Resurrect BIP32 support

This commit is contained in:
Andrew Poelstra 2016-06-24 19:15:57 +00:00
parent 698a23e32d
commit 14af175a11
5 changed files with 533 additions and 5 deletions

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@ -1,7 +1,7 @@
[package] [package]
name = "bitcoin" name = "bitcoin"
version = "0.7.2" version = "0.7.3"
authors = ["Andrew Poelstra <apoelstra@wpsoftware.net>"] authors = ["Andrew Poelstra <apoelstra@wpsoftware.net>"]
license = "CC0-1.0" license = "CC0-1.0"
homepage = "https://github.com/apoelstra/rust-bitcoin/" homepage = "https://github.com/apoelstra/rust-bitcoin/"

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@ -196,10 +196,10 @@ macro_rules! impl_array_newtype_encodable {
unsafe { unsafe {
use std::mem; use std::mem;
let mut ret: [$ty; $len] = mem::uninitialized(); let mut ret: [$ty; $len] = mem::uninitialized();
for item in ret.mut_iter() { for item in ret.iter_mut() {
*item = match try!(v.visit()) { *item = match try!(v.visit()) {
Some(c) => c, Some(c) => c,
None => return Err(::serde::de::Error::end_of_stream_error()) None => return Err(::serde::de::Error::end_of_stream())
}; };
} }
try!(v.end()); try!(v.end());

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@ -19,11 +19,10 @@
#[macro_export] #[macro_export]
macro_rules! serde_round_trip ( macro_rules! serde_round_trip (
($var:expr) => ({ ($var:expr) => ({
use serde::{Serialize, Deserialize};
use strason; use strason;
let start = $var; let start = $var;
let encoded = strason::from_serialize(start).unwrap(); let encoded = strason::from_serialize(&start).unwrap();
let decoded = encoded.into_deserialize().unwrap(); let decoded = encoded.into_deserialize().unwrap();
assert_eq!(start, decoded); assert_eq!(start, decoded);
}) })

528
src/util/bip32.rs Normal file
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@ -0,0 +1,528 @@
// Rust Bitcoin Library
// Written in 2014 by
// Andrew Poelstra <apoelstra@wpsoftware.net>
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to
// the public domain worldwide. This software is distributed without
// any warranty.
//
// You should have received a copy of the CC0 Public Domain Dedication
// along with this software.
// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
//
//! # BIP32 Implementation
//!
//! Implementation of BIP32 hierarchical deterministic wallets, as defined
//! at https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
use std::default::Default;
use std::io::Cursor;
use serde::{Serialize, Deserialize, Serializer, Deserializer};
use byteorder::{BigEndian, ByteOrder, ReadBytesExt, WriteBytesExt};
use crypto::digest::Digest;
use crypto::hmac::Hmac;
use crypto::mac::Mac;
use crypto::ripemd160::Ripemd160;
use crypto::sha2::Sha256;
use crypto::sha2::Sha512;
use secp256k1::key::{PublicKey, SecretKey};
use secp256k1::{self, Secp256k1};
use network::constants::Network;
use util::base58;
use util::base58::{FromBase58, ToBase58};
/// A chain code
pub struct ChainCode([u8; 32]);
impl_array_newtype!(ChainCode, u8, 32);
impl_array_newtype_show!(ChainCode);
impl_array_newtype_encodable!(ChainCode, u8, 32);
/// A fingerprint
pub struct Fingerprint([u8; 4]);
impl_array_newtype!(Fingerprint, u8, 4);
impl_array_newtype_show!(Fingerprint);
impl_array_newtype_encodable!(Fingerprint, u8, 4);
impl Default for Fingerprint {
fn default() -> Fingerprint { Fingerprint([0, 0, 0, 0]) }
}
/// Extended private key
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub struct ExtendedPrivKey {
/// The network this key is to be used on
pub network: Network,
/// How many derivations this key is from the master (which is 0)
pub depth: u8,
/// Fingerprint of the parent key (0 for master)
pub parent_fingerprint: Fingerprint,
/// Child number of the key used to derive from parent (0 for master)
