2.4 Security Model

Important

A comprehensive security analysis and formal proofs are beyond the scope of this overview and are addressed in subsequent sections.

Principles

The ASP security model is based on the following principles:

  1. Immutability: The Public Registry is append-only and immutable, ensuring the integrity of stored records.

  2. Privacy: Zero-knowledge proofs enable compliance verification without revealing sensitive details.

  3. Decentralization: The system operates across multiple protocols and doesn't rely on a single point of trust.

  4. Access Control: Strict policies to prevent unauthorized modifications to the Public Registry.

  5. Cryptographic Integrity: All records and proofs are cryptographically secured.

**The security of the ASP system relies on the following assumptions:**
  1. The underlying blockchain protocol’s security (e.g., Ethereum’s consensus mechanism).
  2. The cryptographic security of the hash functions used (e.g., Keccak-256, Poseidon).
  3. The soundness and zero-knowledge properties of the ZKP system employed.

Key security considerations include:

  1. Sybil Resistance: All system components must be resistant to Sybil attacks.

  2. Front-Running Protection: Measures to prevent front-running of compliance proofs.

  3. Privacy Leakage: Careful design & implementation of Interfaces & communication channels to prevent inadvertent privacy leaks through query patterns.

  4. Upgrade Security: Secure processes for updating classification rules and compliance policies.