public MainViewModel(ISettingsService settingsService, ILog log)
{
this.settingsService = settingsService ?? throw new ArgumentNullException(nameof(settingsService));
this.log = log ?? throw new ArgumentNullException(nameof(log));
string keySetting;
if (settingsService.TryGetSetting(keySettingId, out keySetting) &&
!string.IsNullOrWhiteSpace(keySetting))
{
key = keySetting;
}
else
{
AesParameters parameters = encryptor.GenerateAesParameters();
var keyBytes = parameters.Key;
key = Convert.ToBase64String(keyBytes);
settingsService.SetSetting(keySettingId, key);
settingsService.SetSetting(firstKeyId, key);
}
}
public void ShouldEncryptAndDecrypt()
{
var aesEncryptor = new AesEncryptor();
var stringGenerator = new StringGenerator();
for (int i = 0; i < 1000; i++)
{
string randomString = stringGenerator.CreateRandomString(random.Next(1, 30));
var parameters = aesEncryptor.GenerateAesParameters();
byte[] keyBytes = parameters.Key;
byte[] ivBytes = parameters.IV;
byte[] encryptedBytes = aesEncryptor.EncryptString(randomString, keyBytes, ivBytes);
Assert.IsNotNull(encryptedBytes);
string unencrypted = aesEncryptor.DecryptBytes(encryptedBytes, keyBytes, ivBytes);
Assert.AreEqual(randomString, unencrypted);
}
}
