The iShield HSM is a plug-and-play USB security anchor that allows system integrators to upgrade existing AWS IoT Greengrass devices with a hardware security module, making it the perfect retrofit solution for finished hardware designs & in-field devices. iShield HSM securely stores the device’s private key and certificate so that they aren’t exposed or duplicated in software. The product is available as a high-quality, robust & compact USB memory stick, which supports PKCS#11 and PKCS#15 and is compatible with an open source software stack (e.g. OpenSC). A Secure Element (CC EAL6+) is embedded into iShield HSM’s hardware in COB (Chip-On Board) technology, making it tamper-proof and suited for harsh operating environments.
The iShield HSM is qualified for AWS IoT Greengrass Hardware Security Integration (HSI), providing a secure storage for keys and credentials used for device identification, authentication and registration.
iShield is the Swissbit product family brand for plug-and-play security products. Learn more.

Plug-and-Play: qualified for AWS IoT Greengrass
Flexibility: tamper-proof key storage for any IoT application
Durability: high quality, industrial grade USB memory stick with compact and robust metal housing
Security: Secure Element embedded in hardware (COB)
Security: Supports PKCS#11 / PKCS#15 (IsoApplet pre-loaded)
Compatibility: Compatible with OpenSC
Made in Germany
Key Features
Retrofit Hardware Security Module using standard USB interface
Secure & tamper-proof key storage for IoT applications
Supports PKCS#11 / PKCS#15 (IsoApplet pre-loaded)
Compatible with OpenSC
Qualified for AWS IoT Greengrass
High quality, industrial grade USB memory stick
Compact & robust metal housing
MLC NAND with durabit-feature for best-in-class endurance
Secure Element embedded in hardware (COB)
CC EAL 6+
RSA up to 2048 bit
ECC up to 384 bit
Target Group
Manufacturer of connected devices, e.g. gateways, controllers
System integrators for building and industrial automation
Key Benefits
Easy to retrofit
Easy to update & upgrade
Security "Made in Germany"
| PU-50n iShield HSM | |
|---|---|
| Series Name | PU-50n iShield HSM |
| Cryptographic Standard | Supports PKCS#11 / P |
| Secure Element | CC EAL 6+
RSA up to 2048 bit |
| Standards / Compliance | USB 3.1 Gen 1 SuperS |
| Density Range | 8 GB |
| Form Factor / Device Type | USB3.1 solid state f |
| Outline Dimensions (LxWxH) | |
| Data Transfer Mode | |
| Data Retention | 10 Years @ Life Begin
1 Year @ Life End |
| Operating Temperature (ambient) | Extended: -25 °C to 85 °C |
| Operating Voltage | 5.0 V ± 10% |
| Sequential Read (MB/s) | up to 100 MB/s |
| Sequential Write (MB/s) | up to 25 MB/s |
| Random 4KB Read (IOPS) | up to 2.500 |
| Random 4KB Write (IOPS) |
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