Secure Coding Practices

Input validation

• Validate all incoming payloads against JSON schemas.
• Reject unknown fields that are not part of the schema or contract.
• Normalize and sanitize user-provided strings.

Output encoding

• Return JSON only and set explicit Content-Type headers.
• Avoid reflecting untrusted input in error messages.

Authentication and authorization

• Enforce least privilege for all API tokens.
• Use scoped tokens for administrative and node-to-node actions.

Secrets management

• Never store secrets in source control.
• Load secrets from environment variables or a secrets manager.

Cryptography

• Use well-tested libraries for Ed25519 and hashing.
• Use CSPRNGs for all key and token generation.

Dependency hygiene

• Pin dependency versions and monitor for CVEs.
• Run automated dependency audits before releases.

Logging

• Log security-relevant events (auth failures, invalid payloads).
• Redact sensitive data in logs.