FD3- Data Protection Flashcards
What is data protection method?
safeguard important information from corruption, compromise or loss.
Explain importance of Data Protection.
protect important information that is highly sensitive and private
Ensure data privacy and integrity
What are the 2 ways of protection methods in modern computing?
Encryption
Authentication
What is Encryption and Decryption
Encryption: Encoding data via encryption key
Decryption: Decoding data via decryption key
Explain advantages and disadvantages of encryption.
Advantages:
1)Only authorized person can access the data
2) Data can be moved safely. Without key, data will remain in encryption
Disadvantages:
1)Can be brute-forced ( trial and error)
2)Data is forever encrypted if the person lost the key
3)Encryption algorithm may be cracked
What is Authentication?
System Entry Security measure based on user input
What are the examples for Authentication?
Passwords
Digital Signature
Biometrics
What is Passwords?
A string of characters used to verify identity of users.
Comprise of alphabets, numbers and symbols
Data is only accessible when the correct character string is input
What are the advantages of Passwords
-easy to use
-easy to implement
-additional layer of protection
What are the disadvantages of passwords?
-can be brute-forced
-Strength of passwords depends of its complexity
-A burden to user if password is complicated
-No identity check to authenticate the user is real
What is a digital signature?
An electronic signature to identity of a sender to ensure validity of information.
What are the advantages of digital signatures?
-Ensure integrity
-Ensure accuracy (can only be decrypted by the correct key)
-Efficiency (faster and cheaper due to digitalization of data)
-Law evidence (faking signature is nearly impossible)
What are the disadvantages for digital signature?
-Certain countries might not legitimize digital signature
-Specific software are required to use digital singatures.
What is biometrics?
Authentication of person through comparison of bodily measurements to the pre-stored data of same person’s measurements
What are the examples of biometrics?
Face recognition
Fingerprint recognition
Voice Recognition
