Поскольку никто не смог предоставить полностью функциональное ДВУНАПРАВЛЕННОЕ решение, я взял на себя смелость предоставить его сообществу в этой статье.
Проблема в том, что PHP не соответствует стандартам, заставляя строки дополняться для соответствия. В настоящее время не существует известного способа надежно передать IV, если он генерируется случайным образом между .NET и PHP (если вы узнаете, как, или это изменится, пожалуйста, не стесняйтесь пересматривать это).
Ниже приведено ПОЛНОЕ решение для шифрования данных с использованием Triple DES способом, совместимым с .NET и PHP, который обеспечивает двунаправленную шифрованную связь Triple DES. Этот метод также совместим с Java, Delphi, Objective-C и многими другими языками, однако такой код здесь не будет предоставлен, поскольку это не решение опубликованного вопроса.
VB.NET Тройной класс DES
Imports System
Imports System.Text
Imports System.IO
Imports System.Security.Cryptography
Public Class TripleDES
Private bPassword As Byte()
Private sPassword As String
Public Sub New(Optional ByVal Password As String = "password")
' On Class Begin
Me.Password = Password
End Sub
Public ReadOnly Property PasswordHash As String
Get
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Return UTF8.GetString(bPassword)
End Get
End Property
Public Property Password() As String
Get
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Return sPassword
End Get
Set(value As String)
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Dim HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
bPassword = HashProvider.ComputeHash(UTF8.GetBytes(value))
sPassword = value
End Set
End Property
#Region "Encrypt"
' Encrypt using Password from Property Set (pre-hashed)
Public Function Encrypt(ByVal Message As String) As String
Dim Results() As Byte
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Using HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
Dim TDESKey() As Byte = bPassword
Using TDESAlgorithm As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider() With {.Key = TDESKey, .Mode = CipherMode.ECB, .Padding = PaddingMode.PKCS7}
Dim DataToEncrypt() As Byte = UTF8.GetBytes(Message)
Try
Dim Encryptor As ICryptoTransform = TDESAlgorithm.CreateEncryptor
Results = Encryptor.TransformFinalBlock(DataToEncrypt, 0, DataToEncrypt.Length)
Finally
TDESAlgorithm.Clear()
HashProvider.Clear()
End Try
End Using
End Using
Return Convert.ToBase64String(Results)
End Function
' Encrypt using Password as byte array
Private Function Encrypt(ByVal Message As String, ByVal Password() As Byte) As String
Dim Results() As Byte
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Using HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
Dim TDESKey() As Byte = HashProvider.ComputeHash(UTF8.GetBytes(UTF8.GetString(Password)))
Using TDESAlgorithm As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider() With {.Key = TDESKey, .Mode = CipherMode.ECB, .Padding = PaddingMode.PKCS7}
Dim DataToEncrypt() As Byte = UTF8.GetBytes(Message)
Try
Dim Encryptor As ICryptoTransform = TDESAlgorithm.CreateEncryptor
Results = Encryptor.TransformFinalBlock(DataToEncrypt, 0, DataToEncrypt.Length)
Finally
TDESAlgorithm.Clear()
HashProvider.Clear()
End Try
End Using
End Using
Return Convert.ToBase64String(Results)
End Function
' Encrypt using Password as string
Public Function Encrypt(ByVal Message As String, ByVal Password As String) As String
Dim Results() As Byte
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
' Step 1. We hash the Passphrase using MD5
' We use the MD5 hash generator as the result is a 128 bit byte array
' which is a valid length for the Triple DES encoder we use below
Using HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
Dim TDESKey() As Byte = HashProvider.ComputeHash(UTF8.GetBytes(Password))
' Step 2. Create a new TripleDESCryptoServiceProvider object
' Step 3. Setup the encoder
Using TDESAlgorithm As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider() With {.Key = TDESKey, .Mode = CipherMode.ECB, .Padding = PaddingMode.PKCS7}
' Step 4. Convert the input string to a byte[]
Dim DataToEncrypt() As Byte = UTF8.GetBytes(Message)
' Step 5. Attempt to encrypt the string
Try
