deriveSalt

Generates a salt from the wallet's root node. The salt is derived by hashing the public key of the identity keychain at path m/888'/0'.

The salt is used when generating app-specific private keys for each account.

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Usage

import { deriveSalt } from '@stacks/wallet-sdk';
import { HDKey } from '@scure/bip32';
import { mnemonicToSeed } from '@scure/bip39';

const seed = await mnemonicToSeed('your 24-word seed phrase ...');
const rootNode = HDKey.fromMasterSeed(seed);

const salt = await deriveSalt(rootNode);
// hex string

Notes

• Returns a hex-encoded SHA-256 hash of the identity keychain's public key.
• The same salt is shared across all accounts in a wallet and is used as an input when deriving app-specific keys.
• This is called internally by deriveWalletKeys.

Reference Link

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Signature

function deriveSalt(rootNode: HDKey): Promise<string>;

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Returns

Promise<string>

A hex-encoded string representing the wallet-level salt.

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Parameters

rootNode (required)

• Type: HDKey (from @scure/bip32)

The root HD key derived from the wallet's seed phrase.