Struct tfhe::CompactFheIntList

pub struct CompactFheIntList<Id: FheIntId> { /* private fields */ }

Available on crate feature integer only.

Compact list of FheInt

Meant to save in storage space / transfer.

• A Compact type must be expanded using expand before it can be used.
• It is not possible to ‘compact’ an existing FheInt. Compacting can only be achieved at encryption time by a CompactPublicKey

Example

use tfhe::prelude::*;
use tfhe::{generate_keys, CompactFheInt32List, CompactPublicKey, ConfigBuilder, FheInt32};

let (client_key, _) = generate_keys(ConfigBuilder::default());
let compact_public_key = CompactPublicKey::try_new(&client_key).unwrap();

let clears = vec![i32::MAX, i32::MIN, 0, 1];
let compact = CompactFheInt32List::encrypt(&clears, &compact_public_key);
assert_eq!(compact.len(), clears.len());

let ciphertexts = compact.expand();
let decrypted: Vec<i32> = ciphertexts
    .into_iter()
    .map(|ciphertext| ciphertext.decrypt(&client_key))
    .collect();
assert_eq!(decrypted, clears);

Implementations

impl<Id> CompactFheIntList<Id>

where Id: FheIntId,

pub fn len(&self) -> usize

Returns the number of element in the compact list

pub fn is_empty(&self) -> bool

pub fn into_raw_parts(self) -> (CompactCiphertextList, Id)

pub fn from_raw_parts(list: CompactCiphertextList, id: Id) -> Self

pub fn expand(&self) -> Vec<FheInt<Id>>

Expand to a Vec<FheInt>

See CompactFheIntList example.

Trait Implementations

impl<Id: Clone + FheIntId> Clone for CompactFheIntList<Id>

fn clone(&self) -> CompactFheIntList<Id>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'de, Id> Deserialize<'de> for CompactFheIntList<Id>

where Id: Deserialize<'de> + FheIntId,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a, Id, T> FheTryEncrypt<&'a [T], CompactPublicKey> for CompactFheIntList<Id>

where T: DecomposableInto<u64>, Id: FheIntId,

type Error = Error

fn try_encrypt( values: &'a [T], key: &CompactPublicKey ) -> Result<Self, Self::Error>

impl<Id: FheIntId> Named for CompactFheIntList<Id>

const NAME: &'static str = "high_level_api::CompactFheIntList"

impl<Id: FheIntId> ParameterSetConformant for CompactFheIntList<Id>

type ParameterSet = CompactFheIntListConformanceParams<Id>

fn is_conformant(&self, params: &CompactFheIntListConformanceParams<Id>) -> bool

impl<Id> Serialize for CompactFheIntList<Id>

where Id: Serialize + FheIntId,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.