Cryptanalysis is the science of making encrypted data unencrypted.
Cryptanalysts
Practitioners of cryptanalysis are known as cryptanalysts.
Cryptanalysis in Context
A cryptographer will use cryptography to convert plaintext into ciphertext and a cryptanalyst will use cryptanalysis to attempt to turn that ciphertext back into plaintext.
Both the cryptographer and the cryptanalyst are cryptologists. Cryptography and cryptanalysis are the two sides of cryptology.


Kindly provide the solution to:
If p = 11 and q = 19, use the BBS algorithm to produce the k-th bit if xk-1 = 100. Explain how you got your answer.
Thank you in advance!
D. Moh