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How to generate your fallback EOS key based on your Ethereum Private Key

Rohan AbrahamJun 2nd 2018

Who needs a fallback key?

Are you among the few people that did not register your EOS? or
Have you registered but the key was rejected?
In these two cases, the fallback mechanism will apply.
For the people who have registered correctly, these steps do not apply to you. You just have to use the Private Key associated with your EOS Public Key that you used for registration. To learn more about the fallback method or see how many people are affected go to the Register Your EOS page.

How do I generate my fallback key? Easy 2 minutes!

We use Scatter Desktop. Scatter Desktop that securely connects to the EOS network. It is built and maintained by trusted community developers, we let you do your due diligence on choosing a wallet.

Step 1: Go to https://eosauthority.com/setup/scatter
Step 2: Click on Install Scatter.
Step 3: Setup a Scatter password, identify, etc.
Step 4: Once you have Scatter setup, use the key pairs options, Add your Ethereum private key.
Step 5: Use Convert Blockchain option to change your Ethereum key into EOS key
Step 6: Try to send a transaction on chain on the link under Step 1. If that works, great!
Step 7: All done, what you see on screen is the EOS Private key for your fallback key

How do I get my ETH Private key?

To use the fallback you need to get hold of your Ethereum (ETH) Private key. An example of an Ethereum private key is e31d67e80a7d709baaef2d94cb520f2b90dc00ac4a09916fa4665712ba6ee179. An ETH Private key does not start with a 0x, it also should have fixed 64 characters. If you have an ETH Private key that looks the above, it should work correctly.

If you have a Trezor wallet and if your Ethereum Private key is in it, get your mnemonic words and you'll need to use a tool like https://iancoleman.io/bip39/ to generate your trezor's ethereum private key. If you have a Ledger wallet use the same link and use bip44. Be cautious and security aware when you do this (move funds to a new address first and at least go offline to use the tool). We don't endorse that tool. Essentially, you are trying to recreate your ETH Private key from the mnemonic phrases. Once you generate this, please remove the 0x before you put your Ethereum keys in scatter.

If you are on an Exodus wallet. This might help you find your private keys. https://support.exodus.io/article/86-how-can-i-view-my-private-keys

Is there an alternative to Fallback?

After nearly a year of writing this article, there is an alternative to the fallback process from May 2019. It is called the "Automated genesis lost key recovery process". Go to https://eosauthority.com/lostkey to check if you are eligible and to use the lost key process instead of Fallback.

How do I use my fallback key?

Your fallback key works as any other EOS key. It is unique to your ethereum wallet. Having a fallback key lets you use EOS exactly like everyone else that has any other EOS public and private key pair. You just had to go through an additional step of generating your EOS key pair from Ethereum.

After you generate your fallback key, go to https://eosauthority.com/vote and try to import your EOS account into Scatter. Video instructions are there as well. It will be a quick process as you already have Scatter installed. If the import works and you are able to complete the import, you have full access to the EOS on the mainnet.