Struct DonationPermitRequestContext 

pub struct DonationPermitRequestContext { /* private fields */ }

Client-retained state for an in-flight permit request.

This holds the per-permit secrets (nonces and blinding scalars) that the client needs to unblind the eventual DonationPermitResponse. It must be persisted between sending the request and calling receive.

Implementations

impl DonationPermitRequestContext

pub fn new(count: NonZeroUsize, randomness: RandomnessBytes) -> Self

Samples count fresh permits’ worth of nonces and blinding scalars from randomness.

Each nonce gets an independent blinding scalar, so every eventual permit is information-theoretically independent of issuance and of its siblings.

pub fn request(&self) -> DonationPermitRequest

The wire request to send to the issuing server.

pub fn receive( self, response: DonationPermitResponse, root_public_key: impl AsRef<ServerRootPublicKey>, now: Timestamp, ) -> Result<Vec<DonationPermit>, ZkGroupVerificationFailure>

Validates the issuer’s response and extracts the redeemable permits.

now is used to validate the response’s expiration window. root_public_key must be the audited, client-pinned public key; verifying the issuance proof against it is what prevents the issuing server from tagging this client with a per-client key.

The returned permits are in the same order as the nonces in this context.

Trait Implementations

impl Clone for DonationPermitRequestContext

fn clone(&self) -> DonationPermitRequestContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'de> Deserialize<'de> for DonationPermitRequestContext

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialDefault for DonationPermitRequestContext

fn partial_default() -> Self

Returns a value that can be safely dropped or assigned over.

impl Serialize for DonationPermitRequestContext

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

where __S: Serializer,

Serialize this value into the given Serde serializer.