Struct k256::ecdsa::recoverable::Signature

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pub struct Signature { /* private fields */ }

Expand description

Ethereum-style “recoverable signatures” which allow for the recovery of the signer’s VerifyingKey from the signature itself.

This format consists of Signature followed by a 1-byte recovery Id (65-bytes total):

r: 32-byte integer, big endian
s: 32-byte integer, big endian
v: 1-byte recovery Id

Implementations

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impl Signature

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pub fn new(signature: &Signature, recovery_id: Id) -> Result<Self, Error>

Create a new recoverable ECDSA/secp256k1 signature from a regular fixed-size signature and an associated recovery Id.

This is an “unchecked” conversion and assumes the provided Id is valid for this signature.

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pub fn recovery_id(self) -> Id

Get the recovery Id for this signature

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pub fn from_digest_trial_recovery<D>(
 public_key: &VerifyingKey,
 digest: D,
 signature: &Signature
) -> Result<Self, Error> where
 D: Clone + Digest<OutputSize = U32>,

Given a public key, message digest, and signature, use trial recovery to determine if a suitable recovery ID exists, or return an error otherwise.

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pub fn recover_verify_key_from_digest<D>(
 &self,
 msg_digest: D
) -> Result<VerifyingKey, Error> where
 D: Digest<OutputSize = U32>,

Recover the public key used to create the given signature as a VerifyingKey from the provided precomputed Digest.

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pub fn recover_verify_key_from_digest_bytes(
&self,
digest_bytes: &FieldBytes
) -> Result<VerifyingKey, Error>

Recover the public key used to create the given signature as a VerifyingKey from the raw bytes of a message digest.

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pub fn r(&self) -> NonZeroScalar

Parse the r component of this signature to a NonZeroScalar

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pub fn s(&self) -> NonZeroScalar

Parse the s component of this signature to a NonZeroScalar

Trait Implementations

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impl AsRef<[u8 ]> for Signature

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fn as_ref(&self) -> &[u8 ]

Performs the conversion.

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impl Clone for Signature

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fn clone(&self) -> Signature

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 Debug for Signature

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

Formats the value using the given formatter. Read more

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impl<D> DigestSigner<D, Signature> for SigningKey where
D: BlockInput + FixedOutput<OutputSize = U32> + Clone + Default + Reset + Update,

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fn try_sign_digest(&self, digest: D) -> Result<Signature, Error>

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

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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<D> DigestVerifier<D, Signature> for VerifyingKey where
D: Digest<OutputSize = U32>,

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fn verify_digest(&self, digest: D, signature: &Signature) -> Result<(), Error>

Verify the signature against the given Digest output.

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impl From<Signature> for Signature

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fn from(sig: Signature) -> Self

Performs the conversion.

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impl PartialEq<Signature> for Signature

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fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl<D> RandomizedDigestSigner<D, Signature> for SigningKey where
D: BlockInput + FixedOutput<OutputSize = U32> + Clone + Default + Reset + Update,

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fn try_sign_digest_with_rng(
 &self,
 rng: impl CryptoRng + RngCore,
 digest: D
) -> Result<Signature, Error>

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

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fn sign_digest_with_rng(&self, rng: impl CryptoRng + RngCore, digest: D) -> S

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

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impl Signature for Signature

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

Parse a signature from its byte representation

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fn as_bytes(&self) -> &[u8 ]

Borrow a byte slice representing the serialized form of this signature

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impl TryFrom<&'_ [u8 ]> for Signature

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl Copy for Signature

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impl Eq for Signature

Auto Trait Implementations

impl RefUnwindSafe for Signature

impl Send for Signature

impl Sync for Signature

impl Unpin for Signature

impl UnwindSafe for Signature

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<A, T> AsBits<T> for A where
A: AsRef<[T]>,
T: BitStore + BitMemory,

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pub fn as_bits<O>(&self) -> &BitSlice<O, T> where
O: BitOrder,

Views memory as a slice of immutable bits. Read more

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

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

Mutably borrows from an owned value. 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 a target type. 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. Read more

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fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted. Read more

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fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted. Read more

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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. Read more

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fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted. Read more

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fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted. Read more

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

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impl<T> Pipe for T

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

Pipes a value into a function that cannot ordinarily be called in suffix position. Read more

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impl<T> PipeAsRef for T

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fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
 Self: AsRef<T>,
 T: 'a,
 R: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

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fn pipe_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where
 Self: AsMut<T>,
 T: 'a,
 R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

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impl<T> PipeBorrow for T

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fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
 Self: Borrow<T>,
 T: 'a,
 R: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

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fn pipe_borrow_mut<'a, T, R>(
 &'a mut self,
 func: impl FnOnce(&'a mut T) -> R
) -> R where
 Self: BorrowMut<T>,
 T: 'a,
 R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

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impl<T> PipeDeref for T

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fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,

Pipes a dereference into a function that cannot normally be called in suffix position. Read more

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fn pipe_deref_mut<'a, R>(
 &'a mut self,
 func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
 Self: DerefMut,
 R: 'a,

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more

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impl<T> PipeRef for T

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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,

Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more

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fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,

Pipes a mutable reference into a function that cannot ordinarily be called in suffix position. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> Tap for T

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fn tap<F, R>(self, func: F) -> Self where
F: FnOnce(&Self) -> R,

Provides immutable access for inspection. Read more

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fn tap_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&Self) -> R,

Calls tap in debug builds, and does nothing in release builds.

