Enum sequoia_openpgp::crypto::mpi::Signature

#[non_exhaustive]
pub enum Signature {
    RSA {
        s: MPI,
    },
    DSA {
        r: MPI,
        s: MPI,
    },
    ElGamal {
        r: MPI,
        s: MPI,
    },
    EdDSA {
        r: MPI,
        s: MPI,
    },
    ECDSA {
        r: MPI,
        s: MPI,
    },
    Unknown {
        mpis: Box<[MPI]>,
        rest: Box<[u8]>,
    },
}

A cryptographic signature.

Provides a typed and structured way of storing multiple MPIs in Signature packets.

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

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

RSA

RSA signature.

Fields of RSA

s: MPI

Signature m^d mod N.

DSA

NIST’s DSA signature.

Fields of DSA

r: MPI

r value.

s: MPI

s value.

ElGamal

ElGamal signature.

Fields of ElGamal

r: MPI

r value.

s: MPI

s value.

EdDSA

DJB’s “Twisted” Edwards curve DSA signature.

Fields of EdDSA

r: MPI

r value.

s: MPI

s value.

ECDSA

NIST’s Elliptic curve DSA signature.

Fields of ECDSA

r: MPI

r value.

s: MPI

s value.

Unknown

Unknown number of MPIs for an unknown algorithm.

Fields of Unknown

mpis: Box<[MPI]>

The successfully parsed MPIs.

rest: Box<[u8]>

Any data that failed to parse.

Implementations

impl Signature

pub fn parse<R: Read + Send + Sync>(
    algo: PublicKeyAlgorithm,
    reader: R
) -> Result<Self>

Parses a set of OpenPGP MPIs representing a signature.

Expects MPIs for a public key algorithm algos signature. See Section 3.2 of RFC 4880 for details.

Trait Implementations

impl Clone for Signature

fn clone(&self) -> Signature

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Signature

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

Formats the value using the given formatter.

impl Hash for Signature

fn hash(&self, hash: &mut dyn Digest)

Updates the given hash with this object.

impl Hash for Signature

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, 

Feeds a slice of this type into the given Hasher.

impl Marshal for Signature

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

Writes a serialized version of the object to o.

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

Exports a serialized version of the object to o.

impl MarshalInto for Signature

fn serialized_len(&self) -> usize

Computes the maximal length of the serialized representation.

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

Serializes into the given buffer.

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

Serializes the packet to a vector.

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

Exports into the given buffer.

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

Exports to a vector.

impl Ord for Signature

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Signature> for Signature

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

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

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

This method tests for !=.

impl PartialOrd<Signature> for Signature

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

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Signature

impl StructuralEq for Signature

impl StructuralPartialEq for Signature