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RsaEncryptionCookieTransform Constructor (X509Certificate2)

.NET Framework 4.5

Initializes a new instance of the RsaEncryptionCookieTransform class that uses the private key of the specified X.509 certificate for encryption and decryption.

Namespace:  System.IdentityModel
Assembly:  System.IdentityModel (in System.IdentityModel.dll)

public RsaEncryptionCookieTransform(
	X509Certificate2 certificate


Type: System.Security.Cryptography.X509Certificates.X509Certificate2

The certificate whose private key is used to encrypt and decrypt.

The certificate whose private key will be used as the default encryption and decryption key. Initializes the DecryptionKeys and EncryptionKey properties.


certificate is null.


certificate does not have a private key.


The private key is not RSA.

.NET Framework

Supported in: 4.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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