Multicast Encryption Key Management in Wagering Networks
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Solution Overview
Problem
Wagering game network systems face security challenges in encrypting multicast data, as existing point-to-point encryption techniques may not adequately protect data integrity and confidentiality, especially when multiple systems participate in multicast groups.
Innovation Solution
The implementation of a key-based encryption system where keys for multicast data are generated using a global passphrase not transmitted over the network, with random generators shared among participating systems, allowing them to encrypt and decrypt data securely, and key rotation mechanisms to enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If point-to-point encryption techniques are used between participating entities in the network, then data transmission security is improved, but device complexity and difficulty of key management increase when multiple systems participate in multicast groups
Solution Approach 1:
The patent merges multiple individual encryption key relationships into a single shared encryption key for the multicast group. Instead of requiring separate key management between each pair of participating entities, all systems in the multicast group use the same encryption key, which is distributed securely to group members. This combining approach maintains data transmission security while dramatically reducing key management complexity in multicast scenarios.
Solution Approach 2:
The patent implements a universal encryption key that serves all participating entities in the multicast group simultaneously. This single key enables all group members to encrypt and decrypt multicast data without requiring entity-specific keys, making the encryption system universally applicable across the entire multicast group and simplifying overall key management.
2Device complexity
If a shared encryption key is used for multicast data transmission, then key management complexity is reduced, but security against network snooping may be compromised compared to individual key pairs
Solution Approach 1:
The patent applies preliminary action by securely distributing the shared encryption key to authorized multicast group members before data transmission begins. The key is established through a secure key distribution mechanism prior to multicast operations, ensuring that only authorized participants possess the key. This preliminary secure key establishment maintains security against network snooping while enabling simplified key management for ongoing multicast communications.
Data Source
AI summary
Systems and methods described herein include wagering game systems that communicate with servers or other entities in a wagering game network using multicast groups. Data transmitted over the network for the multicast group is encrypted. Keys for the encryption and decryption of the data are generated based on a current key index for the multicast group, and a global passphrase. The global passphrase is not transmitted over the network.