Struct Or

pub struct Or<A, B> { /* private fields */ }

Combinator for proving that A OR B is true.

Implementations

impl<A, B> Or<A, B>

pub fn new(lhs: A, rhs: B) -> Self

Create a Or<A,B> protocol from two other Sigma protocols

Trait Implementations

impl<A: Clone, B: Clone> Clone for Or<A, B>

fn clone(&self) -> Or<A, B>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<A: Debug, B: Debug> Debug for Or<A, B>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A: Default, B: Default> Default for Or<A, B>

fn default() -> Or<A, B>

Returns the “default value” for a type.

impl<A, B> Display for Or<A, B>

where Or<A, B>: Sigma,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A: PartialEq, B: PartialEq> PartialEq for Or<A, B>

fn eq(&self, other: &Or<A, B>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A: Sigma, B: Sigma<ChallengeLength = A::ChallengeLength>> Sigma for Or<A, B>

type Witness = Either<<A as Sigma>::Witness, <B as Sigma>::Witness>

The witness for the relation.

type Statement = (<A as Sigma>::Statement, <B as Sigma>::Statement)

The elements of the statement the prover is proving.

type Announcement = (<A as Sigma>::Announcement, <B as Sigma>::Announcement)

The type for the public announcement the prover sends in the first round of the protocol.

type AnnounceSecret = (Either<(<A as Sigma>::AnnounceSecret, <B as Sigma>::Response), (<A as Sigma>::Response, <B as Sigma>::AnnounceSecret)>, GenericArray<u8, <Or<A, B> as Sigma>::ChallengeLength>)

The type for the secret the prover creates when generating the proof.

type ChallengeLength = <A as Sigma>::ChallengeLength

The length as a typenum

type Response = ((<A as Sigma>::Response, GenericArray<u8, <Or<A, B> as Sigma>::ChallengeLength>), <B as Sigma>::Response)

The type for the response the prover sends in the last round of the protocol.

fn respond( &self, witness: &Self::Witness, statement: &Self::Statement, announce_secret: Self::AnnounceSecret, announce: &Self::Announcement, challenge: &GenericArray<u8, Self::ChallengeLength>, ) -> Self::Response

Generates the prover’s response for the verifier’s challenge.

fn announce( &self, statement: &Self::Statement, announce_secret: &Self::AnnounceSecret, ) -> Self::Announcement

Generates the prover’s announcement message.

fn gen_announce_secret<Rng: CryptoRng + RngCore>( &self, witness: &Self::Witness, rng: &mut Rng, ) -> Self::AnnounceSecret

Generates the secret data to create the announcement

fn sample_response<Rng: CryptoRng + RngCore>( &self, rng: &mut Rng, ) -> Self::Response

Uniformly samples a response from the response space of the Sigma protocol.

fn implied_announcement( &self, statement: &Self::Statement, challenge: &GenericArray<u8, Self::ChallengeLength>, response: &Self::Response, ) -> Option<Self::Announcement>

Computes what the announcement must be for the response to be valid.

fn hash_statement<H: Update>(&self, hash: &mut H, statement: &Self::Statement)

Hashes the statement.

fn hash_announcement<H: Update>( &self, hash: &mut H, announcement: &Self::Announcement, )

Hashes the announcement.

fn hash_witness<H: Update>(&self, hash: &mut H, witness: &Self::Witness)

Hashes the witness.

impl<A: Writable, B: Writable> Writable for Or<A, B>

fn write_to<W: Write>(&self, w: &mut W) -> Result

Asks the thing to write itself to W.

impl<A, B> StructuralPartialEq for Or<A, B>