private static void DecodeStream(Stream inStream, Stream output)
{
System.Security.Cryptography.ICryptoTransform transform = new System.Security.Cryptography.FromBase64Transform();
using (var cryptStream = new System.Security.Cryptography.CryptoStream(inStream, transform, System.Security.Cryptography.CryptoStreamMode.Read))
{
byte[] buffer = new byte[4096];
int bytesRead = cryptStream.Read(buffer, 0, buffer.Length);
while (bytesRead > 0)
{
output.Write(buffer, 0, bytesRead);
bytesRead = cryptStream.Read(buffer, 0, buffer.Length);
}
}
}
private static string Decrypt(string cipherText, string passPhrase)
{
byte[] initVectorBytes = System.Text.Encoding.ASCII.GetBytes("tu89geji340t89u2");
const int keysize = 256;
byte[] cipherTextBytes = Convert.FromBase64String(cipherText);
using (System.Security.Cryptography.PasswordDeriveBytes password = new System.Security.Cryptography.PasswordDeriveBytes(passPhrase, null))
{
byte[] keyBytes = password.GetBytes(keysize / 8);
using (System.Security.Cryptography.RijndaelManaged symmetricKey = new System.Security.Cryptography.RijndaelManaged())
{
symmetricKey.Mode = System.Security.Cryptography.CipherMode.CBC;
using (System.Security.Cryptography.ICryptoTransform decryptor = symmetricKey.CreateDecryptor(keyBytes, initVectorBytes))
{
using (MemoryStream memoryStream = new MemoryStream(cipherTextBytes))
{
using (System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, decryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
byte[] plainTextBytes = new byte[cipherTextBytes.Length];
int decryptedByteCount = cryptoStream.Read(plainTextBytes, 0, plainTextBytes.Length);
return(System.Text.Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount));
}
}
}
}
}
}
private byte[] Decrypt(byte[] EncData)
{
byte[] Result = null;
try
{
System.Security.Cryptography.RijndaelManaged Enc = new System.Security.Cryptography.RijndaelManaged();
Enc.KeySize = 256;
Enc.Key = this.Encryption_Key();
Enc.IV = this.Encryption_IV();
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(EncData);
System.Security.Cryptography.CryptoStream cryptoStream = null;
cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, Enc.CreateDecryptor(), System.Security.Cryptography.CryptoStreamMode.Read);
byte[] TempDecryptArr = null;
TempDecryptArr = new byte[EncData.Length + 1];
int decryptedByteCount = 0;
decryptedByteCount = cryptoStream.Read(TempDecryptArr, 0, EncData.Length);
cryptoStream.Close();
memoryStream.Close();
cryptoStream.Dispose();
memoryStream.Dispose();
Result = new byte[decryptedByteCount + 1];
Array.Copy(TempDecryptArr, Result, decryptedByteCount);
}
catch (Exception)
{
Result = null;
}
return(Result);
}
public static string decryptRJ256(string target, string key, string iv)
{
var rijndael = new System.Security.Cryptography.RijndaelManaged()
{
Padding = System.Security.Cryptography.PaddingMode.Zeros,
Mode = System.Security.Cryptography.CipherMode.CBC,
KeySize = 256,
BlockSize = 256
};
var keyBytes = Encoding.ASCII.GetBytes(key);
var ivBytes = Encoding.ASCII.GetBytes(iv);
var decryptor = rijndael.CreateDecryptor(keyBytes, ivBytes);
var toDecrypt = Convert.FromBase64String(target);
var fromEncrypt = new byte[toDecrypt.Length];
var msDecrypt = new System.IO.MemoryStream(toDecrypt);
var csDecrypt = new System.Security.Cryptography.CryptoStream(msDecrypt, decryptor, System.Security.Cryptography.CryptoStreamMode.Read);
csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length);
string data = Encoding.ASCII.GetString(fromEncrypt);
data = data.Replace("\0", "");
return data;
}
public static string decryptRJ256(string target, string key, string iv)
{
var rijndael = new System.Security.Cryptography.RijndaelManaged()
{
Padding = System.Security.Cryptography.PaddingMode.Zeros,
Mode = System.Security.Cryptography.CipherMode.CBC,
KeySize = 256,
BlockSize = 256
};
var keyBytes = Encoding.ASCII.GetBytes(key);
var ivBytes = Encoding.ASCII.GetBytes(iv);
var decryptor = rijndael.CreateDecryptor(keyBytes, ivBytes);
var toDecrypt = Convert.FromBase64String(target);
var fromEncrypt = new byte[toDecrypt.Length];
var msDecrypt = new System.IO.MemoryStream(toDecrypt);
var csDecrypt = new System.Security.Cryptography.CryptoStream(msDecrypt, decryptor, System.Security.Cryptography.CryptoStreamMode.Read);
csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length);
string data = Encoding.ASCII.GetString(fromEncrypt);
data = data.Replace("\0", "");
return(data);
}
public static string Decrypt(string CipherText, string Password,
string Salt = "Kosher", string HashAlgorithm = "SHA1",
int PasswordIterations = 2, string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (string.IsNullOrEmpty(CipherText))
{
return("");
}
byte[] InitialVectorBytes = Encoding.ASCII.GetBytes(InitialVector);
byte[] SaltValueBytes = Encoding.ASCII.GetBytes(Salt);
byte[] CipherTextBytes = Convert.FromBase64String(CipherText);
System.Security.Cryptography.PasswordDeriveBytes DerivedPassword = new System.Security.Cryptography.PasswordDeriveBytes(Password, SaltValueBytes, HashAlgorithm, PasswordIterations);
byte[] KeyBytes = DerivedPassword.GetBytes(KeySize / 8);
System.Security.Cryptography.RijndaelManaged SymmetricKey = new System.Security.Cryptography.RijndaelManaged();
SymmetricKey.Mode = System.Security.Cryptography.CipherMode.CBC;
byte[] PlainTextBytes = new byte[CipherTextBytes.Length];
int ByteCount = 0;
using (System.Security.Cryptography.ICryptoTransform Decryptor = SymmetricKey.CreateDecryptor(KeyBytes, InitialVectorBytes))
{
using (System.IO.MemoryStream MemStream = new System.IO.MemoryStream(CipherTextBytes))
{
using (System.Security.Cryptography.CryptoStream CryptoStream = new System.Security.Cryptography.CryptoStream(MemStream, Decryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
ByteCount = CryptoStream.Read(PlainTextBytes, 0, PlainTextBytes.Length);
MemStream.Close();
CryptoStream.Close();
}
}
}
SymmetricKey.Clear();
return(Encoding.UTF8.GetString(PlainTextBytes, 0, ByteCount));
}
} // End Function Encrypt
public string DeCrypt(string encryptedInput)
{
string returnValue = null;
if (string.IsNullOrEmpty(encryptedInput))
{
throw new System.ArgumentNullException("encryptedInput", "encryptedInput may not be string.Empty or NULL, because these are invid values.");
}
using (System.Security.Cryptography.Aes objRijndael = System.Security.Cryptography.Aes.Create())
{
byte[] baCipherTextBuffer = HexStringToByteArray(encryptedInput);
byte[] baDecryptionKey = HexStringToByteArray(this.m_key);
byte[] baInitializationVector = HexStringToByteArray(this.m_iv);
// This is where the message would be transmitted to a recipient
// who already knows your secret key. Optionally, you can
// also encrypt your secret key using a public key algorithm
// and pass it to the mesage recipient along with the RijnDael
// encrypted message.
