X509Certificate.GetPublicKey 方法

public:
 virtual cli::array <System::Byte> ^ GetPublicKey();

public virtual byte[] GetPublicKey();

abstract member GetPublicKey : unit -> byte[]
override this.GetPublicKey : unit -> byte[]

Public Overridable Function GetPublicKey () As Byte()

返回

字节数组形式的 X.509 证书的公钥。

例外

示例

以下示例使用 GetPublicKey 方法将证书的公钥作为字节数组返回，并将其显示给控制台。

using System;
using System.Security.Cryptography.X509Certificates;

public class X509
{

    public static void Main()
    {

        // The path to the certificate.
        string Certificate =  "Certificate.cer";

        // Load the certificate into an X509Certificate object.
        X509Certificate cert = X509Certificate.CreateFromCertFile(Certificate);

        // Get the value.
        byte[] results = cert.GetPublicKey();

        // Display the value to the console.
        foreach(byte b in results)
        {
            Console.Write(b);
        }
    }
}

Imports System.Security.Cryptography.X509Certificates




Public Class X509
   
   
   Public Shared Sub Main()
      
      ' The path to the certificate.
      Dim Certificate As String = "Certificate.cer"
      
      ' Load the certificate into an X509Certificate object.
      Dim cert As X509Certificate = X509Certificate.CreateFromCertFile(Certificate)
      
      ' Get the value.
      Dim results As Byte() = cert.GetPublicKey()
      
      ' Display the value to the console.
      Dim b As Byte
      For Each b In  results
         Console.Write(b)
      Next b
   End Sub
End Class

注解

此值对应于证书中 subjectPublicKey SubjectPublicKeyInfo 数据字段的内容。