Struct KeyUsage 

pub struct KeyUsage(pub FlagSet<KeyUsages>);

KeyUsage as defined in RFC 5280 Section 4.2.1.3.

Tuple Fields

0: FlagSet<KeyUsages>

Implementations

impl KeyUsage

pub fn digital_signature(&self) -> bool

The subject public key is used for verifying digital signatures

pub fn non_repudiation(&self) -> bool

When the subject public key is used to verify digital signatures, it is asserted as non-repudiation.

pub fn key_encipherment(&self) -> bool

The subject public key is used for enciphering private or secret keys, i.e., for key transport.

pub fn data_encipherment(&self) -> bool

The subject public key is used for directly enciphering raw user data without the use of an intermediate symmetric cipher.

pub fn key_agreement(&self) -> bool

The subject public key is used for key agreement

pub fn key_cert_sign(&self) -> bool

The subject public key is used for enciphering private or secret keys, i.e., for key transport.

pub fn crl_sign(&self) -> bool

The subject public key is used for verifying signatures on certificate revocation lists (e.g., CRLs, delta CRLs, or ARLs).

pub fn encipher_only(&self) -> bool

The meaning of the encipher_only is undefined when key_agreement returns false. When encipher_only returns true and key_agreement also returns true, the subject public key may be used only for enciphering data while performing key agreement.

pub fn decipher_only(&self) -> bool

The meaning of the decipher_only is undefined when key_agreement returns false. When encipher_only returns true and key_agreement also returns true, the subject public key may be used only for deciphering data while performing key agreement.

Trait Implementations

impl<'a> AsMut<FlagSet<KeyUsages>> for KeyUsage

fn as_mut(&mut self) -> &mut FlagSet<KeyUsages>

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

impl<'a> AsRef<FlagSet<KeyUsages>> for KeyUsage

fn as_ref(&self) -> &FlagSet<KeyUsages>

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

impl AssociatedOid for KeyUsage

const OID: ObjectIdentifier = ID_CE_KEY_USAGE

The OID associated with this type.

impl Clone for KeyUsage

fn clone(&self) -> KeyUsage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KeyUsage

impl Criticality for KeyUsage

fn criticality(&self, _subject: &Name, _extensions: &[Extension]) -> bool

Should the extension be marked critical

impl Debug for KeyUsage

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

Formats the value using the given formatter.

impl<'a> DecodeValue<'a> for KeyUsage

type Error = Error

Type returned in the event of a decoding error.

fn decode_value<R>(decoder: &mut R, header: Header) -> Result<KeyUsage, Error>

where R: Reader<'a>,

Attempt to decode this value using the provided Reader.

impl<'a> EncodeValue for KeyUsage

fn encode_value(&self, encoder: &mut impl Writer) -> Result<(), Error>

Encode value (sans [Tag]+Length header) as ASN.1 DER using the provided Writer.

fn value_len(&self) -> Result<Length, Error>

Compute the length of this value (sans [Tag]+Length header) when encoded as ASN.1 DER.

fn header(&self) -> Result<Header, Error>

where Self: Tagged,

Get the Header used to encode this value.

impl Eq for KeyUsage

impl<'a> FixedTag for KeyUsage

const TAG: Tag = <FlagSet<KeyUsages> as ::der::FixedTag>::TAG

ASN.1 tag

impl<'a> From<FlagSet<KeyUsages>> for KeyUsage

fn from(value: FlagSet<KeyUsages>) -> KeyUsage

Converts to this type from the input type.

impl PartialEq for KeyUsage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for KeyUsage

impl<'a> ValueOrd for KeyUsage

fn value_cmp(&self, other: &KeyUsage) -> Result<Ordering, Error>

Return an Ordering between value portion of TLV-encoded self and other when serialized as ASN.1 DER.