private void PasswordAndUserEncryption(ref string user, ref string pass)
{
if (PasswordCheckBox.IsChecked ?? false)
{
try { // password encryption is over here.
var userToSave = CipherEncryptionHelper.CipherEncryption(
user,
SymmetricAlgorithmNames.AesCbcPkcs7,
out binaryStringEncoding,
out ibufferVector,
out cryptographicKey);
var passToSave = CipherEncryptionHelper.CipherEncryption(
pass,
SymmetricAlgorithmNames.AesCbcPkcs7,
out binaryStringEncoding,
out ibufferVector,
out cryptographicKey);
SettingsHelper.SaveSettingsValue(SettingsConstants.Password, passToSave.ToArray());
SettingsHelper.SaveSettingsValue(SettingsConstants.Email, userToSave.ToArray());
/// Changes For Windows Store
pass = Convert.ToBase64String(passToSave.ToArray()).Replace("/", "$");
user = Convert.ToBase64String(userToSave.ToArray()).Replace("/", "$");
///
} catch (Exception e) { // if any error throws, report in debug range and do nothing in the foreground.
Debug.WriteLine(e.StackTrace);
}
}
}
private void EncryptionFor(ref string old, ref string newPass, ref string confirm)
{
try { // password encryption is over here.
var userToTransmit = CipherEncryptionHelper.CipherEncryption(
old,
SymmetricAlgorithmNames.AesCbcPkcs7,
out binaryStringEncoding,
out ibufferVector,
out cryptographicKey);
var passToTransmit = CipherEncryptionHelper.CipherEncryption(
newPass,
SymmetricAlgorithmNames.AesCbcPkcs7,
out binaryStringEncoding,
out ibufferVector,
out cryptographicKey);
var confirmToTransmit = CipherEncryptionHelper.CipherEncryption(
confirm,
SymmetricAlgorithmNames.AesCbcPkcs7,
out binaryStringEncoding,
out ibufferVector,
out cryptographicKey);
/// Changes For Windows Store
newPass = Convert.ToBase64String(passToTransmit.ToArray()).Replace("/", "$");
old = Convert.ToBase64String(userToTransmit.ToArray()).Replace("/", "$");
confirm = Convert.ToBase64String(confirmToTransmit.ToArray()).Replace("/", "$");
///
} catch (Exception e) { // if any error throws, report in debug range and do nothing in the foreground.
Debug.WriteLine(e.StackTrace);
}
}
private void PasswordAndUserDecryption()
{
try { // password decryption over here.
SymmetricKeyAlgorithmProvider objAlg = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7);
cryptographicKey = objAlg.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(CipherEncryptionHelper.CollForKeyAndIv));
ibufferVector = CryptographicBuffer.CreateFromByteArray(CipherEncryptionHelper.CollForKeyAndIv);
var Password = SettingsHelper.ReadSettingsValue(SettingsConstants.Password) as byte[];
if (Password != null) // init ibuffer vector and cryptographic key for decryption.
{
PasswordBox.Password = CipherEncryptionHelper.CipherDecryption( // decryption the message.
SymmetricAlgorithmNames.AesCbcPkcs7,
CryptographicBuffer.CreateFromByteArray(Password),
ibufferVector,
BinaryStringEncoding.Utf8,
cryptographicKey);
}
var User = SettingsHelper.ReadSettingsValue(SettingsConstants.Email) as byte[];
if (User != null) // init ibuffer vector and cryptographic key for decryption.
{
EmailBox.Text = CipherEncryptionHelper.CipherDecryption( // decryption the message.
SymmetricAlgorithmNames.AesCbcPkcs7,
CryptographicBuffer.CreateFromByteArray(User),
ibufferVector,
BinaryStringEncoding.Utf8,
cryptographicKey);
}
} catch (Exception e) { // if any error throws, clear the password cache to prevent more errors.
Debug.WriteLine(e.StackTrace);
SettingsHelper.SaveSettingsValue(SettingsConstants.Password, null);
SettingsHelper.SaveSettingsValue(SettingsConstants.Email, null);
}
}
private string[] ForFetchTokenDecryption()
{
var stringColl = new string[2];
try { // password decryption over here.
SymmetricKeyAlgorithmProvider objAlg = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7);
cryptographicKey = objAlg.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(CipherEncryptionHelper.CollForKeyAndIv));
ibufferVector = CryptographicBuffer.CreateFromByteArray(CipherEncryptionHelper.CollForKeyAndIv);
if (SettingsHelper.ReadSettingsValue(SettingsConstants.Password) is byte[] Password) // init ibuffer vector and cryptographic key for decryption.
{
stringColl[1] = CipherEncryptionHelper.CipherDecryption( // decryption the message.
SymmetricAlgorithmNames.AesCbcPkcs7,
CryptographicBuffer.CreateFromByteArray(Password),
ibufferVector,
BinaryStringEncoding.Utf8,
cryptographicKey);
}
if (SettingsHelper.ReadSettingsValue(SettingsConstants.Email) is byte[] User) // init ibuffer vector and cryptographic key for decryption.
{
stringColl[0] = CipherEncryptionHelper.CipherDecryption( // decryption the message.
SymmetricAlgorithmNames.AesCbcPkcs7,
CryptographicBuffer.CreateFromByteArray(User),
ibufferVector,
BinaryStringEncoding.Utf8,
cryptographicKey);
}
return(stringColl);
} catch (Exception e) { // if any error throws, clear the password cache to prevent more errors.
Debug.WriteLine(e.StackTrace);
return(null);
}
}
