[−][src]Struct sequoia_openpgp::crypto::mpi::MPI
A Multiprecision Integer.
Implementations
impl MPI
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pub fn new(value: &[u8]) -> Self
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Creates a new MPI.
This function takes care of removing leading zeros.
pub fn new_point(x: &[u8], y: &[u8], field_bits: usize) -> Self
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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
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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
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Returns the length of the MPI in bits.
Leading zero-bits are not included in the returned size.
pub fn value(&self) -> &[u8]
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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])>
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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
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impl Debug for MPI
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impl Eq for MPI
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impl From<MPI> for ProtectedMPI
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impl From<Vec<u8, Global>> for MPI
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impl Hash for MPI
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impl Hash for MPI
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pub fn hash<H: Hasher>(&self, state: &mut H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl Marshal for MPI
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pub fn serialize(&self, w: &mut dyn Write) -> Result<()>
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pub fn export(&self, o: &mut dyn Write) -> Result<()>
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impl MarshalInto for MPI
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pub fn serialized_len(&self) -> usize
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pub fn serialize_into(&self, buf: &mut [u8]) -> Result<usize>
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pub fn to_vec(&self) -> Result<Vec<u8>>
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pub fn export_into(&self, buf: &mut [u8]) -> Result<usize>
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pub fn export_to_vec(&self) -> Result<Vec<u8>>
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impl Ord for MPI
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pub fn cmp(&self, other: &MPI) -> Ordering
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#[must_use]pub fn max(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn min(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self
1.50.0[src]
impl<'a> Parse<'a, MPI> for MPI
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pub fn from_reader<R: Read + Send + Sync>(reader: R) -> Result<Self>
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pub fn from_file<P: AsRef<Path>>(path: P) -> Result<T>
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pub fn from_bytes<D: AsRef<[u8]> + ?Sized + Send + Sync>(
data: &'a D
) -> Result<T>
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data: &'a D
) -> Result<T>
impl PartialEq<MPI> for MPI
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pub fn eq(&self, other: &MPI) -> bool
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#[must_use]pub fn ne(&self, other: &Rhs) -> bool
1.0.0[src]
impl PartialOrd<MPI> for MPI
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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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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,
pub 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,
pub 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.
pub fn to_owned(&self) -> T
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pub 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.
pub 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>,