FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

TYPES OF NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
SSL and TLS keys of what length are generally considered to be strong?
A
128
B
1024
C
2048
D
4096
Explanation: 

Detailed explanation-1: -Ensure that all your SSL/TLS certificates, managed by AWS IAM, have a strong key length of 2048 or 4096 bit in order to adhere to security best practices and protect them from cryptographic algorithm hacking attacks using brute-force methods.

Detailed explanation-2: -For TLS server certificates, 2048-bit RSA keys or 256-bit ECDSA keys currently provide the best combination of security and performance.

Detailed explanation-3: -One of the TLS/SSL certificates used by your server uses a key that is considered weak due to its small key size. The recommended minimum sizes for RSA and ECDSA keys are 2, 048 bit and 256 bit, respectively.

Detailed explanation-4: -SSL certificates using 4096-bit keys can influence website performance, since key exchange is slower with larger keys. These large keys also increase the load on the server and slow down website loading. 2048-bit keys are expected to be completely secure through 2030.

Detailed explanation-5: -A 4096 bit key does provide a reasonable increase in strength over a 2048 bit key, and according to the GNFS complexity, encryption strength doesn’t drop off after 2048 bits. There’s a significant increase in CPU usage for the brief time of handshaking as a result of a 4096 bit key.

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