Answer:
Check the explanation
Explanation:
1) supposing the keystream is a stream that is of random bits in Z26, we can describe a stream cipher based on the Latin Alphabet that is as follows (where A ↔ 0, B ↔ 1, C ↔ 2 etc):
mod26
mod26
2)
= ” B ” − ” R ” = 1 − 17 = − 16 ≡ 10 mod 26 = ” K ” etc ·
The Decrypted Text is: ”KASPAR HAUSER”