URSA Privacy
High strength symmetric encryption for your favorite email, plus real-time secure chat
什麼是URSA Privacy？
URSA Privacy是由https://passlok.com/ursa開發的Chrome擴展程式，該擴展的主要功能是“High strength symmetric encryption for your favorite email, plus real-time secure chat”。
擴展截圖
下載URSA Privacy擴展crx文件
下載URSA Privacy擴展crx格式的文件，手動將Chrome擴充功能安裝到瀏覽器中，也可以將crx文件分享給朋友，輕鬆安裝Chrome擴充功能。
擴展使用說明
URSA sits near your tray bar to provide secure and easy symmetric encryption of text, images, and files. This is the process:
1. Click the bear icon to load URSA into a new tab.
2. Type the secret key into the top box. The recipient must know this key.
3. Type your message, possibly containing rich formatting, images, and even files into the large box, then click Encrypt.
The recipient will decrypt the encrypted message, which can be sent by email or some other means without fear of its being decrypted, by typing the same key, pasting the encrypted message, and clicking Decrypt.
If you feel really paranoid, URSA can encrypt into a cover image, so that it cannot be detected that anything is there. The image looks the same after the secret data have been injected.
URSA can also disguise its output so it appears to be normal text.
If you find yourself exchanging frequent messages with someone, you can switch into real-time chat, which can include text, files, audio, and even video!
URSA's main encryption algorithm is XSalsa20, included within the NaCl encryption library. This algorithm has extensively been vetted by experts for over ten years without flaws being found. There are also two experimental algorithms: Pad, which uses a large piece of text (from a book, or a webpage) as key and is theoretically unbreakable, and Human, which can be performed by hand if necessary.
URSA is fully compatible with PassLok Privacy, its larger sibling, also in this Web store. PassLok adds several asymmetric encryption modes, as well as secret splitting and digital signatures. There is also a web app at https://passlok.com/ursa
You can check the integrity of the web version of URSA with this data:
Current version of URSA is: 4.2.12 擴展基本資訊
| 名稱 |  URSA Privacy |
| ID | cpnepoggdhhhhljfkidmndnccodgfnik |
| 官方網址 | https://chromewebstore.google.com/detail/ursa-privacy/cpnepoggdhhhhljfkidmndnccodgfnik |
| 簡介 | High strength symmetric encryption for your favorite email, plus real-time secure chat |
| 檔案大小 | 152 KB |
| 安裝次數 | 18 |
| 目前版本 | 4.2.13 |
| 更新時間 | 2023-03-26 |
| 上架時間 | 2020-05-15 |
| 開發者 | https://passlok.com/ursa |
| 電子郵箱 | [email protected] |
| 付費類型 | free |
| 擴展官網 | https://passlok.com/ursa |
| 說明頁面URL | http://ursa-app.weebly.com |
| 隱私政策頁面URL | https://sites.google.com/view/passlok-privacy-policy/home |
| 支援的語言 | en-US |
| manifest.json | |
{
"update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
"name": "URSA Privacy",
"short_name": "URSA",
"description": "High strength symmetric encryption for your favorite email, plus real-time secure chat",
"version": "4.2.13",
"manifest_version": 3,
"icons": {
"16": "ursa-icon16.png",
"48": "ursa-icon48.png",
"128": "ursa-icon128.png"
},
"content_security_policy": {
"extension_pages": "default-src 'self'; img-src 'self' data:; connect-src 'self' data:; style-src 'self'"
},
"background": {
"service_worker": "background.js"
},
"action": {
"default_icon": {
"16": "ursa-icon16gray.png",
"48": "ursa-icon48gray.png"
},
"default_title": "URSA Privacy"
}
} | |
