Struct AvatarUploadCredentialRequestContext 

pub struct AvatarUploadCredentialRequestContext { /* private fields */ }

Implementations

impl AvatarUploadCredentialRequestContext

pub fn new( aci: Aci, zk_credential_key_pair: &ZkCredentialKeyPair, rotation_id: u64, randomness: RandomnessBytes, ) -> Self

Constructs a new request context.

zk_credential_key_pair is the account’s long-term Ristretto ZK credential key pair.

rotation_id is the server-chosen avatar slot rotation ID. The client already holds it (the server returns it when the client sets its ZK credential key), so the client folds it into the full commitment Cm = [aci]*H1 + [zk_credential_key_secret]*H2 + [rotation_id]*H3 here. The server later verifies the well-formedness proof against its own rotation_id, which forces the client to have used the server’s value.

pub fn get_request(&self) -> AvatarUploadCredentialRequest

impl AvatarUploadCredentialRequestContext

pub fn receive( self, response: AvatarUploadCredentialResponse, params: &GenericServerPublicParams, current_time: Timestamp, ) -> Result<AvatarUploadCredential, ZkGroupVerificationFailure>

Verifies the issuing server’s response and produces a usable AvatarUploadCredential.

The server chose the redemption_time and embedded it in response. The client doesn’t need to predict it, it only needs to confirm that the credential is usable now, since the verifying server applies the same window (see AvatarUploadCredentialPresentation::verify). current_time is the client’s view of wall-clock time; the redemption time must be day-aligned and fall inside the redemption window relative to it.

Trait Implementations

impl Clone for AvatarUploadCredentialRequestContext

fn clone(&self) -> AvatarUploadCredentialRequestContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'de> Deserialize<'de> for AvatarUploadCredentialRequestContext

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialDefault for AvatarUploadCredentialRequestContext

fn partial_default() -> Self

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

impl Serialize for AvatarUploadCredentialRequestContext

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

where __S: Serializer,

Serialize this value into the given Serde serializer.