30 lines
1,008 B
JavaScript
30 lines
1,008 B
JavaScript
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// Key tree for the Sia wallet: index i -> ed25519 key via walletd's
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// KeyFromSeed(root, i), address = standard unlock hash of the public key.
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// Private keys stay inside this module; sign() is the only way out.
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module.exports = function makeKeys({ sia }) {
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class WalletKeys {
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constructor(root32) {
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this._root = Uint8Array.from(root32);
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this._cache = new Map();
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}
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entry(index) {
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let e = this._cache.get(index);
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if (!e) {
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const k = sia.keyFromSeed(this._root, index);
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e = { index, pub: k.pub, address32: k.address32, address: k.address, _priv: k.priv };
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this._cache.set(index, e);
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}
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return e;
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}
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sign(entry, msg) { return sia.sign(entry._priv, msg); }
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// Revealed only on explicit user action in Settings.
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get seedHex() { return sia.toHex(this._root); }
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wipe() {
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for (const e of this._cache.values()) e._priv.fill(0);
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this._cache.clear();
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this._root.fill(0);
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}
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}
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return { WalletKeys };
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};
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