# [−][src]Enum sequoia_openpgp::crypto::mpi::PublicKey

A public key.

Provides a typed and structured way of storing multiple MPIs (and
the occasional elliptic curve) in `Key`

packets.

Note: This enum cannot be exhaustively matched to allow future extensions.

## Variants (Non-exhaustive)

RSA public key.

NIST DSA public key.

### Fields of **DSA**

ElGamal public key.

DJBs "Twisted" Edwards curve DSA public key.

NISTs Elliptic curve DSA public key.

Elliptic curve ElGamal public key.

### Fields of **ECDH**

`curve: Curve`

Curve we're using.

`q: MPI`

Public point.

`hash: HashAlgorithm`

Hash algorithm used for key derivation.

`sym: SymmetricAlgorithm`

Algorithm used w/the derived key.

Unknown number of MPIs for an unknown algorithm.

### Fields of **Unknown**

## Implementations

`impl PublicKey`

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`pub fn bits(&self) -> Option<usize>`

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Returns the length of the public key in bits.

For finite field crypto this returns the size of the field we
operate in, for ECC it returns `Curve::bits()`

.

Note: This information is useless and should not be used to gauge the security of a particular key. This function exists only because some legacy PGP application like HKP need it.

Returns `None`

for unknown keys and curves.

`pub fn algo(&self) -> Option<PublicKeyAlgorithm>`

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Returns, if known, the public-key algorithm for this public key.

`impl PublicKey`

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`pub fn parse<R: Read + Send + Sync>(`

algo: PublicKeyAlgorithm,

reader: R

) -> Result<Self>

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algo: PublicKeyAlgorithm,

reader: R

) -> Result<Self>

Parses a set of OpenPGP MPIs representing a public key.

See Section 3.2 of RFC 4880 for details.

## Trait Implementations

`impl Clone for PublicKey`

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`impl Debug for PublicKey`

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`impl Eq for PublicKey`

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`impl Hash for PublicKey`

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`impl Hash for PublicKey`

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`fn hash<__H: Hasher>(&self, state: &mut __H)`

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`fn hash_slice<H>(data: &[Self], state: &mut H) where`

H: Hasher,

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H: Hasher,

`impl Marshal for PublicKey`

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`fn serialize(&self, w: &mut dyn Write) -> Result<()>`

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`fn export(&self, o: &mut dyn Write) -> Result<()>`

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`impl MarshalInto for PublicKey`

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`fn serialized_len(&self) -> usize`

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`fn serialize_into(&self, buf: &mut [u8]) -> Result<usize>`

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`fn to_vec(&self) -> Result<Vec<u8>>`

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`fn export_into(&self, buf: &mut [u8]) -> Result<usize>`

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`fn export_to_vec(&self) -> Result<Vec<u8>>`

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`impl Ord for PublicKey`

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`fn cmp(&self, other: &PublicKey) -> Ordering`

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`#[must_use]fn max(self, other: Self) -> Self`

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`#[must_use]fn min(self, other: Self) -> Self`

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`#[must_use]fn clamp(self, min: Self, max: Self) -> Self`

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`impl PartialEq<PublicKey> for PublicKey`

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`impl PartialOrd<PublicKey> for PublicKey`

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`fn partial_cmp(&self, other: &PublicKey) -> Option<Ordering>`

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

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

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

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

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`impl StructuralEq for PublicKey`

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`impl StructuralPartialEq for PublicKey`

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## Auto Trait Implementations

`impl RefUnwindSafe for PublicKey`

`impl Send for PublicKey`

`impl Sync for PublicKey`

`impl Unpin for PublicKey`

`impl UnwindSafe for PublicKey`

## Blanket Implementations

`impl<T> Any for T where`

T: 'static + ?Sized,

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T: 'static + ?Sized,

`impl<T> Borrow<T> for T where`

T: ?Sized,

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T: ?Sized,

`impl<T> BorrowMut<T> for T where`

T: ?Sized,

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T: ?Sized,

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

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`impl<T> DynClone for T where`

T: Clone,

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T: Clone,

`fn __clone_box(&self, Private) -> *mut ()`

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`impl<T> From<T> for T`

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`impl<T, U> Into<U> for T where`

U: From<T>,

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U: From<T>,

`impl<T> Same<T> for T`

`type Output = T`

Should always be `Self`

`impl<T> ToOwned for T where`

T: Clone,

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T: Clone,

`type Owned = T`

The resulting type after obtaining ownership.

`fn to_owned(&self) -> T`

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`fn clone_into(&self, target: &mut T)`

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`impl<T, U> TryFrom<U> for T where`

U: Into<T>,

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U: Into<T>,

`type Error = Infallible`

The type returned in the event of a conversion error.

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`

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`impl<T, U> TryInto<U> for T where`

U: TryFrom<T>,

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U: TryFrom<T>,