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Exists Method (String)

CngKey.Exists Method (String)

Checks to see whether a named key exists in the default key storage provider (KSP).

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

public static bool Exists(
	string keyName
)

Parameters

keyName
Type: System.String

The key name.

Return Value

Type: System.Boolean
true if the named key exists in the default KSP; otherwise, false.

ExceptionCondition
ArgumentNullException

keyName is null.

PlatformNotSupportedException

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

CryptographicException

All other errors.

.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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