Dim Encryptor As ICryptoTransform = TDESAlgorithm.CreateEncryptor
Results = Encryptor.TransformFinalBlock(DataToEncrypt, 0, DataToEncrypt.Length)
Finally
' Clear the Triple Des and Hashprovider services of any sensitive information
TDESAlgorithm.Clear()
HashProvider.Clear()
End Try
End Using
End Using
' Step 6. Return the encrypted string as a base64 encoded string
Return Convert.ToBase64String(Results)
End Function
#End Region
#Region "Decrypt"
' Decrypt using Password from Property (pre-hashed)
Public Function Decrypt(ByVal Message As String) As String
Dim Results() As Byte
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Using HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
Dim TDESKey() As Byte = Me.bPassword
Using TDESAlgorithm As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider() With {.Key = TDESKey, .Mode = CipherMode.ECB, .Padding = PaddingMode.PKCS7}
Dim DataToDecrypt() As Byte = Convert.FromBase64String(Message)
Try
Dim Decryptor As ICryptoTransform = TDESAlgorithm.CreateDecryptor
Results = Decryptor.TransformFinalBlock(DataToDecrypt, 0, DataToDecrypt.Length)
Finally
TDESAlgorithm.Clear()
HashProvider.Clear()
End Try
End Using
End Using
Return UTF8.GetString(Results)
End Function
' Decrypt using Password as Byte array
Public Function Decrypt(ByVal Message As String, ByVal Password() As Byte) As String
Dim Results() As Byte
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
Using HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
Dim TDESKey() As Byte = HashProvider.ComputeHash(UTF8.GetBytes(UTF8.GetString(Password)))
Using TDESAlgorithm As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider() With {.Key = TDESKey, .Mode = CipherMode.ECB, .Padding = PaddingMode.PKCS7}
Dim DataToDecrypt() As Byte = Convert.FromBase64String(Message)
Try
Dim Decryptor As ICryptoTransform = TDESAlgorithm.CreateDecryptor
Results = Decryptor.TransformFinalBlock(DataToDecrypt, 0, DataToDecrypt.Length)
Finally
TDESAlgorithm.Clear()
HashProvider.Clear()
End Try
End Using
End Using
Return UTF8.GetString(Results)
End Function
' Decrypt using Password as string
Public Function Decrypt(ByVal Message As String, ByVal Password As String) As String
Dim Results() As Byte
Dim UTF8 As System.Text.UTF8Encoding = New System.Text.UTF8Encoding
' Step 1. We hash the pass phrase using MD5
' We use the MD5 hash generator as the result is a 128-bit byte array
' which is a valid length for the Triple DES encoder we use below
Using HashProvider As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
Dim TDESKey() As Byte = HashProvider.ComputeHash(UTF8.GetBytes(Password))
' Step 2. Create a new TripleDESCryptoServiceProvider object
' Step 3. Setup the decoder
Using TDESAlgorithm As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider() With {.Key = TDESKey, .Mode = CipherMode.ECB, .Padding = PaddingMode.PKCS7}
' Step 4. Convert the input string to a byte[]
Dim DataToDecrypt() As Byte = Convert.FromBase64String(Message)
' Step 5. Attempt to decrypt the string
Try
Dim Decryptor As ICryptoTransform = TDESAlgorithm.CreateDecryptor
Results = Decryptor.TransformFinalBlock(DataToDecrypt, 0, DataToDecrypt.Length)
Finally
' Clear the Triple Des and Hash provider services of any sensitive information
TDESAlgorithm.Clear()
HashProvider.Clear()
End Try
End Using
End Using
' Step 6. Return the decrypted string in UTF8 format
Return UTF8.GetString(Results)
End Function
#End Region
End Class
Использование класса VB.NET Triple DES
Dim tdes As New TripleDES("12345")
Dim vbEncrypted = tdes.Encrypt("Encrypted using VB.NET")
Dim phpEncrypted = "5Ittyr0+jiI7QQmPrvSVnMc9MEWQCjAN"
Debug.Print("PHP Encrypted: " & phpEncrypted)
Debug.Print("VB Encrypted: " & vbEncrypted)
Debug.Print("PHP Encrypted (decrypted result): " & tdes.Decrypt(phpEncrypted))
Debug.Print("VB Encrypted (decrypted result): " & tdes.Decrypt(vbEncrypted))
PHP Тройной класс DES
class TripleDES {
private $bPassword;
private $sPassword;
function __construct($Password) {
$this->bPassword = md5(utf8_encode($Password),TRUE);
$this->bPassword .= substr($this->bPassword,0,8);
$this->sPassword - $Password;
}
function Password($Password = "") {
if($Password == "") {
return $this->sPassword;
} else {
$this->bPassword = md5(utf8_encode($Password),TRUE);
