Struct GoldKey256 

pub struct GoldKey256 { /* private fields */ }

Secret key k for the Gold PRF (pilot: U256 field).

Invariant: k is a reduced field element in [1, p) for the modulus p in GoldPrfParams256. Keys are only constructible via GoldKey256::from_uint or GoldKey256::derive_from_seed; use GoldKey256::as_uint for read-only access. Evaluation assumes this invariant and does not re-validate on each call.

Implementations

impl GoldKey256

pub fn from_uint(k: U256, params: &GoldPrfParams256) -> Result<Self, PrfError>

pub fn derive_from_seed( seed: &[u8], params: &GoldPrfParams256, ) -> Result<Self, PrfError>

pub fn as_uint(&self) -> &U256

Borrow the key as a reduced field element in [1, p) (see type invariant).

Trait Implementations

impl Clone for GoldKey256

fn clone(&self) -> GoldKey256

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Drop for GoldKey256

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Zeroize for GoldKey256

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.