X509Certificate Constructor (IntPtr)


Initializes a new instance of the X509Certificate class using a handle to an unmanaged PCCERT_CONTEXT structure.

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

public X509Certificate(
	IntPtr handle


Type: System.IntPtr

A handle to an unmanaged PCCERT_CONTEXT structure.

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.


The handle parameter does not represent a valid PCCERT_CONTEXT structure.

This constructor creates a new X509Certificate object using a handle for the Microsoft Cryptographic API certificate context, PCCERT_CONTEXT.


This constructor creates a copy of the certificate context. Do not assume that the context structure you passed to the constructor is valid; it may have been released. You can get a copy of the current PCCERT_CONTEXT structure from the Handle property, but it is valid only during the lifetime of the X509Certificate object.


requires full trust for the immediate caller. This class cannot be used by partially trusted or transparent code.


for the ability of inheritors to execute unmanaged code. Associated enumeration: SecurityPermissionFlag.UnmanagedCode

.NET Framework
Available since 1.1
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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