K4SECURITY.Co.,Ltd

K4 Security is a specialized cybersecurity company providing robust infrastructure for the Web 3.0 era and the global Digital Product Passport (DPP) ecosystem. We bridge the gap between advanced blockchain technologies and practical industrial applications by offering standard-based, interoperable trust solutions. As a dedicated DPP infrastructure provider, our systems are fully aligned with the United Nations Transparency Protocol (UNTP). By mapping product lifecycle and supply chain data to UNTP Core Vocabularies, we ensure seamless global interoperability and verifiable traceability for sustainability claims. To support this highly transparent ecosystem securely, our Decentralized Identity (DID) architecture features advanced digital wallets fully compliant with OID4VCI and OID4VP standards. Utilizing SD-JWT (Selective Disclosure for JWTs), our solutions ensure critical data minimization and privacy protection—allowing businesses to meet DPP regulatory requirements without exposing sensitive trade secrets. Beyond our identity wallets, our proprietary solutions include a multi-layer DID resolver system for enhanced scalability and a high-speed, key-value storage database optimized for blockchain environments. Recognized through numerous patents and government awards, K4 Security is dedicated to building a secure, reliable, and standardized foundation for data sovereignty worldwide.