"use strict"; import { arrayify } from "@ethersproject/bytes"; import { Logger } from "@ethersproject/logger"; import { version } from "./_version"; const logger = new Logger(version); export { shuffled } from "./shuffle"; let crypto = global.crypto || global.msCrypto; if (!crypto || !crypto.getRandomValues) { logger.warn("WARNING: Missing strong random number source"); crypto = { getRandomValues: function (buffer) { return logger.throwError("no secure random source avaialble", Logger.errors.UNSUPPORTED_OPERATION, { operation: "crypto.getRandomValues" }); } }; } export function randomBytes(length) { if (length <= 0 || length > 1024 || parseInt(String(length)) != length) { logger.throwArgumentError("invalid length", "length", length); } const result = new Uint8Array(length); crypto.getRandomValues(result); return arrayify(result); } ;