Struct ComputeKeyNonFft 

pub struct ComputeKeyNonFft {
    pub bs_key: BootstrapKey<u64>,
    pub ks_key: LweKeyswitchKey<u64>,
    pub auto_key: AutomorphismKey<u64>,
    pub ss_key: SchemeSwitchKey<u64>,
}

A set of keys that can be FFT’d and used during evaluation.

Remarks

Compute keys are quite large (100s of MB), so you should serialize with a protocol that can efficiently store arrays. Additionally, you should design your protocol around not having to frequently share these.

Fields

bs_key: BootstrapKey<u64>

The bootstrapping key used internally in circuit bootstrapping operations.

ks_key: LweKeyswitchKey<u64>

The keyswitch keys for converting L1 LWE ciphertexts to L0 LWE ciphertexts.

auto_key: AutomorphismKey<u64>

An automorphism key used as part of circuit bootstrapping.

ss_key: SchemeSwitchKey<u64>

Scheme switching keys used for turning L1 GLEV ciphertexts into L1 GGSW ciphertexts.

Implementations

impl ComputeKeyNonFft

pub fn generate(secret_key: &SecretKey, params: &Params) -> Self

Generate the compute keys in non-fft form from the given secret keys.

Remarks

The params passed must be the same as those used during secret key generation.

pub fn fft(&self, params: &Params) -> ComputeKey

Takes the fast-fourier transform of the keys, which is used during evaluation.

pub fn generate_with_default_params(secret_key: &SecretKey) -> Self

Generate the compute keys in non-fft form from the given secret keys with the default parameters (crate::DEFAULT_128).

Remarks

The secret key must have also been generated with the default parameters.

Trait Implementations

impl Clone for ComputeKeyNonFft

fn clone(&self) -> ComputeKeyNonFft

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'de> Deserialize<'de> for ComputeKeyNonFft

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl GetSize for ComputeKeyNonFft

fn get_size(params: &Params) -> usize

The expected size under the given Params.

fn check_is_valid(&self, params: &Params) -> Result<()>

Check if the given object is valid under the given Params.

impl Serialize for ComputeKeyNonFft

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

where __S: Serializer,

Serialize this value into the given Serde serializer.