Manufacturing Machine Identity & Zero Trust Access | Smallstep
Shared secrets break at industrial scale
Manufacturing environments rely on connected OT and IT systems, yet many still depend on shared credentials that cannot prove which device initiated a command. Smallstep replaces these secrets with short-lived, hardware-bound certificates that verify machine identity across plants and cloud environments without disrupting production.
Identity Risk Across Connected Production
Autonomous production systems
CNC machines, robotic arms, PLC-controlled lines, and analytics services authenticate continuously without human interaction.
Supply chain exposure
Suppliers, integrators, and maintenance vendors need remote access. Persistent credentials expand risk across partner networks.
No cryptographic attribution
Shared secrets cannot prove which device or workload issued a command. After an incident, attribution becomes guesswork.
Operational downtime risk
Credential compromise can halt production, delay shipments, and interrupt logistics with direct revenue impact.
Lateral movement across OT and IT
A compromised HMI or edge gateway can pivot into adjacent systems when identity controls are static or shared.
Executive accountability
Cyber disruptions and safety incidents trigger regulatory scrutiny and board attention. Identity becomes a control boundary.
Verifiable Machine and Workload Identity
Smallstep anchors identity in hardware roots of trust (TPM, Secure Enclave) and automatically issues short-lived certificates to verified devices and services. Certificates rotate continuously without manual intervention, eliminating embedded secrets from edge gateways, industrial apps, and cloud workloads.
Every connection is backed by cryptographic proof — simplifying incident response, audit reporting, and compliance validation.
A Control Plane for OT and IT
Manufacturers operate across multiple plants, hybrid environments, and legacy systems that cannot tolerate disruption.
Smallstep centralizes policy for factory-floor devices, edge gateways, cloud analytics, and supplier integrations. Replace fragmented secret distribution with automated certificate lifecycle management — with consistent controls across sites, teams, and environments.
Zero Trust for Industrial Throughput
Enforce continuous authentication without interrupting production cycles. Short-lived certificates eliminate emergency credential rotations that can halt lines. Decisions are based on verified device and workload identity — not static passwords, shared keys, or embedded secrets.
Meets Industrial Security Standards
Smallstep helps manufacturers align with leading cybersecurity frameworks:
- IEC 62443 (IACS security)
- NIST SP 800-82 (ICS security guidance)
- NIST Cybersecurity Framework (CSF)
- ISO/IEC 27001
- CMMC (for defense suppliers)
By replacing shared secrets with hardware-bound device identity, Smallstep supports compliance with requirements for cryptographic authentication, access control, and secure communications.
Cryptographic Identity, Not Shared Secrets
Industrial Systems Require Cryptographic Identity — Not Shared Secrets
| API Keys | Certificates | |
|---|---|---|
| Credential model | Portable shared secret | Bound to device and workload |
| Traceability | Limited attribution | Cryptographically provable |
| Lifecycle management | Manual rotation | Automated issuance and renewal |
| Blast radius | Broad and hard to constrain | Scoped and enforceable |
| Architecture alignment | Legacy IT-centric model | Designed for distributed industrial systems |
Scroll to the right to see more →
Integrates With Your Existing Manufacturing Security Stack
Smallstep works alongside your identity providers, MDM platforms, network infrastructure, cloud environments, and Kubernetes clusters. Deploy hardware-bound machine identity without replacing your current OT or IT architecture.
Enforce certificate-based authentication across SCADA systems, VPN gateways, ZTNA platforms, cloud providers, and SIEM tools — while maintaining operational continuity across plants and production lines.
Identity Is the New Industrial Control Boundary
As factories become software-defined and globally connected, identity defines operational trust. Replace shared secrets with verifiable machine identity — and reduce the risk that a single credential incident halts production.