private_functional_packing_keyswitch_keys_unchecked(
    &mut self,
    input_lwe_key: &LweSecretKey64,
    output_glwe_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64

Unsafely generate a new LWE CBSFPKSK.

impl LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeysGenerationEngine<LweSecretKey64, GlweSecretKey64, LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64> for DefaultParallelEngine

Description:

Implementation of LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeysGenerationEngine for DefaultParallelEngine that operates on 64 bits integers.

fn generate_new_lwe_circuit_bootstrap_private_functional_packing_keyswitch_keys(
    &mut self,
    input_lwe_key: &LweSecretKey64,
    output_glwe_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> Result<LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64, LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeysGenerationError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, LweDimension, GlweDimension,FunctionalPackingKeyswitchKeyCount
};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let input_lwe_dimension = LweDimension(10);
let output_glwe_dimension = GlweDimension(3);
let polynomial_size = PolynomialSize(256);
let decomposition_base_log = DecompositionBaseLog(3);
let decomposition_level_count = DecompositionLevelCount(5);
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut default_engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let mut default_parallel_engine =
    DefaultParallelEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let input_key: LweSecretKey64 = default_engine.generate_new_lwe_secret_key(input_lwe_dimension)?;
let output_key: GlweSecretKey64 = default_engine.generate_new_glwe_secret_key(output_glwe_dimension,
polynomial_size)?;

let cbs_private_functional_packing_keyswitch_key:
    LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64 =
    default_engine
    .generate_new_lwe_circuit_bootstrap_private_functional_packing_keyswitch_keys(
        &input_key,
        &output_key,
        decomposition_base_log,
        decomposition_level_count,
        noise,
)?;
assert_eq!(
assert_eq!(
assert_eq!(cbs_private_functional_packing_keyswitch_key.input_lwe_dimension(),
input_lwe_dimension);
assert_eq!(cbs_private_functional_packing_keyswitch_key.output_glwe_dimension(),
output_glwe_dimension);
assert_eq!(cbs_private_functional_packing_keyswitch_key.key_count().0,
output_glwe_dimension.to_glwe_size().0);

unsafe fn generate_new_lwe_circuit_bootstrap_private_functional_packing_keyswitch_keys_unchecked(
    &mut self,
    input_lwe_key: &LweSecretKey64,
    output_glwe_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> LweCircuitBootstrapPrivateFunctionalPackingKeyswitchKeys64

Unsafely generate a new LWE CBSFPKSK.

impl LwePackingKeyswitchKeyGenerationEngine<LweSecretKey64, GlweSecretKey64, LwePackingKeyswitchKey64> for DefaultEngine

Description:

Implementation of LwePackingKeyswitchKeyGenerationEngine for DefaultEngine that operates on 64 bits integers.

fn generate_new_lwe_packing_keyswitch_key(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_level_count: DecompositionLevelCount,
    decomposition_base_log: DecompositionBaseLog,
    noise: Variance
) -> Result<LwePackingKeyswitchKey64, LwePackingKeyswitchKeyGenerationError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, LweDimension,
};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let input_lwe_dimension = LweDimension(6);
let output_glwe_dimension = GlweDimension(3);
let output_polynomial_size = PolynomialSize(512);
let decomposition_level_count = DecompositionLevelCount(2);
let decomposition_base_log = DecompositionBaseLog(8);
let noise = Variance(2_f64.powf(-50.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let input_key: LweSecretKey64 = engine.generate_new_lwe_secret_key(input_lwe_dimension)?;
let output_key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(
    output_glwe_dimension,
    output_polynomial_size
)?;

let packing_keyswitch_key = engine.generate_new_lwe_packing_keyswitch_key(
    &input_key,
    &output_key,
    decomposition_level_count,
    decomposition_base_log,
    noise,
)?;
assert_eq!(
assert_eq!(
assert_eq!(packing_keyswitch_key.input_lwe_dimension(), input_lwe_dimension);
assert_eq!(packing_keyswitch_key.output_glwe_dimension(), output_glwe_dimension);
assert_eq!(packing_keyswitch_key.output_polynomial_size(), output_polynomial_size);

unsafe fn generate_new_lwe_packing_keyswitch_key_unchecked(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_level_count: DecompositionLevelCount,
    decomposition_base_log: DecompositionBaseLog,
    noise: Variance
) -> LwePackingKeyswitchKey64

Unsafely generates a new packing keyswitch key.

