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ECDiffieHellmanCng Constructor (CngKey)

Initializes a new instance of the ECDiffieHellmanCng class by using the specified CngKey object.

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

public:
ECDiffieHellmanCng(
	CngKey^ key
)

Parameters

key
Type: System.Security.Cryptography::CngKey

The key that will be used as input to the cryptographic operations performed by the current object.

ExceptionCondition
ArgumentNullException

key is nullptr.

ArgumentException

key does not specify an Elliptic Curve Diffie-Hellman (ECDH) algorithm group.

PlatformNotSupportedException

Cryptography Next Generation (CNG) classes are not supported on this system.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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