Exam 312-50v12 topic 1 question 190 discussion

IPsec provides data encryption and data integrity. Module 11, page 1592

The only option that is valid, is A. C is indeed a strong encryption algorithm but standalone doesn't have the capabilities of detecting data tempering

Is C. key word " implement encryption for both data-at-rest and data-in-transit"

I think this addresses it. From Module 3 PG 391 To maximize network security, use strong encryption for all traffic placed on transmission media without considering its type and location. This is the best method to prevent IP spoofing attacks. IPSec can be used to drastically reduce the IP spoofing risk, as it provides data authentication, integrity, and confidentiality.

Chat GPT: Implement IPsec in addition to SSL/TLS: IPsec (Internet Protocol Security) is a protocol suite for securing Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of a session and negotiation of cryptographic keys to be used during the session. IPsec can be used in conjunction with SSL/TLS to provide an additional layer of security that includes integrity checks, ensuring that data has not been tampered with during transmission. This approach adds another layer of security that operates at a different layer of the network stack, providing comprehensive protection for data in transit.

C. Encrypt data using the AES algorithm before transmission. IPSec is redundant

ChatGPT said: Given these options, the most suitable choice for ensuring both confidentiality and integrity during data transmission is: C. Encrypt data using the AES algorithm before transmission. To ensure data integrity, you can also incorporate a message authentication code (MAC) or a digital signature along with AES encryption. This way, you'll have both encryption for confidentiality and a mechanism for detecting tampering during transmission.

C. To address data integrity, it is common to use encryption in combination with message authentication codes (MAC) or hash functions. In this case, encrypting the data using the AES algorithm before transmission and incorporating a mechanism for verifying the integrity of the data (such as using a HMAC - Hash-based Message Authentication Code) would help detect if the data was tampered with during transmission. Options A, B, and D do not specifically address the need for integrity checking during transmission: A. Implement IPsec in addition to SSL/TLS: IPsec is used for network layer security and could be redundant when SSL/TLS is already in place. B. Switch to using SSH for data transmission: While SSH provides encryption and integrity checking, it may not be the best choice for application-level data transmission, especially in a cloud environment. D. Use the cloud service provider's built-in encryption services: it may not be sufficient for ensuring integrity during data transmission unless combined with an appropriate integrity verification mechanism.

A. Implement IPsec in addition to SSL/TLS.