impl LwePrivateFunctionalLwePackingKeyswitchKeyGenerationEngine<LweSecretKey64, GlweSecretKey64, LwePrivateFunctionalPackingKeyswitchKey64, CleartextVector64, u64> for DefaultEngine

Description:

Implementation of LwePrivateFunctionalLwePackingKeyswitchKeyGenerationEngine for DefaultEngine that operates on 64 bits integers. Note that the function applied during keyswitching is of the form m -> m * pol for a polynomial pol. The input polynomial should be a cleartext vector containing the coefficients of pol starting with the constant term.

fn generate_new_lwe_private_functional_packing_keyswitch_key(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_level_count: DecompositionLevelCount,
    decomposition_base_log: DecompositionBaseLog,
    noise: StandardDev,
    f: &dyn Fn(u64) -> u64,
    polynomial: &CleartextVector64
) -> Result<LwePrivateFunctionalPackingKeyswitchKey64, LwePrivateFunctionalLwePackingKeyswitchKeyGenerationError<Self::EngineError>>

Example:

use concrete_core::prelude::Variance;
use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, LweDimension, GlweDimension
};
use concrete_core::prelude::*;

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let input_lwe_dimension = LweDimension(6);
let output_glwe_dimension = GlweDimension(3);
let polynomial_size = PolynomialSize(256);
let decomposition_level_count = DecompositionLevelCount(2);
let decomposition_base_log = DecompositionBaseLog(8);
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let input_key: LweSecretKey64 = engine.generate_new_lwe_secret_key(input_lwe_dimension)?;
let output_key: GlweSecretKey64 = engine.generate_new_glwe_secret_key(output_glwe_dimension,
polynomial_size)?;

let val = vec![1_u64; output_key.polynomial_size().0];
let polynomial: CleartextVector64 = engine.create_cleartext_vector_from(&val)?;
let private_functional_packing_keyswitch_key = engine
.generate_new_lwe_private_functional_packing_keyswitch_key(
    &input_key,
    &output_key,
    decomposition_level_count,
    decomposition_base_log,
    StandardDev(noise.get_standard_dev()),
    &|x|x,
    &polynomial,
)?;
assert_eq!(
assert_eq!(
assert_eq!(private_functional_packing_keyswitch_key.input_lwe_dimension(),
input_lwe_dimension);
assert_eq!(private_functional_packing_keyswitch_key.output_glwe_dimension(),
output_glwe_dimension);

unsafe fn generate_new_lwe_private_functional_packing_keyswitch_key_unchecked(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_level_count: DecompositionLevelCount,
    decomposition_base_log: DecompositionBaseLog,
    noise: StandardDev,
    f: &dyn Fn(u64) -> u64,
    polynomial: &CleartextVector64
) -> LwePrivateFunctionalPackingKeyswitchKey64

Unsafely generates a new private functional packing keyswitch key.

impl LweSeededBootstrapKeyGenerationEngine<LweSecretKey64, GlweSecretKey64, LweSeededBootstrapKey64> for DefaultEngine

Description:

Implementation of LweSeededBootstrapKeyGenerationEngine for DefaultEngine that operates on 64 bits integers. It outputs a seeded bootstrap key in the standard domain.

fn generate_new_lwe_seeded_bootstrap_key(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> Result<LweSeededBootstrapKey64, LweSeededBootstrapKeyGenerationError<Self::EngineError>>

Example

use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, GlweDimension, LweDimension, PolynomialSize,
    Variance, *,
};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let (lwe_dim, glwe_dim, poly_size) = (LweDimension(4), GlweDimension(6), PolynomialSize(256));
let (dec_lc, dec_bl) = (DecompositionLevelCount(3), DecompositionBaseLog(5));
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let lwe_sk: LweSecretKey64 = engine.generate_new_lwe_secret_key(lwe_dim)?;
let glwe_sk: GlweSecretKey64 = engine.generate_new_glwe_secret_key(glwe_dim, poly_size)?;

let bsk: LweSeededBootstrapKey64 =
    engine.generate_new_lwe_seeded_bootstrap_key(&lwe_sk, &glwe_sk, dec_bl, dec_lc, noise)?;
assert_eq!(bsk.glwe_dimension(), glwe_dim);
assert_eq!(bsk.polynomial_size(), poly_size);
assert_eq!(bsk.input_lwe_dimension(), lwe_dim);
assert_eq!(bsk.decomposition_base_log(), dec_bl);
assert_eq!(bsk.decomposition_level_count(), dec_lc);

unsafe fn generate_new_lwe_seeded_bootstrap_key_unchecked(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> LweSeededBootstrapKey64