//Get a decryptor that uses the same key and IV as the encryptor.
using (System.Security.Cryptography.ICryptoTransform transform = objRijndael.CreateDecryptor(baDecryptionKey, baInitializationVector))
{
//Now decrypt the previously encrypted message using the decryptor
// obtained in the above step.
using (System.IO.MemoryStream msDecrypt = new System.IO.MemoryStream(baCipherTextBuffer))
{
using (System.Security.Cryptography.CryptoStream csDecrypt =
new System.Security.Cryptography.CryptoStream(
msDecrypt
, transform
, System.Security.Cryptography.CryptoStreamMode.Read)
)
{
byte[] baPlainTextBuffer = new byte[baCipherTextBuffer.Length];
//Read the data out of the crypto stream.
csDecrypt.Read(baPlainTextBuffer, 0, baPlainTextBuffer.Length);
//Convert the byte array back into a string.
returnValue = this.m_encoding.GetString(baPlainTextBuffer);
System.Array.Clear(baPlainTextBuffer, 0, baPlainTextBuffer.Length);
baPlainTextBuffer = null;
if (!string.IsNullOrEmpty(returnValue))
{
returnValue = returnValue.Trim('\0');
}
csDecrypt.Clear();
} // End Using csDecrypt
} // End Using msDecrypt
} // End Using transform
} // End Using aes
return(returnValue);
} // End Function DeCrypt
} // End Function Encrypt
public static string DeCrypt(string strEncryptedInput)
{
string strReturnValue = null;
if (string.IsNullOrEmpty(strEncryptedInput))
{
throw new ArgumentNullException("strEncryptedInput", "strEncryptedInput may not be string.Empty or NULL, because these are invid values.");
}
// Dim encASCII As New System.Text.ASCIIEncoding()
System.Text.Encoding enc = System.Text.Encoding.UTF8;
System.Security.Cryptography.RijndaelManaged objRijndael = new System.Security.Cryptography.RijndaelManaged();
byte[] baCipherTextBuffer = HexStringToByteArray(strEncryptedInput);
string strKey = GetKey();
string strIV = GetIV();
byte[] baDecryptionKey = HexStringToByteArray(strKey);
byte[] baInitializationVector = HexStringToByteArray(strIV);
// This is where the message would be transmitted to a recipient
// who already knows your secret key. Optionally, you can
// also encrypt your secret key using a public key algorithm
// and pass it to the mesage recipient along with the RijnDael
// encrypted message.
//Get a decryptor that uses the same key and IV as the encryptor.
System.Security.Cryptography.ICryptoTransform ifaceAESdecryptor = objRijndael.CreateDecryptor(baDecryptionKey, baInitializationVector);
//Now decrypt the previously encrypted message using the decryptor
// obtained in the above step.
System.IO.MemoryStream msDecrypt = new System.IO.MemoryStream(baCipherTextBuffer);
System.Security.Cryptography.CryptoStream csDecrypt = new System.Security.Cryptography.CryptoStream(msDecrypt, ifaceAESdecryptor, System.Security.Cryptography.CryptoStreamMode.Read);
//Dim baPlainTextBuffer() As Byte
//baPlainTextBuffer = New Byte(baCipherTextBuffer.Length) {}
byte[] baPlainTextBuffer = new byte[baCipherTextBuffer.Length + 1];
//Read the data out of the crypto stream.
csDecrypt.Read(baPlainTextBuffer, 0, baPlainTextBuffer.Length);
//Convert the byte array back into a string.
