The Keystone hardware wallet is simply relaunched from the Cobo Vault branding so both the code base and infrastructure are almost the same. For more info please checkout here

Keystone is an air-gapped, open source hardware wallet that uses completely transparent QR code data transmissions. Visit the Keystone official website to learn more.

Keystone is built on a specialized security hardware platform with a Secure Element that currently runs on a highly secure and enhanced Android Go platform.

The user’s master seed is saved in the Secure Element and never leaves it. The Secure Element communicates with the hardware wallet application layer through a serial communication protocol. Users need to set a password before using Keystone, which can be used to unlock the device, sign transactions, or do other sensitive operations.

We use QR code data transmissions to air-gap. For details on the data protocol we use, please check here

current we are using the bc-ur for encoding data. for more info about the bc-ur, please check out the Blockchain Common Docs

UR:BYTES/HDTYCTLUAYAEAEAEAEAEAEAEVLHNBBVOYLGLPMDWDMSOTKGRGODEDWGETOGWGAMDNYSRSPSEDESSHSIMIEJTVSJZHNJTDETLSBSPTLSKSPSKWPBBVODWRTDETLRTSPSKWEPYJLIDPTPLJLAEFWFWYTBZAHONGAIYDMSWNLDSIYMEDSSWSEJTINHKPLGLMECFPTGLUESWGADAMERNFPRHMTTOINGACMCLDADSRNOLGLIHLNIYDAMNFEKBGLVWOLMNCLKBMDHYVYHKDTSORNMDFMBZYTTODTCKVYCLIHRHSWLDTAVAHKFGGLVYLDSOLPOLFMVWDSVACMLDMEOYPTMNFPYTMERHDSDTIHLDLYWLHYGLMNWYSKGABGLKCYBWZCLKLRVTGLKODPDMGLSNDNSOGSSFADAEJYLDJLCXSOAEAEAEASYTSKAS

we are working an demo of the animated QRCodes. once finished we will open it on our Github.

Please check this folder for intergation: Integration

hardware: check the hardware folders for our hardware documents. Currently our schematic and BOM files are open source.

applications: check the application folders to see our applications documents.

se: check the se folders to see our secure element documents.

The Keystone hardware wallet is simply relaunched from the Cobo Vault branding so both the code base and infrastructure are the same. For more information, Please see the Audit Report by PeckShield from mid 2020.

audit-report: check the audit-report folders for audit report documents.

Don't Trust Verify. Check our documentation to learn about how you can verify our firmware.

• Verify Application
• Verify Secure Element

1. How to decode the QRCode and verify the data in the QRCode ？

   For multi-coin firmware, we are using the proto-buffer to encode the transaction data or sync data. Really thanks @fnord123 build an great tool to others to decode the QRCodes. For details, please check out this repo: https://github.com/KeystoneHQ/KeystoneQRVerifier