HMACSHA512.ProduceLegacyHmacValues Property

Definition

Namespace:

System.Security.Cryptography

Assembly:

System.Security.Cryptography.dll

Source:

HMACSHA512.cs

Caution

ProduceLegacyHmacValues is obsolete. Producing legacy HMAC values is not supported.

Provides a workaround for the .NET Framework 2.0 implementation of the HMACSHA512 algorithm, which is inconsistent with the .NET Framework 2.0 Service Pack 1 implementation.

public:
 property bool ProduceLegacyHmacValues { bool get(); void set(bool value); };

[System.Obsolete("ProduceLegacyHmacValues is obsolete. Producing legacy HMAC values is not supported.", DiagnosticId="SYSLIB0029", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public bool ProduceLegacyHmacValues { get; set; }

[<System.Obsolete("ProduceLegacyHmacValues is obsolete. Producing legacy HMAC values is not supported.", DiagnosticId="SYSLIB0029", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
member this.ProduceLegacyHmacValues : bool with get, set

Public Property ProduceLegacyHmacValues As Boolean

Property Value

Boolean

true to enable .NET Framework 2.0 Service Pack 1 applications to interact with .NET Framework 2.0 applications; otherwise, false.

Attributes

ObsoleteAttribute

Remarks

The purpose of the ProduceLegacyHmacValues Boolean property is to enable .NET Framework 2.0 Service Pack 1 applications to interact with .NET Framework 2.0 applications. When you set this property to true, the HMACSHA512 object produces values that match the values produced by the .NET Framework 2.0. You should set this property only once after you create your HMAC object. You will need to reset your key afterwards, as shown in the following example.

public static void Test()
{  
    var hmac = new HMACSHA512();  
    hmac.ProduceLegacyHmacValues = true;  
    hmac.Key = // ...Get the HMAC key.  
    // ...  
    // Use the HMAC algorithm.  
    // ...
}  

See also

• Cryptographic Services