Question: What is the difference between message authentication codes, message digest and hash MAC? What message authentication code has advantages over encryption? What are four axillary

What is the difference between message authentication codes, message digest and hash MAC? What message authentication code has advantages over encryption? What are four axillary functions of MD5 and what are their input-output bits?

What are DSA and its standard? What are Schnorr signatures effects? Name IAB task forces and their tasks?

SUBJECT : WIRELESS & MOBILE SECURITY

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