Using Strong-Named Custom Assemblies


Applies To: SQL Server 2016 Preview

A strong name identifies an assembly and includes the assembly's text name, four-part version number, culture information (if provided), a public key, and a digital signature stored in the assembly's manifest. A strong name uniquely identifies an assembly to the common language runtime (CLR) and ensures binary integrity.

To use strong-named assemblies with reports, you must allow your strong-named assembly to be called by partially trusted code using the assembly's AllowPartiallyTrustedCallers attribute. You can use AllowPartiallyTrustedCallersAttribute to allow strong-named assemblies to be called by Report Designer or the report server in report expressions. To allow partially trusted code to call strong-named assemblies, add the following assembly-level attribute to your assembly attribute file.


AllowPartiallyTrustedCallersAttribute is effective only when applied by a strong-named assembly at the assembly level. For more information about applying attributes at the assembly level, see "Applying Attributes" in the Microsoft .NET Framework SDK documentation.

System_CAPS_ICON_caution.jpg Caution

When AllowPartiallyTrustedCallersAttribute is present, the default FullTrustLinkDemand security checks are prevented, making the assembly callable from any other partially trusted assembly. All security checks, including class-level or method-level declarative security attributes, must be explicitly stated.

Using Custom Assemblies with Reports

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