$this->bPassword .= substr($this->bPassword,0,8);
$this->sPassword - $Password;
}
}
function PasswordHash() {
return $this->bPassword;
}
function Encrypt($Message, $Password = "") {
if($Password <> "") { $this->Password($Password); }
$size=mcrypt_get_block_size('tripledes','ecb');
$padding=$size-((strlen($Message)) % $size);
$Message .= str_repeat(chr($padding),$padding);
$encrypt = mcrypt_encrypt('tripledes',$this->bPassword,$Message,'ecb');
return base64_encode($encrypt);
}
function Decrypt($message, $Password = "") {
if($Password <> "") { $this->Password($Password); }
return trim(mcrypt_decrypt('tripledes', $this->bPassword, base64_decode($message), 'ecb'), ord(2));
}
}
Использование класса PHP Triple DES
$tdes = new TripleDES("12345");
$phpEncrypted = $tdes->encrypt("Encrypted using PHP");
$vbEncrypted = "5Ittyr0+jiI7QQmPrvSVnP3s2CeoTJmF"; // Encrypted using VB.NET
echo "PHP Encrypted: " . $phpEncrypted . '<br />';
echo "VB Encrypted: " . $vbEncrypted . '<br />';
echo "PHP Encrypted (decrypted result): " . $tdes->Decrypt($phpEncrypted) . '<br />';
echo "VB Encrypted (decrypted result): " . $tdes->Decrypt($vbEncrypted) . '<br />';
Я сделал все, что мог, чтобы уровень удобства использования обоих классов был одинаковым, насколько естественно позволяли языки. Поскольку PHP не позволяет перегружать функции, мне пришлось использовать пароль как необязательный параметр, который является строковым значением. Решение VB.NET имеет дополнительное переопределение, позволяющее передавать байтовое значение строки пароля в функциях шифрования/дешифрования. Пример кода, представленный для демонстрации использования каждого из них, показывает наиболее упрощенную форму создания экземпляра объекта, который оба класса позволяют устанавливать пароль при создании объекта.
Всем, кто ломал себе голову, пытаясь найти РАБОТАЮЩЕЕ двунаправленное решение для Triple DES (и не хотел, чтобы его навязывали в коробку, на которую все, кажется, указывают -- Rijndael), то это решение для вас, и вы можете перестать биться головой о стену.
Добавлен перевод на C# класса VB.NET TripleDES
Класс C# ( Добавлено 11 января 2017 г. )
using System;
using System.Security.Cryptography;
public class TripleDES {
private byte[] bPassword;
private string sPassword;
public TripleDES( string Password = "password" ) {
// On Class Begin
this.Password = Password;
}
public string PasswordHash {
get {
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
return UTF8.GetString( bPassword );
}
}
public string Password {
get {
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
return sPassword;
}
set {
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
bPassword = HashProvider.ComputeHash( UTF8.GetBytes( value ) );
sPassword = value;
}
}
#region "Encrypt"
// Encrypt using Password from Property Set (pre-hashed)
public string Encrypt( string Message ) {
byte[] Results = null;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
using ( MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider() ) {
byte[] TDESKey = bPassword;
using ( TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider { Key = TDESKey, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 } ) {
byte[] DataToEncrypt = UTF8.GetBytes( Message );
try {
ICryptoTransform Encryptor = TDESAlgorithm.CreateEncryptor();
Results = Encryptor.TransformFinalBlock( DataToEncrypt, 0, DataToEncrypt.Length );
} finally {
TDESAlgorithm.Clear();
HashProvider.Clear();
}
}
}
return Convert.ToBase64String( Results );
}
// Encrypt using Password as byte array
private string Encrypt( string Message, byte[] Password ) {
byte[] Results = null;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
using ( MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider() ) {
byte[] TDESKey = HashProvider.ComputeHash( UTF8.GetBytes( UTF8.GetString( Password ) ) );
using ( TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider { Key = TDESKey, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 } ) {
byte[] DataToEncrypt = UTF8.GetBytes( Message );
try {
ICryptoTransform Encryptor = TDESAlgorithm.CreateEncryptor();
Results = Encryptor.TransformFinalBlock( DataToEncrypt, 0, DataToEncrypt.Length );
} finally {
TDESAlgorithm.Clear();
