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SEALSQ Deploys Post-Quantum Cryptography to Secure Blockchain and Digital Transaction Infrastructures Through the Deployment of Post-Quantum Cryptographic (PQC) Technologies
Geneva, Switzerland, March 20, 2026 (GLOBE NEWSWIRE) -- SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or "Company"), a company that focuses on developing and selling
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[{"type":"text","content":"Geneva, Switzerland, March 20, 2026 (GLOBE NEWSWIRE) -- SEALSQ Corp (NASDAQ: LAES) (\"SEALSQ\" or \"Company\"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, today announced that as quantum computing advances toward practical applicability, it is strengthening blockchain and digital transaction infrastructures through the deployment of post-quantum cryptographic (PQC) technologies at both hardware and protocol levels. A frequently raised question in the industry is: “How many qubits are needed to break Bitcoin?” While a few thousands qubits could theoretically compromise RSA or elliptic curve cryptography using Shor’s algorithm, real-world constraints such as quantum error correction increase this requirement to tens of millions or even billions of physical qubits depending on implementations assumptions. With current quantum systems still limited to noisy intermediate-scale quantum (NISQ) devices, the threat remains future-oriented—but increasingly credible. In anticipation of this shift, SEALSQ is implementing a crypto-agile, quantum-resilient security architecture designed to protect blockchain ecosystems before large-scale quantum computers become operational. At the core of this approach is the integration of NIST-selected PQC algorithms, including lattice-based cryptography such as CRYSTALS-Kyber for key encapsulation (KEM) and CRYSTALS-Dilithium for digital signatures, replacing or augmenting traditional elliptic curve schemes. These algorithms are embedded directly into SEALSQ’s secure elements and TPM-class chips, enabling hardware root-of-trust, secure key generation, and tamper-resistant key storage. By allowing to anchor blockchain private keys in certified secure hardware, SEALSQ helps mitigate risks associated with key extraction, side-channel attacks, and future quantum decryption. To protect transaction integrity and identity, SEALSQ can integrate post-quantum digital signatures into blockchain transactions, ensuring long-term non-repudiation and resistance against quantum-enabled forgery. These signatures are supported by PKI infrastructures upgraded to support PQC certificates, enabling quantum-safe authentication across distributed systems. In collaboration with WeCan, a Swiss Blockchain financial platform, SEALSQ applies these...