How does the end-to-end encryption work?

Every upload is protected by a unique secret key that is generated in your browser. This key is embedded directly into the shareable link.

Let's look at a sample URL:

https://aero.zip/nawit-notim-xezif-micer-pokal#wiqus-gesur-yizat-tezef-fahul

The link consists of two main parts separated by #:

• The first part, nawit-notim-xezif-micer-pokal, is the public upload ID.
• The second part, wiqus-gesur-yizat-tezef-fahul, is the secret key.

When a recipient opens the link, their web browser first uses the upload ID to request the encrypted file data from our servers. Then, it uses the secret key (which is only visible to the browser) to decrypt the files directly on their computer.

The secret key is never sent to our servers. This ensures that we, the service provider, have no way to decrypt or access your files. Only you and the person you share the link with can access the unencrypted data.