Twitter Crypt

About

Twitter Crypt lets you encrypt your tweets before posting them, ensuring that only people with the correct decryption key can read your messages. Perfect for private conversations in public tweets!

🔑 Key Features:
• One-click tweet encryption
• Multiple key management
• Share encryption keys with trusted contacts
• Full dark mode support
• Twitter-native design
• Real-time encryption/decryption

How the Encryption Works:
Twitter Crypt uses a unique three-layer encryption process to secure your messages:

1. Base64 Encoding Layer
   - Converts your message to UTF-8 bytes
   - Encodes it to Base64 format
   - Ensures all characters are safely transmitted

2. Vigenère Cipher Layer
   - Uses your secret key to encrypt the Base64 text
   - Applies a sliding window encryption
   - Preserves letter case and special characters

3. Emoji Substitution Layer
   - Converts encrypted text into a sequence of emojis
   - Uses a unique emoji for each character
   - Makes encrypted tweets visually distinctive
   - Adds the special prefix 𓅊𓅞 to mark encrypted tweets

Example:
Original tweet: "Hello World!"
After encryption: 𓅊𓅞🦄🏝🎯🎯🦋🌌🌙🦋🧃🎯🚀⚡

This means:
• Only someone with the exact same key can decrypt your messages
• Each layer adds additional security and uniqueness
• The emoji format makes encrypted tweets easy to identify
• Your keys are stored securely in your local browser storage
• The encryption process is completely reversible with the correct key

How to Use:
1. Create an Encryption Key
   - Open the extension popup
   - Create a new key with a name and value
   - Share this key securely with your intended audience

2. Encrypt Your Tweets
   - Write your tweet as normal
   - Click the lock icon to enable encryption
   - Select your encryption key
   - Post your tweet - it will be automatically encrypted

3. Decrypt Tweets
   - Look for tweets with the 𓅊𓅞 prefix
   - Click the "Decrypt" button
   - Select the correct key
   - View the decrypted message

Privacy & Security:
• All encryption happens in your browser
• No data sent to external servers
• Secure key storage
• No tracking or analytics

Perfect for:
• Anyone
• Private conversations
• Team communication
• Fun puzzles and games
• Secure messaging

Requirements:
• Chrome browser version 88+
• Active Twitter account
• Works on twitter.com and x.com

Note: This extension is not affiliated with Twitter/X Corp.

Privacy Policy
This extension does not collect any personal data. All encryption/decryption happens locally in your browser. Keys are stored only in your local browser storage. No data is sent to external servers, and no tracking or analytics are included.

Permission Justification
• storage: Required to save your encryption keys locally
• activeTab: Required to interact with Twitter's webpage
• scripting: Required to encrypt/decrypt tweets
• host_permissions (twitter.com, x.com): Required to function on Twitter's website