pub child_number: ChildNumber,
/// Secret key
pub secret_key: SecretKey,
/// Chain code
pub chain_code: ChainCode
}
/// Extended public key
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub struct ExtendedPubKey {
/// The network this key is to be used on
pub network: Network,
/// How many derivations this key is from the master (which is 0)
pub depth: u8,
/// Fingerprint of the parent key
pub parent_fingerprint: Fingerprint,
/// Child number of the key used to derive from parent (0 for master)
pub child_number: ChildNumber,
/// Public key
pub public_key: PublicKey,
/// Chain code
pub chain_code: ChainCode
}
/// A child number for a derived key
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum ChildNumber {
/// Hardened key index, within [0, 2^31 - 1]
Hardened(u32),
/// Non-hardened key, within [0, 2^31 - 1]
Normal(u32),
}
impl Serialize for ChildNumber {
fn serialize<S>(&self, s: &mut S) -> Result<(), S::Error>
where S: Serializer {
match *self {
ChildNumber::Hardened(n) => (n + (1 << 31)).serialize(s),
ChildNumber::Normal(n) => n.serialize(s)
}
}
}
impl Deserialize for ChildNumber {
fn deserialize<D>(d: &mut D) -> Result<ChildNumber, D::Error>
where D: Deserializer {
let n: u32 = try!(Deserialize::deserialize(d));
if n < (1 << 31) {
Ok(ChildNumber::Normal(n))
} else {
Ok(ChildNumber::Hardened(n - (1 << 31)))
}
}
}
/// A BIP32 error
#[derive(Clone, PartialEq, Eq, Debug)]
pub enum Error {
/// A pk->pk derivation was attempted on a hardened key
CannotDeriveFromHardenedKey,
/// A secp256k1 error occured
Ecdsa(secp256k1::Error),
/// A child number was provided that was out of range
InvalidChildNumber(ChildNumber),
/// Error creating a master seed --- for application use
RngError(String)
}
impl ExtendedPrivKey {
/// Construct a new master key from a seed value
pub fn new_master(secp: &Secp256k1, network: Network, seed: &[u8]) -> Result<ExtendedPrivKey, Error> {
let mut result = [0; 64];
let mut hmac = Hmac::new(Sha512::new(), b"Bitcoin seed");
hmac.input(seed);
hmac.raw_result(&mut result);
Ok(ExtendedPrivKey {
network: network,
depth: 0,
parent_fingerprint: Default::default(),
child_number: ChildNumber::Normal(0),
secret_key: try!(SecretKey::from_slice(secp, &result[..32]).map_err(Error::Ecdsa)),
chain_code: ChainCode::from(&result[32..])
})
}
/// Creates a privkey from a path
pub fn from_path(secp: &Secp256k1, master: &ExtendedPrivKey, path: &[ChildNumber])
-> Result<ExtendedPrivKey, Error> {
let mut sk = *master;
for &num in path.iter() {
sk = try!(sk.ckd_priv(secp, num));
}
Ok(sk)
}
/// Private->Private child key derivation
pub fn ckd_priv(&self, secp: &Secp256k1, i: ChildNumber) -> Result<ExtendedPrivKey, Error> {
let mut result = [0; 64];
let mut hmac = Hmac::new(Sha512::new(), &self.chain_code[..]);
let mut be_n = [0; 4];
match i {
ChildNumber::Normal(n) => {
if n >= (1 << 31) { return Err(Error::InvalidChildNumber(i)) }
// Non-hardened key: compute public data and use that
hmac.input(&PublicKey::from_secret_key(secp, &self.secret_key).unwrap().serialize_vec(&secp, true)[..]);
BigEndian::write_u32(&mut be_n, n);
}
ChildNumber::Hardened(n) => {
if n >= (1 << 31) { return Err(Error::InvalidChildNumber(i)) }
// Hardened key: use only secret data to prevent public derivation
hmac.input(&[0u8]);
hmac.input(&self.secret_key[..]);
BigEndian::write_u32(&mut be_n, n + (1 << 31));
}
}
hmac.input(&be_n);
hmac.raw_result(&mut result);
let mut sk = try!(SecretKey::from_slice(secp, &result[..32]).map_err(Error::Ecdsa));
try!(sk.add_assign(secp, &self.secret_key).map_err(Error::Ecdsa));
Ok(ExtendedPrivKey {
network: self.network,
depth: self.depth + 1,
parent_fingerprint: self.fingerprint(secp),
child_number: i,
secret_key: sk,
chain_code: ChainCode::from(&result[32..])
