How to Share a Secret

Papers We Love San Diego
Papers We Love San Diego
Public group
Location image of event venue


"How to Share a Secret", by Adi Shamir (1979).

Presented by Nate Gentile.

Abstract: In this paper we show how to divide data D into n pieces in such a way that D is easily reconstructable from any k pieces, but even complete knowledge of k - 1 pieces reveals absolutely no information about D. This technique enables the construction of robust key management schemes for cryptographic systems that can function securely and reliably even when misfortunes destroy half the pieces and security breaches expose all but one of the remaining pieces.

In addition to the main talk by Nate, Marvin Humphrey will present a lightning talk on "When to Share a Secret", discussing Shamir's algorithm in the context of the death of QuadrigaCX CEO Gerald Cotten.

Street parking on 6th, 7th & 8th Avenues north of B Street is usually easy at that hour. Meters nearby are free after 6. Read signage before you park on A street.

If you're interested in presenting a paper please fill out this form ( or talk to us in person at the meetup.