static void Main(string[] args)
{
var str = Encryptor.Encrypt("qwerty");
Console.WriteLine(str);
Console.WriteLine(Decryptor.Decrypt("BmwzQACRCmddGbSXdUJIGw=="));
}
public static ConnectionProperties GetConnectionProperties(IDictionary <string, string> propDictionary)
{
if (propDictionary == null)
{
throw new InvalidConnectionException("Connection Properties are NULL");
}
//capture props
var connectorProps = new ConnectionProperties();
connectorProps.BaseUrl = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.BaseUrl, ConnectionPropertyLabels.BaseUrl);
connectorProps.Username = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.Username, ConnectionPropertyLabels.Username);
connectorProps.Password = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.Password, ConnectionPropertyLabels.Password);
//tweak data coming in
connectorProps.Password = Decryptor.Decrypt_AesManaged(connectorProps.Password, Connector.CryptoKey);
if (connectorProps.BaseUrl.ToString().EndsWith("/"))
{
connectorProps.BaseUrl = connectorProps.BaseUrl.Remove(connectorProps.BaseUrl.Length - 1);
}
// re-check unencrypted password
if (string.IsNullOrEmpty(connectorProps.Password))
{
throw new InvalidConnectionException(string.Format("A value is required for '{0}'", ConnectionPropertyLabels.Password));
}
return(connectorProps);
}
public string GetDecryptData(string Message)
{
try
{
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
byte[] TDESKey;
TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider();
byte[] DataToDecrypt;
ICryptoTransform Decryptor;
TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(passphrase));
TDESAlgorithm.Key = TDESKey;
TDESAlgorithm.Mode = CipherMode.ECB;
TDESAlgorithm.Padding = PaddingMode.PKCS7;
DataToDecrypt = Convert.FromBase64String(Message);
try
{
Decryptor = TDESAlgorithm.CreateDecryptor();
DeResults = null;
DeResults = Decryptor.TransformFinalBlock(DataToDecrypt, 0, DataToDecrypt.Length);
}
catch (Exception)
{
TDESAlgorithm.Clear();
HashProvider.Clear();
}
return(UTF8.GetString(DeResults));
}
catch (Exception)
{
return("F");
}
}
public ActionResult Register(User user)
{
if (ModelState.IsValid)
{
var encrypt = Encryptor.Encrypt(user.Password);
user.Password = encrypt;
var db = new UserDAO();
var dao = db.Create(user);
if (dao == 1)
{
//nếu đăng kí thành công thì sẽ tự động đăg nhập
TempData["Success"] = "Thêm tài khoản thành công";
Login(user.Username, Decryptor.Decrypt(user.Password)); //gọi hàm login
return(RedirectToAction("Index", "Home"));
}
else if (dao == 0)
{
TempData["Error"] = "Email này đã tồn tại";
return(View());
}
else if (dao == -1)
{
TempData["Error"] = "Tài khoản này đã tồn tại";
return(View("Register"));
}
else
{
ModelState.AddModelError("", "Thêm tài khoản thất bại");
}
}
return(View());
}
public void GetFirstNumberNotEqualToNPrecedentTest()
{
var strings = File.ReadLines(Program.InputTxt);
var decryptor = new Decryptor(strings);
decryptor.GetFirstNumberNotEqualToNPrecedent(25).Should().Be(167829540);
}
private string InternalDecrypt(byte[] encryptedBytes)
{
byte[] decrypted = null;
decrypted = Decryptor.TransformFinalBlock(encryptedBytes, 0, encryptedBytes.Length);
return(Encoding.ASCII.GetString(decrypted));
}
public void Decrypt_EncyptedByteArrayFromFCMService_ShouldSuccessfullyDecrypt()
{
// use this captured data for debugging
////// generated on the client - ECDH with curve prime256v1//////
// random bytes
var authSecret = new byte[] { 5, 47, 48, 155, 244, 31, 204, 235, 11, 247, 67, 120, 24, 137, 25, 153 };
