Enum CrabError 

pub enum CrabError {
    InvalidInput(String),
    CryptoError(String),
    KeyError(String),
    AuthenticationFailed,
    SignatureVerificationFailed,
    InvalidNonce(String),
    InvalidCiphertext(String),
    EncodingError(String),
    RandomError(String),
    SerializationError(String),
    FeatureNotEnabled(String),
    Internal(String),
}

Unified error type for all CrabGraph operations.

This enum covers encryption, key derivation, signing, and other cryptographic operations. Error messages are designed to be safe for logging and never expose sensitive data like keys or plaintexts.

Variants

InvalidInput(String)

Invalid input parameter (e.g., wrong key size, empty data)

CryptoError(String)

Cryptographic operation failed (e.g., decryption, verification)

KeyError(String)

Key generation or derivation failed

AuthenticationFailed

Authentication tag verification failed

SignatureVerificationFailed

Signature verification failed

InvalidNonce(String)

Invalid nonce or IV

InvalidCiphertext(String)

Invalid ciphertext format or encoding

EncodingError(String)

Encoding/decoding error (base64, hex, etc.)

RandomError(String)

Random number generation failed

SerializationError(String)

Serialization/deserialization error

FeatureNotEnabled(String)

Feature not enabled (requires feature flag)

Internal(String)

Internal error (should not happen in normal operation)

Implementations

impl CrabError

pub fn invalid_input(msg: impl Into<String>) -> Self

Creates an InvalidInput error with a formatted message.

pub fn crypto_error(msg: impl Into<String>) -> Self

Creates a CryptoError with a formatted message.

pub fn key_error(msg: impl Into<String>) -> Self

Creates a KeyError with a formatted message.

pub fn encoding_error(msg: impl Into<String>) -> Self

Creates an EncodingError with a formatted message.

pub fn random_error(msg: impl Into<String>) -> Self

Creates a RandomError with a formatted message.

Trait Implementations

impl Debug for CrabError

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

Formats the value using the given formatter.

impl Display for CrabError

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

Formats the value using the given formatter.

impl Error for CrabError

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<DecodeError> for CrabError

fn from(e: DecodeError) -> Self

Converts to this type from the input type.

impl From<Error> for CrabError

fn from(_e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for CrabError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for CrabError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for CrabError

fn from(_: SignatureError) -> Self

Converts to this type from the input type.

impl From<Error> for CrabError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<FromHexError> for CrabError

fn from(e: FromHexError) -> Self

Converts to this type from the input type.