Wagering game with encryption and authentication

Abstract

A computerized wagering game system includes a gaming module comprising gaming code which is operable when executed on to conduct a wagering game on which monetary value can be wagered, and a security module operable to perform at least one encryption function on information communicated via a network connection. The encryption functions include in various embodiments key management, authentication, or other encryption functions such as symmetric, asymmetric, hash, or message authentication code functions.

1 . A computerized wagering game apparatus, comprising:
 a gaming module comprising gaming code operable to present a wagering game on which monetary value can be wagered;   a network connection communicatively coupled to the gaming module; and   a security module operable to sequentially encrypt and transmit portions of an integral message via the network connection using an exchanged key and an interlock protocol.   
   
   
       2 . The computerized wagering game apparatus of  claim 1 , wherein the portions transmitted via the network connection comprise network data packets encrypted via IPSec. 
   
   
       3 . The computerized wagering game apparatus of  claim 1 , wherein the exchanged key comprises a public key. 
   
   
       4 . The computerized wagering game apparatus of  claim 1 , wherein the security module is operable to authenticate at least one of a received message or an identity of another computerized wagering game apparatus. 
   
   
       5 . A computerized wagering game system, comprising:
 a client machine comprising gaming code operable to present a wagering game on which monetary value can be wagered, a network connection communicatively coupled to the gaming module, and a client security module operable to sequentially encrypt and transmit portions of an integral client message via the network connection using one of a pair of exchanged keys and an interlock protocol; and   a server machine comprising a server security module operable to sequentially receive the portions of the integral client message, and to encrypt and transmit portions of an integral server message via the network connection using another one of the exchanged keys and the interlock protocol.   
   
   
       6 . The computerized wagering game system of  claim 5 , wherein the portions of the server message transmitted via the network connection comprise network data packets. 
   
   
       7 . The computerized wagering game system of  claim 5 , wherein the server security module is operable to combine the portions of the integral client message into a single encrypted message that can be decrypted with a private key to provide the integral client message. 
   
   
       8 . The computerized wagering game system of  claim 5 , wherein one of the portions of the integral client message comprises at least part of a session key. 
   
   
       9 . The computerized wagering game system of  claim 5 , comprising:
 a trusted database to receive the pair of exchanged keys.   
   
   
       10 . A method, comprising:
 presenting a wagering game on which monetary value can be wagered; and   sequentially encrypting and transmitting portions of an integral message associated with the wagering game via a network connection using one of a pair of exchanged keys and an interlock protocol.   
   
   
       11 . The method of  claim 10 , comprising:
 publishing the pair of exchanged keys to at least one of a trusted database and a key management authority.   
   
   
       12 . The method of  claim 10 , comprising:
 exchanging the pair of exchanged keys via messaging between two networked systems.   
   
   
       13 . The method of  claim 10 , comprising:
 executing the interlock protocol as an exchange of at least two encrypted message portions.   
   
   
       14 . (canceled) 
   
   
       15 . The method of  claim 10 , wherein one of the portions comprises:
 part of a session key.   
   
   
       16 . The method of  claim 10 , comprising:
 combining the portions of the integral message into a single encrypted message.   
   
   
       17 . The method of  claim 10 , comprising:
 decrypting a single encrypted message to provide the integral message using a private key.   
   
   
       18 . The method of  claim 10 , wherein one of the portions comprises even numbered bits of a block of data, and wherein another one of the portions comprises odd numbered bits of the block of data. 
   
   
       19 . The method of  claim 10 , comprising:
 decrypting a single encrypted message to provide the integral message using an initialization vector included in other than a first one of the portions.   
   
   
       20 . A machine-readable medium with instructions stored thereon, wherein the instructions, when executed, are operable to cause a computerized wagering game apparatus to:
 present a wagering game on which monetary value can be wagered; and   sequentially encrypt and transmit portions of a first integral message associated with the wagering game via a network connection using one of a pair of exchanged keys and an interlock protocol.   
   
   
       21 . The machine-readable medium of  claim 20 , wherein the instructions, when executed, are operable to cause a computerized wagering game apparatus to:
 sequentially receive and combine encrypted portions of a second integral message associated with the wagering game via a network connection to provide a single encrypted message.   
   
   
       22 .- 25 . (canceled) 
   
   
       26 . A computerized wagering game apparatus, comprising:
 a gaming module comprising gaming code operable to present a wagering game on which monetary value can be wagered;   a network connection communicatively coupled to the gaming module; and   a security module operable to transmit challenge data comprising a random number via the network connection, and to generate a message authentication code resulting from encrypting a result of performing a predetermined operation on the random number.   
   
   
       27 .- 50 . (canceled)