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OneKey Hardware: Built-in Security

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The purpose of this article is to detail the hardware specifications of the OneKey Mini, Classic and Touch.

 

OneKey Mini

Housing, dimensions and materials

The OneKey Mini measures approximately 71 x 34 x 6.8 (mm) and weighs 15.6 g. The housing is made of professionally engineered reinforced plastic for durability. The case is assembled together using ultrasonic welding.

There are no attachment bolts, nails, welding materials or adhesives to hold the housing together.

 

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Connection

The OneKey Mini is a USB 2.0 and USB 3.0 compatible device. The device comes with a Type-C socket port on the bottom of the device.

Other communication methods, such as WiFi, Bluetooth, NFC, and even fingerprint readers, have been intentionally excluded to limit the possible attack surface.


Hardware Components

CPU
The OneKey Mini uses a 168 MHz ARM Cortex-M3 processor and custom software.

Screen
The use of a color TFT screen (128x128 pixels) on the OneKey Mini provides enough space to comfortably display transaction details, confirmation requests, warnings, and even simple images. The screen is an essential tool that allows users to reliably check the legitimacy of incoming data without having to trust the host device (i.e., computer or phone).

Buttons
OneKey Mini uses four buttons to receive confirmation from the user. The need for physical confirmation has been implemented to protect accounts from the vast majority of remote attacks.

mini.png


Operating conditions and maintenance

Operating Temperature
OneKey devices can operate reliably over a temperature range of -20°C to +60°C (-4°F to +140°F).

Do not attempt to force open or disassemble the enclosure. Do not expose your OneKey to extreme temperatures, fire, water, sand, steam, humidity or chemicals. The device is not waterproof or impenetrable.


Safety and Certifications
OneKey devices are CE and RoHS certified, so they meet all quality, reliability and environmental standards. x-rays will not harm your device, making it suitable for travel by air.

 

OneKey Classic

Housing, dimensions and materials

The OneKey Classic measures approximately 86 × 52 × 5.2 (mm) and weighs 20.5 g. The case is made of professionally engineered reinforced plastic for durability and is secured with a carabiner.

 

Connection

The OneKey Classic is a USB 2.0 and USB 3.0 compatible device. The device features a Type-C jack port on the bottom of the device. It also supports communication with the OneKey App via Bluetooth encrypted communication.


Hardware Components

CPU
The OneKey Classic uses a 168 MHz ARM Cortex-M3 processor and custom software.

Screen
The use of a monochrome OLED screen (128x64 pixels) on the OneKey Classic provides enough space to comfortably display transaction details, confirmation requests, warnings, and even simple images. The screen is an essential tool that allows users to reliably check the legitimacy of incoming data without having to trust the host device (i.e., computer or phone).

Buttons
OneKey Classic uses four buttons to receive confirmation from the user. The need for physical confirmation has been implemented to protect accounts from the vast majority of remote attacks.

classic.png


Operating conditions and maintenance

Operating Temperature
OneKey devices can operate reliably over a temperature range of -20°C to +60°C (-4°F to +140°F).

Do not attempt to force open or disassemble the enclosure. Do not expose your OneKey to extreme temperatures, fire, water, sand, steam, humidity or chemicals. The device is not waterproof or impenetrable.


Safety and Certifications
OneKey devices are CE and RoHS certified, so they meet all quality, reliability and environmental standards. x-rays will not harm your device, making it suitable for travel by air.

 

OneKey Touch

Housing, dimensions and materials

The OneKey Touch measures approximately 88.4 × 52.5 × 9.2 (mm) and weighs 75 grams. The case is made of aircraft aluminum and Unibody process for durability, and the back is made of high-end AG glass.


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The OneKey Touch is a USB 2.0 and USB 3.0 compatible device. The device uses a micro USB (Type C) socket port on the bottom of the device, and it also supports communication with the OneKey App via a Bluetooth encrypted channel.

 

Hardware Components

CPU
ARM Cortex-M7 processor @ 480 MHz with custom software

Screens used on the OneKey Touch
The LCD touch screen (480x800 pixels) provides enough space to comfortably display transaction details, confirmation requests, warnings, and even simple images. The screen is an essential tool that allows users to reliably check the legitimacy of incoming data without having to trust the host device (i.e., computer or phone).

The touch screen provides the user with ultimate control over the device. The need for physical confirmation has been implemented to protect accounts from the vast majority of remote attacks. Using the touchscreen is the only way to unlock the device, enter a PIN, restore an existing wallet, and confirm any other actions.

touch.png


Operating conditions and maintenance

Operating Temperature
OneKey devices can operate reliably over a temperature range of -20°C to +60°C (-4°F to +140°F).

Do not attempt to force open or disassemble the enclosure. Do not expose your OneKey device to extreme temperatures, fire, water, sand, steam, humidity, or chemicals. The device is not waterproof or impenetrable.

 

Open source hardware

The OneKey device hardware is open source and all open source code is available by visitinghere.

If you would like to build your own hardware wallet based on the OneKey code, feel free to submit an issue to our repository.

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