Strong Key is a naming convention used in computer programming. There can be more than one component (e.g.: DLL) with the same naming, but with different versions. This can lead to many conflicts.
Strong keys or names provide security of reference from one component to another or from a root key to a component. This is not the same as tamper resistance of the file containing any given component. Strong names also are a countermeasure against dll hell.
This key is produced by another computer program as a pair.