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eSIM Root of Trust
Connect eSIM network access with IoT SAFE application credentials, protected cryptographic operations, and a manageable device lifecycle.
Every connection starts with a trusted identity. TeyzSec brings hardware rooted trust to your connected device fleet.
The eSIM profile enables network access. IoT SAFE credentials authenticate the application. Two layers of trust.
Keep private keys in the secure element. The application runs TLS on the host, while middleware requests protected cryptographic operations.
Authenticate both ends. The device application and its service validate certificates, establish mutual trust, and exchange application data over an encrypted connection.
Manage the device lifecycle. Enroll and provision devices, activate service, rotate credentials, and revoke access when it is no longer needed.
Connect device identity, attestation, and confidential processing. Identify the device, evaluate software trust, and protect sensitive data in use.
Root identity in hardware. Build trust end to end. Visit TeyzSec dot com. Scan the code to connect.
01 / The challenge
Connecting a device to a mobile network and trusting its application are separate tasks. Fleets need a way to protect application credentials, authenticate the service they contact, and manage access as devices are enrolled, updated, or retired.
02 / The approach
The design uses an IoT SAFE-capable SIM or eSIM secure element as the application trust anchor. The network profile handles cellular access. Separate application credentials support authentication to the service, with middleware connecting the host application to protected cryptographic operations.
03 / Architecture
The eSIM network profile enables access to the mobile network.
IoT SAFE protects application credentials and cryptographic operations.
Separate attestation evaluates platform or software integrity.
Use the eSIM profile for network connectivity and IoT SAFE credentials for application authentication. A successful network attachment alone does not establish trust in an application or its software state.
Keep application private keys inside the supported secure element. The application runs its TLS stack on the host, while middleware requests signing and other supported cryptographic operations from the IoT SAFE applet.
Validate certificates on both sides and establish a mutually authenticated TLS connection. Exchange application data over that encrypted connection after the relevant identity and access checks succeed.
Enroll and provision devices, activate service, rotate credentials, and revoke application access when a device is retired or compromised. Coordinate application credentials and network subscription management as distinct operational workflows.
04 / Deployment considerations
Integration depends on a compatible SIM or eSIM, IoT SAFE applet, modem access, middleware, and certificate infrastructure. A testbed should verify provisioning, mutual authentication, credential rotation, revocation, and recovery. Device identity does not by itself attest the host software or protect plaintext after the host decrypts it.
Root application identity in protected hardware, manage it throughout the device lifecycle, and combine it with attestation and confidential processing where the deployment requires them.
Discuss your devices, network, and trust requirements with TeyzSec.