Struct SurjectionProof

pub struct SurjectionProof { /* private fields */ }

Available on crate feature std only.

Represents a surjection proof.

Implementations

impl SurjectionProof

pub fn new<C: Signing, R: Rng>( secp: &Secp256k1<C>, rng: &mut R, codomain_tag: Tag, codomain_blinding_factor: Tweak, domain: &[(Generator, Tag, Tweak)], ) -> Result<SurjectionProof, Error>

Available on crate feature actual-rand only.

Prove that a given tag - when blinded - is contained within another set of blinded tags.

Mathematically, we are proving that there exists a surjective mapping between the domain and codomain of tags. Blinding a tag produces a Generator. As such, to create this proof we need to provide the [Generator]s and the respective blinding factors that were used to create them.

impl SurjectionProof

pub fn from_slice(bytes: &[u8]) -> Result<Self, Error>

Creates a surjection proof from a slice of bytes.

pub fn serialize(&self) -> Vec<u8>

Serializes a surjection proof.

The format of this serialization is stable and platform-independent.

pub fn len(&self) -> usize

Find the length of surjection proof when serialized

pub fn is_empty(&self) -> bool

Whether the proof has zero length

Always returns false since a surjection proof must contain at least one 32-byte hash.

pub fn verify<C: Verification>( &self, secp: &Secp256k1<C>, codomain: Generator, domain: &[Generator], ) -> bool

Verify a surjection proof.

Trait Implementations

impl Clone for SurjectionProof

fn clone(&self) -> SurjectionProof

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SurjectionProof

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SurjectionProof

Available on crate features serde and hashes only.

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<SurjectionProof, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for SurjectionProof

Available on crate feature hashes only.

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

Formats the value using the given formatter.

impl FromStr for SurjectionProof

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<SurjectionProof, Error>

Parses a string s to return a value of this type.

impl Hash for SurjectionProof

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SurjectionProof

fn cmp(&self, other: &SurjectionProof) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for SurjectionProof

fn eq(&self, other: &SurjectionProof) -> 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 PartialOrd for SurjectionProof

fn partial_cmp(&self, other: &SurjectionProof) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for SurjectionProof

Available on crate features serde and hashes only.

fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl Eq for SurjectionProof

impl StructuralPartialEq for SurjectionProof