48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var bytes_1 = require("@ethersproject/bytes");
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var logger_1 = require("@ethersproject/logger");
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var _version_1 = require("./_version");
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var logger = new logger_1.Logger(_version_1.version);
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var shuffle_1 = require("./shuffle");
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exports.shuffled = shuffle_1.shuffled;
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var anyGlobal = null;
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try {
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anyGlobal = window;
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if (anyGlobal == null) {
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throw new Error("try next");
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}
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}
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catch (error) {
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try {
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anyGlobal = global;
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if (anyGlobal == null) {
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throw new Error("try next");
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}
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}
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catch (error) {
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anyGlobal = {};
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}
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}
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var crypto = anyGlobal.crypto || anyGlobal.msCrypto;
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if (!crypto || !crypto.getRandomValues) {
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logger.warn("WARNING: Missing strong random number source");
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crypto = {
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getRandomValues: function (buffer) {
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return logger.throwError("no secure random source avaialble", logger_1.Logger.errors.UNSUPPORTED_OPERATION, {
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operation: "crypto.getRandomValues"
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});
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}
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};
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}
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function randomBytes(length) {
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if (length <= 0 || length > 1024 || (length % 1)) {
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logger.throwArgumentError("invalid length", "length", length);
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}
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var result = new Uint8Array(length);
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crypto.getRandomValues(result);
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return bytes_1.arrayify(result);
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}
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exports.randomBytes = randomBytes;
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;
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