the stream cipher is similar to the one-time pad with a difference
being that a one-time pad uses a pseudorandom number stream
and a stream cipher uses a genuine random number stream.

Question

Quizplus · Accepted Answer

A one-time pad uses a genuine random number stream, ensuring perfect secrecy, while a stream cipher typically uses a pseudorandom number stream generated by an algorithm, making it practical for repeated use but not perfectly secure.

The Stream Cipher Is Similar to the One-Time Pad with a Difference