Client Proof-of-Work in TLS
A software implementation that mitigates DoS amplification attacks on the TLS handshake by requiring clients to perform proof-of-work computations.
Product Information
- Description
- This software implementation addresses denial-of-service amplification vulnerabilities in TLS handshakes by introducing computational challenges for clients. During the initial connection phase, clients must solve cryptographic puzzles that require measurable processing time, effectively distinguishing legitimate users from malicious bots attempting to overwhelm servers with connection requests. The solution integrates seamlessly with existing TLS protocols, requiring minimal configuration while maintaining backward compatibility with standard implementations. Key features include adjustable difficulty levels for proof-of-work calculations, efficient verification mechanisms that minimize server overhead, and support for various TLS versions and cipher suites. Primary use cases include protecting web servers, API endpoints, and other TLS-enabled services from resource exhaustion attacks, particularly in environments where traditional rate limiting or IP-based filtering proves insufficient. The implementation operates at the protocol level, providing protection before application-layer processing begins, making it especially valuable for high-traffic services vulnerable to amplification attacks.
- Categories
- Identity & Middleware
Linked NGI Projects
This product was created or improved through NGI-funded projects
Often Used Together
Products commonly used alongside Client Proof-of-Work in TLS
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