What is the use of strong names?

Question

How to Sign an Assembly with a Strong Name?

Answer 1

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.
You can use strong naming to ensure that when you load a DLL you get exactly the DLL you were expecting and not some other DLL that happens to have the same name.