Struct ecdsa :: der :: Signature Copy item path

impl<C> Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

pub fn from_bytes(input: &[u8]) -> Result<Self>

Parse signature from DER-encoded bytes.

pub fn as_bytes(&self) -> &[u8] ⓘ

Borrow this signature as a byte slice

pub fn to_bytes(&self) -> Box<[u8]>

Serialize this signature as a boxed byte slice

pub fn len(&self) -> usize

Get the length of the signature in bytes

Trait Implementations§

impl<C> AsRef<[u8]> for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn as_ref(&self) -> &[u8] ⓘ

Converts this type into a shared reference of the (usually inferred) input type.

impl<C> Clone for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl<C> Debug for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

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

Formats the value using the given formatter. Read more

impl<'a, C> Decode<'a> for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn decode<R: Reader<'a>>(reader: &mut R) -> Result<Self>

Attempt to decode this message using the provided decoder.

fn from_der(bytes: &'a [u8]) -> Result<Self, Error>

Parse Self from the provided DER-encoded byte slice.

impl<'de, C> Deserialize<'de> for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl<C, D> DigestVerifier<D, Signature<C>> for VerifyingKey<C>
where C: PrimeCurve + CurveArithmetic, D: Digest + FixedOutput<OutputSize = FieldBytesSize<C>>, AffinePoint<C>: VerifyPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn verify_digest(&self, msg_digest: D, signature: &Signature<C>) -> Result<()>

Verify the signature against the given Digest output.

impl<C> Encode for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn encoded_len(&self) -> Result<Length>

Compute the length of this value in bytes when encoded as ASN.1 DER.

fn encode(&self, writer: &mut impl Writer) -> Result<()>

Encode this value as ASN.1 DER using the provided Writer.

fn encode_to_slice<'a>(&self, buf: &'a mut [u8]) -> Result<&'a [u8], Error>

Encode this value to the provided byte slice, returning a sub-slice containing the encoded message.

fn encode_to_vec(&self, buf: &mut Vec<u8>) -> Result<Length, Error>

Encode this message as ASN.1 DER, appending it to the provided byte vector.

fn to_der(&self) -> Result<Vec<u8>, Error>

Encode this type as DER, returning a byte vector.

impl<C> FixedTag for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

const TAG: Tag = Tag::Sequence

ASN.1 tag

impl<C> From<Signature<C>> for Box<[u8]>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn from(signature: Signature<C>) -> Box<[u8]>

Converts to this type from the input type.

impl<C> From<Signature<C>> for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

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

Converts to this type from the input type.

impl<C> PrehashSignature for Signature<C>
where C: PrimeCurve + DigestPrimitive, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

type Digest = <C as DigestPrimitive>::Digest

Preferred Digest algorithm to use when computing this signature type.

impl<C> PrehashSigner<Signature<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn sign_prehash(&self, prehash: &[u8]) -> Result<Signature<C>>

Attempt to sign the given message digest, returning a digital signature on success, or an error if something went wrong. Read more

impl<C> PrehashVerifier<Signature<C>> for VerifyingKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, AffinePoint<C>: VerifyPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn verify_prehash(&self, prehash: &[u8], signature: &Signature<C>) -> Result<()>

Use Self to verify that the provided signature for a given message prehash is authentic. Read more

impl<C, D> RandomizedDigestSigner<D, Signature<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, D: Digest + FixedOutput<OutputSize = FieldBytesSize<C>>, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn try_sign_digest_with_rng( &self, rng: &mut impl CryptoRngCore, msg_digest: D, ) -> Result<Signature<C>>

Attempt to sign the given prehashed message Digest, returning a digital signature on success, or an error if something went wrong.

fn sign_digest_with_rng(&self, rng: &mut impl CryptoRngCore, digest: D) -> S

Sign the given prehashed message Digest, returning a signature. Read more

impl<C> RandomizedPrehashSigner<Signature<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn sign_prehash_with_rng( &self, rng: &mut impl CryptoRngCore, prehash: &[u8], ) -> Result<Signature<C>>

