Enum DecryptError 

#[non_exhaustive]
pub enum DecryptError {
    NoMatchingKey,
    Other {
        source: Error,
    },
}

Errors that could occur during AEAD decryption.

The variants are load-bearing control flow between decryptor layers: NoMatchingKey drives the refresh-and-retry loop in RetryingDecryptor and candidate dispatch in MultiKeyDecryptor — the cipher analogue of VerifyError. Only its Other source is the concrete Error.

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.

NoMatchingKey

No key matched the requested algorithm/kid criteria — decryption was not attempted.

Other

Other kinds of errors that could occur during decryption, including authentication failure.

Fields

source: Error

The underlying error.

Implementations

impl DecryptError

pub fn is_retryable(&self) -> bool

If true, a failed decryption may succeed if retried.

Trait Implementations

impl Debug for DecryptError

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

Formats the value using the given formatter.

impl Display for DecryptError

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

Formats the value using the given formatter.

impl Error for DecryptError

where Self: Debug + Display,

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 ErrorCompat for DecryptError

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

Returns a Backtrace that may be printed.

fn iter_chain(&self) -> ChainCompat<'_, '_>

where Self: AsErrorSource,

Returns an iterator for traversing the chain of errors, starting with the current error and continuing with recursive calls to Error::source.

impl From<Error> for DecryptError

where Error: Into<Error>,

fn from(error: Error) -> Self

Converts to this type from the input type.