HashProvider.Clear();
}
}
}
return Convert.ToBase64String( Results );
}
// Encrypt using Password as string
public string Encrypt( string Message, string Password ) {
byte[] Results = null;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
// Step 1. We hash the Passphrase using MD5
// We use the MD5 hash generator as the result is a 128 bit byte array
// which is a valid length for the Triple DES encoder we use below
using ( MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider() ) {
byte[] TDESKey = HashProvider.ComputeHash( UTF8.GetBytes( Password ) );
// Step 2. Create a new TripleDESCryptoServiceProvider object
// Step 3. Setup the encoder
using ( TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider { Key = TDESKey, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 } ) {
// Step 4. Convert the input string to a byte[]
byte[] DataToEncrypt = UTF8.GetBytes( Message );
// Step 5. Attempt to encrypt the string
try {
ICryptoTransform Encryptor = TDESAlgorithm.CreateEncryptor();
Results = Encryptor.TransformFinalBlock( DataToEncrypt, 0, DataToEncrypt.Length );
} finally {
// Clear the Triple Des and Hashprovider services of any sensitive information
TDESAlgorithm.Clear();
HashProvider.Clear();
}
}
}
// Step 6. Return the encrypted string as a base64 encoded string
return Convert.ToBase64String( Results );
}
#endregion
#region "Decrypt"
// Decrypt using Password from Property (pre-hashed)
public string Decrypt( string Message ) {
byte[] Results = null;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
using ( MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider() ) {
byte[] TDESKey = this.bPassword;
using ( TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider { Key = TDESKey, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 } ) {
byte[] DataToDecrypt = Convert.FromBase64String( Message );
try {
ICryptoTransform Decryptor = TDESAlgorithm.CreateDecryptor();
Results = Decryptor.TransformFinalBlock( DataToDecrypt, 0, DataToDecrypt.Length );
} finally {
TDESAlgorithm.Clear();
HashProvider.Clear();
}
}
}
return UTF8.GetString( Results );
}
// Decrypt using Password as Byte array
public string Decrypt( string Message, byte[] Password ) {
byte[] Results = null;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
using ( MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider() ) {
byte[] TDESKey = HashProvider.ComputeHash( UTF8.GetBytes( UTF8.GetString( Password ) ) );
using ( TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider { Key = TDESKey, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 } ) {
byte[] DataToDecrypt = Convert.FromBase64String( Message );
try {
ICryptoTransform Decryptor = TDESAlgorithm.CreateDecryptor();
Results = Decryptor.TransformFinalBlock( DataToDecrypt, 0, DataToDecrypt.Length );
} finally {
TDESAlgorithm.Clear();
HashProvider.Clear();
}
}
}
return UTF8.GetString( Results );
}
// Decrypt using Password as string
public string Decrypt( string Message, string Password ) {
byte[] Results = null;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
// Step 1. We hash the pass phrase using MD5
// We use the MD5 hash generator as the result is a 128-bit byte array
// which is a valid length for the Triple DES encoder we use below
using ( MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider() ) {
byte[] TDESKey = HashProvider.ComputeHash( UTF8.GetBytes( Password ) );
// Step 2. Create a new TripleDESCryptoServiceProvider object
// Step 3. Setup the decoder
using ( TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider { Key = TDESKey, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 } ) {
// Step 4. Convert the input string to a byte[]
byte[] DataToDecrypt = Convert.FromBase64String( Message );
// Step 5. Attempt to decrypt the string
try {
ICryptoTransform Decryptor = TDESAlgorithm.CreateDecryptor();
Results = Decryptor.TransformFinalBlock( DataToDecrypt, 0, DataToDecrypt.Length );
} finally {
// Clear the Triple Des and Hash provider services of any sensitive information
TDESAlgorithm.Clear();
HashProvider.Clear();
}
}
}
// Step 6. Return the decrypted string in UTF8 format
return UTF8.GetString( Results );
}
#endregion
}
person
Kraang Prime
schedule
12.07.2014
