🛡 Aegis Consensus Lab Adaptive-Trust PBFT (AT-PBFT)

Aegis Consensus Lab is a research framework for adaptive Byzantine fault tolerance in distributed and cyber-physical systems.

It extends Practical Byzantine Fault Tolerance (PBFT) with:

Adaptive trust scoring

Weighted quorum formation

Dynamic primary rotation

Slashing & recovery

Cryptographic block sealing

View change under failure

Adversarial simulation support

Aegis is built for experimentation, resilience modeling, and security research — not cryptocurrency.

Why Aegis?

Classical PBFT assumes:

Static validator trust

Binary fault model (honest or Byzantine)

Fixed quorum (2f + 1)

Real-world infrastructure does not behave this way.

Nodes degrade. Trust erodes gradually. Partial compromise happens. Leaders fail intermittently.

AT-PBFT introduces continuous trust adaptation and weighted consensus to better model modern distributed environments.

Architecture agents/ Validator nodes core/ Consensus engine consensus/ Proposal & decision logic ledger/ Block append & verification state/ Runtime state (view, trust) policies/ Governance & safety constraints metrics/ Agreement & safety evaluation attacks/ Adversarial scenarios simulator/ Cyber-physical integration

The system is modular and shell-based for transparency and auditability.