avalanche_types/key/secp256k1/
mnemonic.rs

1use crate::errors::{Error, Result};
2use bip32::{DerivationPath, Language, Mnemonic, XPrv};
3use rand_core::OsRng;
4
5/// ref. <https://github.com/ava-labs/avax-js-cli-tools/blob/3e3f714e4227aca83dc3978fcb6a4fd698e09065/address_gen.js>
6pub const AVAX_ACCOUNT_DERIV_PATH: &str = "m/44'/9000'/0'";
7pub const AVAX_ACCOUNT_DERIV_PATH_0: &str = "m/44'/9000'/0'/0/0";
8
9/// ref. <https://github.com/ava-labs/avalanche-wallet/blob/v0.3.8/src/js/wallets/MnemonicWallet.ts>
10pub const AVAX_ACCOUNT_EXT_PUB_KEY_DERIV_PATH: &str = "m/44'/9000'/0'";
11pub const ETH_ACCOUNT_EXT_PUB_KEY_DERIV_PATH: &str = "m/44'/60'/0'/0/0";
12
13/// Only supports "English" for now.
14/// ref. <https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki>
15/// ref. <https://github.com/rust-bitcoin/rust-bitcoin/blob/master/src/util/bip32.rs>
16/// ref. <https://github.com/bitcoin/bips/blob/master/bip-0039/bip-0039-wordlists.md>
17/// ref. <https://iancoleman.io/bip39/>
18pub fn gen_24() -> String {
19    let m = Mnemonic::random(OsRng, Language::English);
20    let s = m.phrase();
21    assert_eq!(s.split(' ').count(), 24);
22    String::from(s)
23}
24
25impl crate::key::secp256k1::private_key::Key {
26    /// Loads the private key from the mnemonic phrase.
27    pub fn from_mnemonic_phrase<S>(phrase: S, derive_path: S) -> Result<Self>
28    where
29        S: AsRef<str>,
30    {
31        let deriv: DerivationPath = derive_path.as_ref().parse().map_err(|e| Error::Other {
32            message: format!("failed to parse derive path ({})", e),
33            retryable: false,
34        })?;
35
36        let mnemonic = Mnemonic::new(phrase, Language::English).map_err(|e| Error::Other {
37            message: format!("failed to read mnemonic phrase ({})", e),
38            retryable: false,
39        })?;
40        let seed = mnemonic.to_seed("password");
41
42        // ref. https://github.com/ava-labs/avalanche-wallet/blob/v0.3.8/src/js/wallets/MnemonicWallet.ts
43        let child_xprv = XPrv::derive_from_path(&seed, &deriv).map_err(|e| Error::Other {
44            message: format!("failed to derive AVAX account path ({})", e),
45            retryable: false,
46        })?;
47
48        let pk = child_xprv.private_key().to_bytes();
49        Self::from_bytes(&pk)
50    }
51}
avalanche_types/key/secp256k1/mnemonic.rs

avalanche_types/key/secp256k1/
mnemonic.rs
