State-of-the-Art Security with Industrial Raspberry Pi and Cryptographic Co-Processors
This is a proposal for achieving state-of-the-art security with the industrial Raspberry Pi and the ATECC608B encryption co-processor.
Introduction
In recent years, with the proliferation of IoT devices, security has become a growing concern in the industrial field. In particular, device authentication and data encryption are crucial to prevent unauthorized access and data leakage, and IIoT (Industrial IoT) applications and industrial networking are placing increasing demands on security and authentication. This proposal describes how to achieve state-of-the-art security by combining an industrial Raspberry Pi with the ATECC608B, a cryptographic co-processor with advanced security features.
Industrial Raspberry Pi and Encryption Co-Processor ATECC608B Overview
Industrial Raspberry Pi:
Robust, low-cost, high-performance single-board computer
Runs Linux and other operating systems and can run various applications
Via LAN, GPIO pins and USB interface Connectivity to external devices is possible via LAN, GPIO pins and USB interface
Pre-loaded option to mount ATECC608B security chip
Flexible expansion options such as SSD mounting via M2 slot or LTE communication board
Data back secondary memory mounting via micro SD
Cryptographic co-processor ATECC608B:
Secure elements from Microchip Technology
Supports public key cryptographic algorithms such as RSA-2048 and ECC-P256
Supports hash functions such as SHA-256
Features true random number generator
Secure key storage capabilities
Advantages of combining an industrial Raspberry Pi with an encryption co-processor:
Achieving a high level of security:
Hardware-level encryption process increases resistance to software attacks
Secure key storage capability reduces risk of private key compromise
Flexible system design:
Various security applications can be developed by combining with the wide variety of peripherals available for Raspberry Pi
Low cost:
Raspberry Pi and ATECC608B are relatively inexpensive, allowing you to build a security system with low cost
Possible security features
Device authentication:
Proves uniqueness of device using secret key stored in ATECC608B
Prevents unauthorized device entry
Data encryption:
Secure your data using the ATECC608B encryption feature
Encrypt data in transit and data on storage
Secure Boot:
Prevent firmware and OS tampering
Run only trusted software
True random number generation:
Generates the true random numbers needed to generate strong cryptographic keys
Secure key management:
Securely manage private keys using ATECC608B’s secure key storage feature
Minimize risk of key compromise
Implementation example
-Authentication of IoT devices:
Mount ATECC608B on IoT devices and mutually authenticate with server on Industrial Raspberry Pi side
Deny access from unauthorized devices
-Secure data logger:
Encrypt sensor data with ATECC608B and store on Raspberry Pi
Prevent data tampering Prevent
-Secure Network Gateway:
Monitor network traffic and detect unauthorized access
Establish VPN connection with ATECC608B
Summary
By combining the industrial Raspberry Pi with the ATECC608B, a system with advanced security features can be realized at low cost, and is expected to be applied not only to security measures for IoT devices, but also in a variety of other fields.
References
Microchip Technology ATECC608B Datasheet
Raspberry Pi Foundation Official Website
