SEALSQ Files Side-Channel Protection Patent, Strengthens 126-Patent Portfolio for 2029 PQC
SEALSQ filed a patent application for a side-channel attack protection technique on polynomial cryptographic algorithms, bolstering its 126 active patents as Google targets full post-quantum security by 2029. This innovation coincides with the sampling phase of its QS7001 Quantum Shield microcontroller, embedding NIST-approved PQC in silicon.
1. Patent Application for Side-Channel Attack Protection
SEALSQ filed a patent application covering a novel protection technique at the message encoding stage of polynomial-based post-quantum cryptographic algorithms, hardening hardware implementations against side-channel attacks exploiting power consumption, electromagnetic emissions, and timing variations.
2. Alignment with Google’s 2029 PQC Deadline
The filing coincides with Google’s firm deadline for full post-quantum cryptography migration by 2029, targeting critical systems such as Android secure boot, Chromecast authentication, Widevine license requests, and cloud TLS operations, positioning SEALSQ for increased demand.
3. QS7001 Quantum Shield Sampling Phase
The new patent complements the ongoing sampling phase of the QS7001 Quantum Shield microcontroller, which embeds NIST-approved ML-KEM/Kyber and ML-DSA/Dilithium algorithms in silicon to deliver a tamper-resistant hardware root of trust for secure boot, authentication, and TLS.
4. Patent Portfolio Strength and Market Position
With 126 active patents and over 1.75 billion secure semiconductors deployed worldwide, SEALSQ’s intellectual property portfolio and product ecosystem—including semiconductors, PKI platform, and cryptographic agility services—aim to support OEMs in achieving certifiable migration ahead of industry deadlines.