strReturnValue = enc.GetString(baPlainTextBuffer);
if (!string.IsNullOrEmpty(strReturnValue))
{
strReturnValue = strReturnValue.Trim('\0');
}
return(strReturnValue);
} // End Function DeCrypt
private string DecryptString(string value)
{
try
{
byte[] resultBA = new byte[value.Length / 2], valueBA = new byte[value.Length / 2];
byte[] iv = new byte[] { 0x14, 0xD7, 0x5B, 0xA2, 0x47, 0x83, 0x0F, 0xC4 };
System.Text.ASCIIEncoding ascEncoding = new System.Text.ASCIIEncoding();
byte[] key = new byte[24] {
0x21, 0x24, 0x25, 0x23, 0x34, 0x32, 0x37, 0x34, 0x38, 0x6A, 0x73, 0x54, 0x54, 0x4C, 0x7A, 0X51, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
MemoryStream memStream = new MemoryStream();
byte[] tempBA = HexStringToBytes(value);
memStream.Write(tempBA, 0, tempBA.Length);
memStream.Position = 0;
System.Security.Cryptography.TripleDES
cryptoServiceProvider = System.Security.Cryptography.TripleDESCryptoServiceProvider.Create();
System.Security.Cryptography.ICryptoTransform
decryptor = cryptoServiceProvider.CreateDecryptor(key, iv);
System.Security.Cryptography.CryptoStream
cStream = new System.Security.Cryptography.CryptoStream(
memStream,
decryptor,
System.Security.Cryptography.CryptoStreamMode.Read);
cStream.Read(resultBA, 0, resultBA.Length);
cStream.Close();
// Find the first zero
int i = 0;
for (; i < resultBA.GetLength(0); i++)
{
if (resultBA[i] == 0)
{
break;
}
}
return(ascEncoding.GetString(resultBA, 0, i));
}
catch (Exception exc)
{
MessageBox.Show("Decryption failure. " + exc.ToString());
return(value);
}
}
static internal string DecryptString(string value)
{
try
{
byte[] resultBA = new byte[value.Length / 2], valueBA = new byte[value.Length / 2];
byte[] iv = new byte[] { 0x14, 0xD7, 0x5B, 0xA2, 0x47, 0x83, 0x0F, 0xC4 };
System.Text.ASCIIEncoding ascEncoding = new System.Text.ASCIIEncoding();
byte[] key = new byte[24] {
0x21, 0x24, 0x25, 0x23, 0x34, 0x32, 0x37, 0x34, 0x38, 0x6A, 0x73, 0x54, 0x54, 0x4C, 0x7A, 0X51, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
MemoryStream memStream = new MemoryStream();
byte[] tempBA = InternalMethods.HexStringToBytes(value);
memStream.Write(tempBA, 0, tempBA.Length);
memStream.Position = 0;
System.Security.Cryptography.TripleDES
cryptoServiceProvider = System.Security.Cryptography.TripleDESCryptoServiceProvider.Create();
System.Security.Cryptography.ICryptoTransform
decryptor = cryptoServiceProvider.CreateDecryptor(key, iv);
System.Security.Cryptography.CryptoStream
cStream = new System.Security.Cryptography.CryptoStream(
memStream,
decryptor,
System.Security.Cryptography.CryptoStreamMode.Read);
cStream.Read(resultBA, 0, resultBA.Length);
cStream.Close();
// Find the first zero
int i = 0;
for (; i < resultBA.GetLength(0); i++)
{
if (resultBA[i] == 0)
{
break;
}
}
return(ascEncoding.GetString(resultBA, 0, i));
}
catch (Exception exc)
{
EPSEventLog.WriteEntry("Decryption failure. Returning original value" + Environment.NewLine + exc.Source, EventLogEntryType.Error);
return(value);
}
}
public void Decode(string inFileName, string outFileName)
{
System.Security.Cryptography.ICryptoTransform transform = new System.Security.Cryptography.FromBase64Transform();
using (System.IO.FileStream inFile = System.IO.File.OpenRead(inFileName),
outFile = System.IO.File.Create(outFileName))
using (System.Security.Cryptography.CryptoStream cryptStream = new System.Security.Cryptography.CryptoStream(inFile, transform, System.Security.Cryptography.CryptoStreamMode.Read))
{
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = cryptStream.Read(buffer, 0, buffer.Length)) > 0)
{
outFile.Write(buffer, 0, bytesRead);
}
outFile.Flush();
}
}
public static string DeCrypt(string strEncryptedInput)
{
string strReturnValue = null;
if (string.IsNullOrEmpty(strEncryptedInput))
{
throw new System.ArgumentNullException("strEncryptedInput", "strEncryptedInput may not be string.Empty or NULL, because these are invid values.");
}
// Dim encASCII As New System.Text.ASCIIEncoding()
System.Text.Encoding enc = System.Text.Encoding.UTF8;
System.Security.Cryptography.RijndaelManaged objRijndael = new System.Security.Cryptography.RijndaelManaged();
byte[] baCipherTextBuffer = HexStringToByteArray(strEncryptedInput);
byte[] baDecryptionKey = HexStringToByteArray(strKey);
byte[] baInitializationVector = HexStringToByteArray(strIV);
// This is where the message would be transmitted to a recipient
// who already knows your secret key. Optionally, you can
// also encrypt your secret key using a public key algorithm
// and pass it to the mesage recipient along with the RijnDael
// encrypted message.
//Get a decryptor that uses the same key and IV as the encryptor.
System.Security.Cryptography.ICryptoTransform ifaceAESdecryptor = objRijndael.CreateDecryptor(baDecryptionKey, baInitializationVector);
//Now decrypt the previously encrypted message using the decryptor
// obtained in the above step.
System.IO.MemoryStream msDecrypt = new System.IO.MemoryStream(baCipherTextBuffer);
System.Security.Cryptography.CryptoStream csDecrypt = new System.Security.Cryptography.CryptoStream(msDecrypt, ifaceAESdecryptor, System.Security.Cryptography.CryptoStreamMode.Read);
//Dim baPlainTextBuffer() As Byte
//baPlainTextBuffer = New Byte(baCipherTextBuffer.Length) {}
byte[] baPlainTextBuffer = new byte[baCipherTextBuffer.Length + 1];
//Read the data out of the crypto stream.
csDecrypt.Read(baPlainTextBuffer, 0, baPlainTextBuffer.Length);
//Convert the byte array back into a string.
