Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | 2x 2x 2x 2x 2x 6x 6x 6x 6x 6x 6x 6x 6x 6x 2x 1x 2x | import { HDKey } from '@scure/bip32';
import { bytesToHex } from 'micro-stacks/common';
import { DATA_DERIVATION_PATH, STX_DERIVATION_PATH } from '../constants';
import { isCompressed, isHardened } from '../utils';
import type { Account, Wallet } from '../types';
/**
* Derive an account from a wallet
* @param rootNode
* @param index
* @param salt
*/
export function deriveAccount(rootNode: HDKey, index: number, salt: string): Account {
const childKey = rootNode.derive(STX_DERIVATION_PATH).deriveChild(index);
Iif (!childKey.privateKey) throw Error('no private key');
const identitiesKeychain = rootNode.derive(DATA_DERIVATION_PATH);
const identityKeychain = identitiesKeychain.deriveChild(isHardened(index));
Iif (!identityKeychain.privateKey) throw new Error('Must have private key to derive identities');
const dataPrivateKey = bytesToHex(identityKeychain.privateKey);
const appsKey = identityKeychain.deriveChild(isHardened(0)).privateExtendedKey;
const stxPrivateKey = `${bytesToHex(childKey.privateKey)}${
isCompressed(childKey.privateKey) ? '01' : ''
}`;
return {
stxPrivateKey,
dataPrivateKey,
appsKey,
salt,
index,
};
}
export function deriveNextAccountFromWallet(wallet: Wallet): Account {
return deriveAccount(
HDKey.fromExtendedKey(wallet.rootKey),
// this function generates the next account for the wallet
wallet.accounts.length,
wallet.salt
);
}
export function deriveManyAccountsForWallet(
wallet: Wallet,
count: number,
startingIndex?: number
): Account[] {
const accounts: Account[] = [];
const indexes = [...Array(count).keys()];
for (const _index of indexes) {
const offset = startingIndex
? startingIndex
: wallet.accounts.length > 0
? wallet.accounts.length - 1
: 0;
const index = offset + _index;
const match = wallet.accounts[index];
Iif (!match)
accounts.push(deriveAccount(HDKey.fromExtendedKey(wallet.rootKey), index, wallet.salt));
}
return accounts;
}
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