ring_compat::signature::ecdsa::der

Struct Signature

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pub struct Signature<C>
where
    C: PrimeCurve,
    <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>,
    <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,
{ /* private fields */ }
Available on crate feature signature only.
Expand description

ASN.1 DER-encoded signature as specified in RFC5912 Appendix A:

ECDSA-Sig-Value ::= SEQUENCE {
  r  INTEGER,
  s  INTEGER
}

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impl<C> Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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pub fn from_bytes(input: &[u8]) -> Result<Signature<C>, Error>

Parse signature from DER-encoded bytes.

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pub fn as_bytes(&self) -> &[u8] ⓘ

Borrow this signature as a byte slice

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

Available on crate feature alloc only.

Serialize this signature as a boxed byte slice

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pub fn len(&self) -> usize

Get the length of the signature in bytes

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impl<C> AsRef<[u8]> for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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fn as_ref(&self) -> &[u8] ⓘ

Converts this type into a shared reference of the (usually inferred) input type.
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impl<C> Clone for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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fn clone(&self) -> Signature<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> Debug for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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

Formats the value using the given formatter. Read more
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impl<'a, C> Decode<'a> for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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fn decode<R>(reader: &mut R) -> Result<Signature<C>, Error>
where R: Reader<'a>,

Attempt to decode this message using the provided decoder.
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fn from_der(bytes: &'a [u8]) -> Result<Self, Error>

Parse Self from the provided DER-encoded byte slice.
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impl<C> Encode for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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

Compute the length of this value in bytes when encoded as ASN.1 DER.
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fn encode(&self, writer: &mut impl Writer) -> Result<(), Error>

Encode this value as ASN.1 DER using the provided Writer.
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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.
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fn encode_to_vec(&self, buf: &mut Vec<u8>) -> Result<Length, Error>

Available on crate feature alloc only.
Encode this message as ASN.1 DER, appending it to the provided byte vector.
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fn to_der(&self) -> Result<Vec<u8>, Error>

Available on crate feature alloc only.
Encode this type as DER, returning a byte vector.
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impl<C> FixedTag for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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const TAG: Tag = Tag::Sequence

ASN.1 tag
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impl<C> From<Signature<C>> for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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

Converts to this type from the input type.
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impl<C> SignatureBitStringEncoding for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

Available on crate feature alloc only.
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fn to_bitstring(&self) -> Result<BitString, Error>

BitString encoding for this signature.
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impl<C> SignatureEncoding for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

Available on crate feature alloc only.
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type Repr = Box<[u8]>

Byte representation of a signature.
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fn to_vec(&self) -> Vec<u8> ⓘ

Encode signature as a byte vector.
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fn to_bytes(&self) -> Self::Repr

Encode signature as its byte representation.
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fn encoded_len(&self) -> usize

Get the length of this signature when encoded.
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impl<C> TryFrom<&[u8]> for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(input: &[u8]) -> Result<Signature<C>, Error>

Performs the conversion.
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impl<C> TryFrom<Signature<C>> for Signature<C>
where C: PrimeCurve, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>, <<C as Curve>::FieldBytesSize as Add>::Output: Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>> + ArrayLength<u8>,

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(sig: Signature<C>) -> Result<Signature<C>, Error>

Performs the conversion.

Auto Trait Implementations§

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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,

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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,

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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,

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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,

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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,

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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§

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

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fn can_decode(tag: Tag) -> bool

Is the provided Tag decodable as a variant of this CHOICE?
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impl<T> CloneToUninit for T
where T: Clone,

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> Same for T

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type Output = T

Should always be Self
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impl<T> Tagged for T
where T: FixedTag,

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fn tag(&self) -> Tag

Get the ASN.1 tag that this type is encoded with.
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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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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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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.
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impl<T> DecodeOwned for T
where T: for<'a> Decode<'a>,