Struct SubjectKey 

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

An opaque, fixed-width subject identifier used by storage backends.

The inner digest is intentionally omitted from Debug output. Construct keys with KeyHasher unless the input is already a cryptographically opaque 32-byte digest.

This type deliberately does not implement Serde traits, even when the crate’s serde feature is enabled, to avoid accidental key disclosure.

Implementations

impl SubjectKey

pub const fn from_digest(digest: [u8; 32]) -> Self

Constructs a key from an already-opaque 32-byte digest.

This constructor does not hash or otherwise transform the input.

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

Returns the opaque digest bytes for storage and comparison.

pub const fn into_bytes(self) -> [u8; 32]

Consumes the key and returns its opaque digest bytes.

Trait Implementations

impl Clone for SubjectKey

fn clone(&self) -> SubjectKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SubjectKey

impl Debug for SubjectKey

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

Formats the value using the given formatter.

impl Eq for SubjectKey

impl Hash for SubjectKey

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 SubjectKey

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

fn eq(&self, other: &SubjectKey) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for SubjectKey

fn partial_cmp(&self, other: &SubjectKey) -> 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 StructuralPartialEq for SubjectKey