Podcast
Questions and Answers
What is the goal of cryptanalysis?
What is the goal of cryptanalysis?
- To estimate the occurrence frequency of letters in a text
- To find the equivalent representation of the encryption algorithm
- To recover the plaintext or the key (correct)
- To encrypt the plaintext securely
What type of attack tries to find an equivalent representation of the encryption algorithm to simplify it?
What type of attack tries to find an equivalent representation of the encryption algorithm to simplify it?
- Algebraic attack (correct)
- Differential cryptanalysis
- Linear cryptanalysis
- Statistical attack
What level of cipher security is theoretically unbreakable, regardless of the amount of time or ciphertext available?
What level of cipher security is theoretically unbreakable, regardless of the amount of time or ciphertext available?
- Computationally secure
- Theoretically secure
- Unconditionally secure (correct)
- Statistically secure
What is the main objective of a brute-force attack?
What is the main objective of a brute-force attack?
What is the main criterion for a computationally secure cipher?
What is the main criterion for a computationally secure cipher?
What type of attack involves studying how the plaintexts difference propagates and affects the ciphertext difference?
What type of attack involves studying how the plaintexts difference propagates and affects the ciphertext difference?
What is the primary characteristic of symmetric encryption?
What is the primary characteristic of symmetric encryption?
What type of cipher uses different keys for the sender and receiver?
What type of cipher uses different keys for the sender and receiver?
Which type of cipher processes input elements continuously, producing output one element at a time?
Which type of cipher processes input elements continuously, producing output one element at a time?
What is the primary difference between block ciphers and stream ciphers?
What is the primary difference between block ciphers and stream ciphers?
What is the purpose of a hash function in symmetric encryption?
What is the purpose of a hash function in symmetric encryption?
What is the primary advantage of asymmetric encryption over symmetric encryption?
What is the primary advantage of asymmetric encryption over symmetric encryption?
What is the goal of encoding/decoding?
What is the goal of encoding/decoding?
What is the role of Alice in the cryptosystem?
What is the role of Alice in the cryptosystem?
What is the purpose of a cryptographic algorithm?
What is the purpose of a cryptographic algorithm?
What is the difference between a key and a keyspace?
What is the difference between a key and a keyspace?
What is the type of attack that exploits the characteristics of the algorithm?
What is the type of attack that exploits the characteristics of the algorithm?
What is the purpose of non-repudiation?
What is the purpose of non-repudiation?
