In antiquity, the sigil embodied trust, secrecy, and integrity in safeguarding information. We continue this tradition in the era of supercomputers, quantum computing, and emerging AGI.
Z-Sigil
Seal Your Future in a Quantum World
Mission
Our mission is to safeguard privacy, security, and integrity in the digital age through a new paradigm of post-quantum cryptography.
Unlike traditional methods, our protocol has been designed from the ground up to resist even the most advanced forms of computation, including quantum computers — machines that do not expand what is computable, but dramatically increase the speed and scale at which certain problems can be solved.
We strive to preserve a free, plural, and decentralized Internet, where every individual can exercise the fundamental rights of opinion, expression, and communication.
Protecting information means protecting people. By supporting our work — even with a small gesture, like buying us a coffee — you contribute to ensuring that the digital world remains open and secure for all.
Vision
We have already developed a working prototype of our encryption protocol, designed from the ground up to withstand the challenges of both quantum computers and the most powerful classical supercomputers. Unlike many experimental solutions, our prototype is already functional and demonstrates strong performance.
Our vision is to transform this prototype into a mature, standardized technology, optimized for real-world use, and capable of becoming a cornerstone of post-quantum cybersecurity. We aim to make it accessible to individuals, businesses, and institutions alike — so that everyone, from a small company to a critical infrastructure, can benefit from long-term security.
In the near future, we plan to expand beyond secure messaging to protect sensitive banking data, healthcare systems, public institutions, and Italian military defense and Intelligence.
Looking further ahead, we want to anticipate the risks that will arise from increasingly powerful computation and from emerging Artificial General Intelligence (AGI). By doing so, we seek to ensure that digital trust, privacy, and security remain preserved in tomorrow’s world.
We invite those who share this vision to join us as investors or business angels, helping to shape the future together.
About us
- Andrea Rondelli (Founder): Mathematical physicist currently focusing on Cryptography, Quantum Information, and Brane Theory, with a background in Number Theory, Quantum Field Theory, and Gauge/String Dualities.
- Fabio Bondesan: Computer Engineering graduate with 15+ years in enterprise cybersecurity, resilient infrastructure, and regulatory compliance.
- Simone Vianello: theoretical physicist and software entrepreneur, expert in large‑scale system design and secure cloud integration.
Project
The name blends ‘Sigil’-a timeless emblem of protection-with ‘Z’, evoking the mathematical depth at its core. Z‑Sigil revives the antique tradition of sealing in the era of quantum, classical supercomputers and emerging AGI. Z‑Sigil pioneers a new multilayered asymmetric public-key algorithm grounded in functional analysis, differential geometry, and algebraic topology-fields never before used in cryptography. We have already demonstrated a rigorous, verified proof of concept, ensuring structural soundness and internal coherence from the start. Z‑Sigil is engineered for high compatibility, forward secrecy, and robust resistance against both quantum and AI-powered attacks. Built for integration into critical systems, Z‑Sigil empowers a wide range of stakeholders: small and medium-sized enterprises, high-tech industries, our Italian defense and intelligence agencies, public institutions, financial organizations, and any Internet user demanding privacy and strong information protection. The project includes a working prototype and a scientific publication, with a roadmap for auditability and standardization.