31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
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/*
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This file is part of GNU Taler
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(C) 2021 Taler Systems S.A.
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GNU Taler is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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import { setPRNG } from "./nacl-fast.js";
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import cr from "crypto";
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export function initNodePrng() {
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// Initialize PRNG if environment provides CSPRNG.
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// If not, methods calling randombytes will throw.
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if (cr && cr.randomBytes) {
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setPRNG(function (x: Uint8Array, n: number) {
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const v = cr.randomBytes(n);
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for (let i = 0; i < n; i++) x[i] = v[i];
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for (let i = 0; i < v.length; i++) v[i] = 0;
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});
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}
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}
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