"In the era of AI and robotics, data processing and system control must be performed securely."
About Us
WaLLLnut is a lab-based startup team from the Cryptographic Communications Laboratory at Hanyang University. Based on quantum-resistant Fully Homomorphic Encryption (FHE) and Secure Multi-Party Computation (MPC), we ensure the security and privacy of data, computations, and control in AI, robotics, and cloud environments.
Encryption without real-world usability is meaningless.
WaLLLnut builds "field-ready, quantum-safe multiparty homomorphic encryption technology and services" that actually work in practice.
We design next-generation encryption systems that balance security and performance.
We pursue practical cryptographic technologies that bridge research and industry.
High-speed FHE structure for real-time AI and robot control
Compressed key switching and optimized modularization to reduce communication bottlenecks
Versatile and ready-to-use for privacy-preserving tech like PIR, LLM inference, federated learning, etc.
π Secure Multi-Party Computation (MPC)
Compute collaboratively while keeping data ownership intact
Secure computation even in zero-trust environments between companies or individuals
Combine with FHE for both security and practicality
Planned expansion to FHE-based hybrid MPC engines
βοΈ Cloud-Based FHE Services
Directly invoke homomorphic encryption computation via the FHE16 API
Apply AI models and statistical analysis without decrypting data
Security computation platform that provides insights without exposing sensitive information
π Private Information Retrieval (PIR)
Query only the necessary data without revealing what is being requested
Even the server cannot know what the user is asking for
Guarantees complete privacy in recommender systems, medical data searches, secure search engines, etc.
Equipped with high-performance FHE-based PIR engine
π Smart Contracts
WaLLLnutβs cryptographic technology goes beyond protecting data. It also enables secure execution and automation of smart contracts.
By using FHE and MPC, contract terms are processed in encrypted form, and only the results are revealedβenabling trustworthy execution without centralized authorities.
This is highly useful in finance, automated legal contracts, and blockchain-based services that require strong security and privacy.
π FHE and MPC Made Simple
π FHE (Fully Homomorphic Encryption)
A technology that enables computation on encrypted data without decryption.
This allows analysis and AI processing while keeping sensitive information safe.
π₯ MPC (Multi-Party Computation)
A structure where multiple parties compute collaboratively without revealing their data.
Enables cooperation in zero-trust environments.
π‘ Real-World Use Cases
WaLLLnut's technology solves crucial issues of data security and privacy in diverse fields.
π€ Robotics
Robots recognize and respond to usersβ behaviors without decryption, ensuring privacy
Ex: AI assistant robots recognizing home environments without exposing personal info to servers
π° Finance
Banks and fintechs can analyze customers' sensitive financial data without decrypting it
Ex: Calculate credit scores without revealing income or spending history
π§ AI
AI models compute on encrypted user data. FHE-based LLM inference becomes possible
Ex: Analyze emotions/preferences without exposing data to servers
π Contracts & Blockchain
Combine with smart contracts for secure and automated enforcement of sensitive agreements
Ex: Verify and execute healthcare or employment contracts while keeping data encrypted
𧬠Healthcare
Safely share or analyze patient records or genetic data across hospitals while protecting privacy
Ex: Hospital B analyzes data from Hospital Aβs patients without exposing personal information
π Databases / Search
Servers return exact data results without knowing what users searched
Ex: PIR-based search engine β completely private search with no history stored
π§βπ¬ Our Team
We go beyond theory. We develop technologies that are practical, field-tested, and post-quantum secure
We balance security with performance
We bridge research with real-world industry needs
We tailor our tech to meet the privacy and security needs of various industries
"For A Secure & Private World"
WaLLLnut envisions a world where security is not optional, but a given. All data should be protected, starting from the point of computation.
Even under zero-trust and quantum attacks, secure collaboration must be possible.
The quantum-resistant FHE and MPC developed by WaLLLnut are the most reliable starting point for this vision.
π€ Collaborations & Inquiries
Are you concerned about privacy and security in your AI systems, robots, or cloud environments?
Do you need new quantum-safe cryptography, MPC, or secure private services?
WaLLLnut solves these problems with fast, practical cryptographic technologies.