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SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform and designed to support post-quantum algorithms alongside RSA and ECC. The company plans a TLS 1.3 demonstration in November 2026 and expects engineering samples in Q2 2027; certification and product performance details remain pending.
SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform to support post-quantum cryptography alongside established algorithms in connected devices. The company says the product targets markets served by its VaultIC408 and is intended to let existing customers prepare for post-quantum security without redesigning their hardware security architecture.
SEALSQ says VaultIC409 is designed to support ML-KEM (FIPS 203) for key establishment and ML-DSA (FIPS 204) for digital signatures, as well as RSA and ECC. The company describes the combination as supporting classical and post-quantum mechanisms, including hybrid security approaches. These are stated design capabilities; the announcement does not provide independent test results or detailed performance figures.
The announced architecture includes a hardware Root of Trust, cryptographic agility, a dedicated cryptographic accelerator and a Serial Peripheral Interface (SPI) connection to a host device. SEALSQ says the accelerator handles computationally intensive cryptographic operations and that SPI is intended to accommodate the larger keys, signatures and certificates associated with some post-quantum protocols. The company positions the device for identity provisioning, credential protection and secure communications in connected products.
SEALSQ plans to demonstrate the device through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026, at its booth in Hall C6, stand 670. The company says engineering samples are expected in Q2 2027 for customer and partner evaluation. The underlying QS7001 platform is undergoing Common Criteria EAL5+ certification; the announcement does not say that certification has been completed.
A Hardware Route to PQC
VaultIC409 addresses a practical issue for manufacturers preparing products for post-quantum cryptography: newer algorithms can require larger data exchanges and different processing demands than traditional cryptographic methods. SEALSQ says its design is intended to bring those capabilities into an established secure-element product family, potentially allowing customers to adapt security functions without replacing their broader hardware security foundation.
That could matter to makers of industrial, smart-energy and IoT devices, which often need to protect device identities and communications over long product lifetimes. The announced support for both classical and post-quantum algorithms is presented as a way to support staged or hybrid deployment. Whether the device meets particular deployment needs will depend on implementation details, interoperability, performance and certification results that have not yet been published.
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VaultIC Family and Certification
VaultIC409 is an addition to SEALSQ’s VaultIC secure-element portfolio and is aimed at the same established markets as VaultIC408, according to the company. A secure element is a hardware component used to protect cryptographic keys and perform security functions separately from a device’s main processor. SEALSQ says VaultIC409 is designed to preserve that hardware-security approach while adding support for post-quantum algorithms.
The company’s announcement links the product to the wider shift toward standards-based post-quantum cryptography. It identifies ML-KEM and ML-DSA by their FIPS 203 and FIPS 204 designations, respectively. SEALSQ also says the QS7001 platform is undergoing Common Criteria EAL5+ certification. That process is ongoing, so the announcement should not be read as confirmation that the platform or the announced product has received that certification.
“VaultIC409 gives our customers a direct path to post-quantum security on a certified platform they already know.”
— Carlos Moreira, SEALSQ founder and CEO
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Certification and Performance Still Pending
The announcement does not provide benchmark results, power consumption, memory requirements, supported key or signature sizes, pricing or a final commercial release date. It also does not specify how the claimed compatibility with existing customer designs will vary across products, or which host devices and software stacks will be supported.
SEALSQ says the QS7001 platform is undergoing EAL5+ certification, but gives no completion date or certification outcome. The planned TLS 1.3 demonstration and future engineering samples may provide more detail, but neither has occurred as of the announcement. The source material also does not document independent validation of the device’s performance or security claims.
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Electronica Demo and Sample Testing
The next public milestone identified by SEALSQ is its planned Electronica demonstration on November 10–13, 2026. The company says the TLS 1.3 application will show how VaultIC409 is intended to support secure connectivity, but has not described the demonstration’s test conditions or announced third-party evaluation.
SEALSQ expects engineering samples in Q2 2027, when customers and partners are expected to begin evaluation and integration work. Further updates would be needed to establish sample availability, production timing, certification status and measured performance. Until then, VaultIC409 remains an announced product with planned demonstrations and samples rather than a broadly available component.
secure element with post-quantum algorithms
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Key Questions
What is SEALSQ VaultIC409?
VaultIC409 is a secure element announced by SEALSQ and built on its QS7001 platform. The company says it is designed to protect cryptographic assets and support security functions in connected devices.
Which cryptographic algorithms is it designed to support?
SEALSQ lists ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The announcement does not include independent performance measurements or a detailed compatibility list.
When will VaultIC409 be available?
SEALSQ expects engineering samples in Q2 2027. The company has not given a general commercial availability date.
Has VaultIC409 received Common Criteria EAL5+ certification?
No completion is confirmed in the announcement. SEALSQ says the underlying QS7001 platform is undergoing the EAL5+ certification process.
When is SEALSQ demonstrating the device?
The company plans to show a TLS 1.3 application at Electronica, November 10–13, 2026, at Hall C6, stand 670.
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