[][src]Struct sequoia_openpgp::crypto::mpi::MPI

pub struct MPI { /* fields omitted */ }

A Multiprecision Integer.

Implementations

impl MPI[src]

pub fn new(value: &[u8]) -> Self[src]

Creates a new MPI.

This function takes care of removing leading zeros.

pub fn new_point(x: &[u8], y: &[u8], field_bits: usize) -> Self[src]

Creates new MPI encoding an uncompressed EC point.

Encodes the given point on a elliptic curve (see Section 6 of RFC 6637 for details). This is used to encode public keys and ciphertexts for the NIST curves (NistP256, NistP384, and NistP521).

pub fn new_compressed_point(x: &[u8]) -> Self[src]

Creates new MPI encoding a compressed EC point using native encoding.

Encodes the given point on a elliptic curve (see Section 13.2 of RFC4880bis for details). This is used to encode public keys and ciphertexts for the Bernstein curves (currently X25519).

pub fn bits(&self) -> usize[src]

Returns the length of the MPI in bits.

Leading zero-bits are not included in the returned size.

pub fn value(&self) -> &[u8][src]

Returns the value of this MPI.

Note that due to stripping of zero-bytes, the returned value may be shorter than expected.

pub fn decode_point(&self, curve: &Curve) -> Result<(&[u8], &[u8])>[src]

Decodes an EC point encoded as MPI.

Decodes the MPI into a point on an elliptic curve (see Section 6 of RFC 6637 and Section 13.2 of RFC4880bis for details). If the point is not compressed, the function returns (x, y). If it is compressed, y will be empty.

Errors

Returns Error::UnsupportedEllipticCurve if the curve is not supported, Error::MalformedMPI if the point is formatted incorrectly.

Trait Implementations

impl Clone for MPI[src]

impl Debug for MPI[src]

impl Eq for MPI[src]

impl From<MPI> for ProtectedMPI[src]

impl From<Vec<u8>> for MPI[src]

impl Hash for MPI[src]

impl Hash for MPI[src]

impl Marshal for MPI[src]

impl MarshalInto for MPI[src]

impl Ord for MPI[src]

impl<'a> Parse<'a, MPI> for MPI[src]

impl PartialEq<MPI> for MPI[src]

impl PartialOrd<MPI> for MPI[src]

Auto Trait Implementations

impl RefUnwindSafe for MPI

impl Send for MPI

impl Sync for MPI

impl Unpin for MPI

impl UnwindSafe for MPI

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> DynClone for T where
    T: Clone
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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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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type Owned = T

The resulting type after obtaining ownership.

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.

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.