pkgsrc/security/ssss, branch pkgsrc_2009Q3[no description]https://git.osdyson.ru/mirror/pkgsrc/atom?h=pkgsrc_2009Q32009-08-09T05:52:36ZInitial import of security/ssss-0.5 into the packages collection.2009-08-09T05:52:36Zagcagc2009-08-09T05:52:36Zurn:sha1:c7ea2df050c6938641d0390e75a50645c96aacc9
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.