Secret splitting w/ threshold

Florian Weimer Weimer@CERT.Uni-Stuttgart.DE
Sat Mar 23 21:15:01 2002

Ryan Malayter <> writes:

> As I understand it, both of these schemes are equally secure, presuming
> large enough numbers are used as coefficients. Can anybody offer a reason
> why I shouldn't choose the easier geometic scheme?

If you really want to create your own scheme, you should use
successive encryption using one time pads (giving each officer (except
one) an OTP, and one officer gets the encrypted private key).

Your approach based on simple linear algebra might interact badly with
the actual cryptography.

Florian Weimer 	                  Weimer@CERT.Uni-Stuttgart.DE
University of Stuttgart           http://CERT.Uni-Stuttgart.DE/people/fw/
RUS-CERT                          +49-711-685-5973/fax +49-711-685-5898