64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
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package main
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import (
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"bufio"
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"fmt"
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"strings"
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"github.com/spf13/cobra"
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"github.com/ethereum/go-ethereum/common/hexutil"
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ethcrypto "github.com/ethereum/go-ethereum/crypto"
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"github.com/cosmos/cosmos-sdk/client/input"
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clientkeys "github.com/cosmos/cosmos-sdk/client/keys"
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emintcrypto "github.com/cosmos/ethermint/crypto"
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)
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func exportEthKeyCommand() *cobra.Command {
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cmd := &cobra.Command{
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Use: "export-eth-key <name>",
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Short: "Export an Ethereum private key",
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Long: `Export an Ethereum private key unencrypted to use in dev tooling **UNSAFE**`,
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Args: cobra.ExactArgs(1),
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RunE: runExportCmd,
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}
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return cmd
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}
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func runExportCmd(cmd *cobra.Command, args []string) error {
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kb, err := clientkeys.NewKeyBaseFromHomeFlag()
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if err != nil {
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return err
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}
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// Get password from input or standard input
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buf := bufio.NewReader(cmd.InOrStdin())
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decryptPassword, err := input.GetPassword(
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"**WARNING this is an unsafe way to export your unencrypted private key**\nEnter key password:",
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buf)
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if err != nil {
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return err
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}
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// Exports private key from keybase using password
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privKey, err := kb.ExportPrivateKeyObject(args[0], decryptPassword)
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if err != nil {
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return err
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}
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// Converts key to Ethermint secp256 implementation
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emintKey, ok := privKey.(emintcrypto.PrivKeySecp256k1)
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if !ok {
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return fmt.Errorf("invalid private key type, must be Ethereum key: %T", privKey)
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}
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// Formats key for output
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privB := ethcrypto.FromECDSA(emintKey.ToECDSA())
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keyS := strings.ToUpper(hexutil.Encode(privB)[2:])
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fmt.Println(keyS)
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return nil
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}
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