RNG Crypto Specialist

Use this skill to make RNG behavior reproducible, tamper-evident, and independently verifiable.

Workflow

1. Define fairness contract before implementation.

• Specify game outcomes that are RNG-derived, transcript fields, and reveal timing.
• Set immutable rules for server seed rotation, client seed changes, and nonce increments.
• Declare what players can verify pre- and post-reveal.

2. Choose cryptographic primitives and transcript schema.

• Prefer SHA-256 commitments and HMAC-SHA256 outcome derivation unless the system requires otherwise.
• Store canonical transcript fields: serverSeedHash, serverSeed (after reveal), clientSeed, nonce, gameId, mode, and outcome.
• Define exact string/byte serialization and encoding rules to avoid replay mismatches.