Web Application Encryption

B.

Among the given options, the encryption algorithm used to encrypt web application data is AES (Advanced Encryption Standard).

MD5 (Message Digest 5) and SHA (Secure Hash Algorithm) are not encryption algorithms, but rather they are hashing algorithms used for integrity verification and password storage.

DHA (Diffie-Hellman Algorithm) is a key exchange algorithm used to establish a shared secret between two parties, but it is not used for encryption.

AES is a symmetric encryption algorithm, meaning that it uses the same key for both encryption and decryption. AES is widely used to secure sensitive data transmitted over the internet, including web application data. AES is considered a strong encryption algorithm, as it is resistant to various attacks, including brute-force attacks, and has been adopted as a standard by the US government.

In summary, the correct answer is B. AES is used to encrypt web application data.