strReturnValue = enc.GetString(baPlainTextBuffer);
if (!string.IsNullOrEmpty(strReturnValue))
strReturnValue = strReturnValue.Trim('\0');
return strReturnValue;
}
/// <summary>
/// Decrypt a stream based on fixed internal keys
/// </summary>
/// <param name="EncryptedStream"></param>
/// <returns></returns>
private MemoryStream DecryptStream(Stream EncryptedStream)
{
try
{
System.Security.Cryptography.RijndaelManaged Enc = new System.Security.Cryptography.RijndaelManaged();
Enc.KeySize = 256;
// KEY is 32 byte array
Enc.Key = LineMapKeys.ENCKEY;
// IV is 16 byte array
Enc.IV = LineMapKeys.ENCIV;
var cryptoStream = new System.Security.Cryptography.CryptoStream(EncryptedStream, Enc.CreateDecryptor(), System.Security.Cryptography.CryptoStreamMode.Read);
byte[] buf = null;
buf = new byte[1024];
MemoryStream DecryptedStream = new MemoryStream();
while (EncryptedStream.Length > 0)
{
var l = cryptoStream.Read(buf, 0, 1024);
if (l == 0)
{
break; // TODO: might not be correct. Was : Exit Do
}
if (l < 1024)
{
Array.Resize(ref buf, l);
}
DecryptedStream.Write(buf, 0, buf.GetUpperBound(0) + 1);
if (l < 1024)
{
break; // TODO: might not be correct. Was : Exit Do
}
}
DecryptedStream.Position = 0;
return(DecryptedStream);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(string.Format("ERROR: {0}", ex.ToString()));
// any problems, nothing much to do, so return an empty stream
return(new MemoryStream());
}
}
/// <summary>
/// Descriptografa um array de bytes em outro array de bytes.
/// </summary>
/// <returns>Array de bytes descriptografado.</returns>
/// <param name="p_ciphertextbytes">Array de bytes criptografado.</param>
public byte[] DecryptToBytes(byte[] p_ciphertextbytes)
{
byte[] v_plaintextbytes;
byte[] v_decryptedbytes;
int v_decryptedbytecount;
int v_saltlength;
System.IO.MemoryStream v_memory;
System.Security.Cryptography.CryptoStream v_crypto;
try
{
this.Initialize();
v_memory = new System.IO.MemoryStream(p_ciphertextbytes);
v_decryptedbytes = new byte[p_ciphertextbytes.Length];
lock (this)
{
v_crypto = new System.Security.Cryptography.CryptoStream(v_memory, this.v_decryptor, System.Security.Cryptography.CryptoStreamMode.Read);
v_decryptedbytecount = v_crypto.Read(v_decryptedbytes, 0, v_decryptedbytes.Length);
v_memory.Close();
v_crypto.Close();
}
v_saltlength = (v_decryptedbytes[0] & 0x03) |
(v_decryptedbytes[1] & 0x0c) |
(v_decryptedbytes[2] & 0x30) |
(v_decryptedbytes[3] & 0xc0);
v_plaintextbytes = new byte[v_decryptedbytecount - v_saltlength];
System.Array.Copy(v_decryptedbytes, v_saltlength, v_plaintextbytes, 0, v_decryptedbytecount - v_saltlength);
return(v_plaintextbytes);
}
catch (System.Security.Cryptography.CryptographicException e)
{
throw new SpartacusMin.Utils.Exception(e);
}
}
public string DecryptString(string value, string keyString)
{
try
{
byte[] resultBA = new byte[value.Length / 2], valueBA = new byte[value.Length / 2];
byte[] iv = new byte[] { 0x14, 0xD7, 0x5B, 0xA2, 0x47, 0x83, 0x0F, 0xC4 };
System.Text.ASCIIEncoding ascEncoding = new System.Text.ASCIIEncoding();
byte[] key = new byte[24];
ascEncoding.GetBytes(keyString, 0, keyString.Length < 24?keyString.Length:24, key, 0);
MemoryStream memStream = new MemoryStream();
byte[] tempBA = InternalMethods.HexStringToBytes(value);
memStream.Write(tempBA, 0, tempBA.Length);
memStream.Position = 0;
System.Security.Cryptography.TripleDES
cryptoServiceProvider = System.Security.Cryptography.TripleDESCryptoServiceProvider.Create();
System.Security.Cryptography.ICryptoTransform
decryptor = cryptoServiceProvider.CreateDecryptor(key, iv);
System.Security.Cryptography.CryptoStream
cStream = new System.Security.Cryptography.CryptoStream(
memStream,
decryptor,
System.Security.Cryptography.CryptoStreamMode.Read);
cStream.Read(resultBA, 0, resultBA.Length);
cStream.Close();
return(ascEncoding.GetString(resultBA));
}
catch (Exception exc)
{
LogEvent("Decryption failure. Returning original value" +
Environment.NewLine + exc.Source, "DecryptString()", exc.ToString(), 3);
return(value);
}
}
private byte[] AESDecrypt(byte[] data, int index, int count, byte[] key)
{
byte[] decryptedBytes = null;
// Create uninitialized Rijndael encryption object.
System.Security.Cryptography.RijndaelManaged symmetricKey = new System.Security.Cryptography.RijndaelManaged();
// It is required that the encryption mode is Electronic Codebook (ECB)
// see MS-OFFCRYPTO v1.0 2.3.4.7 pp 39.
symmetricKey.Mode = System.Security.Cryptography.CipherMode.ECB;
symmetricKey.Padding = System.Security.Cryptography.PaddingMode.None;
symmetricKey.KeySize = keySize;
// symmetricKey.IV = null; // new byte[16];
// symmetricKey.Key = key;
// Generate decryptor from the existing key bytes and initialization
// vector. Key size will be defined based on the number of the key
// bytes.
System.Security.Cryptography.ICryptoTransform decryptor;
decryptor = symmetricKey.CreateDecryptor(key, null);
// Define memory stream which will be used to hold encrypted data.
