Cue extension protonmail

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CUE (Cryptographic User Extension) is an open-source, decentralized, and end-to-end encrypted email extension developed by ProtonMail, a popular secure email service provider. Here's what you need to know:

What is CUE?

CUE is an extension that allows you to send and receive end-to-end encrypted emails directly from your browser, without relying on ProtonMail's servers. This means that only you and the recipient have access to the email content, making it virtually impossible for anyone else to intercept or read your emails.

How does CUE work?

When you install the CUE extension, it generates a pair of cryptographic keys: a public key and a private key. The public key is used to encrypt the email, while the private key is used to decrypt it. When you compose an email, CUE encrypts the content using the recipient's public key, which is stored in the CUE directory.

Benefits of using CUE

  1. End-to-end encryption: CUE ensures that only the sender and recipient can read the email content, providing maximum security and privacy.
  2. Decentralized: CUE is a decentralized solution, meaning that you don't need to rely on a third-party server to send or receive emails.
  3. Open-source: CUE is open-source, which means that the code is transparent and auditable, reducing the risk of backdoors or vulnerabilities.
  4. Easy to use: CUE is designed to be user-friendly, with a simple interface that makes it easy to send and receive encrypted emails.

How to use CUE

To use CUE, you'll need to:

  1. Install the CUE extension from the Chrome Web Store or Firefox Add-ons.
  2. Create a CUE directory on your computer, where you'll store your public and private keys.
  3. Configure your email client to use CUE (e.g., ProtonMail, Gmail, or any other email provider).
  4. Compose an email using CUE, selecting the recipient's public key from your CUE directory.
  5. Send the encrypted email, which will be decrypted by the recipient using their private key.

Conclusion

CUE is a powerful tool for securing your email communications, providing end-to-end encryption and decentralization. By using CUE, you can ensure that your emails remain private and secure, even in the face of increasingly sophisticated cyber threats.