In end-to-end encryption, who cannot read the messages?

In end-to-end encryption, who cannot read the messages?

• A. The communicating users
• B. The recipient only
• C. The service provider
• D. All users on the platform

Answer: (C)

End-to-end encryption works by keeping the decryption keys only on the devices of the people chatting. The message is encrypted on the sender’s device and can only be decrypted on the recipient’s device. Because the service that handles the data in transit doesn’t hold those decryption keys, it can’t read the actual content of the messages. The two participants can read what was sent because they have the keys on their devices. So, the party that cannot read the messages under end-to-end encryption is the service provider. (Note: metadata or unencrypted backups, if any, can still reveal some information, but the message content itself remains unreadable to the provider.)

End-to-end encryption works by keeping the decryption keys only on the devices of the people chatting. The message is encrypted on the sender’s device and can only be decrypted on the recipient’s device. Because the service that handles the data in transit doesn’t hold those decryption keys, it can’t read the actual content of the messages. The two participants can read what was sent because they have the keys on their devices. So, the party that cannot read the messages under end-to-end encryption is the service provider. (Note: metadata or unencrypted backups, if any, can still reveal some information, but the message content itself remains unreadable to the provider.)