TLSNotary

A Chrome extension for TLSNotary

TLSNotary Extension enables you to create cryptographic proofs of any data you access on the web. Prove ownership of your online accounts, verify your credentials, or demonstrate that you received specific information from a website—all without exposing your private data. ### What is TLSNotary? TLSNotary is an open-source protocol that allows you to prove the authenticity of any data fetched from websites. When you visit an HTTPS website, your browser establishes a secure TLS (Transport Layer Security) connection. TLSNotary leverages this existing security infrastructure to generate verifiable proofs that specific data was genuinely returned by a particular website, without requiring any cooperation from the website itself. ### Why Install This Extension? **Prove What You See Online** Have you ever needed to prove that a website displayed certain information? Whether it's proving your account balance, ownership of a social media profile, or the contents of a private message, TLSNotary creates tamper-proof cryptographic evidence that stands up to scrutiny. **Privacy-Preserving Proofs** Unlike screenshots or screen recordings that can be easily faked and expose all your data, TLSNotary proofs are: - Cryptographically verifiable and cannot be forged - Selectively disclosed—reveal only the specific data points you choose while keeping everything else private - Generated without exposing your login credentials or session tokens to third parties **No Website Cooperation Required** TLSNotary works with any HTTPS website without requiring the website to implement any special support. The proof generation happens entirely in your browser, using the standard TLS connection you already have. ### Key Features **Cryptographic Data Proofs** Generate unforgeable proofs that specific data was returned by a website. Each proof contains cryptographic evidence tied to the website's TLS certificate, making it impossible to fabricate or alter. **Selective Disclosure** Choose exactly what information to reveal in your proofs. Prove your account balance without revealing your transaction history. Verify your identity without exposing your full profile. Show specific fields while keeping everything else hidden. **Plugin System** Build and run custom plugins for specific proof workflows. The extension includes a Developer Console with a code editor for creating and testing plugins. Use React-like hooks for reactive UI updates and easy integration with the proof generation pipeline. **Multi-Window Management** Open and manage multiple browser windows for tracking different proof sessions. Each window maintains its own request history, allowing you to work on multiple proofs simultaneously. **Request Interception** Automatically capture HTTP/HTTPS requests from managed windows. View intercepted requests in real-time through an intuitive overlay interface. Select the specific requests you want to include in your proofs. **Sandboxed Execution** Plugins run in an isolated QuickJS WebAssembly environment for security. Network and filesystem access are disabled by default, ensuring plugins cannot access data beyond what you explicitly provide. ### Use Cases **Identity Verification** Prove you own a specific social media account, email address, or online profile without sharing your password or giving third-party access to your account. **Financial Attestations** Demonstrate your account balance, transaction history, or financial standing to lenders, landlords, or other parties who require proof—without exposing your complete financial information. **Content Authentication** Create verifiable evidence of online content that cannot be forged. Useful for legal documentation, journalism, research, or any situation where proving the authenticity of web content matters. **Credential Verification** Prove your credentials, certifications, or qualifications as displayed by official issuing organizations, without relying on easily-faked screenshots. **Privacy-Preserving KYC** Complete Know Your Customer (KYC) requirements while revealing only the minimum necessary information. Prove you meet eligibility criteria without exposing your full identity.