Struct KeyId 

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

A 16 byte key identifier — 証明者鍵ID, 被証明者鍵ID, and the references the 券面 applications’ basic information files carry.

"6000024" 08 05 "001" 00 00 00 00
 ^^^^^^^ number      ^^^ group    ^^^^^^^^^^^ padding, whose last byte is not always zero

It names a key, not an issuer: the same organisation appears under several of these. The leading digit separates hierarchies — production identifiers begin 5, the JPKI test hierarchy’s begin 6.

Comparison and lookup use all 16 bytes, so a certificate from one hierarchy never resolves to the other’s key by accident.

Implementations

impl KeyId

pub const LEN: usize = 16

Length of the identifier.

pub fn parse(bytes: &[u8]) -> Result<Self>

Take the identifier from exactly 16 bytes.

Errors

Error::Malformed if the slice is not 16 bytes long, or if the two digit groups are not ASCII digits.

pub fn number(&self) -> &str

The seven digit number that names the key.

pub fn group(&self) -> &str

The three digit group that follows it.

pub fn as_bytes(&self) -> &[u8; 16]

All 16 bytes.

Trait Implementations

impl Clone for KeyId

fn clone(&self) -> KeyId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KeyId

impl Debug for KeyId

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

The printable form plus the padding, since that is where two identifiers can differ invisibly.

impl Display for KeyId

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

6000024/001 — the two digit groups, which is what identifies the key to a reader.

impl Eq for KeyId

impl Hash for KeyId

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 KeyId

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

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for KeyId

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