pub struct AlgorithmIdentifier<Params> {
    pub oid: ObjectIdentifier,
    pub parameters: Option<Params>,
}
Available on crate feature pkcs8 only.
Expand description

X.509 AlgorithmIdentifier as defined in RFC 5280 Section 4.1.1.2.

AlgorithmIdentifier  ::=  SEQUENCE  {
     algorithm               OBJECT IDENTIFIER,
     parameters              ANY DEFINED BY algorithm OPTIONAL  }

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§oid: ObjectIdentifier

Algorithm OID, i.e. the algorithm field in the AlgorithmIdentifier ASN.1 schema.

§parameters: Option<Params>

Algorithm parameters.

Implementations§

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impl<Params> AlgorithmIdentifier<Params>

pub fn assert_algorithm_oid( &self, expected_oid: ObjectIdentifier ) -> Result<ObjectIdentifier, Error>

Assert the algorithm OID is an expected value.

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impl<'a> AlgorithmIdentifier<AnyRef<'a>>

pub fn assert_parameters_oid( &self, expected_oid: ObjectIdentifier ) -> Result<ObjectIdentifier, Error>

Assert parameters is an OID and has the expected value.

pub fn assert_oids( &self, algorithm: ObjectIdentifier, parameters: ObjectIdentifier ) -> Result<(), Error>

Assert the values of the algorithm and parameters OIDs.

pub fn parameters_any(&self) -> Result<AnyRef<'a>, Error>

Get the parameters field as an AnyRef.

Returns an error if parameters are None.

pub fn parameters_oid(&self) -> Result<ObjectIdentifier, Error>

Get the parameters field as an ObjectIdentifier.

Returns an error if it is absent or not an OID.

pub fn oids( &self ) -> Result<(ObjectIdentifier, Option<ObjectIdentifier>), Error>

Convert to a pair of ObjectIdentifiers.

This method is helpful for decomposing in match statements. Note in particular that NULL parameters are treated the same as missing parameters.

Returns an error if parameters are present but not an OID.

Trait Implementations§

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impl<Params> Clone for AlgorithmIdentifier<Params>
where Params: Clone,

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fn clone(&self) -> AlgorithmIdentifier<Params>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl<Params> Debug for AlgorithmIdentifier<Params>
where Params: Debug,

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

Formats the value using the given formatter. Read more
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impl<'a, Params> DecodeValue<'a> for AlgorithmIdentifier<Params>
where Params: Choice<'a>,

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fn decode_value<R>( reader: &mut R, header: Header ) -> Result<AlgorithmIdentifier<Params>, Error>
where R: Reader<'a>,

Attempt to decode this message using the provided Reader.
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impl<Params> EncodeValue for AlgorithmIdentifier<Params>
where Params: Encode,

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

Compute the length of this value (sans [Tag]+Length header) when encoded as ASN.1 DER.
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fn encode_value(&self, writer: &mut impl Writer) -> Result<(), Error>

Encode value (sans [Tag]+Length header) as ASN.1 DER using the provided Writer.
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impl<Params> Ord for AlgorithmIdentifier<Params>
where Params: Ord,

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fn cmp(&self, other: &AlgorithmIdentifier<Params>) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl OwnedToRef for AlgorithmIdentifier<Any>

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type Borrowed<'a> = AlgorithmIdentifier<AnyRef<'a>>

The resulting type referencing back to Self
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fn owned_to_ref(&self) -> <AlgorithmIdentifier<Any> as OwnedToRef>::Borrowed<'_>

Creates a new object referencing back to the self for storage
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impl<Params> PartialEq for AlgorithmIdentifier<Params>
where Params: PartialEq,

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fn eq(&self, other: &AlgorithmIdentifier<Params>) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<Params> PartialOrd for AlgorithmIdentifier<Params>
where Params: PartialOrd,

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fn partial_cmp(&self, other: &AlgorithmIdentifier<Params>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<'a> RefToOwned<'a> for AlgorithmIdentifier<AnyRef<'a>>

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type Owned = AlgorithmIdentifier<Any>

The resulting type after obtaining ownership.
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fn ref_to_owned( &self ) -> <AlgorithmIdentifier<AnyRef<'a>> as RefToOwned<'a>>::Owned

Creates a new object taking ownership of the data
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impl<'a, Params> TryFrom<&'a [u8]> for AlgorithmIdentifier<Params>
where Params: Choice<'a> + Encode,

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(bytes: &'a [u8]) -> Result<AlgorithmIdentifier<Params>, Error>

Performs the conversion.
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impl<Params> ValueOrd for AlgorithmIdentifier<Params>
where Params: DerOrd,

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

Return an Ordering between value portion of TLV-encoded self and other when serialized as ASN.1 DER.
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impl<Params> Copy for AlgorithmIdentifier<Params>
where Params: Copy,

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impl<Params> Eq for AlgorithmIdentifier<Params>
where Params: Eq,

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impl<'a, Params> Sequence<'a> for AlgorithmIdentifier<Params>
where Params: Choice<'a> + Encode,

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impl<Params> StructuralPartialEq for AlgorithmIdentifier<Params>

Auto Trait Implementations§

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impl<Params> RefUnwindSafe for AlgorithmIdentifier<Params>
where Params: RefUnwindSafe,

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impl<Params> Send for AlgorithmIdentifier<Params>
where Params: Send,

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impl<Params> Sync for AlgorithmIdentifier<Params>
where Params: Sync,

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impl<Params> Unpin for AlgorithmIdentifier<Params>
where Params: Unpin,

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impl<Params> UnwindSafe for AlgorithmIdentifier<Params>
where Params: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<'a, T> Choice<'a> for T
where T: Decode<'a> + FixedTag,

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fn can_decode(tag: Tag) -> bool

Is the provided Tag decodable as a variant of this CHOICE?
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impl<'a, T> Decode<'a> for T
where T: DecodeValue<'a> + FixedTag,

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fn decode<R>(reader: &mut R) -> Result<T, Error>
where R: Reader<'a>,

Attempt to decode this message using the provided decoder.
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fn from_der(bytes: &'a [u8]) -> Result<Self, Error>

Parse Self from the provided DER-encoded byte slice.
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impl<T> DerOrd for T

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fn der_cmp(&self, other: &T) -> Result<Ordering, Error>

Return an Ordering between self and other when serialized as ASN.1 DER.
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impl<T> Encode for T
where T: EncodeValue + Tagged,

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

Compute the length of this value in bytes when encoded as ASN.1 DER.

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fn encode(&self, writer: &mut impl Writer) -> Result<(), Error>

Encode this value as ASN.1 DER using the provided Writer.

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fn encode_to_slice<'a>(&self, buf: &'a mut [u8]) -> Result<&'a [u8], Error>

Encode this value to the provided byte slice, returning a sub-slice containing the encoded message.
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fn encode_to_vec(&self, buf: &mut Vec<u8>) -> Result<Length, Error>

Available on crate feature alloc only.
Encode this message as ASN.1 DER, appending it to the provided byte vector.
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fn to_der(&self) -> Result<Vec<u8>, Error>

Available on crate feature alloc only.
Encode this type as DER, returning a byte vector.
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impl<'a, S> FixedTag for S
where S: Sequence<'a>,

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const TAG: Tag = Tag::Sequence

ASN.1 tag
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> Tagged for T
where T: FixedTag,

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fn tag(&self) -> Tag

Get the ASN.1 tag that this type is encoded with.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DecodeOwned for T
where T: for<'a> Decode<'a>,