//// public key sent to the server
var receiverPublicKeyBytes = new byte[] { 4, 234, 243, 178, 1, 91, 224, 122, 211, 185, 63, 90, 135, 90, 206, 224, 43, 63, 63, 131, 227, 22, 157, 108, 31, 176, 83, 27, 70, 246, 89, 112, 7, 102, 79, 42, 205, 17, 100, 100, 149, 198, 135, 95, 241, 189, 182, 61, 103, 161, 4, 244, 127, 185, 128, 18, 139, 78, 3, 169, 111, 218, 80, 73, 55 };
//// private key kept on the client
var privateKey = new byte[] { 250, 117, 42, 156, 20, 153, 20, 193, 233, 136, 185, 246, 56, 52, 250, 150, 120, 250, 72, 147, 182, 144, 120, 103, 76, 11, 175, 143, 92, 1, 177, 59 };
//// received from the server
var salt = new byte[] { 248, 70, 134, 75, 160, 188, 58, 83, 105, 238, 59, 171, 27, 115, 224, 200 };
//// server public key
var senderPublicKeyBytes = new byte[] { 4, 26, 9, 166, 16, 222, 177, 154, 230, 15, 231, 11, 89, 108, 66, 97, 247, 3, 158, 199, 93, 98, 187, 162, 175, 76, 127, 2, 149, 67, 13, 195, 26, 145, 46, 223, 4, 34, 46, 70, 57, 0, 98, 139, 79, 25, 84, 187, 176, 126, 50, 108, 192, 61, 207, 83, 248, 189, 14, 10, 182, 18, 141, 52, 92 };
//// actual data that needs decoding
var rawData = new byte[] { 127, 5, 92, 210, 222, 94, 48, 180, 122, 71, 186, 120, 91, 171, 10, 6, 14, 182, 145, 108, 136, 161, 172, 8, 67, 27, 136, 55, 6, 224, 180, 181, 141, 242, 21, 101, 235, 6, 125, 162, 97, 236, 49, 150, 61, 225, 130, 58, 57, 93, 37, 79, 208, 21, 8, 139, 72, 235, 12, 173, 50 };
var decryptor = new Decryptor(privateKey, receiverPublicKeyBytes, authSecret);
var decryptedBytes = decryptor.Decrypt(rawData, senderPublicKeyBytes, salt);
var result = Encoding.UTF8.GetString(decryptedBytes);
Assert.AreEqual("{\"from\":\"550920961559\",\"priority\":\"normal\"}", result);
}
public void DecryptsToOriginalPlainText()
{
byte[] plaintextBytes = Encoding.UTF8.GetBytes("This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least. This is a test! It needs to be 128 characters long at least.");
byte[] decryptedBytes;
using (SymmetricAlgorithm algorithm = new AesManaged())
{
byte[] wrongDecryptionKey = algorithm.Key;
algorithm.GenerateKey();
byte[] encryptionKey = algorithm.Key;
Assert.AreNotEqual(encryptionKey, wrongDecryptionKey);
byte[] ciphertextBytes, iv;
using (Encryptor encryptor = algorithm.CreateEncryptor(encryptionKey, out iv))
{
Assert.AreEqual(encryptionKey, encryptor.Algorithm.Key);
Assert.AreEqual(iv, encryptor.Algorithm.IV);
ciphertextBytes = encryptor.Encrypt(plaintextBytes);
}
using (Decryptor decryptor = new Decryptor(algorithm, encryptionKey, iv, Encryption.DefaultOptions))
{
Assert.AreEqual(encryptionKey, decryptor.Algorithm.Key);
Assert.AreEqual(iv, decryptor.Algorithm.IV);
decryptedBytes = decryptor.Decrypt(ciphertextBytes);
}
}
Assert.AreEqual(plaintextBytes, decryptedBytes);
}
/// <summary>
/// Decryptor
///
/// <param name="text">Base64 string to be decrypted
/// <returns>
public string Decrypt(string text)
{
try
{
if (string.IsNullOrEmpty(text))
{
return(null);
}
//text = text.Replace(" ", "");
byte[] input = Convert.FromBase64String(text);
var newClearData = Decryptor.TransformFinalBlock(input, 0, input.Length);
return(Encoding.ASCII.GetString(newClearData));
}
catch (ArgumentException ae)
{
Console.WriteLine("inputCount uses an invalid value or inputBuffer has an invalid offset length. " + ae);
return(null);
}
catch (ObjectDisposedException oe)
{
Console.WriteLine("The object has already been disposed." + oe);
return(null);
}
}
/// <summary>
/// Decrypts a string.
