X509Certificate2 Constructor (String, SecureString, X509KeyStorageFlags)

X509Certificate2 Constructor (String, SecureString, X509KeyStorageFlags)


Initializes a new instance of the X509Certificate2 class using a certificate file name, a password, and a key storage flag.

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

public X509Certificate2(
	string fileName,
	SecureString password,
	X509KeyStorageFlags keyStorageFlags


Type: System.String

The name of a certificate file.

Type: System.Security.SecureString

The password required to access the X.509 certificate data.

Type: System.Security.Cryptography.X509Certificates.X509KeyStorageFlags

A bitwise combination of the enumeration values that control where and how to import the certificate.

Exception Condition

An error with the certificate occurs. For example:

  • The certificate file does not exist.

  • The certificate is invalid.

  • The certificate's password is incorrect.

If you create an X509Certificate certificate by specifying a PKCS7 signed file store for fileName, the X509Certificate is created for the certificate that signed the store rather than for any of the certificates within the store.


for accessing unmanaged code. Security action: LinkDemand. Associated enumeration: SecurityPermissionFlag.UnmanagedCode


for accessing unmanaged code. Security action: InheritanceDemand. Associated enumeration: SecurityPermissionFlag.UnmanagedCode

.NET Framework
Available since 2.0
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