Struct KeyHint 

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

Key hint for checkpoint signature identification (4 bytes)

The key hint is the first 4 bytes of SHA-256(public_key_der). It is used in signed notes/checkpoints to match signatures to public keys.

Implementations

impl KeyHint

pub fn new(bytes: [u8; 4]) -> Self

Create a new key hint from a 4-byte array

pub fn try_from_slice(slice: &[u8]) -> Result<Self>

Create from a slice (must be exactly 4 bytes)

pub fn as_bytes(&self) -> &[u8; 4]

Get the key hint as a byte slice

pub fn as_slice(&self) -> &[u8]

Get the key hint as a slice

Trait Implementations

impl AsRef<[u8]> for KeyHint

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

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

impl Clone for KeyHint

fn clone(&self) -> KeyHint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KeyHint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for KeyHint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<[u8; 4]> for KeyHint

fn from(bytes: [u8; 4]) -> Self

Converts to this type from the input type.

impl Hash for KeyHint

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 PartialEq for KeyHint

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for KeyHint

impl Eq for KeyHint

impl StructuralPartialEq for KeyHint