/// </summary>
/// <param name="Text">The encrypted string to be decrypted.</param>
/// <param name="Key">The 8-bit string for decryption.</param>
/// <returns>The plain text.</returns>
public string Decrypt(string Text, string Key)
{
if(Key.Length != 8)
throw new Exception("Key must be a 8-bit string!");
byte[] IV = null;
byte[] cipherText = null;
byte[] key = null;
byte[] plainText = null;
try
{
Decryptor dec = new Decryptor(EncryptionAlgorithm.Des);
IV = Encoding.ASCII.GetBytes("init vec"); // "init vec is big."
dec.IV = IV;
key = Encoding.ASCII.GetBytes(Key);
cipherText = Convert.FromBase64String(Text);
plainText = dec.Decrypt(cipherText, key);
}
catch(Exception ex)
{
throw new Exception("Exception while decrypting. " + ex.Message);
}
return Encoding.ASCII.GetString(plainText);
}
public ActionResult ChangePassword(UserModel userModel)
{
UserDAO db = new UserDAO();
if (ModelState.IsValid)
{
var user = db.GetUserString(userModel.Username);
if (user != null)
{
if (Decryptor.Decrypt(user.Password) == userModel.Password) //nếu đúng pass của tài khoản mới cập nhập
{
db.UpdatePass(user.Email, Encryptor.Encrypt(userModel.NewPassword)); //Hàm cập nhập mật khẩu
TempData["Success"] = "Đổi mật khẩu thành công";
return(RedirectToAction("Index", "Home"));
}
else
{
TempData["Error"] = "Mật khẩu cũ không tồn tại";
return(View());
}
}
}
TempData["Error"] = "Đổi mật khẩu thất bại";
return(View());
}
/// <summary>
/// Constructor for MainWindow
/// </summary>
public MainWindow()
{
// Initialize in background thread
Task.Run(() =>
{
KeyGenerator keygen = new KeyGenerator(GlobalProperties.Context);
encryptor_ = new Encryptor(GlobalProperties.Context, keygen.PublicKey);
decryptor_ = new Decryptor(GlobalProperties.Context, keygen.SecretKey);
encoder_ = new BatchEncoder(GlobalProperties.Context);
rlk_ = keygen.RelinKeys(decompositionBitCount: GlobalProperties.RelinKeysDBC);
List <int> rotCounts = new List <int>();
for (int i = (int)encoder_.SlotCount / GlobalProperties.MatrixSizeMax; i < (int)encoder_.SlotCount / 2; i *= 2)
{
rotCounts.Add(i);
}
rotCounts.Add(0);
galk_ = keygen.GaloisKeys(decompositionBitCount: GlobalProperties.GaloisKeysDBC, steps: rotCounts);
// Choose the Session ID
RandomizeSID();
});
InitializeComponent();
}
internal static byte[] DecryptByKey(byte[] encryptedPassword, byte[] initializationVector, byte[] passwordKey)
{
var dec = new Decryptor(ENCRYPTION_ALGORITHM);
dec.IV = initializationVector;
return(dec.Decrypt(encryptedPassword, passwordKey));
}
private string DecryptSignature(string js, string signature)
{
var functionLines = GetDecryptionFunctionLines(js);
var decryptor = new Decryptor();
foreach (var functionLine in functionLines)
{
if (decryptor.IsComplete)
{
break;
}
var match = FunctionRegex.Match(functionLine);
if (match.Success)
{
decryptor.AddFunction(js, match.Groups[1].Value);
}
}
foreach (var functionLine in functionLines)
{
var match = FunctionRegex.Match(functionLine);
if (match.Success)
{
signature = decryptor.ExecuteFunction(signature, functionLine, match.Groups[1].Value);
}
}
return(signature);
}
/// <summary>Return decryptor to pool</summary>
private void ReturnDecryptor(Decryptor decryptor)
{
if (decryptor != null)
{
decryptorPool.AddItem(decryptor);
}
}
public string Decrypt(string Parameter)
{
Decryptor Decry = new Decryptor(EncryptionAlgorithm.TripleDes);
Decry.IV = Encoding.ASCII.GetBytes("t3ilc0m3");
