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HMAC.Create Method

Updated: March 2011

Creates an instance of the default implementation of a Hash-based Message Authentication Code (HMAC).

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

public static HMAC Create()

Return Value

Type: System.Security.Cryptography.HMAC
A new SHA-1 instance, unless the default settings have been changed by using the <cryptoClass> element.

By default, this overload uses the SHA-1 implementation of HMAC. If you want to specify a different implementation, use the Create overload, which lets you specify an algorithm name, instead.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Date

History

Reason

March 2011

Corrected member information.

Customer feedback.

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