COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK SECURITY AND CYBERSECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following scenarios would breach the security of a message encrypted with a public key?
A
If the encrypted message was intercepted by a third party
B
If the holder of the private key forgot or destroyed the private key
C
If a third party accessed the private key
D
If the public key was made known
Explanation: 

Detailed explanation-1: -If a message encrypted with a public key gets altered or tampered with in transit, the recipient will not be able to decrypt it, so the tampered contents will not be viewable.

Detailed explanation-2: -Which of the following explains why open standards make encryption more secure? They are developed and reviewed by committees of experts and adopted by all Internet users. Which encryption method is most widely used and why? Public Key Encryption: this method does not require a secure channel for exchanging keys.

Detailed explanation-3: -Which of the following situations describes the human component of phishing? A hacker identifies a company to impersonate, then develops a believable email to distribute to a mass address list.

Detailed explanation-4: -Cryptanalysis is the art, science, or exercise of decrypting encrypted messages. Cryptanalysis assumes the cryptologists, mathematicians, and other scientists engaged in the process lack the secret key used for encryption and decryption.

There is 1 question to complete.