Re: Celebrate Self Custody with Cypherock X1 50% Discount

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Thank you for being honest and answering all the questions.
I added your devices Cypherock X1 in my two topics for Open Source Hardware Wallets and Secure Element in Hardware Wallets.
I would suggest that you switch to new secure element ATECC608B as soon as possible, even if they say it's not critical issue.

Thank you! Will do.

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If I understand correctly, I can't generate my seed words offline (using dices for example) and import them in Cypherock X1 in any way?

You can do it externally if you want and import your own seed phrase in Cypherock X1, so you don't rely on the wallet's entropy for the private key generation.

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Maybe I want to use different wallet because I lost my Cypherock device, how can I use these cards with any other hardware or software wallets?

The cards are currently not compatible with any known wallets. However, you can communicate with the Javacards with your own Android, IOS or any other NFC enabled device. We plan to launch an open-source Android/IOS app as well that communicates with the cards. Here are the files - https://github.com/Cypherock/x1_wallet_firmware/blob/main/common/interfaces/card_interface/nfc.c, https://github.com/Cypherock/x1_wallet_firmware/blob/main/common/interfaces/card_interface/apdu.c

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Last thing I wanted to ask, is it possible to use Cypherock X1 with Electrum wallet or any other software wallet?

Not at the moment. We are building out our open-source SDK which should be out in January 2023 through which we will integrate with Electrum and other wallets.