Sub Topic 1 : email application
Proton Email
Proton Mail is a popular, privacy-focused email service based in Switzerland that uses end-to-end encryption (E2EE) and zero-access encryption to secure user messages, meaning only you can read your emails, not even Proton. It offers free and paid plans, providing an ad-free, tracker-free inbox with features like self-destructing messages, and is part of the broader Proton suite that includes VPN, Calendar, and Drive, all built on a commitment to privacy and Swiss law.
Key Features & How it Works
01
End-to-End Encryption (E2EE)
Emails between Proton Mail users are automatically encrypted on the sender's device and can only be decrypted by the intended recipient
02
Zero-Access Encryption
For emails received from non-Proton services (like Gmail), Proton immediately encrypts them upon arrival. This ensures that not even Proton can read your stored messages.
03
Password-Protected Emails
Users can send encrypted emails to non-Proton recipients by setting a password that the recipient must enter to view the message
Confidentiality, Integrity, and Availability (CIA) Analysis
Confidentiality
1. The messages exchanged between Proton users remain encrypted until your gadget or computer receives the message and then the subsequent messages are forwarded to the receiver.
2. Hide-my-email Aliases: Identity security allows you to use special Aliases to ensure that your actual email address will not be tracked by a third party.
INTEGRITY
1. Transparency: Proton apps are all open source and will be audited by third parties to confirm that there are no backdoors in the code.
2. Digital Signatures (PGP): Each email is cryptographically signed in order to verify that there has not been any manipulation of the content on its way to the receiver.
AVAILABILITY
1. Offline Mode (New 2025): You are able to read, search and compose emails without having an active internet connection in what is known as a major update.
2. Proton Sentinel: This is a sophisticated protection system which makes use of AI and 24/7 surveillance to avert account intrusions and unauthorized access