createManagerKey.go

/* 
Skills

Copyright (C) 2023 GérardMeunier

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program 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 General Public License  for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

package main

// Creates the key the manager must type when runSkillsC starts.

import (
	
	F	"path/filepath"
	M	"git.duniter.org/gerard94/util/misc"
	R	"git.duniter.org/gerard94/util/resources"
		"crypto/aes"
		"errors"
		"flag"
		"fmt"
		"encoding/hex"
		"os"
		"strings"
		"text/scanner"
		"crypto/sha256"

)

const (
	
	keySize = 256 / 8
	
	keyPath = "skillsclient/managerKey.txt"

)

var (
	
	keyP = R.FindDir(keyPath)
	
	privKey string
	masterKeyPath string
)

func getMasterKey (key *[]byte) bool {
	f, err := os.Open(masterKeyPath)
	if err != nil {
		fmt.Fprintln(os.Stderr, "Incorrect path to Master Key (mk)")
		return false
	}
	defer f.Close()
	s := new(scanner.Scanner)
	s.Init(f)
	s.Error = func(s *scanner.Scanner, msg string) {M.Halt(errors.New("File " + masterKeyPath + " incorrect"), 100)}
	s.Mode = scanner.ScanStrings
	s.Scan()
	ss := s.TokenText()
	M.Assert(ss[0] == '"' && ss[len(ss) - 1] == '"', ss, 101)
	k, err := hex.DecodeString(ss[1:len(ss) - 1]); M.Assert(err == nil, err, 102)
	M.Assert(len(k) == keySize, "key has wrong length:", k, 103)
	*key = k
	return true
}

func storeKeys (key1, key2 []byte, keyPath string) bool {