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AsymmetricAlgorithm.TryExportSubjectPublicKeyInfo Method

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Definition

Namespace:
System.Security.Cryptography
Assembly:
System.Security.Cryptography.Primitives.dll
Assembly:
System.Security.Cryptography.dll
Assembly:
netstandard.dll
Source:
AsymmetricAlgorithm.cs
Source:
AsymmetricAlgorithm.cs
Source:
AsymmetricAlgorithm.cs

When overridden in a derived class, attempts to export the current key in the X.509 SubjectPublicKeyInfo format into a provided buffer.

public:
 virtual bool TryExportSubjectPublicKeyInfo(Span<System::Byte> destination, [Runtime::InteropServices::Out] int % bytesWritten);
public virtual bool TryExportSubjectPublicKeyInfo (Span<byte> destination, out int bytesWritten);
abstract member TryExportSubjectPublicKeyInfo : Span<byte> * int -> bool
override this.TryExportSubjectPublicKeyInfo : Span<byte> * int -> bool
Public Overridable Function TryExportSubjectPublicKeyInfo (destination As Span(Of Byte), ByRef bytesWritten As Integer) As Boolean

Parameters

destination
Span<Byte>

The byte span to receive the X.509 SubjectPublicKeyInfo data.

bytesWritten
Int32

When this method returns, contains a value that indicates the number of bytes written to destination. This parameter is treated as uninitialized.

Returns

Boolean

true if destination is big enough to receive the output; otherwise, false.

Exceptions

CryptographicException

The key could not be exported.

NotImplementedException

A derived type has not overriden this member.

Remarks

Because algorithm-specific support is required to produce this data format, TryExportSubjectPublicKeyInfo throws a NotImplementedException by default.

Applies to

See also