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Subject: CVS commit: pkgsrc/security/ssss
From: Alistair G. Crooks
Date: 2009-08-09 07:52:36
Message id: 20090809055236.29CFF175D0@cvs.netbsd.org
Log Message:
Initial import of security/ssss-0.5 into the packages collection.
Shamir's Secret Sharing Scheme (SSSS) is an implementation of a
threshold scheme for sharing a secret between third parties, and
requiring a threshold of those parties to collaborate to reveal the
secret.
Taken from the Wikipedia article about Secret Sharing:
In cryptography, a secret sharing scheme is a method for
distributing a secret amongst a group of participants, each of
which is allocated a share of the secret. The secret can only
be reconstructed when the shares are combined together;
individual shares are of no use on their own.
Shamir's scheme is provable secure: in a (t,n) scheme one can prove
that it makes no difference whether an attacker has t-1 valid shares
at his disposal or none at all; as long as he has less than t shares,
there is no better option than guessing to find out the secret.
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