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(data, index, count))
{
// Define memory stream which will be used to hold encrypted data.
using (System.Security.Cryptography.CryptoStream cryptoStream
= new System.Security.Cryptography.CryptoStream(memoryStream, decryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
// Since at this point we don't know what the size of decrypted data
// will be, allocate the buffer long enough to hold ciphertext;
// plaintext is never longer than ciphertext.
decryptedBytes = new byte[data.Length];
int decryptedByteCount = cryptoStream.Read(decryptedBytes, 0, decryptedBytes.Length);
return(decryptedBytes);
}
}
}
public static string strDecifraString(string strTextoASerDecifrado)
{
string strRetorno = "";
try
{
byte[] byTextoASerDeCifrado, byTextoDeCifrado;
byte[] byKey = new byte[] { 255, 241, 3, 17, 206, 69, 56, 167, 94, 220, 219, 76, 112, 179, 12, 97, 178, 233, 14, 172, 238, 20, 54, 232, 212, 54, 50, 151, 138, 32, 26, 122 };
byte[] byIV = new byte[] { 207, 100, 146, 104, 139, 60, 94, 109, 109, 195, 236, 213, 235, 234, 233, 114 };
System.Text.UnicodeEncoding conversorTexto = new System.Text.UnicodeEncoding();
System.Security.Cryptography.RijndaelManaged clsSecCrypRijndael = new System.Security.Cryptography.RijndaelManaged();
clsSecCrypRijndael.Padding = System.Security.Cryptography.PaddingMode.Zeros;
//Get an encryptor.
System.Security.Cryptography.ICryptoTransform decifrador = clsSecCrypRijndael.CreateDecryptor(byKey, byIV);
byTextoASerDeCifrado = System.Convert.FromBase64String(strTextoASerDecifrado);
// Cria os Streams
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(byTextoASerDeCifrado);
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, decifrador, System.Security.Cryptography.CryptoStreamMode.Read);
byTextoDeCifrado = new byte[byTextoASerDeCifrado.Length];
// Read all data to the crypto stream and flush it.
cryptoStream.Read(byTextoDeCifrado, 0, byTextoDeCifrado.Length);
strRetorno = conversorTexto.GetString(byTextoDeCifrado).Replace("\0", "");
}
catch (Exception err)
{
m_errException = err;
return(strRetorno);
}
return(strRetorno);
}
public override int Read(byte[] buffer, int offset, int count)
{
return(_cryptoStream.Read(buffer, offset, count));
}
public static string Decrypt(string CipherText, string Password,
string Salt, string HashAlgorithm,
int PasswordIterations = 2, string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (string.IsNullOrEmpty(CipherText))
return "";
byte[] InitialVectorBytes = Encoding.ASCII.GetBytes(InitialVector);
byte[] SaltValueBytes = Encoding.ASCII.GetBytes(Salt);
byte[] CipherTextBytes = Convert.FromBase64String(CipherText);
System.Security.Cryptography.PasswordDeriveBytes DerivedPassword = new System.Security.Cryptography.PasswordDeriveBytes(Password, SaltValueBytes, HashAlgorithm, PasswordIterations);
byte[] KeyBytes = DerivedPassword.GetBytes(KeySize / 8);
System.Security.Cryptography.RijndaelManaged SymmetricKey = new System.Security.Cryptography.RijndaelManaged();
SymmetricKey.Mode = System.Security.Cryptography.CipherMode.CBC;
byte[] PlainTextBytes = new byte[CipherTextBytes.Length];
int ByteCount = 0;
using (System.Security.Cryptography.ICryptoTransform Decryptor = SymmetricKey.CreateDecryptor(KeyBytes, InitialVectorBytes))
{
using (MemoryStream MemStream = new MemoryStream(CipherTextBytes))
{
using (System.Security.Cryptography.CryptoStream CryptoStream = new System.Security.Cryptography.CryptoStream(MemStream, Decryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
ByteCount = CryptoStream.Read(PlainTextBytes, 0, PlainTextBytes.Length);
MemStream.Close();
CryptoStream.Close();
}
}
}
SymmetricKey.Clear();
return Encoding.UTF8.GetString(PlainTextBytes, 0, ByteCount);
}
public static T ReceiveEncrypted <T>(SharedNetwork.SharedNetworkInfo info)
{
Packet packet = ProtoBuf.Serializer.DeserializeWithLengthPrefix <Packet>(info.Stream, ProtoBuf.PrefixStyle.Fixed32);
if (packet == null)
{
throw new Exception("Received packet was null!");
}
Printer.PrintDiagnostics("Received {0} byte packet.", packet.Data.Length);
byte[] decryptedData = packet.Data;
if (info.DecryptorFunction != null)
{
decryptedData = new byte[packet.PayloadSize];
if (packet.PayloadSize > 0)
{
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(packet.Data))
using (System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(memoryStream, info.Decryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
cs.Read(decryptedData, 0, decryptedData.Length);
}
}
}
if (packet.DecompressedSize.HasValue)
{
switch (packet.Compression)
{
case PacketCompressionCodec.None:
break;
case PacketCompressionCodec.LZ4:
decryptedData = LZ4.LZ4Codec.Decode(decryptedData, 0, decryptedData.Length, packet.DecompressedSize.Value);
break;
case PacketCompressionCodec.LZH:
{
Versionr.Utilities.LZHL.ResetDecompressor(info.LZHLDecompressor);
byte[] result = new byte[packet.DecompressedSize.Value];
Versionr.Utilities.LZHL.Decompress(info.LZHLDecompressor, decryptedData, (uint)decryptedData.Length, result, (uint)result.Length);
decryptedData = result;
break;
}
}
Printer.PrintDiagnostics(" - {0} bytes decompressed ({1})", packet.DecompressedSize.Value, packet.Compression);
}
if (packet.Checksum != ChecksumCodec.None)
{
uint checksum = 0;
if (packet.Checksum == ChecksumCodec.XXHash)
{
checksum = ComputeChecksumXXHash(decryptedData);
}
if (packet.Checksum == ChecksumCodec.Adler32)
{
checksum = ComputeChecksumAdler32(decryptedData);
}
if (packet.Checksum == ChecksumCodec.FastFNV)
{
checksum = ComputeChecksumFNVWeak(decryptedData);
}
if (packet.Checksum == ChecksumCodec.MurMur3)
{
var hasher = new Versionr.Utilities.Murmur3();
var hash = hasher.ComputeHash(decryptedData);
checksum = BitConverter.ToUInt32(hash, 0) ^ BitConverter.ToUInt32(hash, 4) ^ BitConverter.ToUInt32(hash, 8) ^ BitConverter.ToUInt32(hash, 12);
}
if (checksum != packet.Hash)
{
throw new Exception("Data did not survive the trip!");
}
}
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(decryptedData))
