Article View: sci.crypt
Article #3025Re: Bit Commitment
From: Carl Ellison
Date: Sat, 09 Jan 1993 05:02
Date: Sat, 09 Jan 1993 05:02
18 lines
1284 bytes
1284 bytes
In article <C0IEo4.3pB@chinet.chi.il.us> schneier@chinet.chi.il.us (Bruce Schneier) writes: >Bit commitment is an easy protocol. Alice commits to a bit (or a series >of bits) in such a way that Bob does not know what the bits are until Alice >tells him, and Alice cannot change her bits once she has commited to them. > >What I am looking for is a real-world example of where this protocol would >be useful (besides magic tricks). I've used this in the past when sending out puzzles to friends along with my answer, encrypted. When they have submitted their solutions, I release the key revealing my solution. -- -- <<Disclaimer: All opinions expressed are my own, of course.>> -- Carl Ellison cme@sw.stratus.com -- Stratus Computer Inc. M3-2-BKW TEL: (508)460-2783 -- 55 Fairbanks Boulevard ; Marlborough MA 01752-1298 FAX: (508)624-7488
Technical Details
Message-ID:
<1ilm97INN46j@transfer.stratus.com>Path:
arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!transfer.stratus.com!ellisun.sw.stratus.com!cmeReferences:
<C0IEo4.3pB@chinet.chi.il.us>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!transfer.stratus.com!ellisun.sw.stratus.com!cme From: cme@ellisun.sw.stratus.com (Carl Ellison) Newsgroups: sci.crypt Subject: Re: Bit Commitment Date: 9 Jan 1993 05:02:31 GMT Organization: Stratus Computer, Software Engineering Lines: 18 Message-ID: <1ilm97INN46j@transfer.stratus.com> References: <C0IEo4.3pB@chinet.chi.il.us> NNTP-Posting-Host: ellisun.sw.stratus.com