github.com/core-coin/go-core/v2@v2.1.9/accounts/keystore/passphrase_test.go (about)

     1  // Copyright 2016 by the Authors
     2  // This file is part of the go-core library.
     3  //
     4  // The go-core library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-core library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-core library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package keystore
    18  
    19  import (
    20  	"io/ioutil"
    21  	"testing"
    22  
    23  	"github.com/core-coin/go-core/v2/common"
    24  )
    25  
    26  const (
    27  	veryLightScryptN = 2
    28  	veryLightScryptP = 1
    29  )
    30  
    31  // Tests that a json key file can be decrypted and encrypted in multiple rounds.
    32  func TestKeyEncryptDecrypt(t *testing.T) {
    33  	keyjson, err := ioutil.ReadFile("testdata/very-light-scrypt.json")
    34  	if err != nil {
    35  		t.Fatal(err)
    36  	}
    37  	password := "foobar"
    38  	address, err := common.HexToAddress("cb45f23d9ab6aefb2c22dfff511e29703435a3b50f50")
    39  	if err != nil {
    40  		t.Error(err)
    41  	}
    42  	// Do a few rounds of decryption and encryption
    43  	for i := 0; i < 3; i++ {
    44  		// Try a bad password first
    45  		if _, err := DecryptKey(keyjson, password+"bad"); err == nil {
    46  			t.Errorf("test %d: json key decrypted with bad password", i)
    47  		}
    48  		// Decrypt with the correct password
    49  		key, err := DecryptKey(keyjson, password)
    50  		if err != nil {
    51  			t.Fatalf("test %d: json key failed to decrypt: %v", i, err)
    52  		}
    53  		if key.Address != address {
    54  			t.Errorf("test %d: key address mismatch: have %x, want %x", i, key.Address, address)
    55  		}
    56  		// Recrypt with a new password and start over
    57  		password += "foobar2"
    58  		if keyjson, err = EncryptKey(key, password, veryLightScryptN, veryLightScryptP); err != nil {
    59  			t.Errorf("test %d: failed to recrypt key %v", i, err)
    60  		}
    61  	}
    62  }