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X509Certificate2 Constructor (String)

Initializes a new instance of the X509Certificate2 class using a certificate file name.

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

public X509Certificate2(
	string fileName
)

Parameters

fileName
Type: System.String

The name of a certificate file.

ExceptionCondition
CryptographicException

An error with the certificate occurs. For example:

  • The certificate file does not exist.

  • The certificate is invalid.

  • The certificate's password is incorrect.

This constructor creates a new X509Certificate2 object using a certificate file name. It supports binary (DER) encoding or Base64 encoding.

If you create an X509Certificate2 certificate by specifying a PKCS7 signed file store for fileName, the X509Certificate2 is created for the certificate that signed the store rather than for any of the certificates within the store.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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