eSE100 – Secure Sensor-to-Ethernet Module, powered by MS500

The eSE100 (Secure Sensor-to-Ethernet module) provides a secured communication channel between sensors and any network servers. The module is powered by MS500, which is one of the most advanced security SoC's in the industry supporting the hardware-based security functions such as hardwired crypto engines, secure storage, and secure booting features. The module is pre-programmed with embedded SSL/TLS which is optimized to receive the full support from the MS500 hardware crypto engines.

Security Features

Secure Key Management

- Device Unique Key - Platform Key - User Defined Key - Session/App

Secure Boot – firmware Integrity checking

Secure Storage

PKI (Public Key Infrastructure) support

SSL/TLS socket connections

TLS 1.2 client and server mode

Module Dimension50 x 25 x 1.2 mm
Hardware PlatformMS500 for security W5500 for Ethernet TCP/IP
CPUARM Cortex M0 @ 100MHz
InterfaceUART, SPI, I2C, GPIO, Ethernet IO
Internal Flash Memory4 MB in MS500
PIN56 pins
Secure LibrarypbTLS by PointBlank
TLSTLS 1.2 or higher
Temperature-40 ~ 85 C
CertificatesCE and ROHS compliant
technical details

Hardware crypto engines

Symmetric Crypto engines

- AES 128/192/256 bits- ARIA 128/192/256 for government requirement

Asymmetric Crypto engines

- ECC up to 512 bit - RSA up to 2048 bit

Hash Accelerator – SHA1/SHA256 (50MB/sec)

TRNG –True Random Number Generator (25 Mbps)

HMAC (Hash-based MAC)

Authentication Algorithms  - AES GCM/GMAC - AES CCM/CBC-MAC

AES Encryption Mode: ECB, CBC, CTR

Module performance

  • RAM usage : 5KB at peak
  • Flash memory usage : 100KB for TLS
  • TLS setup time : 523ms (Client hello to handshake)
  • Act as server or client to any IP infrastructure
  • Pre-programmed with Firmware and Certificates
  • TLS is optimized for h/w accelerators in MS500
  • Customizations of services and SDK are available
  • Available for development including User Guide and related software tools


  • Smart metering
  • Lighting controls
  • Smart Factory automation
  • Secure sensor and actuators
how to use



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