88888
(Choose 3 answers)
Which of the following are characteristics of achieving perfect secrecy with a one-time pad in information
theory? Select all that apply.
A. The key must be at least as long as the message
B. The key can be reused multiple times for different messages
C. The key must be completely random and kept secret
D. The message and key must be combined using a bitwise XOR operation
E. The key can be generated using a pseudorandom number generator
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