lib.rs

//  Copyright (C) 2018  The Duniter Project Developers.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

//! Provide wrappers around public keys, private keys and signatures.
//!
//! - Keys can be converted to/from Base58 string format.
//! - Signatures can be converted to/from Base64 string format.
//!
//! # Usage
//!
//! ```
//! use duniter_keys::{Signature, PublicKey, PrivateKey, KeyPair};
//! use duniter_keys::ed25519::KeyPairFromSaltedPasswordGenerator;
//!
//! let generator = KeyPairFromSaltedPasswordGenerator::with_default_parameters();
//!
//! let keypair = generator.generate(
//!     b"password",
//!     b"salt"
//! );
//!
//! let message = "Hello, world!";
//!
//! let signature = keypair.sign(&message.as_bytes());
//!
//! assert!(keypair.pubkey.verify(&message.as_bytes(), &signature));
//! ```
//!
//! # Format
//!
//! - Base58 use the following alphabet :
//! `123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz`
//! - Base64 use the following alphabet :
//! `ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/`
//! with `=` as padding character.

#![deny(missing_docs, missing_debug_implementations, missing_copy_implementations, trivial_casts,
        trivial_numeric_casts, unsafe_code, unstable_features, unused_import_braces,
        unused_qualifications)]

extern crate base58;
extern crate base64;
extern crate crypto;

use std::fmt::Display;
use std::fmt::Debug;

use base58::ToBase58;

pub mod ed25519;

/// Errors enumeration for Base58/64 strings convertion.
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum BaseConvertionError {
    /// Data have invalid key length (found, expected).
    InvalidKeyLendth(usize, usize),
    /// Base58 have an invalid character.
    InvalidCharacter(char, usize),