This topic has not yet been rated - Rate this topic

X509Certificate.CreateFromCertFile Method

.NET Framework 4

Other Versions

Creates an X.509v3 certificate from the specified PKCS7 signed file.

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

Syntax

C++

Copy

public static X509Certificate CreateFromCertFile(
	string filename
)

Parameters

filename: Type: System.String
The path of the PKCS7 signed file from which to create the X.509 certificate.

Return Value

Type: System.Security.Cryptography.X509Certificates.X509Certificate
The newly created X.509 certificate.

Exceptions

Exception	Condition
ArgumentException	The filename parameter is null.

Remarks

ASN.1 DER is the only certificate format supported by this class.

Note
The certificate file is not restricted to .cerfiles. Any PKCS7 signed file can be used, including an Authenticode signed .pfx file.

Examples

The following example creates an X509Certificate from a specified certification file.

C++

Copy



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.
        string resultsTrue = cert.ToString(true);

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

        // Get the value.
        string resultsFalse = cert.ToString(false);

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

    }

}

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

X509Certificate Class

System.Security.Cryptography.X509Certificates Namespace

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Content Add

FAQ