Struct ed25519_dalek::SignatureError

pub struct SignatureError(_);

Errors which may occur while processing signatures and keypairs.

This error may arise due to:

• Being given bytes with a length different to what was expected.

• A problem decompressing r, a curve point, in the Signature, or the curve point for a PublicKey.

• A problem with the format of s, a scalar, in the Signature. This is only raised if the high-bit of the scalar was set. (Scalars must only be constructed from 255-bit integers.)

• Failure of a signature to satisfy the verification equation.

Trait Implementations

impl Clone for SignatureError

fn clone(&self) -> SignatureError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for SignatureError

impl Debug for SignatureError

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

Formats the value using the given formatter.

impl Display for SignatureError

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

Formats the value using the given formatter.

impl Eq for SignatureError

impl Error for SignatureError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl Hash for SignatureError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<SignatureError> for SignatureError

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

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

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

This method tests for !=.

impl StructuralEq for SignatureError

impl StructuralPartialEq for SignatureError