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Conference: Defcon 31
Authors: Nikolaos Makriyannis Cryptography Research Lead at Fireblocks, Oren Yomtov Blockchain Research Lead at Fireblocks
2023-08-01
Multi-Party Computation (MPC) has become a common cryptographic technique for protecting hundreds of billions of dollars in cryptocurrency wallets. MPC algorithms are currently powering the wallets of Coinbase, Binance, Zengo, BitGo, Fireblocks and many other fintechs/banks servicing hundreds of millions of consumers and thousands of financial institutions.
This presentation examines the most common MPC protocols and implementations and shows that securing MPC remains a challenge for most companies.
We show practical key-exfiltration attacks requiring no more than a couple of hundred signatures. Namely, we show three different attacks on different protocols/implementations requiring 256, 16, and *one* signature, respectively.
Conference: KubeCon + CloudNativeCon North America 2022
Authors: Rajeshwar Vadheraju, Neelanjan Manna
2022-10-26
tldr - powered by Generative AI
Chaos engineering is a discipline that helps identify and resolve issues in distributed systems architecture, providing superior customer experience. FIS has developed an ecosystem to automate and scale chaos engineering across multiple products.
- Chaos engineering is a disciplinary practice experimenting on a system to find how resilient it is under turbulent or faulty conditions.
- Distributed systems architecture brings its own challenges, and chaos engineering can help identify and resolve issues around resiliency.
- FIS has developed an ecosystem to automate and scale chaos engineering across multiple products, identifying the toil within the practice and making it a repeatable process.
- The ecosystem includes load generators, APM tools, chaos tools, and Captain, which evaluates the chaos experiment and provides a pass/fail result.
- Chaos engineering can help validate architecture, measure business metrics, and ultimately provide greater customer experience and product quality.
Conference: KubeCon + CloudNativeCon Europe 2022
Authors: Mark Swarbrick
2022-05-20
tldr - powered by Generative AI
Implementing Linkerd as a service mesh improved application resilience and reliability in a cloud hosting platform
- Cloud hosting platforms have transient network failures and require TLS encryption for every microservice
- Implementing application retry logic and MTLS through Linkerd improved reliability and resilience
- Linkerd as a service mesh provided a perfect place to develop internal SLOs, dashboarding, and alerting
- Buoyant Cloud subscription provided even better dashboard stats
Conference: Transform X 2021
Authors: Jean-Denis Greze, Jag Duggal, Nima Ghamsari
2021-10-07
Melisa Tokmak (GM, Scale AI) moderates a discussion with Nima Ghamsari (CEO, Blend), Jag Duggal (CPO, Nubank), and Jean Dennis Greze (CTO, Plaid). Together, they discuss the evolution of financial services as companies race to put customer experience at the center of their focus while trying to reduce risk in the age of Machine Learning.