ECDiffieHellman.TryExportECPrivateKey(Span<Byte>, Int32) 方法

定义

尝试以 ECPrivateKey 格式将当前密钥导入所提供的缓冲区。Attempts to export the current key in the ECPrivateKey format into a provided buffer.

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

参数

destination
Span<Byte>

用于接收 ECPrivateKey 数据的字节范围。The byte span to receive the ECPrivateKey data.

bytesWritten
Int32

此方法返回时,包含一个指示写入 destination 的字节数的值。When this method returns, contains a value that indicates the number of bytes written to destination. 该参数未经初始化即被处理。This parameter is treated as uninitialized.

返回

如果 destination 具有足够的大小以接收输出,则为 true;否则为 falsetrue if destination is big enough to receive the output; otherwise, false.

异常

未能导出密钥。The key could not be exported.

适用于

另请参阅

  • <xref:System.Security.Cryptography.ECDiffieHellman.ExportECPrivateKey()>