Struct ed25519_dalek::errors::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 Eq for SignatureError

impl PartialEq 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 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 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 Fail for SignatureError

fn cause(&self) -> Option<&Fail>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors.

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

Returns a reference to the Backtrace carried by this failure, if it carries one.

fn context<D>(self, context: D) -> Context<D> where     D: Display + Send + Sync + 'static,

Provides context for this failure.

fn compat(self) -> Compat<Self>

Wraps this failure in a compatibility wrapper that implements std::error::Error.