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