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The 64 bit block input key has _____ number of parity bits.(a) 4(b) 6(c) 8(d) 16I have been asked this question by my college professor while I was bunking the class.My doubt stems from Stream Encryption and Commercial Applications in section Spread Spectrum Techniques of Digital Communications

Answer»

Correct option is (c) 8

Easy explanation: The 64 BIT INPUT KEY has 8 parity bits placed in 8,16…..64 bit POSITIONS.



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