_________ refer to common two-letter combinations in the English language.
A) Streaming
B) Transposition
C) Digrams
D) Polyalphabetic cipher
Correct Answer:
Verified
Q21: _ encryption is a form of cryptosystem
Q22: The _ was used as the standard
Q24: Cryptographic systems are characterized along three independent
Q27: The methods of _ conceal the existence
Q28: A way to improve on the simple
Q30: Techniques used for deciphering a message without
Q31: All encryption algorithms are based on two
Q31: A _ cipher processes the input one
Q32: _ attacks exploit the characteristics of the
Q36: An encryption scheme is _ secure if
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