Wahyu Andika Putra

Systems architect and security researcher operating at the intersection of applied cryptography, protocol engineering, and institutional digital financial infrastructure. Research focus spans post-quantum cryptographic systems, blockchain protocol design, and institutional-grade digital asset risk frameworks.

Methodology is security-first, protocol-level, and research-oriented. All systems are designed against adversarial threat models with regulatory compliance and long-term cryptographic agility as primary structural constraints.

Active engineering priorities include quantum-resistant blockchain primitives, privacy-preserving CBDC infrastructure, automated smart contract security tooling, and quantitative risk engines for decentralized finance protocol assessment.

[Active]  Implementing NIST PQC standard algorithms in a Rust cryptographic library for blockchain primitives
[Active]  Designing privacy-preserving CBDC prototype with ZK selective disclosure via Halo2
[Active]  Modular smart contract audit framework: static analysis integrated with formal verification tooling
[Active]  Quantitative risk engine for DeFi protocol exposure: liquidation cascades, oracle risk, VaR/CVaR

Protocol & Systems	Smart Contract & Web3	Security Engineering	Infrastructure	Application Layer	Research & Analytics

Engineering decisions at every layer are governed by these structural constraints:

1. Threat Modeling First — No system design begins without explicit adversary modeling (STRIDE/PASTA).
2. Minimal Attack Surface — Every exposed interface is a liability; every dependency is a risk vector.
3. Defense in Depth — No single control is treated as sufficient in isolation.
4. Zero Trust by Default — Identity, network, and data plane trust is never implicit.
5. Cryptographic Agility — Systems accommodate algorithm migration without requiring architectural overhaul.
6. Auditability — All security-critical paths are instrumented, logged, and independently verifiable.
7. Fail Secure — Failure modes are explicitly designed and tested; undefined behavior is unacceptable in production.

• Post-quantum signature schemes for distributed ledger environments (CRYSTALS-Dilithium, SPHINCS+)
• Threshold signature protocols and distributed key generation for institutional-grade custody architecture
• Zero-knowledge proof systems applied to privacy-preserving regulatory compliance (PLONK, Halo2)
• Cross-chain interoperability security: bridge architecture analysis and attack surface reduction
• Consensus mechanism security analysis: finality guarantees, validator collusion, liveness/safety tradeoffs
• Applied lattice cryptography for quantum-resistant blockchain primitive construction

• Stochastic volatility modeling for digital asset derivatives (Heston, SABR variants)
• On-chain liquidity risk: AMM slippage modeling, concentrated liquidity position exposure
• DeFi systemic risk quantification: contagion modeling, liquidation cascades, protocol interdependency mapping
• CBDC monetary transmission mechanism design and macroeconomic impact simulation
• Tokenomics engineering: incentive alignment design, token velocity analysis, governance attack surface
• Regulatory capital modeling for digital asset exposures under Basel III/IV treatment frameworks

Repositories currently in active development. This roadmap reflects primary engineering and research priorities.

• Post-quantum cryptographic migration strategies for existing blockchain infrastructure
• Formal verification of smart contract security properties at production scale
• Privacy-utility tradeoffs in central bank digital currency design
• AI-assisted vulnerability discovery: capabilities, limitations, and responsible application
• Systemic risk modeling in DeFi: interconnected protocol failure cascade analysis
• Digital sovereignty frameworks: technical architecture and regulatory dimensions

📊 Extended Statistics

Open to:

• Smart contract and protocol-level security audit engagements
• Research collaboration in post-quantum cryptography, CBDC design, and DeFi risk modeling
• Technical advisory for institutional blockchain infrastructure and digital asset risk frameworks
• Academic partnerships: joint research and technical co-authorship

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Unsolicited commercial outreach is not entertained. Research and technical collaboration inquiries are welcome.

_{All projects are developed with security, reproducibility, and institutional-grade standards as primary design constraints.}