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X509Certificate Constructor (String, String, X509KeyStorageFlags)

Updated: January 2010

Initializes a new instance of the X509Certificate class using the name of a PKCS7 signed file, a password to access the certificate, and a key storage flag.

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

public X509Certificate(
	string fileName,
	string password,
	X509KeyStorageFlags keyStorageFlags
)

Parameters

fileName
Type: System.String

The name of a PKCS7 signed file.

password
Type: System.String

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

keyStorageFlags
Type: System.Security.Cryptography.X509Certificates.X509KeyStorageFlags

One of the X509KeyStorageFlags values.

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.

ArgumentException

The fileName parameter is null.

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.

  • FileIOPermission 

    for permission to read the file described by the fileName parameter. Associated enumeration: Read Security action: Demand

  • KeyContainerPermission 

    for permission to create a key container. Associated enumeration: Create. Security action: Demand

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

Date

History

Reason

January 2010

Added information about the type of the certificate file.

Customer feedback.

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