Enum CryptoError 

pub enum CryptoError {
    InvalidKeyFormat(String),
    KeyNotFound,
    VerificationFailed,
    DecryptionFailed(String),
    SigningFailed(String),
    EncryptionFailed(String),
    UnsupportedAlgorithm(String),
    Other(String),
}

Errors specific to cryptographic operations.

These errors occur within SignatureVerifier, Decryptor, and related crypto implementations.

CryptoError automatically converts to Claim169Error when returned from the main decoding functions.

Implementing Custom Crypto

When implementing custom cryptographic backends, return appropriate CryptoError variants:

impl SignatureVerifier for MyHsmVerifier {
    fn verify(&self, algorithm: Algorithm, key_id: Option<&[u8]>,
              data: &[u8], signature: &[u8]) -> CryptoResult<()> {
        if !self.has_key(key_id) {
            return Err(CryptoError::KeyNotFound);
        }
        if !self.supports_algorithm(algorithm) {
            return Err(CryptoError::UnsupportedAlgorithm(format!("{:?}", algorithm)));
        }
        // ... perform verification
        if !valid {
            return Err(CryptoError::VerificationFailed);
        }
        Ok(())
    }
}

Variants

InvalidKeyFormat(String)

Invalid key format

KeyNotFound

Key not found

VerificationFailed

Signature verification failed

DecryptionFailed(String)

Decryption failed

SigningFailed(String)

Signing failed (for custom signer callbacks)

EncryptionFailed(String)

Encryption failed (for custom encryptor callbacks)

UnsupportedAlgorithm(String)

Unsupported algorithm

Other(String)

Generic crypto error

Trait Implementations

impl Debug for CryptoError

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

Formats the value using the given formatter.

impl Display for CryptoError

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

Formats the value using the given formatter.

impl Error for CryptoError

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<CryptoError> for Claim169Error

fn from(err: CryptoError) -> Self

Converts to this type from the input type.