site: weekly updates

Author: will-break-it

site/news/2025-07-01-weekly-progress-summary.md

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+---
+title: Weekly Summary – July 1, 2025
+authors:
+- will
+tags: [progress, update, weekly, high-throughput, attack-analysis, rust-simulation, trace-verification, performance-optimization]
+---
+
+This week, the Leios team achieved a significant milestone by successfully demonstrating protocol viability at 1,000 TPS, completed comprehensive attack surface analysis, and made substantial improvements to simulation and verification tools.
+
+## High-throughput demonstration
+
+- Successfully completed a 1,000 TPS experiment using basic 300-byte non-Plutus transactions
+- Demonstrated the viability of Leios protocol operation at extremely high throughput levels
+- Validated protocol performance under stress conditions significantly beyond current Cardano capacity
+- Documented detailed findings in the [1000 TPS analysis](https://github.com/input-output-hk/ouroboros-leios/blob/main/analysis/sims/2025w27/analysis.ipynb).
+
+## Security analysis
+
+- Completed comprehensive attack surface analysis for the second technical report
+- Defined terminology and taxonomy for potential Leios attack vectors
+- Categorized major attack types and their potential impacts on protocol security
+- Enhanced understanding of protocol vulnerabilities and mitigation strategies.
+
+## Rust simulation enhancements
+
+- Finished implementing support for input block (IB) equivocations in the simulation
+- Added capability to model and analyze protocol behavior under adversarial conditions
+- Enhanced simulation fidelity for security-related protocol testing.
+
+## Trace verifier performance optimization
+
+- Achieved 3x performance improvement by configuring minimum heap size to 1GB
+- Reduced garbage collection overhead from 75% to 2% of execution time
+- Enhanced profiling capabilities with detailed performance analysis tools
+- Improved verification efficiency for large-scale simulation trace analysis.
+
+## Protocol convergence for CIP
+
+- Intensified efforts to converge on a specific Leios variant for the Cardano Improvement Proposal (CIP)
+- Applied systematic evaluation methodology to rank protocol candidates from multiple angles
+- Evaluated efficiency metrics including temporal efficiency versus storage optimization trade-offs
+- Assessed attack surface and security vectors across different protocol variants
+- Analyzed utility factors including quality of service, developer friendliness, user experience, and downstream ecosystem impacts
+- Focused on eliminating candidates through evidence-based assessment of valuable protocol characteristics.