serverless-spy
Version:
CDK-based library for writing elegant integration tests on AWS serverless architecture and an additional web console to monitor events in real time.
62 lines • 2.25 kB
JavaScript
import { __awaiter, __generator } from "tslib";
var subtleCryptoMethods = [
"decrypt",
"digest",
"encrypt",
"exportKey",
"generateKey",
"importKey",
"sign",
"verify"
];
export function supportsWebCrypto(window) {
if (supportsSecureRandom(window) &&
typeof window.crypto.subtle === "object") {
var subtle = window.crypto.subtle;
return supportsSubtleCrypto(subtle);
}
return false;
}
export function supportsSecureRandom(window) {
if (typeof window === "object" && typeof window.crypto === "object") {
var getRandomValues = window.crypto.getRandomValues;
return typeof getRandomValues === "function";
}
return false;
}
export function supportsSubtleCrypto(subtle) {
return (subtle &&
subtleCryptoMethods.every(function (methodName) { return typeof subtle[methodName] === "function"; }));
}
export function supportsZeroByteGCM(subtle) {
return __awaiter(this, void 0, void 0, function () {
var key, zeroByteAuthTag, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (!supportsSubtleCrypto(subtle))
return [2 /*return*/, false];
_b.label = 1;
case 1:
_b.trys.push([1, 4, , 5]);
return [4 /*yield*/, subtle.generateKey({ name: "AES-GCM", length: 128 }, false, ["encrypt"])];
case 2:
key = _b.sent();
return [4 /*yield*/, subtle.encrypt({
name: "AES-GCM",
iv: new Uint8Array(Array(12)),
additionalData: new Uint8Array(Array(16)),
tagLength: 128
}, key, new Uint8Array(0))];
case 3:
zeroByteAuthTag = _b.sent();
return [2 /*return*/, zeroByteAuthTag.byteLength === 16];
case 4:
_a = _b.sent();
return [2 /*return*/, false];
case 5: return [2 /*return*/];
}
});
});
}
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