Struct PublicKey

pub struct PublicKey(/* private fields */);

Available on crate feature key only.

A public key.

The key itself is just a 32 byte array, but a key has associated crypto information that is cached for performance reasons.

The cache item will be refreshed every time a crypto operation is performed, or when a key is deserialised or created from a byte array.

Serialisation or creation from a byte array is cheap if the key is already in the cache, but expensive if it is not.

Implementations

impl PublicKey

pub fn as_bytes(&self) -> &[u8; 32]

Get this public key as a byte array.

pub fn from_bytes(bytes: &[u8; 32]) -> Result<Self, SignatureError>

Construct a PublicKey from a slice of bytes.

Warning

This will return a SignatureError if the bytes passed into this method do not represent a valid ed25519_dalek curve point. Will never fail for bytes return from Self::as_bytes. See VerifyingKey::from_bytes for details.

pub fn verify( &self, message: &[u8], signature: &Signature, ) -> Result<(), SignatureError>

Verify a signature on a message with this secret key’s public key.

Return

Returns Ok(()) if the signature is valid, and Err otherwise.

pub fn fmt_short(&self) -> String

Convert to a base32 string limited to the first 10 bytes for a friendly string representation of the key.

Trait Implementations

impl AsRef<[u8]> for PublicKey

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for PublicKey

fn clone(&self) -> PublicKey

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PublicKey

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PublicKey

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PublicKey

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

Formats the value using the given formatter.

impl From<PublicKey> for NodeAddr

fn from(node_id: NodeId) -> Self

Converts to this type from the input type.

impl From<VerifyingKey> for PublicKey

fn from(verifying_key: VerifyingKey) -> Self

Converts to this type from the input type.

impl FromStr for PublicKey

Deserialises the PublicKey from it’s base32 encoding.

Display is capable of serialising this format.

type Err = KeyParsingError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for PublicKey

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 PublicKey

fn cmp(&self, other: &PublicKey) -> 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 PublicKey

fn eq(&self, other: &PublicKey) -> 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 PublicKey

fn partial_cmp(&self, other: &PublicKey) -> 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 PublicKey

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&[u8]> for PublicKey

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&[u8; 32]> for PublicKey

type Error = Error

The type returned in the event of a conversion error.

fn try_from(bytes: &[u8; 32]) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for PublicKey

impl Eq for PublicKey

impl StructuralPartialEq for PublicKey