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X509Certificate2 Constructor (Byte[], String)

Initializes a new instance of the X509Certificate2 class using a byte array and a password.

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

public X509Certificate2(
	byte[] rawData,
	string password
)

Parameters

rawData
Type: System.Byte[]

A byte array containing data from an X.509 certificate.

password
Type: System.String

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

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 byte array and a password that is needed to access the certificate data. It is used with PKCS12 (PFX) files that contain the certificate's private key. Calling this constructor with the correct password decrypts the private key and saves it to a key container.

Security noteSecurity Note:

Never hard code a password within your source code. Hard-coded passwords can be retrieved from an assembly using the MSIL Disassembler (Ildasm.exe), a hex editor, or by simply opening up the assembly in a text editor such as Notepad.exe.

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

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

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