Convertir crypter et décrypter la fonction C# à la fonction PHP

Question

Je voudrais convertir la fonction C# en fonction PHP. Voici le lien à la fonction en C#: https://stackoverflow.com/a/19441805/3581428

public static string Encrypt(string clearText) 
{ 
    string EncryptionKey = "MAKV2SPBNI99212"; 
    byte[] clearBytes = Encoding.Unicode.GetBytes(clearText); 
    using (Aes encryptor = Aes.Create()) 
    { 
     Rfc2898DeriveBytes pdb = new 
      Rfc2898DeriveBytes(EncryptionKey, new byte[] 
      { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 }); 
     encryptor.Key = pdb.GetBytes(32); 
     encryptor.IV = pdb.GetBytes(16); 
     using (MemoryStream ms = new MemoryStream()) 
     { 
      using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateEncryptor(), CryptoStreamMode.Write)) 
      { 
       cs.Write(clearBytes, 0, clearBytes.Length); 
       cs.Close(); 
      } 
      clearText = Convert.ToBase64String(ms.ToArray()); 
     } 
    } 
    return clearText; 
} 

public static string Decrypt(string cipherText) 
{ 
    string EncryptionKey = "MAKV2SPBNI99212"; 
    byte[] cipherBytes = Convert.FromBase64String(cipherText); 
    using (Aes encryptor = Aes.Create()) 
    { 
     Rfc2898DeriveBytes pdb = new 
      Rfc2898DeriveBytes(EncryptionKey, new byte[] 
      { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 }); 
     encryptor.Key = pdb.GetBytes(32); 
     encryptor.IV = pdb.GetBytes(16); 
     using (MemoryStream ms = new MemoryStream()) 
     { 
      using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateDecryptor(), CryptoStreamMode.Write)) 
      { 
       cs.Write(cipherBytes, 0, cipherBytes.Length); 
       cs.Close(); 
      } 
      cipherText = Encoding.Unicode.GetString(ms.ToArray()); 
     } 
    } 
    return cipherText; 
} 

J'ai essayé dans la fonction ci-dessous, mais il a créé différentes chaînes Encrypted:

function encrypt_decrypt($action, $string) { 
    $output = false; 

$encrypt_method = "AES-256-CBC"; 
$secret_key = '3sc3RLrpd17'; 

$secret_iv=chr(0x49).chr(0x76).chr(0x61).chr(0x6e).chr(0x20).chr(0x4d).chr(0x65).chr(0x64).chr(0x76).chr(0x65).chr(0x64).chr(0x65).chr(0x76); 


$key = substr(hash('sha1', $secret_key), 0, 32);; 
//echo "key: ".$key."<br>"; 

$iv = substr(hash('sha1', $secret_iv), 0, 16); 
//echo "iv key: ".$iv."<br>"; 
if($action == 'encrypt') { 
    $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv); 
    $output = base64_encode($output); 
} 
else if($action == 'decrypt'){ 
    $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv); 
} 

return $output; 
} 

$plain_txt = "1122334411223344"; 
echo "Plain Text = $plain_txt\n"."<br/>"; 

$encrypted_txt = encrypt_decrypt('encrypt', $plain_txt); 
echo "Encrypted Text = $encrypted_txt\n"."<br/>"; 

$decrypted_txt = encrypt_decrypt('decrypt', $encrypted_txt); 
echo "Decrypted Text = $decrypted_txt\n"."<br/>"; 

if($plain_txt === $decrypted_txt) echo "SUCCESS"."<br/>"; 
else echo "FAILED"."<br/>"; 

echo "\n"."<br/>"; 
exit; 

Chaîne Encrypted en utilisant la méthode C#:

thkTvpUmSWV9lKAOfWNIIu9n7jHcku7C6WDD/hsvll+xjqOWdk3fyI+eRhBbvJlX 

La longueur est 64

Chaîne cryptée Usi ng méthode PHP:

OTlIYXJDcTl0SVpKRlhaV0l3dFk1ZjFYM3FPcHB3ckdTRERITGhHVEVoTT0= 

Longueur 60 est

Comment puis-je générer même chaîne Encrypted que la fonction C#? Comment puis-je répliquer la fonction C# pour PHP?

capable de créer Longueur Encrypted texte de 64 en utilisant cet exemple lien: AES ENCRYPTION 64 length encrypted string

Answer 1

S'il vous plaît essayez ceci (beta):

PHP

<?php 

$plaintext = 'My secret message 1234'; 
$password = '3sc3RLrpd17'; 
$method = 'aes-256-cbc'; 

// Must be exact 32 chars (256 bit) 
$password = substr(hash('sha256', $password, true), 0, 32); 
echo "Password:" . $password . "\n"; 

// IV must be exact 16 chars (128 bit) 
$iv = chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0); 

