NETWORK SECURITY
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sender use one key
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Receiver use same key
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Both use different key
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None of the above
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Detailed explanation-1: -Asymmetric encryption algorithms use two different keys for encryption and decryption. The key used for encryption is the public key, and the key used for decryption is the private key. Both the keys must belong to the receiver.
Detailed explanation-2: -Asymmetric encryption uses computationally hard problems with a secret(private), and shared (public) key. With asymmetric encryption, a message encrypted with one’s public key can only be deciphered by their private key and vice versa.
Detailed explanation-3: -A hacker with access to that one key can do both functions. Asymmetric encryption relies on two keys. One encrypts, and the other decodes. The result is a stronger level of security.
Detailed explanation-4: -Asymmetric keys are the foundation of Public Key Infrastructure (PKI) a cryptographic scheme requiring two different keys, one to lock or encrypt the plaintext, and one to unlock or decrypt the cyphertext. Neither key will do both functions. One key is published (public key) and the other is kept private (private key).