return(Decry.Decrypt(Parameter, "3wmotherwdrtybnio12ewq23"));
}
public void TestAgileEncryptionModes()
{
int maxKeyLen = Cipher.GetMaxAllowedKeyLength(ca.jceId);
Assume.That(maxKeyLen >= ca.defaultKeySize, "Please install JCE Unlimited Strength Jurisdiction Policy files");
MemoryStream bos = new MemoryStream();
POIFSFileSystem fsEnc = new POIFSFileSystem();
EncryptionInfo infoEnc = new EncryptionInfo(EncryptionMode.Agile, ca, ha, -1, -1, cm);
Encryptor enc = infoEnc.Encryptor;
enc.ConfirmPassword("foobaa");
Stream os = enc.GetDataStream(fsEnc);
os.Write(testData, 0, testData.Length);
os.Close();
//bos.Reset();
bos.Seek(0, SeekOrigin.Begin);
fsEnc.WriteFileSystem(bos);
POIFSFileSystem fsDec = new POIFSFileSystem(new MemoryStream(bos.ToArray()));
EncryptionInfo infoDec = new EncryptionInfo(fsDec);
Decryptor dec = infoDec.Decryptor;
bool passed = dec.VerifyPassword("foobaa");
Assert.IsTrue(passed);
Stream is1 = dec.GetDataStream(fsDec);
byte[] actualData = IOUtils.ToByteArray(is1);
is1.Close();
//assertThat("Failed roundtrip - " + ca + "-" + ha + "-" + cm, testData, EqualTo(actualData));
Assert.That(testData, Is.EqualTo(actualData), "Failed roundtrip - " + ca + "-" + ha + "-" + cm);
}
/// <summary>Calculate the counter and iv, update the decryptor.</summary>
/// <exception cref="System.IO.IOException"/>
private void UpdateDecryptor(Decryptor decryptor, long position, byte[] iv)
{
long counter = GetCounter(position);
codec.CalculateIV(initIV, counter, iv);
decryptor.Init(key, iv);
}
public void InPlaceReWrite()
{
FileInfo f = TempFile.CreateTempFile("protected_agile", ".docx");
// File f = new File("protected_agile.docx");
FileStream fos = f.Create();
Stream fis = POIDataSamples.GetPOIFSInstance().OpenResourceAsStream("protected_agile.docx");
IOUtils.Copy(fis, fos);
fis.Close();
fos.Close();
NPOIFSFileSystem fs = new NPOIFSFileSystem(f, false);
// decrypt the protected file - in this case it was encrypted with the default password
EncryptionInfo encInfo = new EncryptionInfo(fs);
Decryptor d = encInfo.Decryptor;
bool b = d.VerifyPassword(Decryptor.DEFAULT_PASSWORD);
Assert.IsTrue(b);
// do some strange things with it ;)
XWPFDocument docx = new XWPFDocument(d.GetDataStream(fs));
docx.GetParagraphArray(0).InsertNewRun(0).SetText("POI was here! All your base are belong to us!");
docx.GetParagraphArray(0).InsertNewRun(1).AddBreak();
// and encrypt it again
Encryptor e = encInfo.Encryptor;
e.ConfirmPassword("AYBABTU");
docx.Write(e.GetDataStream(fs));
fs.Close();
}
// Get cookies from gecko browser
public static List <Site> Get(string BrowserDir)
{
List <Site> scHistory = new List <Site>();
// Get firefox default profile directory
string profile = Profile.GetProfile(BrowserDir);
// Read cookies from file
if (profile == null)
{
return(scHistory);
}
string db_location = Path.Combine(profile, "places.sqlite");
// Read data from table
SQLite sSQLite = SQLite.ReadTable(db_location, "moz_places");
if (sSQLite == null)
{
return(scHistory);
}
// Get values from table
for (int i = 0; i < sSQLite.GetRowCount(); i++)
{
Site sSite = new Site();
sSite.sUrl = Decryptor.GetUTF8(sSQLite.GetValue(i, 1));
sSite.sTitle = Decryptor.GetUTF8(sSQLite.GetValue(i, 2));
sSite.iCount = Convert.ToInt32(sSQLite.GetValue(i, 4)) + 1;
if (sSite.sTitle != "0")
{
scHistory.Add(sSite);
}
}
return(scHistory);
}
private bool TryFindEristaKeyRevision()
{
// Package1 has no indication of which key it's encrypted with,