})
}
/// Returns the HASH160 of the chaincode
pub fn identifier(&self, secp: &Secp256k1) -> [u8; 20] {
let mut sha2_res = [0; 32];
let mut ripemd_res = [0; 20];
// Compute extended public key
let pk = ExtendedPubKey::from_private(secp, self);
// Do SHA256 of just the ECDSA pubkey
let mut sha2 = Sha256::new();
sha2.input(&pk.public_key.serialize_vec(secp, true)[..]);
sha2.result(&mut sha2_res);
// do RIPEMD160
let mut ripemd = Ripemd160::new();
ripemd.input(&sha2_res);
ripemd.result(&mut ripemd_res);
// Return
ripemd_res
}
/// Returns the first four bytes of the identifier
pub fn fingerprint(&self, secp: &Secp256k1) -> Fingerprint {
Fingerprint::from(&self.identifier(secp)[0..4])
}
}
impl ExtendedPubKey {
/// Derives a public key from a private key
pub fn from_private(secp: &Secp256k1, sk: &ExtendedPrivKey) -> ExtendedPubKey {
ExtendedPubKey {
network: sk.network,
depth: sk.depth,
parent_fingerprint: sk.parent_fingerprint,
child_number: sk.child_number,
public_key: PublicKey::from_secret_key(secp, &sk.secret_key).unwrap(),
chain_code: sk.chain_code
}
}
/// Public->Public child key derivation
pub fn ckd_pub(&self, secp: &Secp256k1, i: ChildNumber) -> Result<ExtendedPubKey, Error> {
match i {
ChildNumber::Hardened(n) => {
if n >= (1 << 31) {
Err(Error::InvalidChildNumber(i))
} else {
Err(Error::CannotDeriveFromHardenedKey)
}
}
ChildNumber::Normal(n) => {
let mut hmac = Hmac::new(Sha512::new(), &self.chain_code[..]);
hmac.input(&self.public_key.serialize_vec(secp, true)[..]);
let mut be_n = [0; 4];
BigEndian::write_u32(&mut be_n, n);
hmac.input(&be_n);
let mut result = [0; 64];
hmac.raw_result(&mut result);
let sk = try!(SecretKey::from_slice(secp, &result[..32]).map_err(Error::Ecdsa));
let mut pk = self.public_key.clone();
try!(pk.add_exp_assign(secp, &sk).map_err(Error::Ecdsa));
Ok(ExtendedPubKey {
network: self.network,
depth: self.depth + 1,
parent_fingerprint: self.fingerprint(),
child_number: i,
public_key: pk,
chain_code: ChainCode::from(&result[32..])
