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Match each fungal scenario to the correct ecological role.

Every time a secure channel is initialized, a new key should be generated to encrypt communications. This type of key is called a _________.

If you have a digest d produced by a known hash function, and you try to find a message m that hashes to that digest, you are performing a ________ attack.

If a key generation process is __________, this means that all possible keys will appear with equal probability.

A block cipher in ______ mode can be straightforwardly used as a PRNG.

Which of the following represents the method of combining encryption and authentication known as MAC-then-encrypt?

Once you begin the test, you will have 75 minutes to complete it, and must complete it in one sitting. You may use the textbook, class materials, and your own notes, but no other internet usage or help from others. 

What is the primary reason that cryptographers consider it more secure to compute the MAC tag on the ciphertext rather than the plaintext?

If an encryption scheme is vulnerable to a bit-flipping attack, what does that allow an adversary to do?

Which of the following is NOT a guarantee that a secure channel seeks to provide?