Struct ring_compat::signature::ecdsa::der::Signature

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 features signature and der only.

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

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

Implementations

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>,

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

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]>

Available on crate feature alloc only.

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, <<<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>,

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, <<<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>,

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

Returns a copy of the value.

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

Performs copy-assignment from source.

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>,

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

Formats the value using the given formatter.

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>,

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

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<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>,

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

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

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

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>

Available on crate feature alloc only.

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

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

Available on crate feature alloc only.

Encode this type as DER, returning a byte vector.

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>,

const TAG: Tag = Tag::Sequence

ASN.1 tag

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>,

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

Converts to this type from the input type.

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.

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

BitString encoding for this signature.

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.

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> 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>,

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

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>,

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.