})
}
}
}
/// Returns the HASH160 of the chaincode
pub fn identifier(&self) -> [u8; 20] {
let s = Secp256k1::with_caps(secp256k1::ContextFlag::None);
let mut sha2_res = [0; 32];
let mut ripemd_res = [0; 20];
// Do SHA256 of just the ECDSA pubkey
let mut sha2 = Sha256::new();
sha2.input(&self.public_key.serialize_vec(&s, true)[..]);
sha2.result(&mut sha2_res);
// do RIPEMD160
let mut ripemd = Ripemd160::new();
ripemd.input(&sha2_res);
ripemd.result(&mut ripemd_res);
// Return
ripemd_res
}
/// Returns the first four bytes of the identifier
pub fn fingerprint(&self) -> Fingerprint {
Fingerprint::from(&self.identifier()[0..4])
}
}
impl ToBase58 for ExtendedPrivKey {
fn base58_layout(&self) -> Vec<u8> {
let mut ret = Vec::with_capacity(78);
ret.extend(match self.network {
Network::Bitcoin => [0x04, 0x88, 0xAD, 0xE4],
Network::Testnet => [0x04, 0x35, 0x83, 0x94]
}.iter().cloned());
ret.push(self.depth as u8);
ret.extend(self.parent_fingerprint[..].iter().cloned());
match self.child_number {
ChildNumber::Hardened(n) => {
ret.write_u32::<BigEndian>(n + (1 << 31)).unwrap();
}
ChildNumber::Normal(n) => {
ret.write_u32::<BigEndian>(n).unwrap();
}
}
ret.extend(self.chain_code[..].iter().cloned());
ret.push(0);
ret.extend(self.secret_key[..].iter().cloned());
ret
}
}
impl FromBase58 for ExtendedPrivKey {
fn from_base58_layout(data: Vec<u8>) -> Result<ExtendedPrivKey, base58::Error> {
let s = Secp256k1::with_caps(secp256k1::ContextFlag::None);
if data.len() != 78 {
return Err(base58::Error::InvalidLength(data.len()));
}
let cn_int = Cursor::new(&data[9..13]).read_u32::<BigEndian>().unwrap();
let child_number = if cn_int < (1 << 31) { ChildNumber::Normal(cn_int) }
else { ChildNumber::Hardened(cn_int - (1 << 31)) };
Ok(ExtendedPrivKey {
network: if &data[0..4] == [0x04u8, 0x88, 0xAD, 0xE4] {
Network::Bitcoin
} else if &data[0..4] == [0x04u8, 0x35, 0x83, 0x94] {
Network::Testnet
} else {
return Err(base58::Error::InvalidVersion((&data[0..4]).to_vec()));
},
depth: data[4],
parent_fingerprint: Fingerprint::from(&data[5..9]),
child_number: child_number,
chain_code: ChainCode::from(&data[13..45]),
secret_key: try!(SecretKey::from_slice(&s,
&data[46..78]).map_err(|e|
base58::Error::Other(e.to_string())))
})
}
}
impl ToBase58 for ExtendedPubKey {
fn base58_layout(&self) -> Vec<u8> {
let s = Secp256k1::with_caps(secp256k1::ContextFlag::None);
let mut ret = Vec::with_capacity(78);
ret.extend(match self.network {
Network::Bitcoin => [0x04u8, 0x88, 0xB2, 0x1E],
Network::Testnet => [0x04u8, 0x35, 0x87, 0xCF]
}.iter().cloned());
ret.push(self.depth as u8);
ret.extend(self.parent_fingerprint[..].iter().cloned());
let mut be_n = [0; 4];
match self.child_number {
ChildNumber::Hardened(n) => {
BigEndian::write_u32(&mut be_n, n + (1 << 31));
}
ChildNumber::Normal(n) => {
BigEndian::write_u32(&mut be_n, n);
}
}
ret.extend(be_n.iter().cloned());
ret.extend(self.chain_code[..].iter().cloned());
ret.extend(self.public_key.serialize_vec(&s, true)[..].iter().cloned());
ret
}
}
impl FromBase58 for ExtendedPubKey {
