Trait smartnoise_validator::components::Mechanism

pub trait Mechanism {
    fn get_privacy_usage(
        &self, 
        privacy_definition: &PrivacyDefinition, 
        release_usage: Option<&Vec<PrivacyUsage>>, 
        properties: &NodeProperties
    ) -> Result<Option<Vec<PrivacyUsage>>>;
}

Mechanism component trait

When a component is a Mechanism, it consumes a privacy budget.

Required methods

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

Extraction of privacy usage by the component.

By default, this returns the upper bound of the privacy usage of the component.

If the component has been evaluated, it is possible the actual usage of the component differs from the upper bound. In this case, the release_usage is returned.

Arguments

• self - the protobuf object corresponding to the prost protobuf struct, containing an upper bound on privacy usage
• privacy_definition - the definition of privacy under which the sensitivity is to be computed
• release_usage - optionally, the privacy actually used by the mechanism (if it has already been released)
• sensitivity_type - space for which the sensitivity is computed within

Returns

Privacy usages after group_size, c_stability and privacy amplification have been taken into account.

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Implementors

impl Mechanism for Component

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

impl Mechanism for ExponentialMechanism

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

impl Mechanism for GaussianMechanism

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

impl Mechanism for LaplaceMechanism

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

impl Mechanism for SimpleGeometricMechanism

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

impl Mechanism for SnappingMechanism

fn get_privacy_usage(
    &self,
    privacy_definition: &PrivacyDefinition,
    release_usage: Option<&Vec<PrivacyUsage>>,
    properties: &NodeProperties
) -> Result<Option<Vec<PrivacyUsage>>>

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