10 Questions
Which algorithm outputs a key according to some distribution?
Gen
Which algorithm takes a key and a message as input and gives a ciphertext as output?
Enc
Which algorithm takes a key and a ciphertext as input and gives a message as output?
Dec
What does perfect correctness imply about the Dec algorithm?
It is deterministic
What does Pr[K = k] denote?
The probability that the key output by Gen is equal to k
What is the purpose of the Gen algorithm?
The purpose of the Gen algorithm is to output a key according to some distribution.
What does Enc algorithm do?
The Enc algorithm takes a key and a message as input and gives a ciphertext as output.
What does Dec algorithm do?
The Dec algorithm takes a key and a ciphertext as input and gives a message as output.
What does perfect correctness imply?
Perfect correctness implies that the Dec algorithm is deterministic and for any key k, message m, and ciphertext c output by Enc, Dec(k, c) = m with probability 1.
What do Pr[K = k] and Pr[M = m] denote?
Pr[K = k] denotes the probability that the key output by Gen is equal to k, and Pr[M = m] denotes the probability that the message takes on the value m.
Test your knowledge of probabilistic encryption algorithms with this quiz! Learn about the \texttt{Gen}, \texttt{Enc}, and \texttt{Dec} algorithms and their functionalities. Explore key spaces and understand how these algorithms work together to provide secure encryption.
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