c# - How to use "InternalsVisibleTo" attribute with Strongly named assembly? -

i using "internalsvisibleto" attribute assembly expose internal methods/classes unit test project.

i need install assembly gac, need give strong name. when try doing that, following error in visual studio.

strong-name signed assemblies must specify public key in internalsvisibleto declarations

a bit of googling brought me article below:

https://msdn.microsoft.com/en-us/library/bb763089.aspx

this article states:

"determine public key strong-named friend assembly."

this article not how determine public key. find public key assembly? also, once have public key, correct way declare attribute?

[assembly: internalsvisibleto("namespace.assembly.example.name, publickey=thepublickey")] 

to use internalsvisibleto signed assembly "friends" assemblies must signed too.

note attribute not used actual validation of assembly @ compile time - specifies run-time checks (and compile-time checks friend's assembly) should validate identity. if just need compile main assembly can specify public key token (i.e. 1 microsoft's assemblies found on assembly references in web.config example).

generally since you'll signing assemblies you'd know public key. i.e. if have snk file sn -t yousnk.snk show public key. or can follow steps in getting public key token of assembly within visual studio configure vs show public token assembly.