Question

You are selecting an encryption algorithm for use in exchanging sensitive information over the Internet. Which one of the following algorithms would NOT be acceptable for use?

A. DES
B. RSA
C. AES
D. Blowfish

Answer 1

DES (Data Encryption Standard) is not acceptable for secure communication over the Internet due to its vulnerability to brute-force attacks, while RSA, AES, and Blowfish are secure modern encryption algorithms suitable for this purpose.

Step-by-step explanation:

When selecting an encryption algorithm for exchanging sensitive information over the Internet, the one that would NOT be acceptable for use is DES (Data Encryption Standard). DES is now considered to be insecure for many applications, mainly because it uses a 56-bit key which has been proven to be susceptible to brute-force attacks. In contrast, RSA (Rivest–Shamir–Adleman), AES (Advanced Encryption Standard), and Blowfish are more secure modern encryption algorithms, with AES being the industry standard for encrypting data.

RSA is an asymmetrical encryption algorithm often used for secure data transmission. AES is known for its speed and security; it has become the encryption standard recommended by many security experts. Blowfish is another algorithm that provides strong encryption and is designed to be fast and secure on a wide range of hardware.