Unsafely generates a new seeded LWE bootstrap key.

impl LweSeededBootstrapKeyGenerationEngine<LweSecretKey64, GlweSecretKey64, LweSeededBootstrapKey64> for DefaultParallelEngine

Description:

Implementation of LweSeededBootstrapKeyGenerationEngine for DefaultParallelEngine that operates on 64 bits integers. It outputs a seeded bootstrap key in the standard domain.

fn generate_new_lwe_seeded_bootstrap_key(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> Result<LweSeededBootstrapKey64, LweSeededBootstrapKeyGenerationError<Self::EngineError>>

Example

use concrete_core::prelude::{
    DecompositionBaseLog, DecompositionLevelCount, GlweDimension, LweDimension, PolynomialSize,
    Variance, *,
};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let (lwe_dim, glwe_dim, poly_size) = (LweDimension(4), GlweDimension(6), PolynomialSize(256));
let (dec_lc, dec_bl) = (DecompositionLevelCount(3), DecompositionBaseLog(5));
let noise = Variance(2_f64.powf(-25.));

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut default_engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let mut default_parallel_engine =
    DefaultParallelEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;
let lwe_sk: LweSecretKey64 = default_engine.generate_new_lwe_secret_key(lwe_dim)?;
let glwe_sk: GlweSecretKey64 =
    default_engine.generate_new_glwe_secret_key(glwe_dim, poly_size)?;

let bsk: LweSeededBootstrapKey64 = default_parallel_engine
    .generate_new_lwe_seeded_bootstrap_key(&lwe_sk, &glwe_sk, dec_bl, dec_lc, noise)?;
assert_eq!(bsk.glwe_dimension(), glwe_dim);
assert_eq!(bsk.polynomial_size(), poly_size);
assert_eq!(bsk.input_lwe_dimension(), lwe_dim);
assert_eq!(bsk.decomposition_base_log(), dec_bl);
assert_eq!(bsk.decomposition_level_count(), dec_lc);

unsafe fn generate_new_lwe_seeded_bootstrap_key_unchecked(
    &mut self,
    input_key: &LweSecretKey64,
    output_key: &GlweSecretKey64,
    decomposition_base_log: DecompositionBaseLog,
    decomposition_level_count: DecompositionLevelCount,
    noise: Variance
) -> LweSeededBootstrapKey64

Unsafely generates a new seeded LWE bootstrap key.

impl LweToGlweSecretKeyTransformationEngine<LweSecretKey64, GlweSecretKey64> for DefaultEngine

fn transform_lwe_secret_key_to_glwe_secret_key(
    &mut self,
    lwe_secret_key: LweSecretKey64,
    polynomial_size: PolynomialSize
) -> Result<GlweSecretKey64, LweToGlweSecretKeyTransformationError<Self::EngineError>>

Example

use concrete_core::prelude::{GlweDimension, LweDimension, PolynomialSize, *};

// DISCLAIMER: the parameters used here are only for test purpose, and are not secure.
let lwe_dimension = LweDimension(8);
let polynomial_size = PolynomialSize(4);

// Unix seeder must be given a secret input.
// Here we just give it 0, which is totally unsafe.
const UNSAFE_SECRET: u128 = 0;
let mut engine = DefaultEngine::new(Box::new(UnixSeeder::new(UNSAFE_SECRET)))?;

let lwe_secret_key: LweSecretKey64 = engine.generate_new_lwe_secret_key(lwe_dimension)?;
assert_eq!(lwe_secret_key.lwe_dimension(), lwe_dimension);

let glwe_secret_key =
    engine.transform_lwe_secret_key_to_glwe_secret_key(lwe_secret_key, polynomial_size)?;
assert_eq!(glwe_secret_key.glwe_dimension(), GlweDimension(2));
assert_eq!(glwe_secret_key.polynomial_size(), polynomial_size);

unsafe fn transform_lwe_secret_key_to_glwe_secret_key_unchecked(
    &mut self,
    lwe_secret_key: LweSecretKey64,
    polynomial_size: PolynomialSize
) -> GlweSecretKey64

Unsafely transforms an LWE secret key into a GLWE secret key

impl PartialEq<GlweSecretKey64> for GlweSecretKey64

fn eq(&self, other: &GlweSecretKey64) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for GlweSecretKey64

impl StructuralEq for GlweSecretKey64

impl StructuralPartialEq for GlweSecretKey64