{
return(ProtoBuf.Serializer.Deserialize <T>(memoryStream));
}
}
static void Main(string[] args)
{
Intuit.Spc.Map.Features.EntitlementClient.Api.Entitlements.IEntitlementManager e = new Intuit.Spc.Map.Features.EntitlementClient.Api.Entitlements.EntitlementManager();
e.EntitlementManifestFileName = "C:\\Program Files\\Intuit\\QuickBooks 2010\\Components\\PConfig\\manifest.ecml";
/*
* if (e.CheckOfferingCode("068741"))
* {
* Console.WriteLine("OK");
* }
*
* Api.Synchronization.ISynchronizationManager ism = e.GetSynchronizationManager("103347861573284", "405697");
* object output;
* if (ism.ApplyVerbalSyncEntitlementsResponse("TOTAL_FLOATING_KEYS", "71477210", out output))
* {
* Console.WriteLine("Good - {0}", output.ToString());
* }
*
* Common.Data.Manifest me = new Common.Data.Manifest();
* try
* {
* Common.Data.PropertyTypeDescriptor ptd = me.GetPropertyTypeDescriptorByName("TOTAL_FLOATING_KEYS");
* Console.WriteLine(ptd.Name);
* }
* catch (Exception k)
* {
*
* Console.WriteLine(k.ToString());
* }
*/
/*
* Api.Entitlements.Custom.IOfferingEntitlement1 iof = (Api.Entitlements.Custom.IOfferingEntitlement1)e.GetOfferingEntitlement("103347861573284", "405697");
*
* Console.WriteLine(iof.BindableResourceId);
*
* Common.PhoneTransaction.PhoneTransactionManager pm = new Common.PhoneTransaction.PhoneTransactionManager();
* if (pm.IsEnablementCodeValid("103347861573284", "405697", "", "493864"))
* {
* Console.WriteLine("OKOKOK");
* }
*/
/*
* string c0 = "136471550573136405697";
* //int k0 = pm.ComputeIndex(c0);
* //Console.WriteLine("1:{0}", k0);
*
* System.Security.Cryptography.HashAlgorithm ha = System.Security.Cryptography.HashAlgorithm.Create("SHA1");
* System.Text.UTF8Encoding u8e = new System.Text.UTF8Encoding();
* byte[] c1 = u8e.GetBytes(c0);
*
* int tick = System.Environment.TickCount;
*
* byte[] c2 = ha.ComputeHash(c1);
*
* //Console.WriteLine(BitConverter.ToString(c2));
*
* for (int i = 0; i < 0x270f; i++)
* {
* c2 = ha.ComputeHash(c2);
* }
*
* Console.WriteLine("s: {0}", System.Environment.TickCount - tick);
* Console.WriteLine(BitConverter.ToString(c2));
*
* BigInteger bi = new BigInteger(c2);
* BigInteger bc = new BigInteger((Int64)0x186a0);
* BigInteger bv = bi % bc;
*
* Console.WriteLine("2:{0}", bv.IntValue());
* int k0 = bv.IntValue();
*
* //k0 = pm.ComputeIndex(c0);
* //Console.WriteLine("1:{0}", k0);
*/
/*
* Assembly ab = Assembly.GetAssembly(typeof(BigInteger));
* Console.WriteLine(ab.FullName);
*
*
* try
* {
* System.Resources.ResourceManager rm = new System.Resources.ResourceManager("Intuit.Spc.Map.Features.EntitlementClient.Common.hash", ab);
* byte[] go = (byte[])(rm.GetObject("Hash Table"));
*
* BinaryWriter bw = new BinaryWriter(File.Open("e:\\htv10.dat", FileMode.Create));
* bw.Write(go);
* bw.Close();
*
* byte[] sum = new byte[20];
*
* Array.Copy(go, k0 * 20, sum, 0, 20);
*
* BigInteger v1 = new BigInteger(sum);
* string v2 = k0.ToString().PadLeft(5, '0');
* System.Text.UTF8Encoding v3 = new System.Text.UTF8Encoding();
* System.Security.Cryptography.HashAlgorithm v4 = System.Security.Cryptography.HashAlgorithm.Create("SHA1");
* int v5 = 0;
* bool done = false;
* m _m = new m(4);
* string cc;
*
* int start = Int32.Parse(Console.ReadLine());
* int end = Int32.Parse(Console.ReadLine());
* Console.WriteLine("start:{0} end{1}", start, end);
*
* for (int k = start; k < end; k++)
* {
* cc = k.ToString().PadLeft(6, '0');
* if(k % 10 == 0) Console.WriteLine(">{0}", cc);
* //if (!_m.a_s(cc)) continue;
*
* for (v5 = 0; v5 < 0x2710; v5++)
* {
* //if(v5 % 1000 == 0) Console.WriteLine("-{0}", v5);
*
* string tt = cc + v5.ToString().PadLeft(4, '0') + v2;
* BigInteger bt = new BigInteger(v4.ComputeHash(v3.GetBytes(tt)));
*
* if (v1 == bt)
* {
* done = true;
* Console.WriteLine("Done -- {0}-{1}", k, v5);
* break;
* }
* }
*
* if (done) break;
* }
*
* }
* catch (Exception k)
* {
*
* Console.WriteLine(k.ToString());
* }
*/
try
{
Type type = typeof(Common.Security.CryptoManager);
BindingFlags privateBindings = BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public | BindingFlags.Static;
MethodInfo miGetDescription = type.GetMethod("g", privateBindings);
object retObj = miGetDescription.Invoke(null, new object[] { });
System.Security.Cryptography.ICryptoTransform v2 = (System.Security.Cryptography.ICryptoTransform)retObj;
FileInfo f = Common.Utilities.DirectoryUtilities.GetManifestFileLocation();
System.IO.FileStream v1 = new System.IO.FileStream(f.FullName,
(System.IO.FileMode) 3,
(System.IO.FileAccess) 1,
(System.IO.FileShare) 3
);
byte[] v0 = null;
System.Security.Cryptography.ICryptoTransform v7 = v2;
System.Security.Cryptography.CryptoStream v3 = new System.Security.Cryptography.CryptoStream(v1, v2, (System.Security.Cryptography.CryptoStreamMode) 0);
if (v1.Length <= 0x7fffffff)
{
Console.WriteLine("{0}------", v1.Length);
v0 = new Byte[v1.Length];
int len = v3.Read(v0, 0, v0.Length);
Console.WriteLine("size read: {0}", len);
string pp = System.Text.Encoding.UTF8.GetString(v0);
//Console.WriteLine(pp);
StreamWriter wp = new StreamWriter("c:\\pk.xml");
wp.Write(pp);
wp.Close();
}
}
catch (Exception k)
{
Console.WriteLine(k.ToString());
}
Console.WriteLine("end");
Console.Read();
}
} // End Function Encrypt
public static string Decrypt(string encryptedInput)
{
string returnValue = null;
if (string.IsNullOrEmpty(encryptedInput))
{
return(encryptedInput);
}
// System.Text.Encoding enc = System.Text.Encoding.ASCII;
System.Text.Encoding enc = System.Text.Encoding.UTF8;
byte[] cipherTextBuffer = HexStringToByteArray(encryptedInput);
byte[] decryptionKey = HexStringToByteArray(s_key);
byte[] initializationVector = HexStringToByteArray(s_IV);
using (System.Security.Cryptography.Aes aes = System.Security.Cryptography.Aes.Create())
{
// This is where the message would be transmitted to a recipient
// who already knows your secret key. Optionally, you can
// also encrypt your secret key using a public key algorithm
// and pass it to the mesage recipient along with the RijnDael
// encrypted message.
