X509Certificate.CreateFromCertFile Method (String)


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

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

static member CreateFromCertFile : 
        filename:string -> X509Certificate


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.

Exception Condition

The filename parameter is null.

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


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

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

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Return to top