Discover the Intriguing World of Encryption with AES!

How many rounds of substitution and re-arranging does the Advanced Encryption Standard (AES) symmetric cipher use with a 256-bit key size?

A. 9 rounds

B. 11 rounds

C. 13 rounds

Answer:

The answer is "13 rounds".

The Advanced Encryption Standard (AES) symmetric cipher is a powerful encryption method that utilizes 13 rounds of substitution and re-arranging when using a 256-bit key size. This sophisticated encryption algorithm is widely recognized for its ability to provide robust security for sensitive data.

During the encryption process, AES performs a series of complex operations on the input data, including substitution and permutation of the data blocks. The use of 13 rounds with a 256-bit key size ensures a high level of security, making it extremely difficult for unauthorized users to decrypt the encrypted data.

Overall, the AES encryption algorithm is an essential tool for securing data in various applications, ranging from sensitive communications to financial transactions. Its robust security features and flexibility make it a popular choice for organizations and individuals looking to protect their information from prying eyes.