![]() So here are the steps to Deploy your assembly into SQL server with External_Access privilege enabled. Otherwise the SQL service account is used. As long as the user is logged into SQL server with windows authentication. Generally when a user calls a stored procedure or asembly, it runs in the context of that user, if it needs to access an external resource, it uses the user’s credential to acces it. But the process is same for signing with certificate except a few syntax where you need to refer to the certificate instead of the Asymmetric key.Īnother situation when you can use asymmetric key is when you want to give permission to the assembly for a perticular resource, and you don’t want the user who calls the assembly to have access to it. In this blog I am going to talk mainly about signing assembly with asymmetric key. So the best way is to sign your assembly with a certificate or asymmetric key. But once you set it to ON, it might open up doors for malicious program. The TRUSTWORTHY database property is used to indicate whether the instance of SQL Server trusts the database and the contents within it. The easiest way is to set the Trustworthy Property of a database to ON, but it’s not good from security prospective. Of a database to ON or to sign your assembly with a certificate or Asymmetric key. ![]() So once you have decided that your assembly needs to be enabled for “External_Access” or “Unsafe”, you have two options. Only members of theįixed server role can create UNSAFE assemblies Privilege allows the assembly to perform operations that are considered type-unsafe by the CLR verifier. ![]() Privilege allows the assembly to access external resource like files, registry, environment variables etc. The third option is “Safe”, this is pretty straight forward and I am not going to cover that in this blog. In my opinion, One of the most complex part in deploying SQL CLR stored procedure is when you need to enable it for “External_Access” or “Unsafe”. ![]()
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