COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

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

Detailed explanation-2: -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.

Detailed explanation-3: -When you’re using CloudFront alternate domain names and HTTPS, the maximum size of the public key in an SSL/TLS RSA certificate is 2048 bits. (This is the key size, not the number of characters in the public key.)

Detailed explanation-4: -RSA-4096 is a legitimate encryption cipher. It is one of the best encryption systems that you can use to protect your data in transmission. But, unfortunately, a system that is universally available can be used by miscreants as well as honest business people.

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