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CHANGING Secures Post Quantum Multiple Signature Invention Patent, Advancing Digital Signature and Software Supply Chain Security

CHANGING recently secured a Taiwan invention patent titled “Hash-Based Post-Quantum Multiple Signature System, Method, and Computer-Readable Medium,” patent certificate number I925491, published on May 11, 2026. The patent was co-invented by CHANGING R&D team members Sam Lee and Rusty Lin, reflecting the company's in-house research capabilities in post-quantum cryptography, digital signatures, and software supply chain security.