Since a symmetric block cipher produces an apparently
random output it can serve as the basis of a
pseudorandom number generator.

Question

Quizplus · Accepted Answer

A symmetric block cipher, when used with a fixed key and varying plaintext inputs, can indeed produce output that appears random. This output can be utilized as a pseudorandom number generator (PRNG), as long as the underlying cipher is secure and the implementation is correct.

Since a Symmetric Block Cipher Produces an Apparently