Enum ProviderError 

#[non_exhaustive]
pub enum ProviderError {
    KeyNotExportable,
    External(ExternalProviderError),
    Unsupported {
        operation: ProviderOperation,
        algorithm: Option<String>,
    },
    InvalidKeySize {
        expected: usize,
        actual: usize,
    },
    InvalidOutputSize {
        operation: ProviderOperation,
        expected: usize,
        actual: usize,
    },
    InvalidOutputSizeRange {
        operation: ProviderOperation,
        minimum: usize,
        maximum: usize,
        actual: usize,
    },
    InvalidInput(ProviderInputError),
    AuthenticationFailed,
    Random(String),
}

Failure returned by a cryptographic provider.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

KeyNotExportable

A secret-bearing external handle cannot be exported as bytes.

External(ExternalProviderError)

Redacted external-provider failure: never includes credentials or selectors.

Unsupported

The selected provider does not implement the operation/parameters.

Fields

operation: ProviderOperation

Requested operation.

algorithm: Option<String>

Requested algorithm URI or name.

InvalidKeySize

A key has the wrong size for the selected algorithm.

Fields

expected: usize

Required key length.

actual: usize

Supplied key length.

InvalidOutputSize

A provider reported success but returned bytes that violate the selected operation’s fixed-size output contract.

Fields

operation: ProviderOperation

Operation whose output contract was violated.

expected: usize

Exact output length required by the algorithm.

actual: usize

Actual provider output length.

InvalidOutputSizeRange

A provider reported success but returned bytes outside the selected operation’s variable-size output contract.

Fields

operation: ProviderOperation

Operation whose output contract was violated.

minimum: usize

Smallest output length permitted by the algorithm.

maximum: usize

Largest output length permitted by the algorithm.

actual: usize

Actual provider output length.

InvalidInput(ProviderInputError)

Input framing, padding, or primitive initialization is invalid.

AuthenticationFailed

Authenticated decryption or key-wrap integrity validation failed.

Random(String)

Operating-system randomness was unavailable.

Trait Implementations

impl Clone for ProviderError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProviderError

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

Formats the value using the given formatter.

impl Display for ProviderError

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

Formats the value using the given formatter.

impl Eq for ProviderError

impl Error for ProviderError

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

Returns the lower-level source of this error, if any.

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

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<ProviderError> for KeyEstablishmentError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for KeyStoreError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for ParseError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for SigningDigestError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for SigningKeyError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for KeyInfoWriteError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for ReferenceProcessingError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for DsigError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for X509ChainError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl From<ProviderError> for XmlEncError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.

impl PartialEq for ProviderError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ProviderError