Every Device.
Authenticated.
At Scale.
ErlySign provides embedded PKI infrastructure for IoT device manufacturers — certificate lifecycle, firmware signing, and hardware-backed identity in a single platform.
One Platform. Every Device Identity Need.
Purpose-built for hardware teams shipping at scale — from factory floor provisioning to field-deployed certificate management.
Certificate Lifecycle
Automated provisioning, renewal, and revocation for device PKI across millions of endpoints.
Learn moreFirmware Code Signing
Secure OTA update signing, boot chain verification, and anti-rollback enforcement.
Learn moreDevice Attestation
Hardware root of trust with TPM and Secure Element support — cryptographically bound device identity from silicon.
Learn moreAPI & SDK
REST API, embedded C SDK, Python SDK — integrate into your manufacturing pipeline in under 2 days.
Learn moreBuilt for the Hardware Reality
Device identity is not a software problem — it starts at silicon and extends to the cloud.
Inject device identity at the factory floor
OEM teams use ErlySign to provision unique X.509 device certificates during manufacturing — before a device ever reaches the field. Each unit gets a cryptographically bound identity, eliminating shared secrets and manual provisioning errors at scale.
IoT manufacturer use case
Secure PLCs and edge controllers with verifiable identity
Industrial environments require device authentication that outlasts human-managed credentials. ErlySign provides automated certificate lifecycle management for PLCs, sensors, and edge gateways — aligned with IEC 62443 requirements for device authentication.
Industrial OT use case
ECU identity and V2X certificate management for connected vehicles
Vehicle ECUs require long-lived, updatable identity credentials tied to hardware. ErlySign's certificate management supports UN R155-aligned provisioning for ECU identity and provides the certificate lifecycle infrastructure for V2X pseudonym certificate rotation.
Automotive use case
From Chip to Cloud — In Four Steps
ErlySign fits into your existing engineering and manufacturing workflow without rearchitecting your device platform.
What early pilots are saying
We were manually issuing certificates per batch using an OpenSSL script that ran on a laptop on the factory floor. ErlySign's provisioning API replaced that with an automated call during ICT — now we don't think about it. Sub-50ms, every device, no exceptions.
IEC 62443 device authentication requirements were on our compliance backlog for two years. ErlySign gave us a certificate infrastructure we could point auditors at. The certificate revocation API was the piece we didn't know we needed until a controller failed in the field.
Start Securing Your Device Fleet
Request a pilot deployment — we provision your first 100 devices at no cost. No commitment required.