John_White at dell.com said:
> What about the Star Trek approach . . . .
>> A sensitive piece of data is protected by 5 passwords,
> any 3 of which will allow access.
This is described in _Secret Sharing_, pp 71-72 and 528-531 of Applied
Cryptography by Bruce Schneier.
> Anyone know of a real world implementation of this ?
Apparently, the LaGrange Interpolating Polynomial Scheme, Asmuth-Bloom,
Karnin-Greene-Hellman and some others ;) See the book for more details,
don't know if there's C though!
--j.
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