COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK SECURITY AND CYBERSECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which encryption method is most widely used and why?
A
Symmetric Encryption:this method is much faster to send and receive messages
B
Symmetric Encryption:this method is easier to use with SSL and HTTPS
C
Public Key Encryption:this method does not require a secure channel for exchanging keys
D
Public Key Encryption:this method is more widely available
Explanation: 

Detailed explanation-1: -Increased data security is the primary benefit of asymmetric cryptography. It is the most secure encryption process because users are never required to reveal or share their private keys, thus decreasing the chances of a cybercriminal discovering a user’s private key during transmission.

Detailed explanation-2: -AES and 3DES are the most widely used encryption method as it is strong and cannot be broken easily. The encryption of each data block happens with random salt making it complex and adding another layer of security to it.

Detailed explanation-3: -The most commonly used public-key cryptosystem is RSA, which is named after its three developers Ron Rivest (b. 1947), Adi Shamir, and Leonard Adleman (b. 1945).

Detailed explanation-4: -Public key cryptography remains the most secure protocol (over private key cryptography) because users never need to transmit or reveal their private keys to anyone, which lessens the chances of cyber criminals discovering an individual’s secret key during the transmission.

Detailed explanation-5: -The Advanced Encryption Standard (AES) is the trusted standard algorithm used by the United States government, as well as other organizations. Although extremely efficient in the 128-bit form, AES also uses 192-and 256-bit keys for very demanding encryption purposes.

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