Create Method (String)
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ECDiffieHellman.Create Method (String)

Creates a new instance of the specified implementation of the Elliptic Curve Diffie-Hellman (ECDH) algorithm.

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

public static ECDiffieHellman Create(
	string algorithm
)

Parameters

algorithm
Type: System.String

The name of an implementation of the ECDH algorithm. The following strings all refer to the same implementation, which is the only implementation currently supported in the .NET Framework:

- "ECDH"

- "ECDiffieHellman"

- "ECDiffieHellmanCng"

- "System.Security.Cryptography.ECDiffieHellmanCng"

You can also provide the name of a custom ECDH implementation.

Return Value

Type: System.Security.Cryptography.ECDiffieHellman
A new instance of the specified implementation of this class. If the specified algorithm name does not map to an ECDH implementation, this method returns null.

ExceptionCondition
ArgumentNullException

The algorithm parameter is null.

If you develop your own implementation of an ECDiffieHellman object, you can use the Create(String) method overload to create a custom algorithm string that specifies your implementation.

If you specify a custom value for the algorithm parameter, the CryptoConfig object will use it to determine whether an ECDH object can be created.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5

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