openethereum/ethkey/src/error.rs

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// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::fmt;
#[derive(Debug)]
/// Crypto error
pub enum Error {
/// Invalid secret key
InvalidSecret,
/// Invalid public key
InvalidPublic,
/// Invalid address
InvalidAddress,
/// Invalid EC signature
InvalidSignature,
/// Invalid AES message
InvalidMessage,
/// IO Error
Io(::std::io::Error),
/// Custom
Custom(String),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let msg = match *self {
Error::InvalidSecret => "Invalid secret".into(),
Error::InvalidPublic => "Invalid public".into(),
Error::InvalidAddress => "Invalid address".into(),
Error::InvalidSignature => "Invalid EC signature".into(),
Error::InvalidMessage => "Invalid AES message".into(),
Error::Io(ref err) => format!("I/O error: {}", err),
Error::Custom(ref s) => s.clone(),
};
f.write_fmt(format_args!("Crypto error ({})", msg))
}
}
impl From<::secp256k1::Error> for Error {
fn from(e: ::secp256k1::Error) -> Error {
match e {
::secp256k1::Error::InvalidMessage => Error::InvalidMessage,
::secp256k1::Error::InvalidPublicKey => Error::InvalidPublic,
::secp256k1::Error::InvalidSecretKey => Error::InvalidSecret,
_ => Error::InvalidSignature,
}
}
}
impl From<::std::io::Error> for Error {
fn from(err: ::std::io::Error) -> Error {
Error::Io(err)
}
}