Question: In Java: Write a program to allow the user to encrypt and decrypt LFSR-based ciphertext using a user-specified key. Speed is very important for stream

In Java:

Write a program to allow the user to encrypt and decrypt LFSR-based ciphertext using a user-specified key. Speed is very important for stream cipher design, so you are required to implement the stream cipher using bitwise operations

Please write the code through text instead of hand written, thanks.

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