fn from_base58_layout(data: Vec<u8>) -> Result<ExtendedPubKey, base58::Error> {
let s = Secp256k1::with_caps(secp256k1::ContextFlag::None);
if data.len() != 78 {
return Err(base58::Error::InvalidLength(data.len()));
}
let cn_int = Cursor::new(&data[9..13]).read_u32::<BigEndian>().unwrap();
let child_number = if cn_int < (1 << 31) { ChildNumber::Normal(cn_int) }
else { ChildNumber::Hardened(cn_int - (1 << 31)) };
Ok(ExtendedPubKey {
network: if &data[0..4] == [0x04u8, 0x88, 0xB2, 0x1E] {
Network::Bitcoin
} else if &data[0..4] == [0x04u8, 0x35, 0x87, 0xCF] {
Network::Testnet
} else {
return Err(base58::Error::InvalidVersion((&data[0..4]).to_vec()));
},
depth: data[4],
parent_fingerprint: Fingerprint::from(&data[5..9]),
child_number: child_number,
chain_code: ChainCode::from(&data[13..45]),
public_key: try!(PublicKey::from_slice(&s,
&data[45..78]).map_err(|e|
base58::Error::Other(e.to_string())))
})
}
}
#[cfg(test)]
mod tests {
use secp256k1::Secp256k1;
use serialize::hex::FromHex;
use network::constants::Network::{self, Bitcoin};
use util::base58::{FromBase58, ToBase58};
use super::{ChildNumber, ExtendedPrivKey, ExtendedPubKey};
use super::ChildNumber::{Hardened, Normal};
fn test_path(secp: &Secp256k1,
network: Network,
seed: &[u8],
path: &[ChildNumber],
expected_sk: &str,
expected_pk: &str) {
let mut sk = ExtendedPrivKey::new_master(secp, network, seed).unwrap();
let mut pk = ExtendedPubKey::from_private(secp, &sk);
// Derive keys, checking hardened and non-hardened derivation
for &num in path.iter() {
sk = sk.ckd_priv(secp, num).unwrap();
match num {
Normal(_) => {
let pk2 = pk.ckd_pub(secp, num).unwrap();
pk = ExtendedPubKey::from_private(secp, &sk);
assert_eq!(pk, pk2);
}
Hardened(_) => {
pk = ExtendedPubKey::from_private(secp, &sk);
}
}
}
// Check result against expected base58
assert_eq!(&sk.to_base58check()[..], expected_sk);
assert_eq!(&pk.to_base58check()[..], expected_pk);
// Check decoded base58 against result
let decoded_sk = FromBase58::from_base58check(expected_sk);
let decoded_pk = FromBase58::from_base58check(expected_pk);
assert_eq!(Ok(sk), decoded_sk);
assert_eq!(Ok(pk), decoded_pk);
}
#[test]
fn test_vector_1() {
let secp = Secp256k1::new();
let seed = "000102030405060708090a0b0c0d0e0f".from_hex().unwrap();
// m
test_path(&secp, Bitcoin, &seed, &[],
"xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi",
"xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8");
// m/0h
test_path(&secp, Bitcoin, &seed, &[Hardened(0)],
"xprv9uHRZZhk6KAJC1avXpDAp4MDc3sQKNxDiPvvkX8Br5ngLNv1TxvUxt4cV1rGL5hj6KCesnDYUhd7oWgT11eZG7XnxHrnYeSvkzY7d2bhkJ7",
"xpub68Gmy5EdvgibQVfPdqkBBCHxA5htiqg55crXYuXoQRKfDBFA1WEjWgP6LHhwBZeNK1VTsfTFUHCdrfp1bgwQ9xv5ski8PX9rL2dZXvgGDnw");
// m/0h/1
test_path(&secp, Bitcoin, &seed, &[Hardened(0), Normal(1)],
"xprv9wTYmMFdV23N2TdNG573QoEsfRrWKQgWeibmLntzniatZvR9BmLnvSxqu53Kw1UmYPxLgboyZQaXwTCg8MSY3H2EU4pWcQDnRnrVA1xe8fs",
"xpub6ASuArnXKPbfEwhqN6e3mwBcDTgzisQN1wXN9BJcM47sSikHjJf3UFHKkNAWbWMiGj7Wf5uMash7SyYq527Hqck2AxYysAA7xmALppuCkwQ");
