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X509Certificate.Equals Method (X509Certificate)

Updated: September 2010

Compares two X509Certificate objects for equality.

Namespace:  System.Security.Cryptography.X509Certificates
Assembly:  mscorlib (in mscorlib.dll)

public virtual bool Equals(
	X509Certificate other
)

Parameters

other
Type: System.Security.Cryptography.X509Certificates.X509Certificate

An X509Certificate object to compare to the current object.

Return Value

Type: System.Boolean
true if the current X509Certificate object is equal to the object specified by the other parameter; otherwise, false.

Two X509Certificate objects are considered equal if they have the same issuer and serial number.

The following example compares two certificates for equality.

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


public class X509
{

    public static void Main()
    {

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

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

        // Load the certificate into an X509Certificate object.
        X509Certificate certTwo = X509Certificate.CreateFromCertFile(OtherCertificate);

        // Get the value. 
        bool result = cert.Equals(certTwo);

        // Display the value to the console.
        Console.WriteLine(result);

    }

}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

Date

History

Reason

September 2010

Added information about how equality is determined.

Customer feedback.

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