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[Building Blocks for Games] [Architecture] [Network Protocols] [Cryptography] [Papers]

Building Blocks --> Simultaneous Event Protocol

The Simultaneous Transaction allows multiple participants to create a logically simultaneous transaction – most familiar in the  casual game “Rock, Paper, Scissors”.

Simultaneous activity is not one that has been explored extensively in games, though many advanced computer games do assume a level of simultaneity for real-time games. Also, some turn-based games use simultaneity for revealing strategies or moves.

The Simultaneous Transaction is, essentially, the Secret Transaction extended to multiple secret holders and secret receivers. Each participant (via cryptography embedded in our protocols) writes their secret and places it in an envelope. Once all envelopes are sealed and available, they are all opened and all of the secrets are revealed.

The technical approach similarly extends that used for the Secret Transaction. Each participant creates a secret and appends a random value to it. Each then computes the irreversible transform and provides it to all of the other participants. Once a participant has received the transforms from all of the other participants, she sends her secret and appended random value to all of the other participants. The secrets can be validated, as above.

UPDATE: Simultaneous protocol now allows delayed simultaneous transactions. Transactions can now be simultaneously committed but have delayed disclosure by one or more transaction participants. This is a key feature to support the Simultaneous Random transaction and, in particular, collectible card type games where card decks are not shared. It can also be used for games like Stratego(TM) and Battleship(TM) rather than multiple Secret Transactions.

This technique is based on cryptographic algorithms integrated in a new way as described in our international patents.

The mathematics and details of this protocol are described in our Technology Section --> Cryptography (view the Cryptography for Secure Game Elements of Chance).

 

Related Pages::

Up
Random Events Protocol
Secret Events Protocol
Simultaneous Event Protocol
Synchronized Random Protocol
Strobe Timing Protocol
Ship Distribution  Protocol
ACT Protocol
Single Step Blast Protocol
Multi Step Protocol

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SecurePlay Anti-Cheating Middleware
SecurePlay Game Design and Development ProductsSecures your games, even if your source code is compromised. Available as C++, Java middleware (.exe code) libraries
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Copyright 1998 - 2008. SECUREPLAY™, IT GLOBALSECURE™, PLAYNOEVIL™ and IT ARMOR™ are registered trademarks. SECUREPLAY™ technology protects against network cheating, and is available via license from IT Globalsecure at www.secureplay.com  using patented technology from QUIXOTIC SOLUTIONS, an IT GLOBALSECURE™ affiliated company. Software protected by software license, including Simple Open Source and Commercial licenses, and one or more the following U.S. and International patent numbers: U.S. Patent 6,030,288, U.S. Patent 6,165,072, European Patent Office EP1016049A1,and World Intellectual Property Organization WO9912135C1 and additional filings worldwide. IT GlobalSecure, Quixotic Solutions, and Urban Revivals LLC are affiliated companies. Proud supporter of Classical Violin in Washington DC 
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