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fn tap_mut<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self) -> R,

Provides mutable access for modification. Read more

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fn tap_mut_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self) -> R,

Calls tap_mut in debug builds, and does nothing in release builds.

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impl<T, U> TapAsRef for T where
U: ?Sized,

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fn tap_ref<F, R>(self, func: F) -> Self where
Self: AsRef<T>,
F: FnOnce(&T) -> R,

Provides immutable access to the reference for inspection.

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fn tap_ref_dbg<F, R>(self, func: F) -> Self where
Self: AsRef<T>,
F: FnOnce(&T) -> R,

Calls tap_ref in debug builds, and does nothing in release builds.

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fn tap_ref_mut<F, R>(self, func: F) -> Self where
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,

Provides mutable access to the reference for modification.

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fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self where
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,

Calls tap_ref_mut in debug builds, and does nothing in release builds.

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impl<T, U> TapBorrow for T where
U: ?Sized,

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fn tap_borrow<F, R>(self, func: F) -> Self where
Self: Borrow<T>,
F: FnOnce(&T) -> R,

Provides immutable access to the borrow for inspection. Read more

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fn tap_borrow_dbg<F, R>(self, func: F) -> Self where
Self: Borrow<T>,
F: FnOnce(&T) -> R,

Calls tap_borrow in debug builds, and does nothing in release builds.

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fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,

Provides mutable access to the borrow for modification.

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fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,

Calls tap_borrow_mut in debug builds, and does nothing in release builds. Read more

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impl<T> TapDeref for T

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fn tap_deref<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,

Immutably dereferences self for inspection.

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fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,

Calls tap_deref in debug builds, and does nothing in release builds.

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fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,

Mutably dereferences self for modification.

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fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,

Calls tap_deref_mut in debug builds, and does nothing in release builds. Read more

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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error> where
Self: TryInto<T>,

Attempts to convert self into a target type. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

Struct k256::ecdsa::recoverable::Signature

Implementations

impl Signature

pub fn new(signature: &Signature, recovery_id: Id) -> Result<Self, Error>

pub fn recovery_id(self) -> Id

pub fn from_digest_trial_recovery<D>( public_key: &VerifyingKey, digest: D, signature: &Signature) -> Result<Self, Error> where D: Clone + Digest<OutputSize = U32>,

pub fn recover_verify_key_from_digest<D>( &self, msg_digest: D) -> Result<VerifyingKey, Error> where D: Digest<OutputSize = U32>,

pub fn recover_verify_key_from_digest_bytes( &self, digest_bytes: &FieldBytes) -> Result<VerifyingKey, Error>

pub fn r(&self) -> NonZeroScalar

pub fn s(&self) -> NonZeroScalar

Trait Implementations

impl AsRef<[u8]> for Signature

fn as_ref(&self) -> &[u8]

impl Clone for Signature

fn clone(&self) -> Signature

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

impl Debug for Signature

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

impl<D> DigestSigner<D, Signature> for SigningKey where D: BlockInput + FixedOutput<OutputSize = U32> + Clone + Default + Reset + Update,

fn try_sign_digest(&self, digest: D) -> Result<Signature, Error>

fn sign_digest(&self, digest: D) -> S

impl<D> DigestVerifier<D, Signature> for VerifyingKey where D: Digest<OutputSize = U32>,

fn verify_digest(&self, digest: D, signature: &Signature) -> Result<(), Error>

impl From<Signature> for Signature

fn from(sig: Signature) -> Self

impl PartialEq<Signature> for Signature

fn eq(&self, other: &Self) -> bool

fn ne(&self, other: &Rhs) -> bool

impl<D> RandomizedDigestSigner<D, Signature> for SigningKey where D: BlockInput + FixedOutput<OutputSize = U32> + Clone + Default + Reset + Update,

fn try_sign_digest_with_rng( &self, rng: impl CryptoRng + RngCore, digest: D) -> Result<Signature, Error>

fn sign_digest_with_rng(&self, rng: impl CryptoRng + RngCore, digest: D) -> S

impl Signature for Signature

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

fn as_bytes(&self) -> &[u8]

impl TryFrom<&'_ [u8]> for Signature

type Error = Error

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

impl Copy for Signature

impl Eq for Signature

Auto Trait Implementations

impl RefUnwindSafe for Signature

impl Send for Signature

impl Sync for Signature

impl Unpin for Signature

impl UnwindSafe for Signature

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<A, T> AsBits<T> for A where A: AsRef<[T]>, T: BitStore + BitMemory,

