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// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package keystore
import (
"io/ioutil"
"testing"
"github.com/ethereum/go-ethereum/common"
)
const (
veryLightScryptN = 2
veryLightScryptP = 1
)
// Tests that a json key file can be decrypted and encrypted in multiple rounds.
func TestKeyEncryptDecrypt(t *testing.T) {
keyjson, err := ioutil.ReadFile("testdata/very-light-scrypt.json")
if err != nil {
t.Fatal(err)
}
password := ""
address := common.HexToAddress("45dea0fb0bba44f4fcf290bba71fd57d7117cbb8")
// Do a few rounds of decryption and encryption
for i := 0; i < 3; i++ {
// Try a bad password first
if _, err := DecryptKey(keyjson, password+"bad"); err == nil {
t.Errorf("test %d: json key decrypted with bad password", i)
}
// Decrypt with the correct password
key, err := DecryptKey(keyjson, password)
if err != nil {
t.Fatalf("test %d: json key failed to decrypt: %v", i, err)
}
if key.Address != address {
t.Errorf("test %d: key address mismatch: have %x, want %x", i, key.Address, address)
}
// Recrypt with a new password and start over
password += "new data appended"
if keyjson, err = EncryptKey(key, password, veryLightScryptN, veryLightScryptP); err != nil {
t.Errorf("test %d: failed to recrypt key %v", i, err)
}
}
}
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