Struct DpEngine 

pub struct DpEngine { /* private fields */ }

The DPE-RB differential privacy engine.

Manages Rényi composition tracking, chaos-modulated noise injection, and anomaly flagging for privacy budget breaches.

Implementations

impl DpEngine

pub fn new() -> Self

pub fn with_config(config: DpConfig) -> Self

pub fn apply_dp( &mut self, query: PrivacyQuery, chaos_perturbation: f64, ) -> Result<DpNoiseFrame, PrivacyError>

Apply differential privacy to a query result.

Injects Gaussian or Laplace noise calibrated to sensitivity and ε. Chaos modulation from oracle perturbs noise scale for adaptivity.

pub fn noise_sample(&self, noise_scale: f64, chaos_seed: &[u8; 32]) -> f64

Generate a noise sample for DP injection.

Returns a noise value drawn from the configured distribution, scaled by noise_scale and modulated by chaos perturbation.

pub fn check_budget(&self) -> Result<(), PrivacyError>

Check if privacy budget is approaching exhaustion.

pub fn prove_compliance(&self) -> PrivacyProof

Generate a ZKP proof of DP compliance.

pub fn epsilon_consumed(&self) -> f64

Returns current ε consumed.

pub fn query_count(&self) -> u64

Returns total queries processed.

pub fn reset_budget(&mut self)

Reset the privacy budget (governance-approved reset).

Trait Implementations

impl Default for DpEngine

fn default() -> Self

Returns the “default value” for a type.