// m/0h/1/2h
test_path(&secp, Bitcoin, &seed, &[Hardened(0), Normal(1), Hardened(2)],
"xprv9z4pot5VBttmtdRTWfWQmoH1taj2axGVzFqSb8C9xaxKymcFzXBDptWmT7FwuEzG3ryjH4ktypQSAewRiNMjANTtpgP4mLTj34bhnZX7UiM",
"xpub6D4BDPcP2GT577Vvch3R8wDkScZWzQzMMUm3PWbmWvVJrZwQY4VUNgqFJPMM3No2dFDFGTsxxpG5uJh7n7epu4trkrX7x7DogT5Uv6fcLW5");
// m/0h/1/2h/2
test_path(&secp, Bitcoin, &seed, &[Hardened(0), Normal(1), Hardened(2), Normal(2)],
"xprvA2JDeKCSNNZky6uBCviVfJSKyQ1mDYahRjijr5idH2WwLsEd4Hsb2Tyh8RfQMuPh7f7RtyzTtdrbdqqsunu5Mm3wDvUAKRHSC34sJ7in334",
"xpub6FHa3pjLCk84BayeJxFW2SP4XRrFd1JYnxeLeU8EqN3vDfZmbqBqaGJAyiLjTAwm6ZLRQUMv1ZACTj37sR62cfN7fe5JnJ7dh8zL4fiyLHV");
// m/0h/1/2h/2/1000000000
test_path(&secp, Bitcoin, &seed, &[Hardened(0), Normal(1), Hardened(2), Normal(2), Normal(1000000000)],
"xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76",
"xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy");
}
#[test]
fn test_vector_2() {
let secp = Secp256k1::new();
let seed = "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542".from_hex().unwrap();
// m
test_path(&secp, Bitcoin, &seed, &[],
"xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U",
"xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB");
// m/0
test_path(&secp, Bitcoin, &seed, &[Normal(0)],
"xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt",
"xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH");
// m/0/2147483647h
test_path(&secp, Bitcoin, &seed, &[Normal(0), Hardened(2147483647)],
"xprv9wSp6B7kry3Vj9m1zSnLvN3xH8RdsPP1Mh7fAaR7aRLcQMKTR2vidYEeEg2mUCTAwCd6vnxVrcjfy2kRgVsFawNzmjuHc2YmYRmagcEPdU9",
"xpub6ASAVgeehLbnwdqV6UKMHVzgqAG8Gr6riv3Fxxpj8ksbH9ebxaEyBLZ85ySDhKiLDBrQSARLq1uNRts8RuJiHjaDMBU4Zn9h8LZNnBC5y4a");
// m/0/2147483647h/1
test_path(&secp, Bitcoin, &seed, &[Normal(0), Hardened(2147483647), Normal(1)],
"xprv9zFnWC6h2cLgpmSA46vutJzBcfJ8yaJGg8cX1e5StJh45BBciYTRXSd25UEPVuesF9yog62tGAQtHjXajPPdbRCHuWS6T8XA2ECKADdw4Ef",
"xpub6DF8uhdarytz3FWdA8TvFSvvAh8dP3283MY7p2V4SeE2wyWmG5mg5EwVvmdMVCQcoNJxGoWaU9DCWh89LojfZ537wTfunKau47EL2dhHKon");
// m/0/2147483647h/1/2147483646h
test_path(&secp, Bitcoin, &seed, &[Normal(0), Hardened(2147483647), Normal(1), Hardened(2147483646)],
"xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc",
"xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL");
// m/0/2147483647h/1/2147483646h/2
test_path(&secp, Bitcoin, &seed, &[Normal(0), Hardened(2147483647), Normal(1), Hardened(2147483646), Normal(2)],
"xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j",
"xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt");
}
#[test]
pub fn encode_decode_childnumber() {
serde_round_trip!(Normal(0));
serde_round_trip!(Normal(1));
serde_round_trip!(Normal((1 << 31) - 1));
serde_round_trip!(Hardened(0));
serde_round_trip!(Hardened(1));
serde_round_trip!(Hardened((1 << 31) - 1));
}
}

View File

@ -18,6 +18,7 @@
pub mod address; pub mod address;
pub mod base58; pub mod base58;
pub mod bip32;
pub mod contracthash; pub mod contracthash;
pub mod decimal; pub mod decimal;
pub mod hash; pub mod hash;