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Encrypto .crypto code#
Encrypto .crypto windows#

'Encryption key used to encrypt the stream. ' Create a new instance of the default Aes implementation class Using fileStream As New FileStream("TestData.txt", FileMode.OpenOrCreate) Using (StreamWriter encryptWriter = new(cryptoStream))Ĭonsole.WriteLine("The file was encrypted.") Ĭonsole.WriteLine($"The encryption failed. For example, new StreamWriter(cryptoStream, Encoding.Unicode). To change the text encoding, pass the desired encoding as the second parameter. By default, the StreamWriter uses UTF-8 encoding.

Encrypto .crypto code#

For example, see the highlighted line of code in the following example: using Create an instance of a default implementation class by using a factory method on the base algorithm class, and refer to the base algorithm class. The methods and properties you typically need are on the base algorithm class, such as Aes. In most cases, you don't need to directly reference an algorithm implementation class, such as AesCryptoServiceProvider. For more information, see Cross-Platform Cryptography. If the OS algorithms are FIPS-certified, then. NET 5 and later versions, all implementation classes ( *CryptoServiceProvider, *Managed, and *Cng) are wrappers for the operating system (OS) algorithms. *Managed implementations are not certified by the Federal Information Processing Standards (FIPS), and may be slower than the *CryptoServiceProvider and *Cng wrapper classes.

*Managed classes, such as AesManaged, are written entirely in managed code.

Encrypto .crypto windows#

*Cng algorithm classes, such as ECDiffieHellmanCng, are wrappers around the Windows Cryptography Next Generation (CNG) implementation.

*CryptoServiceProvider algorithm classes, such as AesCryptoServiceProvider, are wrappers around the Windows Cryptography API (CAPI) implementation of an algorithm.

The base for all symmetric algorithms is SymmetricAlgorithm, which is inherited by Aes, TripleDES, and others that are no longer recommended.Īes is inherited by AesCryptoServiceProvider, AesCng, and AesManaged. NETĪs an example of the different implementations available for an algorithm, consider symmetric algorithms. To create a new implementation of a specific algorithm, you would create a non-abstract derived class of that algorithm. For example, to create a new public-key algorithm, you would inherit from the AsymmetricAlgorithm class. This pattern of derived classes lets you add a new algorithm or a new implementation of an existing algorithm.

Implementation of an algorithm class that inherits from an algorithm class for example, AesManaged, RC2CryptoServiceProvider, or ECDiffieHellmanCng. This level is abstract.Īlgorithm class that inherits from an algorithm type class for example, Aes, RSA, or ECDiffieHellman. The hierarchy is as follows:Īlgorithm type class, such as SymmetricAlgorithm, AsymmetricAlgorithm, or HashAlgorithm. NET cryptography system implements an extensible pattern of derived class inheritance.

NET provides implementations of many standard cryptographic algorithms, and the.