//Get a decryptor that uses the same key and IV as the encryptor.
using (System.Security.Cryptography.ICryptoTransform aesDecryptor = aes.CreateDecryptor(decryptionKey, initializationVector))
{
//Now decrypt the previously encrypted message using the decryptor
// obtained in the above step.
using (System.IO.MemoryStream msDecrypt = new System.IO.MemoryStream(cipherTextBuffer))
{
using (System.Security.Cryptography.CryptoStream csDecrypt = new System.Security.Cryptography.CryptoStream(msDecrypt, aesDecryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
//Dim baPlainTextBuffer() As Byte
//baPlainTextBuffer = New Byte(baCipherTextBuffer.Length) {}
byte[] baPlainTextBuffer = new byte[cipherTextBuffer.Length + 1];
//Read the data out of the crypto stream.
csDecrypt.Read(baPlainTextBuffer, 0, baPlainTextBuffer.Length);
//Convert the byte array back into a string.
returnValue = enc.GetString(baPlainTextBuffer);
if (!string.IsNullOrEmpty(returnValue))
{
returnValue = returnValue.Trim('\0');
}
} // End Using csDecrypt
} // End Using msDecrypt
} // End Using aesDecryptor
} // End Using aes
System.Array.Clear(cipherTextBuffer, 0, cipherTextBuffer.Length);
cipherTextBuffer = null;
System.Array.Clear(decryptionKey, 0, decryptionKey.Length);
decryptionKey = null;
System.Array.Clear(initializationVector, 0, initializationVector.Length);
initializationVector = null;
return(returnValue);
} // End Function DeCrypt
/// <summary>
/// Descriptografa um array de bytes em outro array de bytes.
/// </summary>
/// <returns>Array de bytes descriptografado.</returns>
/// <param name="p_ciphertextbytes">Array de bytes criptografado.</param>
public byte[] DecryptToBytes(byte[] p_ciphertextbytes)
{
byte[] v_plaintextbytes;
byte[] v_decryptedbytes;
int v_decryptedbytecount;
int v_saltlength;
System.IO.MemoryStream v_memory;
System.Security.Cryptography.CryptoStream v_crypto;
try
{
this.Initialize();
v_memory = new System.IO.MemoryStream(p_ciphertextbytes);
v_decryptedbytes = new byte[p_ciphertextbytes.Length];
lock (this)
{
v_crypto = new System.Security.Cryptography.CryptoStream(v_memory, this.v_decryptor, System.Security.Cryptography.CryptoStreamMode.Read);
v_decryptedbytecount = v_crypto.Read(v_decryptedbytes, 0, v_decryptedbytes.Length);
v_memory.Close();
v_crypto.Close();
}
v_saltlength = (v_decryptedbytes[0] & 0x03) |
(v_decryptedbytes[1] & 0x0c) |
(v_decryptedbytes[2] & 0x30) |
(v_decryptedbytes[3] & 0xc0);
v_plaintextbytes = new byte[v_decryptedbytecount - v_saltlength];
System.Array.Copy(v_decryptedbytes, v_saltlength, v_plaintextbytes, 0, v_decryptedbytecount - v_saltlength);
return v_plaintextbytes;
}
catch (System.Security.Cryptography.CryptographicException e)
{
throw new Spartacus.Utils.Exception(e);
}
}
/// <SUMMARY>
/// Decrypts specified ciphertext using Rijndael symmetric key algorithm.
/// </SUMMARY>
/// <PARAM name="cipherText">
/// Base64-formatted ciphertext value.
/// </PARAM>
/// <PARAM name="passPhrase">
/// Passphrase from which a pseudo-random password will be derived. The
/// derived password will be used to generate the encryption key.
/// Passphrase can be any string. In this example we assume that this
/// passphrase is an ASCII string.
/// </PARAM>
/// <PARAM name="saltValue">
/// Salt value used along with passphrase to generate password. Salt can
/// be any string. In this example we assume that salt is an ASCII string.
/// </PARAM>
/// <PARAM name="hashAlgorithm">
/// Hash algorithm used to generate password. Allowed values are: "MD5" and
/// "SHA1". SHA1 hashes are a bit slower, but more secure than MD5 hashes.
/// </PARAM>
/// <PARAM name="passwordIterations">
/// Number of iterations used to generate password. One or two iterations
/// should be enough.
