SEALSQ INeS Managed PKI for IoT vs SEALSQ VaultIC408: Side-by-Side Comparison (2026)

SEALSQ INeS Managed PKI for IoT

Mid-market and enterprise teams deploying large IoT fleets will find real value in SEALSQ INeS for zero-touch onboarding and batch certificate provisioning to disconnected factories, where manual cert management becomes operationally impossible. The service covers the full NIST Identity Management and Platform Security functions through device attestation, automated lifecycle renewal, and native integration with AWS IoT Core and Azure DPS. Skip this if your IoT footprint is under a few thousand devices or if you need certificate management to double as a broader identity platform for non-IoT assets; INeS is purpose-built for device identity at scale, not workforce access.

SEALSQ VaultIC408

Enterprise and mid-market teams embedding IoT devices in mission-critical infrastructure should evaluate VaultIC408 for its tamper-resistant key generation and storage, which eliminates the attack surface of software-only device identity management. NIST FIPS 140-3 Level 3 certification with 572-bit elliptic curve support and true random number generation (SP 800-90A/B compliant) means cryptographic material stays isolated from compromised host firmware, addressing the PR.AA and PR.DS gaps that plague generic IoT platforms. Skip this if you need post-quantum algorithms or are still in the assessment phase; VaultIC408 is a hardware commitment for organizations that have already decided cryptographic isolation is non-negotiable.