When you do not have the code for an assembly and need a signed assembly use the following:
sn -k stackexchange.redis.snk
ildasm StackExchange.Redis.dll /out:StackExchange.Redis.il
move StackExchange.Redis.dll __StackExchange.Redis.dll
ilasm StackExchange.Redis.il /dll /resource=StackExchange.Redis.res /key=StackExchange.Redis.snk