Learn more. Cannot find sn. Asked 12 years, 1 month ago. Active 2 years, 4 months ago. Viewed 82k times. I have. NET 3. Improve this question. Ruben Bartelink If you use Visual Studio command prompt it should work out of the box — Ruskin. Add a comment. Active Oldest Votes. You need to install the Windows SDK 6. If you've installed VS, you'll find it's already installed, and sn.
Improve this answer. The resulting key file contains both the public and the private key. You can extract the public key from the file and place it in a separate file like this:. Typically, you will only perform the above steps once per corporation or division because all assemblies you produce can use the same public and private keys as long as the assemblies have unique friendly text names.
Next, you need to associate the 1,bit public key with an assembly. In effect, this makes the public key an extension of the friendly text name of the assembly. Alternatively, when you only have access to the key file that contains just the public key, you must enable delay signing of the assembly. Therefore, instead of the above attributes, you need to specify the following attributes.
At this point, your assembly has a strong name. Further, if you specified that the compiler should not delay-sign the assembly therefore, the compiler did sign the assembly , the assembly is also a valid assembly and you can load it, debug it, and generally use it as you wish. However, if you specified that the compiler should delay-sign the assembly therefore, the compiler did not sign the assembly , you will discover that the runtime considers the assembly to be invalid and will not load it or allow you to debug and run it.
When the compiler digitally signs an assembly, it calculates a cryptographic digest of the contents of the assembly. The compiler encrypts the compile-time digest using the 1,bit private key from your public-private key pair file.
The compiler then stores this encrypted compile-time digest into the assembly. Note that this all happens during development. Sometime later, whenever the. NET loader loads an assembly with a strong name, the loader itself calculates a cryptographic digest of the contents of the assembly. The loader then extracts the encrypted compile-time digest from the assembly, extracts the public key for the assembly from the assembly itself, and uses the public key to decrypt the previously encrypted compile time digest.
The loader then compares the calculated runtime digest to the decrypted compile-time digest. When they are not equal, something or someone has modified the assembly since you compiled it; therefore, the runtime fails the assembly load operation. Note: Based on the above description, when you do not have access to the private key, you cannot encrypt the compile-time digest, thus cannot sign the assembly. In this case, you must delay-sign the assembly.
Because a delay-signed assembly does not contain a valid digital signature, the runtime will not load it. Window 10 VS TrueBers closed this Nov 10, LarryIII mentioned this issue Jan 18, Sign up for free to subscribe to this conversation on GitHub.
Already have an account? Sign in. You signed in with another tab or window. Reload to refresh your session. Create and sign an assembly with a strong name by using Visual Studio In Solution Explorer, open the shortcut menu for the project, and then choose Properties. Choose the Signing tab. Select the Sign the assembly box. In the Choose a strong name key file box, choose Browse, and then navigate to the key file.
The Strong Name tool Sn. The Strong Name tool is automatically installed with Visual Studio. How do I open Visual Studio command prompt?
On the start window, choose Continue without code. On the External Tools dialog box, choose the Add button. Enter a Title for your new menu item such as Command Prompt. What is a strong named assembly? A strong name consists of the assembly's identity—its simple text name, version number, and culture information if provided —plus a public key and a digital signature. A strong-named assembly can only use types from other strong-named assemblies. What does signing an assembly mean?
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