NETWORK SECURITY
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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secret
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cipher
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key
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none of the mentioned
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Detailed explanation-1: -A key is a number (or a set of numbers) that the cipher operates on, as an algorithm.
Detailed explanation-2: -Asymmetric, or public/private encryption, uses a pair of keys. Data encrypted with one key are decrypted only with the other key in the public/private key pair.
Detailed explanation-3: -Stream ciphers operate on one character of the message at a time. Each character has its own key, called the character key, typically taken from a larger key called the message key.
Detailed explanation-4: -Symmetric encryption requires that both the sender and receiver have the same key and each computes a common key that is subsequently used. Two of the most common symmetric encryption standards are known as Data Encryption Standard (DES) and Advanced Encryption Standard (AES).