The CryptoShield is a dedicated security peripheral for the Arduino


This shield adds specialized ICs that will allow you to implement a hardware security layer to your Arduino project.


With the insecurity of connected devices called into question time and time again, wouldn’t it be nice to take comfort in knowing that your latest IoT gadget was secure? A facet in which many Makers may overlook, Josh Datko has made it his mission to find a better way to safeguard those designs — all without hindering the contagious and uplifting DIY spirit. You may recall his recent collaboration with SparkFun, the CrytpoCapewhich debuted last year. This cape was a dedicated security daughterboard for the BeagleBone that easily added encryption and authentication options to a project.

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Well now, Datko has returned with his latest and greatest innovation — the CryptoShield. Just like its cousin, the shield is a dedicated security peripheral, but for the highly-popualar Arduino platform instead. It adds specialized ICs that perform various cryptographic operations that will allow users to implement a hardware security layer to their Arduino project.

“It also is a nice device for those performing embedded security research. Needless to say this is a great product for those of you who are interested in computer security,” SparkFun notes.

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Each CryptoShield is packed with a slew of hardware on-board, including a real-time clock (RTC) module to keep accurate time, a Trusted Platform Module (AT97SC3204) for RSA encryption/decryption and signing in the hardware, an AES-128 encrypted EEPROM (ATAES132), an ATSHA204 authentication chip that performs SHA-256 and HMAC-256, and an ATECC108 that handles the Elliptic Curve Digital Signature Algorithm (ECDSA). Unlike its older cousin, though, the prototyping portion of this unit has been reduced. However, for what it may have lost, it has surely gained in other areas. For one, the CryptoShield now features an RFID socket that works best with a ID-12LA module.

“Each shield will need to have headers soldered on once you receive it. We prefer to give you the choice of soldering on stackable or non-stackable headers, whatever fits best for you project. The only other items you will need to get the CryptoCape fully functional are a dev board that supports the Arduino R3 form-factor and a CR1225 coin cell battery,” SparkFun adds.

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We should also point out that, at the moment, the CryptoShield can only be shipped within the United States. And just like with the CryptoCape, a portion of every sale is given back to SparkFun’s hacker-in-residence Josh Datko for continued development of new and exciting cryptographic tools, such as this one.

Intrigued? Hurry over to SparkFun’s official page here. We’ll have more insight from Datko himself in the coming days!

2 thoughts on “The CryptoShield is a dedicated security peripheral for the Arduino

  1. Pingback: The CryptoShield is a dedicated security peripheral for the Arduino - Internet of Things | Wearables | Smart Home | M2M

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