CryptoDataとは何ですか？

CryptoDataはOviによって開発されたChromeの拡張機能で、その主な機能は「Easily and quickly to encrypt / decrypt」です。

拡張機能のスクリーンショット

CryptoData拡張機能のCRXファイルをダウンロード

CryptoData拡張子のファイルをcrx形式でダウンロードし、ブラウザにChrome拡張機能を手動でインストールするか、crxファイルを友達と共有して簡単にChrome拡張機能をインストールします。

拡張機能の使用方法

Easily and quickly to encrypt / decrypt:
Private messages via e-mail, blogs, social networks, forums, websites, images, etc

This addon allows you to encrypt and decrypt the text: selected or manually entered text, as well as whole site
The encryption process is based on the US military standard Advanced Encryption Standard (AES)
https://en.wikipedia.org/wiki/Advanced_Encryption_Standard

JavaScript implementation (AES CTR) belongs to Chris Veness:
http://www.movable-type.co.uk/scripts/aes.html

All encryption and decryption is performed only on the client side without the involvement of external resources or Web services.

Examples encrypting the selected portion of text and web-site:
http://www.s3blog.org/crypto-data/examples.html

For users:
* Simply select the plain or encrypted text in your web browser, open the context menu by clicking the right mouse button, and you can easily encrypt or decrypt any text.

* There is also a possibility of automatic decryption.

For webmasters:
* With this extension you can encrypt any content on the server, e.g. html, javascript or images.
Even if website uses a secure HTTPS-connection and access to his page requires HTTP-authentication, it does not mean that you are fully protected!
There are many ways to steal your information, for example by using a proxy, sniffer or Trojan horse program (eg such as Zeus)
But when you use addon CryptoData attacker could only get a set of useless characters!

* For convenience webmasters CryptoData sends cookie s3crypt_site_enable = true to the encrypted site. Thus, the site can recognize that the client has CryptoData and it can get the encrypted content.

* An example of the implementation of the encryption algorithm on the server side:
http://www.s3blog.org/crypto-data.html

forums mozillaZine:
http://forums.mozillazine.org/viewtopic.php?t=2902265

拡張機能の基本情報

名前	CryptoData
ID	kddnbgkpmoimjnndiafmlacadfghkjjh
公式URL	https://chrome.google.com/webstore/detail/cryptodata/kddnbgkpmoimjnndiafmlacadfghkjjh
説明	Easily and quickly to encrypt / decrypt
ファイルサイズ	92.69 KB
インストール数	1,193
現在のバージョン	3.6
最終更新日	2018-11-08
公開日	2018-11-08
評価	4.70/5 合計 10 レビュー
開発者	Ovi
Eメール	[email protected]
支払い方法	free
プライバシーポリシーページのURL	http://www.s3blog.org/screengrab/privacy.html
対応言語	en,fr,ru,ko
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "manifest_version": 2, "name": "__MSG_extension_name__", "short_name": "__MSG_extension_name__", "description": "__MSG_extension_description__", "author": "Oleksandr Popov", "version": "3.6", "minimum_chrome_version": "45", "offline_enabled": true, "default_locale": "en", "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiBjd1woFHFV067aqWahtWVkUvPjN82fS0n5T94CfNVi83BYxb4dccjKsMQK+lk8\/zE7q\/0REfLc3QKbd0OH7cLWhBJu0AZdl9c3N3TqUZIV29HFY2ZueriGQMY95ULi22cnxoHtpWGOZSgFSdYhmZvJHyGZ73Wm25jJGkb4br7374uvZxSUYwf9KltrtgR8FdQWVQm01e0BYdwfI41xkGe3qr\/08ZGrrGH08pL2EWJRGJaYCzmZ+Iu8JBOBk3NSP3Wlq8Y+vMZokmdFC23fnydYLHWHwJvrmsG715eOi4EBXY9YiosbQH4Ye79T6lQSAC72MuLYYuTA\/ZCrafsEWRwIDAQAB", "content_scripts": [ { "js": [ "\/content\/content.js" ], "matches": [ "" ], "all_frames": true, "run_at": "document_end" } ], "applications": { "gecko": { "id": "s3crypto@data", "strict_min_version": "52.0" } }, "browser_action": { "default_icon": { "16": "skin\/s3crypt16.png" }, "default_popup": "content\/popup.html" }, "background": { "scripts": [ "background.js", "\/content\/aes_ctr.js", "\/content\/md5.js", "\/content\/base64.js", "\/content\/rc4.js", "\/content\/utils.js", "\/content\/prefs.js", "\/content\/i18n.js", "\/content\/header.js" ] }, "options_ui": { "page": "content\/options.html", "chrome_style": false, "open_in_tab": true }, "permissions": [ "activeTab", "background", "contextMenus", "storage", "tabs", "notifications", "clipboardWrite", "webRequest", "webRequestBlocking", "" ], "icons": { "16": "skin\/s3crypt16.png", "32": "skin\/s3crypt32.png", "48": "skin\/s3crypt48.png", "64": "skin\/s3crypt64.png", "128": "skin\/s3crypt128.png" } }