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Update Web Worker selection logic for AEAD

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This commit is contained in:
Daniel Huigens 2018-04-11 19:47:32 +02:00
parent e061df113c
commit d7efead337
1 changed files with 10 additions and 3 deletions
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13
src/openpgp.js
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@ -23,6 +23,7 @@
* @requires cleartext
* @requires key
* @requires config
* @requires enums
* @requires util
* @requires polyfills
* @requires worker/async_proxy
@ -41,6 +42,7 @@ import * as messageLib from './message';
import { CleartextMessage } from './cleartext';
import { generate, reformat } from './key';
import config from './config/config';
import enums from './enums';
import util from './util';
import AsyncProxy from './worker/async_proxy';
@ -581,10 +583,15 @@ function onError(message, error) {
}
/**
* Check for AES-GCM support and configuration by the user. Only browsers that
* implement the current WebCrypto specification support native AES-GCM.
* Check for native AEAD support and configuration by the user. Only
* browsers that implement the current WebCrypto specification support
* native GCM. Native EAX is built on CTR and CBC, which all browsers
* support. OCB and CFB are not natively supported.
* @returns {Boolean} If authenticated encryption should be used
*/
function nativeAEAD() {
return util.getWebCrypto() && config.aead_protect;
return config.aead_protect && (
((config.aead_protect_version !== 4 || config.aead_mode === enums.aead.gcm) && util.getWebCrypto()) ||
(config.aead_protect_version === 4 && config.aead_mode === enums.aead.eax && util.getWebCryptoAll())
);
}