Struct EdDSAPublicKey 

pub struct EdDSAPublicKey {
    pub pk: Affine<EdwardsConfig>,
}

A public key for the EdDSA signature scheme over the BabyJubJubCurve.

Fields

pk: Affine<EdwardsConfig>

Implementations

impl EdDSAPublicKey

pub fn verify( &self, message: Fp<MontBackend<FrConfig, 4>, 4>, signature: &EdDSASignature, ) -> bool

Verify the signature against the given message and public key.

This verification function follows https://eprint.iacr.org/2020/1244.pdf to avoid common pitfalls. In particular, this uses a so-called “cofactored” verification, such that batched signature verification is possible.

The only assumption is that both the public key and the nonce point R are canonical, i.e., their encoding is using valid field elements, which must be checked during deserialization.

pub fn to_compressed_bytes(&self) -> Result<[u8; 32], Report>

Serialize the public key to a compressed byte array.

pub fn from_compressed_bytes(bytes: [u8; 32]) -> Result<EdDSAPublicKey, Report>

Parse the public key from a byte array with the point in compressed format.

Trait Implementations

impl Clone for EdDSAPublicKey

fn clone(&self) -> EdDSAPublicKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EdDSAPublicKey

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EdDSAPublicKey

fn deserialize<__D>( __deserializer: __D, ) -> Result<EdDSAPublicKey, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for EdDSAPublicKey

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

where __H: Hasher,

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 PartialEq for EdDSAPublicKey

fn eq(&self, other: &EdDSAPublicKey) -> 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 Serialize for EdDSAPublicKey

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for EdDSAPublicKey

impl StructuralPartialEq for EdDSAPublicKey