32 PUBLIC GAMING INTERNATIONAL • MARCH/APRIL 2023 In an ongoing process over the past couple of years, we have already migrated about 98% of all IGT instant games over to NextGen security. This system not only increases transparency but gives us and our customers a checkpoint to monitor their games’ security. What’s the process for preventing unauthorized reconstructions? The game database generation process also includes what we call the Genesis Seed, which creates the unique arrangement of winning and non-winning tickets for the game being created. For live games, the Genesis Seed is created by a True Random Number Generator (TRNG), which ensures that the live-game production Genesis Seed is truly random and therefore unpredictable. This is similar in concept to the “shuffle seed” in legacy security systems, but with another important differentiator: IGT’s proprietary technology supports multiple levels of encryption of the Genesis Seed. At the foundational level, we encrypt the Genesis Seed with what’s called a One-Time Pad (OTP), the only form of encryption that’s been mathematically proven to be unbreakable, and that action is recorded in the blockchain. We then take the OTP-encrypted version of the Genesis Seed — the ciphertext — and encrypt it again with the public key of the lottery’s trusted third party. Again, this second-level encryption is recorded in the blockchain. And we can advance this security process n number of steps further by encrypting it with multiple trusted parties’ public keys — as many as the lottery designates — so that no one individual can access the unencrypted — cleartext — Genesis Seed (see Figure 2). Each “key” is a series of bits that are astronomically large (512 bits) – it runs to a decimal number with 154 zeros behind it. To provide some perspective on how big that number is, the estimated number of atoms in the Milky Way galaxy is a number with only 67 zeros behind it. FIGURE 2: The difference between the live game and a test game is the Genesis Seed, which for the live game is created anew by a True Random Number Generator (TRNG) for live games. IGT’s NextGen security system encrypts the Genesis Seed for a game with multiple trusted parties — as many as the lottery designates — so that no one individual can access the unencrypted (cleartext) version of the Genesis Seed.
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