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path: root/cmd/algokey/export.go
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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand.  If not, see <https://www.gnu.org/licenses/>.

package main

import (
	"fmt"

	"github.com/spf13/cobra"

	"github.com/algorand/go-algorand/crypto"
	"github.com/algorand/go-algorand/data/basics"
)

var exportKeyfile string
var exportPubkeyfile string

func init() {
	exportCmd.Flags().StringVarP(&exportKeyfile, "keyfile", "f", "", "Private key filename")
	exportCmd.Flags().StringVarP(&exportPubkeyfile, "pubkeyfile", "p", "", "Public key filename")
	exportCmd.MarkFlagRequired("keyfile")
}

var exportCmd = &cobra.Command{
	Use:   "export",
	Short: "Export key file to mnemonic and public key",
	Args:  cobra.NoArgs,
	Run: func(cmd *cobra.Command, _ []string) {
		seed := loadKeyfile(exportKeyfile)
		mnemonic := computeMnemonic(seed)

		key := crypto.GenerateSignatureSecrets(seed)
		publicKeyChecksummed := basics.Address(key.SignatureVerifier).String()

		fmt.Printf("Private key mnemonic: %s\n", mnemonic)
		fmt.Printf("Public key: %s\n", publicKeyChecksummed)

		if exportPubkeyfile != "" {
			writePublicKey(exportPubkeyfile, publicKeyChecksummed)
		}
	},
}