Changing the private key for an EOS account – cc32d9 – Medium

Changing the private key for an EOS account When interacting with EOS mainnet, especially at its early stage, you may suspect that your private key could be leaked. For example, you pasted it into a web application that you don’t fully trust. With the cleos command-line tool, you can easily change the private key for your account in a short time and at no cost. You would, however, need to compile it on your Linux machine using the build instructions. The operation is two-step, as you need to replace the owner and active key authorizations. Key access to an account is defined by its permissions (which we are going to modify with the below commands). # create a new keypaircleos create key # example the keys created:# Private key: 5HpyLPEY6RcCJMnwMyx5vtdYHk3FKxR5LS4W2nVzd3F3XFtjzNL# Public key: EOS6wNARDGZsgh1tC4eTsabxj65CU4xA4RdaQkrsBvneVCsJ924Zo # unlock your wallet and add the new private key. Add # space in front of the command, so that it does not # get saved in Bash history cleos wallet import 5HpyLPEY6RcCJMnwMyx5vtdYHk3FKxR5LS4W2nVzd3F3XFtjzNL # Now issue two transactions that modify the owner and # active keys: cleos -u https://eos.greymass.com/ set account permission MYACCOUNT owner EOS6wNARDGZsgh1tC4eTsabxj65CU4xA4RdaQkrsBvneVCsJ924Zo -p MYACCOUNT@owner cleos -u https://eos.greymass.com/ set account permission MYACCOUNT active EOS6wNARDGZsgh1tC4eTsabxj65CU4xA4RdaQkrsBvneVCsJ924Zo owner -p MYACCOUNT@owner Now you can save your new keys in a secure place and discard the old keys. You can also remove the old key from your wallet: cleos wallet remove_key OLDPUBKEY