Which protocol is superseded by AES?
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A. B. C. D.A.
The correct answer is A. DES (Data Encryption Standard).
AES (Advanced Encryption Standard) is a widely used encryption protocol that was introduced as a replacement for the outdated DES protocol. The DES protocol was once the standard for symmetric key encryption, but it is now considered insecure due to its small key size of 56 bits.
AES, on the other hand, is a modern symmetric encryption protocol that uses larger key sizes, ranging from 128 bits to 256 bits, making it more secure than DES. AES is used in many applications, including secure communications and data storage.
RSA (Rivest-Shamir-Adleman) is a public-key cryptography protocol that is used for secure key exchange and digital signatures. It is not a symmetric encryption protocol like DES or AES.
RC4 (Rivest Cipher 4) is a symmetric encryption protocol that was once widely used in web applications, wireless communication, and other systems. However, it is now considered insecure due to its vulnerabilities, and its use is discouraged.
MD5 (Message-Digest Algorithm 5) is a hash function that is used for data integrity verification, message authentication, and other applications. It is not an encryption protocol like DES or AES.
In summary, AES is a modern and widely used encryption protocol that supersedes the outdated DES protocol.