AsymmetricAlgorithm.TryExportSubjectPublicKeyInfo Method

Reference

Definition

Namespace:: System.Security.Cryptography

Assemblies:: netstandard.dll, System.Security.Cryptography.dll

Assemblies:: netstandard.dll, System.Security.Cryptography.Primitives.dll

Assembly:: System.Security.Cryptography.Primitives.dll

Assembly:: netstandard.dll

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Important

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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

Product	Versions
.NET	Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Standard	2.1

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