150 lines
3.7 KiB
Rust
150 lines
3.7 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use serde::{Serialize, Serializer, Deserialize, Deserializer, Error as SerdeError};
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use serde::de::Visitor;
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use serde_json::{Value, value};
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use super::{Error, H256};
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#[derive(Debug, PartialEq)]
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pub enum KdfSer {
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Pbkdf2,
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Scrypt,
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}
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impl Serialize for KdfSer {
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fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
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where S: Serializer {
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match *self {
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KdfSer::Pbkdf2 => serializer.serialize_str("pbkdf2"),
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KdfSer::Scrypt => serializer.serialize_str("scrypt"),
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}
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}
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}
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impl Deserialize for KdfSer {
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fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
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where D: Deserializer {
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deserializer.deserialize(KdfSerVisitor)
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}
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}
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struct KdfSerVisitor;
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impl Visitor for KdfSerVisitor {
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type Value = KdfSer;
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fn visit_str<E>(&mut self, value: &str) -> Result<Self::Value, E> where E: SerdeError {
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match value {
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"pbkdf2" => Ok(KdfSer::Pbkdf2),
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"scrypt" => Ok(KdfSer::Scrypt),
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_ => Err(SerdeError::custom(Error::UnsupportedKdf))
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}
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}
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fn visit_string<E>(&mut self, value: String) -> Result<Self::Value, E> where E: SerdeError {
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self.visit_str(value.as_ref())
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}
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}
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#[derive(Debug, PartialEq)]
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pub enum Prf {
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HmacSha256,
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}
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impl Serialize for Prf {
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fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
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where S: Serializer {
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match *self {
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Prf::HmacSha256 => serializer.serialize_str("hmac-sha256"),
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}
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}
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}
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impl Deserialize for Prf {
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fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
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where D: Deserializer {
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deserializer.deserialize(PrfVisitor)
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}
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}
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struct PrfVisitor;
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impl Visitor for PrfVisitor {
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type Value = Prf;
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fn visit_str<E>(&mut self, value: &str) -> Result<Self::Value, E> where E: SerdeError {
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match value {
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"hmac-sha256" => Ok(Prf::HmacSha256),
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_ => Err(SerdeError::custom(Error::InvalidPrf)),
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}
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}
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fn visit_string<E>(&mut self, value: String) -> Result<Self::Value, E> where E: SerdeError {
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self.visit_str(value.as_ref())
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}
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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pub struct Pbkdf2 {
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pub c: u32,
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pub dklen: u32,
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pub prf: Prf,
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pub salt: H256,
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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pub struct Scrypt {
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pub dklen: u32,
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pub p: u32,
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pub n: u32,
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pub r: u32,
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pub salt: H256,
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}
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#[derive(Debug, PartialEq)]
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pub enum KdfSerParams {
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Pbkdf2(Pbkdf2),
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Scrypt(Scrypt),
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}
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impl Serialize for KdfSerParams {
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fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
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where S: Serializer {
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match *self {
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KdfSerParams::Pbkdf2(ref params) => params.serialize(serializer),
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KdfSerParams::Scrypt(ref params) => params.serialize(serializer),
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}
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}
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}
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impl Deserialize for KdfSerParams {
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fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
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where D: Deserializer {
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let v = try!(Value::deserialize(deserializer));
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Deserialize::deserialize(&mut value::Deserializer::new(v.clone())).map(KdfSerParams::Pbkdf2)
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.or_else(|_| Deserialize::deserialize(&mut value::Deserializer::new(v)).map(KdfSerParams::Scrypt))
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.map_err(|e| D::Error::custom(format!("{}", e)))
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}
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}
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#[derive(Debug, PartialEq)]
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pub enum Kdf {
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Pbkdf2(Pbkdf2),
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Scrypt(Scrypt),
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}
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