pub fn as_bits<O>(&self) -> &BitSlice<O, T> where O: BitOrder,

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

pub fn borrow(&self) -> &T

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

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

impl<T> Conv for T

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

impl<T> FmtForward for T

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

fn fmt_display(self) -> FmtDisplay<Self> where Self: Display,

fn fmt_lower_exp(self) -> FmtLowerExp<Self> where Self: LowerExp,

fn fmt_lower_hex(self) -> FmtLowerHex<Self> where Self: LowerHex,

fn fmt_octal(self) -> FmtOctal<Self> where Self: Octal,

fn fmt_pointer(self) -> FmtPointer<Self> where Self: Pointer,

fn fmt_upper_exp(self) -> FmtUpperExp<Self> where Self: UpperExp,

fn fmt_upper_hex(self) -> FmtUpperHex<Self> where Self: UpperHex,

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pipe for T

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

impl<T> PipeAsRef for T

fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where Self: AsRef<T>, T: 'a, R: 'a,

fn pipe_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where Self: AsMut<T>, T: 'a, R: 'a,

impl<T> PipeBorrow for T

fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where Self: Borrow<T>, T: 'a, R: 'a,

fn pipe_borrow_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where Self: BorrowMut<T>, T: 'a, R: 'a,

impl<T> PipeDeref for T

fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where Self: Deref, R: 'a,

fn pipe_deref_mut<'a, R>( &'a mut self, func: impl FnOnce(&'a mut Self::Target) -> R) -> R where Self: DerefMut, R: 'a,

pub fn from_digest_trial_recovery<D>(
public_key: &VerifyingKey,
digest: D,
signature: &Signature
) -> Result<Self, Error> where
D: Clone + Digest<OutputSize = U32>,

pub fn recover_verify_key_from_digest<D>(
&self,
msg_digest: D
) -> Result<VerifyingKey, Error> where
D: Digest<OutputSize = U32>,

pub fn recover_verify_key_from_digest_bytes(
&self,
digest_bytes: &FieldBytes
) -> Result<VerifyingKey, Error>

impl AsRef<[u8 ]> for Signature

fn as_ref(&self) -> &[u8 ]

impl<D> DigestSigner<D, Signature> for SigningKey where
D: BlockInput + FixedOutput<OutputSize = U32> + Clone + Default + Reset + Update,

impl<D> DigestVerifier<D, Signature> for VerifyingKey where
D: Digest<OutputSize = U32>,

impl<D> RandomizedDigestSigner<D, Signature> for SigningKey where
D: BlockInput + FixedOutput<OutputSize = U32> + Clone + Default + Reset + Update,

fn try_sign_digest_with_rng(
&self,
rng: impl CryptoRng + RngCore,
digest: D
) -> Result<Signature, Error>

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

fn as_bytes(&self) -> &[u8 ]

impl TryFrom<&'_ [u8 ]> for Signature

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

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

impl<A, T> AsBits<T> for A where
A: AsRef<[T]>,
T: BitStore + BitMemory,

pub fn as_bits<O>(&self) -> &BitSlice<O, T> where
O: BitOrder,

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

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

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

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

fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,

fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,

fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,

fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,

fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,

fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,

fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,

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

fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,

fn pipe_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where
Self: AsMut<T>,
T: 'a,
R: 'a,

fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,

fn pipe_borrow_mut<'a, T, R>(
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: BorrowMut<T>,
T: 'a,
R: 'a,

fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,

fn pipe_deref_mut<'a, R>(
&'a mut self,
func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
Self: DerefMut,
R: 'a,

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,

fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,

fn tap<F, R>(self, func: F) -> Self where
F: FnOnce(&Self) -> R,

fn tap_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&Self) -> R,

fn tap_mut<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self) -> R,

fn tap_mut_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self) -> R,

impl<T, U> TapAsRef<U> for T where
U: ?Sized,

fn tap_ref<F, R>(self, func: F) -> Self where
Self: AsRef<T>,
F: FnOnce(&T) -> R,

fn tap_ref_dbg<F, R>(self, func: F) -> Self where
Self: AsRef<T>,
F: FnOnce(&T) -> R,

fn tap_ref_mut<F, R>(self, func: F) -> Self where
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,

fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self where
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,

impl<T, U> TapBorrow<U> for T where
U: ?Sized,

fn tap_borrow<F, R>(self, func: F) -> Self where
Self: Borrow<T>,
F: FnOnce(&T) -> R,

fn tap_borrow_dbg<F, R>(self, func: F) -> Self where
Self: Borrow<T>,
F: FnOnce(&T) -> R,

fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,

fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,

fn tap_deref<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,

fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,

fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,

fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,

fn try_conv<T>(self) -> Result<T, Self::Error> where
Self: TryInto<T>,

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

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