Podcast
Questions and Answers
What are the components of a cryptosystem?
What are the components of a cryptosystem?
- Set of possible plaintexts, set of possible keys
- Set of possible plaintexts, set of possible ciphertexts, set of possible keys (correct)
- Set of possible keys, set of possible ciphertexts
- Set of possible plaintexts, set of possible ciphertexts
What is the purpose of the encryption function in a cryptosystem?
What is the purpose of the encryption function in a cryptosystem?
- To decrypt the plaintext using a parameter m
- To encrypt the plaintext using a parameter K (correct)
- To decrypt the ciphertext using a parameter K
- To encrypt the ciphertext using a parameter m
What is the decryption function used for in a cryptosystem?
What is the decryption function used for in a cryptosystem?
- To decrypt the ciphertext using a parameter K (correct)
- To decrypt the plaintext using a parameter m
- To encrypt the plaintext using a parameter K
- To encrypt the ciphertext using a parameter m
What is the key space in a cryptosystem?
What is the key space in a cryptosystem?
What is a shift cipher?
What is a shift cipher?
What is a substitution cipher?
What is a substitution cipher?
What is the purpose of cryptanalysis?
What is the purpose of cryptanalysis?