Question: When is a cipher informational secure? a. When the information is encrypted. b. When the information can only be decrypted with a key. c. When

When is a cipher informational secure?

a. When the information is encrypted.

b. When the information can only be decrypted with a key.

c. When given unlimited computation time and memory it cannot be broken.

d. Only when given unlimited computation time and memory can it be broken.

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