Import Method (String)

X509Certificate2.Import Method (String)

Populates an X509Certificate2 object with information from a certificate file.

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

[PermissionSetAttribute(SecurityAction.LinkDemand, Unrestricted = true)]
[PermissionSetAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)]
public override void Import(
	string fileName
)

Parameters

fileName
Type: System.String
The name of a certificate.

This method uses a certificate file, such as a file with a .cer extension, that represents an X.509 certificate and populates the X509Certificate2 object with the certificate the file contains.

This method can be used with several certificate types, including Base64-encoded or DER-encoded X.509 certificates, PFX/PKCS12 certificates, and signer certificates such as Authenticode. Note that a PFX/PKCS12 certificate can contain more than one certificate. In that case, the first certificate associated with a private key is used or, if no private key is found, the first certificate is used.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • SecurityAction.LinkDemand 

    for full trust for the immediate caller. This member cannot be used by partially trusted code.

  • SecurityAction.InheritanceDemand 

    for full trust for inheritors. This member cannot be inherited by partially trusted code.

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.

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