// so we must test each known key to find one that works
var decHeader = new Package1Pk11Header();
int start = IsModern ? 6 : 0;
int end = IsModern ? 0x20 : 6;
Decryptor decryptor = IsModern ? Crypto.Aes.DecryptCbc128 : (Decryptor)Crypto.Aes.DecryptCtr128;
for (int i = start; i < end; i++)
{
decryptor(SpanHelpers.AsByteSpan(ref _pk11Header), SpanHelpers.AsByteSpan(ref decHeader),
KeySet.Package1Keys[i], _stage1Footer.Iv);
if (decHeader.Magic == Package1Pk11Header.ExpectedMagic)
{
KeyRevision = (byte)i;
_pk11Header = decHeader;
return(true);
}
}
return(false);
}
public void Create2Test()
{
SEALContext context = GlobalContext.BFVContext;
KeyGenerator keygen1 = new KeyGenerator(context);
keygen1.CreatePublicKey(out PublicKey publicKey);
Encryptor encryptor1 = new Encryptor(context, publicKey);
Decryptor decryptor1 = new Decryptor(context, keygen1.SecretKey);
Ciphertext cipher = new Ciphertext();
Plaintext plain = new Plaintext("2x^1 + 5");
Plaintext plain2 = new Plaintext();
encryptor1.Encrypt(plain, cipher);
decryptor1.Decrypt(cipher, plain2);
Assert.AreNotSame(plain, plain2);
Assert.AreEqual(plain, plain2);
KeyGenerator keygen2 = new KeyGenerator(context, keygen1.SecretKey);
keygen2.CreatePublicKey(out publicKey);
Encryptor encryptor2 = new Encryptor(context, publicKey);
Decryptor decryptor2 = new Decryptor(context, keygen2.SecretKey);
Plaintext plain3 = new Plaintext();
decryptor2.Decrypt(cipher, plain3);
Assert.AreNotSame(plain, plain3);
Assert.AreEqual(plain, plain3);
}
private void performDecryptionTest(string functionName, string encrypted, string expected, string password)
{
Decryptor cryptor = new Decryptor();
string decrypted = cryptor.Decrypt(encrypted, password);
this.reportSuccess(functionName, decrypted == expected);
}
private void testDecryptingWithBadPasswordFails()
{
Decryptor cryptor = new Decryptor();
string decrypted = cryptor.Decrypt(TestStrings.IOS_ENCRYPTED_V2_NON_BLOCK_INTERVAL, "bad-password");
this.reportSuccess(MethodBase.GetCurrentMethod().Name, decrypted == "");
}
private string DecryptSignature(string js, string signature)
{
var functionLines = GetDecryptionFunctionLines(js);
var decryptor = new Decryptor();
foreach (var functionLine in functionLines)
{
if (decryptor.IsComplete)
{
break;
}
/* Pass TK["do"](a, 36); or TK.BH(a, 1); */
var match = FunctionRegex.Match(functionLine.Replace("[\"", ".").Replace("\"]", ""));
if (match.Success)
{
decryptor.AddFunction(js, match.Groups[1].Value);
}
}
foreach (var functionLine in functionLines)
{
var match = FunctionRegex.Match(functionLine.Replace("[\"", ".").Replace("\"]", ""));
if (match.Success)
{
signature = decryptor.ExecuteFunction(signature, functionLine, match.Groups[1].Value);
}
}
return(signature);
}
public void Connect(IDictionary <string, string> propDictionary)
{
if (propDictionary == null)
{
throw new InvalidConnectionException("Connection Properties are NULL");
}
//capture properties from form
var connectorProps = new ConnectionProperties();
connectorProps.BaseUrl = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.BaseUrl, ConnectionPropertyLabels.BaseUrl);
connectorProps.Username = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.Username, ConnectionPropertyLabels.Username);
connectorProps.Password = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.Password, ConnectionPropertyLabels.Password);
connectorProps.CustomerId = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.CustomerId, ConnectionPropertyLabels.CustomderId);
