Board Thread:Theories and Speculation/@comment-30241447-20161016052814/@comment-25122992-20161016100953

I think that the seals themselves were created by Hagoromo through the use of the Rinnegan, but once they were completed, they can be given to anyone and work properly regardless if they possess Rinnegan too or not. It seems like neither Hagoromo's nor Sasuke's Rinnegan played any role in the sealing process.