Friday, September 9, 2016

Symmetric Block Ciphers

Are you planning on taking the Security+ exam? Do you have a good understanding of symmetric algorithms and block ciphers.

As an example, can you answer this sample Security+ question?

Q. Which of the following algorithms encrypts data in 64-bit blocks?
 A. AES
 B. DES
 C. Twofish
 D. RC4

Check your answer here.