What are the principles of usable encryption?

• Simplicity, Transparency, Forgiveness, Feedback, Customization, Persistent, Share with Anyone, Positive Control, Visibility and Audit

• Complexity, User Errors, Low Adoption Rates

• End-to-End Encrypted Messaging Apps, Full Disk Encryption, Password Managers

What is the background of Signal?

• Developed by Whisper Systems and endorsed by privacy advocates like Edward Snowden.

• Acquired by Facebook in 2014.

• Integrated into the Pro, Enterprise, and Education editions of Windows.

What is the encryption mechanism used by BitLocker?

• AES encryption algorithm with configurable key lengths (128 or 256 bits).

• XTS-AES-128 encryption method with a 256-bit key.

• AES-256 bit encryption with PBKDF2 SHA-256 and salted hashes.

What is the usability feature of LastPass?

• Auto-fill feature for stored passwords.

• Disappearing messages.

• Encryption happens automatically.

What is the definition of cryptography?

• A specialized area of mathematics concerned with protecting information.

• The mathematics responsible for turning plaintext into ciphertext.

• The process of converting ciphertext back to plaintext.

What are the two main encryption approaches?

• Symmetric encryption and Asymmetric encryption

• Only Symmetric encryption

• Only Asymmetric encryption

• None of the above

What is a prominent example of Symmetric encryption?

• AES

• RSA

• ElGamal

• None of the above

What is the main advantage of Asymmetric encryption?

• Doesn't require initial secure exchange of secret key

• Faster than Symmetric encryption

• Uses the same key for encryption and decryption

• None of the above

What do we get from encryption?

• Secrecy

• Integrity

• Authenticity

• All of the above

How do we improve the adoption of encryption?

• Better UX

• Better tools

• Better training

• Transparent encryption