ecdsa

Struct SignatureWithOid

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pub struct SignatureWithOid<C: PrimeCurve> { /* private fields */ }
Expand description

An extended Signature type which is parameterized by an ObjectIdentifier which identifies the ECDSA variant used by a particular signature.

Valid ObjectIdentifiers are defined in RFC5758 § 3.2:

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impl<C> SignatureWithOid<C>
where C: PrimeCurve,

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pub fn new(signature: Signature<C>, oid: ObjectIdentifier) -> Result<Self>

Create a new signature with an explicitly provided OID.

OID must begin with 1.2.840.10045.4, the RFC5758 OID prefix for ECDSA variants.

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pub fn new_with_digest<D>(signature: Signature<C>) -> Result<Self>
where D: AssociatedOid + Digest,

Create a new signature, determining the OID from the given digest.

Supports SHA-2 family digests as enumerated in RFC5758 § 3.2, i.e. SHA-224, SHA-256, SHA-384, or SHA-512.

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pub fn from_bytes_with_digest<D>(bytes: &SignatureBytes<C>) -> Result<Self>
where D: AssociatedOid + Digest, SignatureSize<C>: ArrayLength<u8>,

Parse a signature from fixed-with bytes.

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pub fn from_slice_with_digest<D>(slice: &[u8]) -> Result<Self>
where D: AssociatedOid + Digest, SignatureSize<C>: ArrayLength<u8>,

Parse a signature from a byte slice.

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pub fn signature(&self) -> &Signature<C>

Get the fixed-width ECDSA signature.

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pub fn oid(&self) -> ObjectIdentifier

Get the ECDSA OID for this signature.

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pub fn to_bytes(&self) -> SignatureBytes<C>
where SignatureSize<C>: ArrayLength<u8>,

Serialize this signature as bytes.

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impl<C: Clone + PrimeCurve> Clone for SignatureWithOid<C>

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fn clone(&self) -> SignatureWithOid<C>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<C, D> DigestSigner<D, SignatureWithOid<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, D: AssociatedOid + Digest + FixedOutput<OutputSize = FieldBytesSize<C>>, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>,

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fn try_sign_digest(&self, msg_digest: D) -> Result<SignatureWithOid<C>>

Attempt to sign the given prehashed message Digest, returning a digital signature on success, or an error if something went wrong.
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fn sign_digest(&self, digest: D) -> S

Sign the given prehashed message Digest, returning a signature. Read more
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impl<C> From<SignatureWithOid<C>> for SignatureBytes<C>
where C: PrimeCurve, SignatureSize<C>: ArrayLength<u8>,

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fn from(signature: SignatureWithOid<C>) -> SignatureBytes<C>

Converts to this type from the input type.
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impl<C> From<SignatureWithOid<C>> for Signature<C>
where C: PrimeCurve,

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fn from(sig: SignatureWithOid<C>) -> Signature<C>

Converts to this type from the input type.
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impl<C: PartialEq + PrimeCurve> PartialEq for SignatureWithOid<C>

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fn eq(&self, other: &SignatureWithOid<C>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<C> SignatureEncoding for SignatureWithOid<C>
where C: DigestPrimitive, C::Digest: AssociatedOid, SignatureSize<C>: ArrayLength<u8>,

NOTE: this implementation assumes the default digest for the given elliptic curve as defined by hazmat::DigestPrimitive.

When working with alternative digests, you will need to use e.g. SignatureWithOid::new_with_digest.

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type Repr = GenericArray<u8, <<C as Curve>::FieldBytesSize as Add>::Output>

Byte representation of a signature.
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fn to_bytes(&self) -> Self::Repr

Encode signature as its byte representation.
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fn to_vec(&self) -> Vec<u8> ⓘ

Encode signature as a byte vector.
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fn encoded_len(&self) -> usize

Get the length of this signature when encoded.
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impl<C> Signer<SignatureWithOid<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, C::Digest: AssociatedOid, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>,

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fn try_sign(&self, msg: &[u8]) -> Result<SignatureWithOid<C>>

Attempt to sign the given message, returning a digital signature on success, or an error if something went wrong. Read more
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fn sign(&self, msg: &[u8]) -> S

Sign the given message and return a digital signature
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impl<C> TryFrom<&[u8]> for SignatureWithOid<C>
where C: DigestPrimitive, C::Digest: AssociatedOid, SignatureSize<C>: ArrayLength<u8>,

NOTE: this implementation assumes the default digest for the given elliptic curve as defined by hazmat::DigestPrimitive.

When working with alternative digests, you will need to use e.g. SignatureWithOid::new_with_digest.

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(slice: &[u8]) -> Result<Self>

Performs the conversion.
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impl<C> Copy for SignatureWithOid<C>
where C: PrimeCurve, SignatureSize<C>: ArrayLength<u8>, <SignatureSize<C> as ArrayLength<u8>>::ArrayType: Copy,

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impl<C: Eq + PrimeCurve> Eq for SignatureWithOid<C>

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impl<C: PrimeCurve> StructuralPartialEq for SignatureWithOid<C>

Auto Trait Implementations§

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impl<C> Freeze for SignatureWithOid<C>
where <C as Curve>::Uint: Freeze,

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impl<C> RefUnwindSafe for SignatureWithOid<C>
where <C as Curve>::Uint: RefUnwindSafe,

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impl<C> Send for SignatureWithOid<C>

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impl<C> Sync for SignatureWithOid<C>

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impl<C> Unpin for SignatureWithOid<C>
where <C as Curve>::Uint: Unpin,

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impl<C> UnwindSafe for SignatureWithOid<C>
where <C as Curve>::Uint: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> Conv for T

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pipe for T
where T: ?Sized,

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
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where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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where Self: AsRef<R>, R: ?Sized,

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where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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where Self: Deref<Target = T>, T: ?Sized,

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where Self: DerefMut<Target = T> + Deref, T: ?Sized,

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Calls .tap() only in debug builds, and is erased in release builds.
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Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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where Self: BorrowMut<B>, B: ?Sized,

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where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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Uses borrowed data to replace owned data, usually by cloning. Read more
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where Self: TryInto<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.