// av3DYGLkwBsErphcyYp+imUW4QKs19hUnFyyYcXwURU= 
$encrypted = base64_encode(openssl_encrypt($plaintext, $method, $password, OPENSSL_RAW_DATA, $iv)); 

// My secret message 1234 
$decrypted = openssl_decrypt(base64_decode($encrypted), $method, $password, OPENSSL_RAW_DATA, $iv); 

echo 'plaintext=' . $plaintext . "\n"; 
echo 'cipher=' . $method . "\n"; 
echo 'encrypted to: ' . $encrypted . "\n"; 
echo 'decrypted to: ' . $decrypted . "\n\n"; 

exit; 

C#

public string EncryptString(string plainText, byte[] key, byte[] iv) 
    { 
     // Instantiate a new Aes object to perform string symmetric encryption 
     Aes encryptor = Aes.Create(); 

     encryptor.Mode = CipherMode.CBC; 
     //encryptor.KeySize = 256; 
     //encryptor.BlockSize = 128; 
     //encryptor.Padding = PaddingMode.Zeros; 

     // Set key and IV 
     encryptor.Key = key; 
     encryptor.IV = iv; 

     // Instantiate a new MemoryStream object to contain the encrypted bytes 
     MemoryStream memoryStream = new MemoryStream(); 

     // Instantiate a new encryptor from our Aes object 
     ICryptoTransform aesEncryptor = encryptor.CreateEncryptor(); 

     // Instantiate a new CryptoStream object to process the data and write it to the 
     // memory stream 
     CryptoStream cryptoStream = new CryptoStream(memoryStream, aesEncryptor, CryptoStreamMode.Write); 

     // Convert the plainText string into a byte array 
     byte[] plainBytes = Encoding.ASCII.GetBytes(plainText); 

     // Encrypt the input plaintext string 
     cryptoStream.Write(plainBytes, 0, plainBytes.Length); 

     // Complete the encryption process 
     cryptoStream.FlushFinalBlock(); 

     // Convert the encrypted data from a MemoryStream to a byte array 
     byte[] cipherBytes = memoryStream.ToArray(); 

     // Close both the MemoryStream and the CryptoStream 
     memoryStream.Close(); 
     cryptoStream.Close(); 

     // Convert the encrypted byte array to a base64 encoded string 
     string cipherText = Convert.ToBase64String(cipherBytes, 0, cipherBytes.Length); 

     // Return the encrypted data as a string 
     return cipherText; 
    } 

    public string DecryptString(string cipherText, byte[] key, byte[] iv) 
    { 
     // Instantiate a new Aes object to perform string symmetric encryption 
     Aes encryptor = Aes.Create(); 

     encryptor.Mode = CipherMode.CBC; 
     //encryptor.KeySize = 256; 
     //encryptor.BlockSize = 128; 
     //encryptor.Padding = PaddingMode.Zeros; 

     // Set key and IV 
     encryptor.Key = key; 
     encryptor.IV = iv; 

     // Instantiate a new MemoryStream object to contain the encrypted bytes 
     MemoryStream memoryStream = new MemoryStream(); 

     // Instantiate a new encryptor from our Aes object 
     ICryptoTransform aesDecryptor = encryptor.CreateDecryptor(); 

     // Instantiate a new CryptoStream object to process the data and write it to the 
     // memory stream 
     CryptoStream cryptoStream = new CryptoStream(memoryStream, aesDecryptor, CryptoStreamMode.Write); 

     // Will contain decrypted plaintext 
     string plainText = String.Empty; 

     try 
     { 
      // Convert the ciphertext string into a byte array 
      byte[] cipherBytes = Convert.FromBase64String(cipherText); 

      // Decrypt the input ciphertext string 
      cryptoStream.Write(cipherBytes, 0, cipherBytes.Length); 

      // Complete the decryption process 
      cryptoStream.FlushFinalBlock(); 

      // Convert the decrypted data from a MemoryStream to a byte array 
      byte[] plainBytes = memoryStream.ToArray(); 

      // Convert the decrypted byte array to string 
      plainText = Encoding.ASCII.GetString(plainBytes, 0, plainBytes.Length); 
     } 
     finally 
     { 
      // Close both the MemoryStream and the CryptoStream 
      memoryStream.Close(); 
      cryptoStream.Close(); 
     } 

     // Return the decrypted data as a string 
     return plainText; 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     string message = "My secret message 1234"; 
     string password = "3sc3RLrpd17"; 

     // Create sha256 hash 
     SHA256 mySHA256 = SHA256Managed.Create(); 
     byte[] key = mySHA256.ComputeHash(Encoding.ASCII.GetBytes(password)); 

     // Create secret IV 
     byte[] iv = new byte[16] { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }; 

     string encrypted = this.EncryptString(message, key, iv); 
     string decrypted = this.DecryptString(encrypted, key, iv); 

     Console.WriteLine(encrypted); 
     Console.WriteLine(decrypted); 
    }