Enum sequoia_openpgp::types::Curve [−][src]
pub enum Curve { NistP256, NistP384, NistP521, BrainpoolP256, BrainpoolP512, Ed25519, Cv25519, Unknown(Box<[u8]>), }
Elliptic curves used in OpenPGP.
PublicKeyAlgorithm
does not differentiate between elliptic
curves. Instead, the curve is specified using an OID prepended to
the key material. We provide this type to be able to match on the
curves.
Note: This enum cannot be exhaustively matched to allow future extensions.
Variants
NIST curve P-256.
NIST curve P-384.
NIST curve P-521.
brainpoolP256r1.
brainpoolP512r1.
D.J. Bernstein’s “Twisted” Edwards curve Ed25519.
Elliptic curve Diffie-Hellman using D.J. Bernstein’s Curve25519.
Unknown curve.
Implementations
impl Curve
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impl Curve
[src]pub fn bits(&self) -> Option<usize>
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pub fn bits(&self) -> Option<usize>
[src]Returns the length of public keys over this curve in bits.
For the Kobliz curves this is the size of the underlying finite field. For X25519 it is 256.
Note: This information is useless and should not be used to gauge the security of a particular curve. This function exists only because some legacy PGP application like HKP need it.
Returns None
for unknown curves.
Examples
use sequoia_openpgp as openpgp; use openpgp::types::Curve; assert_eq!(Curve::NistP256.bits(), Some(256)); assert_eq!(Curve::NistP384.bits(), Some(384)); assert_eq!(Curve::Ed25519.bits(), Some(256)); assert_eq!(Curve::Unknown(Box::new([0x2B, 0x11])).bits(), None);
impl Curve
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impl Curve
[src]pub fn from_oid(oid: &[u8]) -> Curve
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pub fn from_oid(oid: &[u8]) -> Curve
[src]Parses the given OID.
Examples
use sequoia_openpgp as openpgp; use openpgp::types::Curve; assert_eq!(Curve::from_oid(&[0x2B, 0x81, 0x04, 0x00, 0x22]), Curve::NistP384); assert_eq!(Curve::from_oid(&[0x2B, 0x11]), Curve::Unknown(Box::new([0x2B, 0x11])));
pub fn oid(&self) -> &[u8]ⓘ
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pub fn oid(&self) -> &[u8]ⓘ
[src]Returns this curve’s OID.
Examples
use sequoia_openpgp as openpgp; use openpgp::types::Curve; assert_eq!(Curve::NistP384.oid(), &[0x2B, 0x81, 0x04, 0x00, 0x22]); assert_eq!(Curve::Unknown(Box::new([0x2B, 0x11])).oid(), &[0x2B, 0x11]);
pub fn len(&self) -> Result<usize>
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pub fn len(&self) -> Result<usize>
[src]Returns the length of a coordinate in bits.
Examples
use sequoia_openpgp as openpgp; use openpgp::types::Curve; assert!(if let Ok(256) = Curve::NistP256.len() { true } else { false }); assert!(if let Ok(384) = Curve::NistP384.len() { true } else { false }); assert!(if let Ok(256) = Curve::Ed25519.len() { true } else { false }); assert!(if let Err(_) = Curve::Unknown(Box::new([0x2B, 0x11])).len() { true } else { false });
Errors
Returns Error::UnsupportedEllipticCurve
if the curve is not
supported.
pub fn is_supported(&self) -> bool
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pub fn is_supported(&self) -> bool
[src]Returns whether this algorithm is supported.
Examples
use sequoia_openpgp as openpgp; use openpgp::types::Curve; assert!(Curve::NistP256.is_supported()); assert!(Curve::NistP384.is_supported()); assert!(Curve::Ed25519.is_supported()); assert!(!Curve::Unknown(Box::new([0x2B, 0x11])).is_supported());
Trait Implementations
impl Ord for Curve
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impl Ord for Curve
[src]impl PartialOrd<Curve> for Curve
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impl PartialOrd<Curve> for Curve
[src]fn partial_cmp(&self, other: &Curve) -> Option<Ordering>
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fn partial_cmp(&self, other: &Curve) -> Option<Ordering>
[src]This method returns an ordering between self
and other
values if one exists. Read more
#[must_use]fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn lt(&self, other: &Rhs) -> bool
1.0.0[src]This method tests less than (for self
and other
) and is used by the <
operator. Read more
#[must_use]fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn le(&self, other: &Rhs) -> bool
1.0.0[src]This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
impl Eq for Curve
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impl StructuralEq for Curve
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impl StructuralPartialEq for Curve
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Auto Trait Implementations
impl RefUnwindSafe for Curve
impl Send for Curve
impl Sync for Curve
impl Unpin for Curve
impl UnwindSafe for Curve
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> Same<T> for T
impl<T> Same<T> for T
type Output = T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more