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CryptoConfig.AddAlgorithm Method

Adds a set of names to algorithm mappings to be used for the current application domain.

Namespace:  System.Security.Cryptography
Assembly:  mscorlib (in mscorlib.dll)

public static void AddAlgorithm(
	Type algorithm,
	params string[] names


Type: System.Type

The algorithm to map to.

Type: System.String[]

An array of names to map to the algorithm.


The algorithm or names parameter is null.


algorithm cannot be accessed from outside the assembly.


One of the entries in the names parameter is empty or null.

The specified mappings take precedence over the built-in mappings and the mappings in the machine.config file. The mappings are used to prevent partially trust code from using trusted cryptographic operations.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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