Attempt to sign the given message digest, returning a digital signature on success, or an error if something went wrong. Read more

impl<C> RandomizedSigner<Signature<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8], ) -> Result<Signature<C>>

Attempt to sign the given message, returning a digital signature on success, or an error if something went wrong. Read more

fn sign_with_rng(&self, rng: &mut impl CryptoRngCore, msg: &[u8]) -> S

Sign the given message and return a digital signature

impl<C> Serialize for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl<C> SignatureBitStringEncoding for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn to_bitstring(&self) -> Result<BitString>

BitString encoding for this signature.

impl<C> SignatureEncoding for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

type Repr = Box<[u8]>

Byte representation of a signature.

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

Encode signature as a byte vector.

fn to_bytes(&self) -> Self::Repr

Encode signature as its byte representation.

fn encoded_len(&self) -> usize

Get the length of this signature when encoded.

impl<C> Signer<Signature<C>> for SigningKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, Scalar<C>: Invert<Output = CtOption<Scalar<C>>> + SignPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

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

Attempt to sign the given message, returning a digital signature on success, or an error if something went wrong. Read more

fn sign(&self, msg: &[u8]) -> S

Sign the given message and return a digital signature

impl<C> TryFrom<&[u8]> for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

type Error = Error

The type returned in the event of a conversion error.

fn try_from(input: &[u8]) -> Result<Self>

Performs the conversion.

impl<C> TryFrom<Signature<C>> for Signature<C>
where C: PrimeCurve, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

type Error = Error

The type returned in the event of a conversion error.

fn try_from(sig: Signature<C>) -> Result<Signature<C>>

Performs the conversion.

impl<C> Verifier<Signature<C>> for VerifyingKey<C>
where C: PrimeCurve + CurveArithmetic + DigestPrimitive, AffinePoint<C>: VerifyPrimitive<C>, SignatureSize<C>: ArrayLength<u8>, MaxSize<C>: ArrayLength<u8>, <FieldBytesSize<C> as Add>::Output: Add<MaxOverhead> + ArrayLength<u8>,

fn verify(&self, msg: &[u8], signature: &Signature<C>) -> Result<()>

Use Self to verify that the provided signature for a given message bytestring is authentic. Read more

Auto Trait Implementations§

impl<C> Freeze for Signature<C>
where <<C as Curve>::FieldBytesSize as Add>::Output: Sized, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: Sized, <<<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output as ArrayLength<u8>>::ArrayType: Freeze,

impl<C> RefUnwindSafe for Signature<C>
where <<C as Curve>::FieldBytesSize as Add>::Output: Sized, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: Sized, <<<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output as ArrayLength<u8>>::ArrayType: RefUnwindSafe,

impl<C> Send for Signature<C>
where <<C as Curve>::FieldBytesSize as Add>::Output: Sized, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: Sized,

impl<C> Sync for Signature<C>
where <<C as Curve>::FieldBytesSize as Add>::Output: Sized, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: Sized,

impl<C> Unpin for Signature<C>
where <<C as Curve>::FieldBytesSize as Add>::Output: Sized, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: Sized, <<<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output as ArrayLength<u8>>::ArrayType: Unpin,

impl<C> UnwindSafe for Signature<C>
where <<C as Curve>::FieldBytesSize as Add>::Output: Sized, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: Sized, <<<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output as ArrayLength<u8>>::ArrayType: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<'a, T> Choice<'a> for T
where T: Decode<'a> + FixedTag,

fn can_decode(tag: Tag) -> bool

Is the provided Tag decodable as a variant of this CHOICE?

impl<T> CloneToUninit for T
where T: Clone,

default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> Same for T

type Output = T

Should always be Self

impl<T> Tagged for T
where T: FixedTag,

fn tag(&self) -> Tag

Get the ASN.1 tag that this type is encoded with.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<T> DecodeOwned for T
where T: for<'a> Decode<'a>,