.NET Framework Security

Using Symmetric Algorithms

Having introduced the cryptographic object model and the operation of CryptoStreams and ICryptoTransforms, we now move on to detailed discussions and examples of using each of the base types defined within the model: symmetric algorithm, cryptographic hash functions, keyed hash functions, random number generators, and asymmetric algorithms. We begin with the secret key ciphers, represented by the SymmetricAlgorithm class and its descendants. Secret key ciphers are most commonly used for bulk encryption—scenarios that require encrypting or decrypting large amounts of data. We start with a discussion of the structure of an object that derives from SymmetricAlgorithm, describe how to create individual instances of SymmetricAlgorithm ...