NETWORK SECURITY
DIGITAL SIGNATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is a Hash Function?
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It creates a small flexible block of data
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It creates a small, fixed block of data
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It creates a encrypted block of data
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none of the mentioned
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Explanation:
Detailed explanation-1: -A hash function is a mathematical function that converts a numerical input value into another compressed numerical value. The input to the hash function is of arbitrary length but output is always of fixed length. Values returned by a hash function are called message digest or simply hash values.
Detailed explanation-2: -Salted plain-text values of the password. Hashed values of the password. Plain-text passwords stored in an encrypted database. Salted and hashed values of the password.
Detailed explanation-3: -Message Authentication Code When secret key information is included with the data that is processed by a cryptographic hash function, the resulting hash is known as an HMAC.
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