I think the best solution in this space would be to implement this: http://en.wikipedia.org/wiki/Shamirs_Secret_Sharing http://en.wikipedia.org/wiki/Shamirs_Se

I think the best solution in this space would be to implement this: http://en.wikipedia.org/wiki/Shamirs_Secret_Sharing http://en.wikipedia.org/wiki/Shamirs_Secret_Sharing Then you could nominate some family members, friends, significant other, such that some minimum number of them were required to collaborate to decrypt the files.