openethereum/ethcore/crypto/src/error.rs

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// Copyright 2015-2018 Parity Technologies (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 rcrypto;
use ring;
quick_error! {
#[derive(Debug)]
pub enum Error {
Scrypt(e: ScryptError) {
cause(e)
from()
}
Symm(e: SymmError) {
cause(e)
from()
}
}
}
quick_error! {
#[derive(Debug)]
pub enum ScryptError {
// log(N) < r / 16
InvalidN {
display("Invalid N argument of the scrypt encryption")
}
// p <= (2^31-1 * 32)/(128 * r)
InvalidP {
display("Invalid p argument of the scrypt encryption")
}
}
}
quick_error! {
#[derive(Debug)]
pub enum SymmError wraps PrivSymmErr {
RustCrypto(e: rcrypto::symmetriccipher::SymmetricCipherError) {
display("symmetric crypto error")
from()
}
Ring(e: ring::error::Unspecified) {
display("symmetric crypto error")
cause(e)
from()
}
Offset(x: usize) {
display("offset {} greater than slice length", x)
}
}
}
impl SymmError {
pub(crate) fn offset_error(x: usize) -> SymmError {
SymmError(PrivSymmErr::Offset(x))
}
}
impl From<ring::error::Unspecified> for SymmError {
fn from(e: ring::error::Unspecified) -> SymmError {
SymmError(PrivSymmErr::Ring(e))
}
}
impl From<rcrypto::symmetriccipher::SymmetricCipherError> for SymmError {
fn from(e: rcrypto::symmetriccipher::SymmetricCipherError) -> SymmError {
SymmError(PrivSymmErr::RustCrypto(e))
}
}