Which algorithm should you use?

You are developing an application that will transmit large amounts of data between a client computer and a server.

You need to ensure the validity of the data by using a cryptographic hashing algorithm.

Which algorithm should you use?
A . HMACSHA256
B . RNGCryptoServiceProvider
C . DES
D . Aes

View Answer

Answer: A

Explanation:

The .NET Framework provides the following classes that implement hashing algorithms:

• HMACSHA1.

• MACTripleDES.

• MD5CryptoServiceProvider.

• RIPEMD160.

• SHA1Managed.

• SHA256Managed.

• SHA384Managed.

• SHA512Managed.

HMAC variants of all of the Secure Hash Algorithm (SHA), Message Digest 5 (MD5), and RIPEMD-160 algorithms.

CryptoServiceProvider implementations (managed code wrappers) of all the SHA algorithms.

Cryptography Next Generation (CNG) implementations of all the MD5 and SHA algorithms.

Reference: http://msdn.microsoft.com/en-us/library/92f9ye3s.aspx#hash_values