Enum Error 

#[non_exhaustive]
pub enum Error {
    UnsupportedVersion(u8),
    UnsupportedSuite(u8),
    LegacyV1Artifact,
    InvalidKey,
    InvalidEnvelope,
    InvalidSignature,
    DecryptionFailed,
    VerificationFailed,
    MessageTooLarge {
        len: usize,
        max: usize,
    },
    ContextTooLong,
    RandomnessUnavailable,
    NoRecipients,
    TooManyRecipients {
        count: usize,
        max: usize,
    },
    StreamFinished,
    StreamTruncated,
}

Errors that can occur during cryptographic operations.

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.

UnsupportedVersion(u8)

The wire object declares a format version this crate does not support.

UnsupportedSuite(u8)

The wire object declares a cipher suite this crate does not support.

LegacyV1Artifact

The input is a quantum-shield 0.1.x JSON artifact. The v1 format is cryptographically broken and unsupported by design.

InvalidKey

Key material failed to parse or validate.

InvalidEnvelope

An envelope failed to parse (wrong magic, truncated, or malformed).

InvalidSignature

A signature failed to parse (wrong magic, truncated, or malformed).

DecryptionFailed

Decryption failed. No further detail is provided by design.

VerificationFailed

Signature verification failed. No further detail is provided by design.

MessageTooLarge

The plaintext exceeds MAX_PLAINTEXT_LEN.

Fields

len: usize

Length of the rejected message in bytes.

max: usize

The enforced limit in bytes.

ContextTooLong

The signing context exceeds MAX_CONTEXT_LEN.

RandomnessUnavailable

The operating system’s secure random number generator failed.

NoRecipients

A multi-recipient envelope was requested with no recipients.

TooManyRecipients

A multi-recipient envelope exceeds MAX_RECIPIENTS.

Fields

count: usize

The rejected recipient count.

max: usize

The enforced limit.

StreamFinished

A streaming chunk was submitted after the final chunk.

StreamTruncated

A stream ended without a final chunk (possible truncation).

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

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 PartialEq for Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error