connectorProps.HMAC = getRequiredPropertyValue(propDictionary, ConnectionPropertyKeys.HMAC, ConnectionPropertyLabels.HMAC);
//remove extra slash for consistency
if (connectorProps.BaseUrl.ToString().EndsWith("/"))
{
connectorProps.BaseUrl = connectorProps.BaseUrl.Remove(connectorProps.BaseUrl.Length - 1);
}
//decrypt password value for later
connectorProps.Password = Decryptor.Decrypt_AesManaged(connectorProps.Password, Connector.CryptoKey);
// re-check unencrypted password
if (string.IsNullOrEmpty(connectorProps.Password))
{
throw new InvalidConnectionException(string.Format("A value is required for '{0}'", ConnectionPropertyLabels.Password));
}
properties = connectorProps;
reflector = new Reflector(Assembly.GetExecutingAssembly());
IsConnected = true;
}
static public List <List <long> > decryptValues(List <List <Ciphertext> > weihtedSums, SecretKey sk, SEALContext context)
{
List <List <long> > results = new List <List <long> >();
Decryptor decryptor = new Decryptor(context, sk);
IntegerEncoder encoder = new IntegerEncoder(context);
int sample_ind = 0;
foreach (List <Ciphertext> sample in weihtedSums)
{
List <long> resultsRow = new List <long>();
foreach (Ciphertext encryptedClassScore in sample)
{
Plaintext plainClassScore = new Plaintext();
if (decryptor.InvariantNoiseBudget(encryptedClassScore) == 0)
{
throw new Exception("Noise budget depleated in sample " + sample_ind + ". Aborting...");
}
decryptor.Decrypt(encryptedClassScore, plainClassScore);
long ClassScore = encoder.DecodeInt64(plainClassScore) / (1000 * 1000);
resultsRow.Add(ClassScore);
}
results.Add(resultsRow);
sample_ind++;
}
return(results);
}
/// <summary>Decrypt length bytes in buffer starting at offset.</summary>
/// <remarks>
/// Decrypt length bytes in buffer starting at offset. Output is also put
/// into buffer starting at offset. It is thread-safe.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
private void Decrypt(long position, byte[] buffer, int offset, int length)
{
ByteBuffer inBuffer = GetBuffer();
ByteBuffer outBuffer = GetBuffer();
Decryptor decryptor = null;
try
{
decryptor = GetDecryptor();
byte[] iv = initIV.MemberwiseClone();
UpdateDecryptor(decryptor, position, iv);
byte padding = GetPadding(position);
inBuffer.Position(padding);
// Set proper position for input data.
int n = 0;
while (n < length)
{
int toDecrypt = Math.Min(length - n, inBuffer.Remaining());
inBuffer.Put(buffer, offset + n, toDecrypt);
// Do decryption
Decrypt(decryptor, inBuffer, outBuffer, padding);
outBuffer.Get(buffer, offset + n, toDecrypt);
n += toDecrypt;
padding = AfterDecryption(decryptor, inBuffer, position + n, iv);
}
}
finally
{
ReturnBuffer(inBuffer);
ReturnBuffer(outBuffer);
ReturnDecryptor(decryptor);
}
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="GeneralSecurityException"/>
public virtual KeyProvider.KeyVersion DecryptEncryptedKey(KeyProviderCryptoExtension.EncryptedKeyVersion
encryptedKeyVersion)
{
// Fetch the encryption key material
string encryptionKeyVersionName = encryptedKeyVersion.GetEncryptionKeyVersionName
();
KeyProvider.KeyVersion encryptionKey = keyProvider.GetKeyVersion(encryptionKeyVersionName
);
Preconditions.CheckNotNull(encryptionKey, "KeyVersion name '%s' does not exist",
encryptionKeyVersionName);
Preconditions.CheckArgument(encryptedKeyVersion.GetEncryptedKeyVersion().GetVersionName
