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SignFile Task

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Note

This article applies to Visual Studio 2015. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

Signs the specified file using the specified certificate.

Parameters

The following table describes the parameters of the SignFile task.

Note that SHA-256 certificates are allowed only on machines that have .NET 4.5 and higher.

Warning

Starting in Visual Studio 2013 Update 3, this task has a new signature that allows you to specify the target framework version for the file. You are encouraged to use the new signature wherever possible, because the MSBuild process uses SHA-256 hashes only when the target framework is .NET 4.5 or higher. If the target framework is .NET 4.0 or below, the SHA-256 hash will not be used.

Parameter Description
CertificateThumbprint Required String parameter.

Specifies the certificate to use for signing. This certificate must be in the current user's personal store.
SigningTarget Required ITaskItem parameter.

Specifies the files to sign with the certificate.
TimestampUrl Optional String parameter.

Specifies the URL of a time stamping server.
TargetFrameworkVersion The version of the .NET Framework that is used for the target.

Remarks

In addition to the parameters listed above, this task inherits parameters from the Task class. For a list of these additional parameters and their descriptions, see Task Base Class.

Example

The following example uses the SignFile task to sign the files specified in the FilesToSign item collection with the certificate specified by the Certificate property.

<Project xmlns="https://schemas.microsoft.com/developer/msbuild/2003">  
    <ItemGroup>  
        <FileToSign Include="File.exe" />  
    </ItemGroup>  
    <PropertyGroup>  
        <Certificate>Cert.cer</Certificate>  
    </PropertyGroup>  
    <Target Name="Sign">  
        <SignFile  
            CertificateThumbprint="$(CertificateThumbprint)"  
            SigningTarget="@(FileToSign)"   
            TargetFrameworkVersion="v4.5" />  
    </Target>  
</Project>

Note

The certificate thumbprint is the SHA-1 hash of the certificate. For more information, see Obtain the SHA-1 Hash of a Trusted Root CA Certificate.

Example

The following example uses the Exec task to sign the files specified in the FilesToSign item collection with the certificate specified by the Certificate property. You can use this to sign Windows Installer files during the build process.

<Project xmlns="https://schemas.microsoft.com/developer/msbuild/2003">  
    <ItemGroup>  
        <FileToSign Include="File.msi" />  
    </ItemGroup>  
    <PropertyGroup>  
        <Certificate>Cert.cer</Certificate>  
    </PropertyGroup>  
    <Target Name="Sign">  
        <Exec Command="signtool.exe sign /f CertFile /p Password "@(FileToSign)" "/>  
        <SignFile  
            CertificateThumbprint="$(CertificateThumbprint)"  
            SigningTarget="@(FileToSign)"   
            TargetFrameworkVersion="v4.0" />  
    </Target>  
</Project>

See Also

Task Reference
Tasks