312-50V13 Question #510: Real Exam Question with Answer & Explanation

Question

You are the lead cybersecurity analyst at a multinational corporation that uses a hybrid encryption system to secure inter-departmental communications. The system uses RSA encryption for key exchange and AES for data encryption, taking advantage of the strengths of both asymmetric and symmetric encryption. Each RSA key pair has a size of 'n' bits, with larger keys providing more security at the cost of slower performance. The time complexity of generating an RSA key pair is O(n*2), and AES encryption has a time complexity of O(n). An attacker has developed a quantum algorithm with time complexity O((log n)*2) to crack RSA encryption. Given *n=4000' and variable `AES key size', which scenario is likely to provide the best balance of security and performance?

Options

• AData encryption with 3DES using a 168-bit key: Offers high security but slower performance due
• BData encryption with Blowfish using a 448-bit key: Offers high security but potential compatibility
• CData encryption with AES-128: Provides moderate security and fast encryption, offering a balance
• DData encryption with AES-256: Provides high security with better performance than 3DES, but not