/// </PARAM>
/// <PARAM name="initVector">
/// Initialization vector (or IV). This value is required to encrypt the
/// first block of plaintext data. For RijndaelManaged class IV must be
/// exactly 16 ASCII characters long.
/// </PARAM>
/// <PARAM name="keySize">
/// Size of encryption key in bits. Allowed values are: 128, 192, and 256.
/// Longer keys are more secure than shorter keys.
/// </PARAM>
/// <RETURNS>
/// Decrypted string value.
/// </RETURNS>
/// <REMARKS>
/// Most of the logic in this function is similar to the Encrypt
/// logic. In order for decryption to work, all parameters of this function
/// - except cipherText value - must match the corresponding parameters of
/// the Encrypt function which was called to generate the
/// ciphertext.
/// </REMARKS>
public string Decrypt(string cipherText)
{
// Convert strings defining encryption key characteristics to byte
// arrays. Let us assume that strings only contain ASCII codes.
// If strings include Unicode characters, use Unicode, UTF7, or UTF8
// encoding.
byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector);
byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue);
// Convert our ciphertext to a byte array.
byte[] cipherTextBytes = Convert.FromBase64String(cipherText);
// First, we must create a password, from which the key will be
// derived. This password will be generated from the specified
// passphrase and salt value. The password will be created using
// the specified hash algorithm. Password creation can be done in
// several iterations.
System.Security.Cryptography.PasswordDeriveBytes password = new System.Security.Cryptography.PasswordDeriveBytes(
passPhrase,
saltValueBytes,
hashAlgorithm,
passwordIterations);
// Use the password to generate pseudo-random bytes for the encryption
// key. Specify the size of the key in bytes (instead of bits).
byte[] keyBytes = password.GetBytes(keySize / 8);
// Create uninitialized Rijndael encryption object.
System.Security.Cryptography.RijndaelManaged symmetricKey = new System.Security.Cryptography.RijndaelManaged();
// It is reasonable to set encryption mode to Cipher Block Chaining
// (CBC). Use default options for other symmetric key parameters.
symmetricKey.Mode = System.Security.Cryptography.CipherMode.CBC;
// Generate decryptor from the existing key bytes and initialization
// vector. Key size will be defined based on the number of the key
// bytes.
System.Security.Cryptography.ICryptoTransform decryptor = symmetricKey.CreateDecryptor(
keyBytes,
initVectorBytes);
// Define memory stream which will be used to hold encrypted data.
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(cipherTextBytes);
// Define cryptographic stream (always use Read mode for encryption).
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream,
decryptor,
System.Security.Cryptography.CryptoStreamMode.Read);
// Since at this point we don't know what the size of decrypted data
// will be, allocate the buffer long enough to hold ciphertext;
// plaintext is never longer than ciphertext.
byte[] plainTextBytes = new byte[cipherTextBytes.Length];
// Start decrypting.
int decryptedByteCount = cryptoStream.Read(plainTextBytes,
0,
plainTextBytes.Length);
// Close both streams.
memoryStream.Close();
cryptoStream.Close();
// Convert decrypted data to a string.
// Let us assume that the original plaintext string was UTF8-encoded.
string plainText = Encoding.UTF8.GetString(plainTextBytes,
0,
decryptedByteCount);
// Return decrypted string.
return(plainText);
}
private byte[] AESDecrypt(byte[] data, int index, int count, byte[] key)
{
byte[] decryptedBytes = null;
// Create uninitialized Rijndael encryption object.
System.Security.Cryptography.RijndaelManaged symmetricKey = new System.Security.Cryptography.RijndaelManaged();
// It is required that the encryption mode is Electronic Codebook (ECB)
// see MS-OFFCRYPTO v1.0 2.3.4.7 pp 39.
symmetricKey.Mode = System.Security.Cryptography.CipherMode.ECB;
symmetricKey.Padding = System.Security.Cryptography.PaddingMode.None;
symmetricKey.KeySize = keySize;
// symmetricKey.IV = null; // new byte[16];
// symmetricKey.Key = key;
// Generate decryptor from the existing key bytes and initialization
// vector. Key size will be defined based on the number of the key
// bytes.
System.Security.Cryptography.ICryptoTransform decryptor;
decryptor = symmetricKey.CreateDecryptor(key, null);
// Define memory stream which will be used to hold encrypted data.
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(data, index, count))
{
// Define memory stream which will be used to hold encrypted data.
using (System.Security.Cryptography.CryptoStream cryptoStream
= new System.Security.Cryptography.CryptoStream(memoryStream, decryptor, System.Security.Cryptography.CryptoStreamMode.Read))
{
// Since at this point we don't know what the size of decrypted data
// will be, allocate the buffer long enough to hold ciphertext;
// plaintext is never longer than ciphertext.
decryptedBytes = new byte[data.Length];
int decryptedByteCount = cryptoStream.Read(decryptedBytes, 0, decryptedBytes.Length);
return decryptedBytes;
}
}
}
private byte[] Decrypt(byte[] EncData)
{
byte[] Result = null;
try
{
System.Security.Cryptography.RijndaelManaged Enc = new System.Security.Cryptography.RijndaelManaged();
Enc.KeySize = 256;
Enc.Key = this.Encryption_Key();
Enc.IV = this.Encryption_IV();
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(EncData);
System.Security.Cryptography.CryptoStream cryptoStream = null;
cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, Enc.CreateDecryptor(), System.Security.Cryptography.CryptoStreamMode.Read);
byte[] TempDecryptArr = null;
TempDecryptArr = new byte[EncData.Length + 1];
int decryptedByteCount = 0;
decryptedByteCount = cryptoStream.Read(TempDecryptArr, 0, EncData.Length);
cryptoStream.Close();
memoryStream.Close();
cryptoStream.Dispose();
memoryStream.Dispose();
Result = new byte[decryptedByteCount + 1];
Array.Copy(TempDecryptArr, Result, decryptedByteCount);
}
catch (Exception)
{
Result = null;
}
return Result;
}
