49 lines
1.5 KiB
JavaScript
49 lines
1.5 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.randomBytes = void 0;
|
|
var bytes_1 = require("@ethersproject/bytes");
|
|
var logger_1 = require("@ethersproject/logger");
|
|
var _version_1 = require("./_version");
|
|
var logger = new logger_1.Logger(_version_1.version);
|
|
// Debugging line for testing browser lib in node
|
|
//const window = { crypto: { getRandomValues: () => { } } };
|
|
var anyGlobal = null;
|
|
try {
|
|
anyGlobal = window;
|
|
if (anyGlobal == null) {
|
|
throw new Error("try next");
|
|
}
|
|
}
|
|
catch (error) {
|
|
try {
|
|
anyGlobal = global;
|
|
if (anyGlobal == null) {
|
|
throw new Error("try next");
|
|
}
|
|
}
|
|
catch (error) {
|
|
anyGlobal = {};
|
|
}
|
|
}
|
|
var crypto = anyGlobal.crypto || anyGlobal.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_1.Logger.errors.UNSUPPORTED_OPERATION, {
|
|
operation: "crypto.getRandomValues"
|
|
});
|
|
}
|
|
};
|
|
}
|
|
function randomBytes(length) {
|
|
if (length <= 0 || length > 1024 || (length % 1) || length != length) {
|
|
logger.throwArgumentError("invalid length", "length", length);
|
|
}
|
|
var result = new Uint8Array(length);
|
|
crypto.getRandomValues(result);
|
|
return (0, bytes_1.arrayify)(result);
|
|
}
|
|
exports.randomBytes = randomBytes;
|
|
;
|
|
//# sourceMappingURL=browser-random.js.map
|