cose-rust 0.1.7

COSE Rust implementation
Documentation 
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//! Errors returned by the module, including
//! [rust-openssl](https://docs.rs/openssl/0.10.35/openssl/index.html) and
//! [cbor-codec](https://twittner.gitlab.io/cbor-codec/cbor/) errors.
use cbor::decoder::DecodeError;
use cbor::encoder::EncodeError;
#[cfg(feature = "json")]
use hex::FromHexError;
use openssl::aes;
use openssl::error;
#[cfg(feature = "json")]
use serde_json::Error;
use std::io;

/// Errors that don't return anything.
pub type CoseResult = Result<(), CoseError>;
/// Results that return something.
pub type CoseResultWithRet<A> = Result<A, CoseError>;

/// Errors returned.
#[derive(Debug)]
pub enum CoseError {
    InvalidAlg(),
    InvalidCRV(),
    InvalidD(),
    InvalidY(),
    InvalidX(),
    InvalidKTY(),
    InvalidTag(),
    InvalidKeyOp(),
    InvalidSignature(),
    InvalidCounterSignature(),
    InvalidMAC(),
    InvalidKeyChain(),
    MissingKTY(),
    MissingCRV(),
    MissingAlg(),
    MissingKID(),
    MissingIV(),
    MissingPartialIV(),
    MissingSalt(),
    MissingStaticKID(),
    MissingPartyUID(),
    MissingPartyUNonce(),
    MissingPartyUOther(),
    MissingPartyVID(),
    MissingPartyVNonce(),
    MissingPartyVOther(),
    MissingSignature(),
    MissingPayload(),
    MissingTag(),
    MissingX(),
    MissingY(),
    MissingD(),
    MissingK(),
    MissingKey(),
    MissingBaseIV(),
    MissingSigner(),
    MissingRecipient(),
    MissingContentType(),
    MissingCiphertext(),
    MissingX5Bag(),
    MissingX5Chain(),
    MissingX5T(),
    MissingX5U(),
    MissingX5ChainSender(),
    MissingX5TSender(),
    MissingX5USender(),
    MissingN(),
    MissingE(),
    MissingRsaD(),
    MissingP(),
    MissingQ(),
    MissingDP(),
    MissingDQ(),
    MissingQINV(),
    MissingOther(),
    MissingRI(),
    MissingDI(),
    MissingTI(),
    InvalidCoseStructure(),
    DuplicateLabel(i32),
    PartyUNonceOrSaltRequired(),
    InvalidLabel(i32),
    AlgsDontMatch(),
    KeyOpNotSupported(),
    InvalidMethodForContext(),
    AlgOnlySupportsOneRecipient(),
    InvalidContext(),
    NotImplemented(String),
    CryptoStackError(error::ErrorStack),
    CryptoError(error::Error),
    CryptoKeyError(aes::KeyError),
    IoError(io::Error),
    EncodeError(EncodeError),
    DecodeError(DecodeError),
    #[cfg(feature = "json")]
    HexError(FromHexError),
    #[cfg(feature = "json")]
    SerdeJsonError(Error),
}
impl From<error::ErrorStack> for CoseError {
    fn from(err: error::ErrorStack) -> CoseError {
        CoseError::CryptoStackError(err)
    }
}
impl From<error::Error> for CoseError {
    fn from(err: error::Error) -> CoseError {
        CoseError::CryptoError(err)
    }
}
impl From<aes::KeyError> for CoseError {
    fn from(err: aes::KeyError) -> CoseError {
        CoseError::CryptoKeyError(err)
    }
}
impl From<io::Error> for CoseError {
    fn from(err: io::Error) -> CoseError {
        CoseError::IoError(err)
    }
}

impl From<EncodeError> for CoseError {
    fn from(err: EncodeError) -> CoseError {
        CoseError::EncodeError(err)
    }
}
impl From<DecodeError> for CoseError {
    fn from(err: DecodeError) -> CoseError {
        CoseError::DecodeError(err)
    }
}
#[cfg(feature = "json")]
impl From<FromHexError> for CoseError {
    fn from(err: FromHexError) -> CoseError {
        CoseError::HexError(err)
    }
}
#[cfg(feature = "json")]
impl From<Error> for CoseError {
    fn from(err: Error) -> CoseError {
        CoseError::SerdeJsonError(err)
    }
}