().Equals(KeyProviderCryptoExtension.Eek), "encryptedKey version name must be '%s', is '%s'"
, KeyProviderCryptoExtension.Eek, encryptedKeyVersion.GetEncryptedKeyVersion().GetVersionName
());
// Encryption key IV is determined from encrypted key's IV
byte[] encryptionIV = KeyProviderCryptoExtension.EncryptedKeyVersion.DeriveIV(encryptedKeyVersion
.GetEncryptedKeyIv());
CryptoCodec cc = CryptoCodec.GetInstance(keyProvider.GetConf());
Decryptor decryptor = cc.CreateDecryptor();
decryptor.Init(encryptionKey.GetMaterial(), encryptionIV);
KeyProvider.KeyVersion encryptedKV = encryptedKeyVersion.GetEncryptedKeyVersion();
int keyLen = encryptedKV.GetMaterial().Length;
ByteBuffer bbIn = ByteBuffer.AllocateDirect(keyLen);
ByteBuffer bbOut = ByteBuffer.AllocateDirect(keyLen);
bbIn.Put(encryptedKV.GetMaterial());
bbIn.Flip();
decryptor.Decrypt(bbIn, bbOut);
bbOut.Flip();
byte[] decryptedKey = new byte[keyLen];
bbOut.Get(decryptedKey);
return(new KeyProvider.KeyVersion(encryptionKey.GetName(), Ek, decryptedKey));
}
// Get cookies from gecko browser
public static List <Bookmark> Get(string BrowserDir)
{
List <Bookmark> scBookmark = new List <Bookmark>();
// Get firefox default profile directory
string profile = Profile.GetProfile(BrowserDir);
// Read cookies from file
if (profile == null)
{
return(scBookmark);
}
string db_location = Path.Combine(profile, "places.sqlite");
// Read data from table
SQLite sSQLite = SQLite.ReadTable(db_location, "moz_bookmarks");
if (sSQLite == null)
{
return(scBookmark);
}
// Get values from table
for (int i = 0; i < sSQLite.GetRowCount(); i++)
{
Bookmark bBookmark = new Bookmark();
bBookmark.sTitle = Decryptor.GetUTF8(sSQLite.GetValue(i, 5));
if (Decryptor.GetUTF8(sSQLite.GetValue(i, 1)).Equals("0") && bBookmark.sTitle != "0")
{
scBookmark.Add(bBookmark);
}
}
return(scBookmark);
}
public ResultHandler(Decryptor decryptor, ILogger <ResultHandler> logger, BlobFileService blobFileService, IConfiguration configuration)
{
_decryptor = decryptor;
_logger = logger;
_blobFileService = blobFileService;
_configuration = configuration;
}
public bool IsIn(Position searchPosition)
{
var encoded = GetEncodedPosition(searchPosition);
var evaluator = new Evaluator(GetContext());
PositionEncrypted positionEncrypted = GetFromIota();
evaluator.SubPlain(positionEncrypted.Lon, encoded.Lon);
evaluator.SubPlain(positionEncrypted.Lat, encoded.Lat);
var decryptor = new Decryptor(GetContext(), GetSecretKey());
Plaintext plainResultLon = new Plaintext();
Plaintext plainResultLat = new Plaintext();
decryptor.Decrypt(positionEncrypted.Lon, plainResultLon);
decryptor.Decrypt(positionEncrypted.Lat, plainResultLat);
var encoder = GetEncoder(GetContext());
double resultLon = encoder.Decode(plainResultLon);
double resultLat = encoder.Decode(plainResultLat);
var diff = Math.Abs(resultLon) + Math.Abs(resultLat);
if (diff < 0.007)
{
return(true);
}
return(false);
}
private void performDecryptionTest(string functionName, string encrypted, string expected, string password)
{
Decryptor cryptor = new Decryptor();
string decrypted = cryptor.Decrypt(encrypted, password);
this.reportSuccess(functionName, decrypted == expected);
}
protected override void Context()
{
base.Context();
TestType = new SaltedEncryptedString();
Decryptor = new CryptographyFactory().CreateDecryptor();
CurrentSession.Save(UnpersistedEntity);
}
public void CausesDecryptionToReturnNonsense()
{
