End-to-end encryption (E2EE) is a method of encrypting messages or data in a way that only the sender and recipient can read them. This is achieved by encrypting the data at the sender’s device and decrypting it at the recipient’s device. Here are the steps of how E2EE works:
1. Sender’s device: The data is encrypted at the sender’s device using a unique key.
1. Key exchange: The encrypted data is sent to the recipient’s device along with the key to decrypt it.
1. Recipient’s device: The receiving device uses the key to decrypt the encrypted data.
1. Message delivery: The decrypted data is then delivered to the recipient.
The key that is used to encrypt and decrypt the data is not saved or stored anywhere, ensuring that only the sender and recipient have access to the information. This prevents third parties from seeing the messages or data in transit. End-to-end encryption is used in various messaging apps and services, such as WhatsApp, Signal, and Telegram.
