Message Authentication
What is Message Authentication. Explain?
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Message Authentication: Protecting a message from an active attack has a different set of requirements.
There are several approaches to this type of message authentication:
A) Authentication using symmetric encryption.
B) Methods without message Encryption - digital signature and key-hashed message authentication codes (HMACs)
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Explain whether the herbivorism a form of the predatism?
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During the 1930's, there were several climatic occurrences in the American Great Plains known collectively as the Dust Bowl. During this period of 5 to 7 years, severe dust storms and drought caused agricultural and ecological damage in the Plains.
What do you mean by food preservation?
What bearer types are utilized for WAP in GSM? In GSM, WAP can be run over the Short Message Service (SMS) or by means of Circuit Switched Data (CSD). The latter provides much greater bandwidth.
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