SignQuantum, a post-quantum security provider, has launched a software add-on designed to safeguard digitally signed documents from cybersecurity threats posed by quantum computing. This solution integrates with existing e-signature platforms, allowing organizations to transition into the post-quantum era without requiring an overhaul of existing workflows. The product launch took place in Doha, Qatar, with participation from Johann Polecsak of QANplatform and H.E. Sheikh Mansoor Bin Khalifa Al-Thani of MBK Holding.
The SignQuantum add-on utilizes the U.S. National Institute of Standards and Technology’s (NIST) primary-recommended post-quantum algorithm and leverages quantum-resistant blockchain technology from QANplatform. This approach is intended to provide dual-layer security, maintaining digital signature authenticity and securing immutable proof of timing. QANplatform provides a blockchain capable of handling a large volume of digital transactions while offering a method for mathematically proving authenticity.
The digital signature industry, valued at $10.8 billion in 2025, is projected to experience significant growth, but also faces vulnerabilities from quantum computing. NIST is urging organizations to adopt quantum-resistant cryptography before 2030, after which current digital signature algorithms will be considered insecure and unsupported. This technology addresses the risk that documents signed today could be tampered with in the future, providing a pathway for organizations to adopt quantum-resistant solutions to maintain legal and regulatory trust.
Read the full announcement here.
August 6, 2025