byte[] plaintextBytes = Encoding.UTF8.GetBytes("This is a test!");
byte[] decryptedBytes, decryptedBytesFromWrongKey = null;
using (SymmetricAlgorithm algorithm = new AesManaged())
{
byte[] wrongDecryptionKey = algorithm.Key;
algorithm.GenerateKey();
byte[] encryptionKey = algorithm.Key;
Assert.AreNotEqual(encryptionKey, wrongDecryptionKey);
byte[] ciphertextBytes, iv;
using (Encryptor encryptor = algorithm.CreateEncryptor(encryptionKey, out iv))
{
Assert.AreEqual(encryptionKey, encryptor.Algorithm.Key);
Assert.AreEqual(iv, encryptor.Algorithm.IV);
ciphertextBytes = encryptor.Encrypt(plaintextBytes);
}
using (Decryptor decryptorWithWrongKey = new Decryptor(algorithm, wrongDecryptionKey, iv, Encryption.DefaultOptions))
{
Assert.AreEqual(wrongDecryptionKey, decryptorWithWrongKey.Algorithm.Key);
Assert.AreEqual(iv, decryptorWithWrongKey.Algorithm.IV);
try
{
decryptedBytesFromWrongKey = decryptorWithWrongKey.Decrypt(ciphertextBytes);
}
catch (CryptographicException e)
{
// "Padding is invalid and cannot be removed."
Assert.IsNull(decryptedBytesFromWrongKey);
Console.WriteLine(e.Message);
}
}
using (Decryptor decryptor = new Decryptor(algorithm, encryptionKey, iv, Encryption.DefaultOptions))
{
Assert.AreEqual(encryptionKey, decryptor.Algorithm.Key);
Assert.AreEqual(iv, decryptor.Algorithm.IV);
decryptedBytes = decryptor.Decrypt(ciphertextBytes);
}
}
Assert.AreNotEqual(decryptedBytes, decryptedBytesFromWrongKey);
Assert.AreEqual(plaintextBytes, decryptedBytes);
}
private void performSymmetricTest(string functionName, string plaintext, string password)
{
Encryptor encryptor = new Encryptor();
string encryptedB64 = encryptor.Encrypt(plaintext, password);
Decryptor decryptor = new Decryptor();
string decrypted = decryptor.Decrypt(encryptedB64, password);
this.reportSuccess(functionName, decrypted == plaintext);
}
private void performSymmetricTestWithExplicitSchema(string functionName, string plaintext, string password, Schema schemaVersion)
{
Encryptor encryptor = new Encryptor();
string encryptedB64 = encryptor.Encrypt(plaintext, password, schemaVersion);
Decryptor decryptor = new Decryptor();
string decrypted = decryptor.Decrypt(encryptedB64, password);
this.reportSuccess(functionName, decrypted == plaintext);
}
private void testCannotUseWithUnsupportedSchemaVersions()
{
Encryptor encryptor = new Encryptor();
string encryptedB64 = encryptor.Encrypt(TestStrings.SAMPLE_PLAINTEXT, TestStrings.SAMPLE_PASSWORD_A);
byte[] encrypted = Convert.FromBase64String(encryptedB64);
encrypted[0] = 0x03;
string encryptedV3 = Convert.ToBase64String(encrypted);
Decryptor decryptor = new Decryptor();
string decrypted = decryptor.Decrypt(encryptedV3, TestStrings.SAMPLE_PASSWORD_A);
this.reportSuccess(MethodBase.GetCurrentMethod().Name, decrypted == "");
}
private void testDecryptingWithBadPasswordFails()
{
Decryptor cryptor = new Decryptor();
string decrypted = cryptor.Decrypt(TestStrings.IOS_ENCRYPTED_V2_NON_BLOCK_INTERVAL, "bad-password");
this.reportSuccess(MethodBase.GetCurrentMethod().Name, decrypted == "");
}
/// <summary> Wraps the stream with a cryptographic stream </summary>
public sealed override Stream Decrypt(Stream stream)
{
try
{
ICryptoTransform xform = new Decryptor(this, TransformSize, BlockSize);
return new DisposingStream(new CryptoStream(stream, xform, CryptoStreamMode.Read))
.WithDisposeOf(xform);
}
catch (InvalidOperationException) { throw; }
catch { throw CryptographicException(); }
}