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WorksheetsUsable Encryption Quiz
Total questions: 20
Worksheet time: 10mins
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
What is the primary purpose of a digital signature?
To ensure data integrity and authenticity.
To encrypt data for secure transmission.
To provide a backup of data.
Which algorithm is commonly used for hashing passwords?
RSA
AES
SHA-256
What is the main disadvantage of Symmetric encryption?
Key distribution problem
Slower than Asymmetric encryption
Less secure than Asymmetric encryption
What is the primary function of a hash function in cryptography?
To encrypt data for secure storage.
To ensure data integrity by producing a fixed-size output.
To convert plaintext into ciphertext.
Which of the following is a common use case for Asymmetric encryption?
Data backup.
File compression.
Secure email communication.
What is the role of a Certificate Authority (CA) in digital security?
To issue digital certificates that verify the identity of entities.
To store user passwords securely.
To encrypt data during transmission.
What is the main benefit of using a password manager?
It requires users to remember all their passwords.
It stores passwords in plain text for easy access.
It generates strong passwords automatically.
What is the purpose of a public key in Asymmetric encryption?
To generate a hash of the data.
To decrypt data that was encrypted with the private key.
To encrypt data that can only be decrypted by the corresponding private key.
What is a common method to secure data in transit?
Using plain text for communication.
Storing data in a local database.
Using HTTPS protocol.
What does the term 'end-to-end encryption' refer to?
Data is encrypted on the sender's device and decrypted on the receiver's device.
Data is encrypted only during transmission.
Data is stored in an encrypted format on a server.
