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//! HD wallet(BIP-32) related key derivation utilities.
//!
//! This crate is build upon secp256k1 crate, only provide BIP-32 related features, for signatures
//! see the original [secp256k1 documentation](https://docs.rs/secp256k1).
//!
//! * [`ChainPath`] and [`KeyChain`] used to derivation child keys from string represented path.
//! * [`HDKey`] return value of `key_chain.fetch_key`, `HDKey` represent a derivated key which
//! include a `ExtendedPrivKey` and other derivation info.
//! * [`ExtendedPrivKey`] and [`ExtendedPubKey`] as BIP-32 described it is basic struct in `hdwallet`.
//! * [`KeyIndex`] is a simple enum indicate the index and type of child key(Normal key or Hardened
//! key).
//! * [`Error`] errors.

#[macro_use]
extern crate lazy_static;

mod chain_path;
mod error;
mod key;
mod key_chain;
mod key_index;
mod serialize;

pub use crate::chain_path::{ChainPath, Error as ChainPathError, SubPath};
pub use crate::error::Error;
pub use crate::key::{
    ChildKey, ChildPrivKey, ChildPubKey, ExtendedKey, ExtendedPrivKey, ExtendedPubKey, KeySeed,
};
pub use crate::key_chain::{DefaultKeyChain, HDKey, KeyChain};
pub use crate::key_index::KeyIndex;
pub use crate::serialize::Serialize;
pub use secp256k1;