需要匹配的PHP加密函数吗

3年前，我构建了一个多层应用程序，它在.NET端加密，在PHP端解密。我从未创建过相应的PHP加密函数，因为我认为我永远都不需要它。现在我知道了，我不记得我从哪里得到的PHP解密。我对php加密了解不够，无法从头开始构建它，并将其与现有的php Decrypt（）函数配合使用

我需要有人给我指出一个PHP Encrypt（）函数，我的PHP Decrypt（）将对其进行正确的解密。详情如下

.NET加密功能：

private string Encrypt(string plainText)
{
    if (string.IsNullOrEmpty(plainText))
        return string.Empty;

    string passPhrase = "secret1";
    string saltValue = "secret2";
    int passwordIterations = 1000;
    string initVector = "pOWaTbO92LfXbh69JkYzfT7P465TNc0h";
    int keySize = 256;

    byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector);
    byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue);
    byte[] plainTextBytes = Encoding.UTF8.GetBytes(plainText);

    Rfc2898DeriveBytes password = new Rfc2898DeriveBytes(passPhrase, saltValueBytes, passwordIterations);

    byte[] keyBytes = password.GetBytes(keySize / 8);

    // Create uninitialized Rijndael encryption object.
    RijndaelManaged symmetricKey = new RijndaelManaged();
    symmetricKey.BlockSize = 256;
    symmetricKey.KeySize = 256;
    symmetricKey.Padding = PaddingMode.Zeros;
    symmetricKey.Mode = CipherMode.CBC;

    ICryptoTransform encryptor = symmetricKey.CreateEncryptor(keyBytes, initVectorBytes);
    MemoryStream memoryStream = new MemoryStream();
    CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write);
    cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length);
    cryptoStream.FlushFinalBlock();
    byte[] cipherTextBytes = memoryStream.ToArray();
    memoryStream.Close();
    cryptoStream.Close();
    string cipherText = Convert.ToBase64String(cipherTextBytes);
    return cipherText;
}

function Decrypt($encryptedText) {
    $p = "secret1";
    $s = "secret2";
    $iv = "pOWaTbO92LfXbh69JkYzfT7P465TNc0h";
    $c = 1000;
    $kl = 32;
    $a = 'sha1';
    $hl = strlen(hash($a, null, true)); # Hash length
    $kb = ceil($kl / $hl);              # Key blocks to compute
    $dk = '';                           # Derived key

    # Create key
    for ( $block = 1; $block <= $kb; $block ++ ) {

        # Initial hash for this block
        $ib = $b = hash_hmac($a, $s . pack('N', $block), $p, true);

        # Perform block iterations
        for ( $i = 1; $i < $c; $i ++ )

            # XOR each iterate
            $ib ^= ($b = hash_hmac($a, $b, $p, true));

        $dk .= $ib; # Append iterated block
    }

    $key = substr($dk, 0, $kl);
    $plainText = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($encryptedText), MCRYPT_MODE_CBC, $iv));

    $textArray = str_split($plainText);
    foreach($textArray as $char) {
        $ascii = ord($char);
        if($ascii < 32 || $ascii > 127){
            return "";
        }
    }

    return $plainText;
}

PHP解密函数：

private string Encrypt(string plainText)
{
    if (string.IsNullOrEmpty(plainText))
        return string.Empty;

    string passPhrase = "secret1";
    string saltValue = "secret2";
    int passwordIterations = 1000;
    string initVector = "pOWaTbO92LfXbh69JkYzfT7P465TNc0h";
    int keySize = 256;

    byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector);
    byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue);
    byte[] plainTextBytes = Encoding.UTF8.GetBytes(plainText);

    Rfc2898DeriveBytes password = new Rfc2898DeriveBytes(passPhrase, saltValueBytes, passwordIterations);

    byte[] keyBytes = password.GetBytes(keySize / 8);

    // Create uninitialized Rijndael encryption object.
    RijndaelManaged symmetricKey = new RijndaelManaged();
    symmetricKey.BlockSize = 256;
    symmetricKey.KeySize = 256;
    symmetricKey.Padding = PaddingMode.Zeros;
    symmetricKey.Mode = CipherMode.CBC;

    ICryptoTransform encryptor = symmetricKey.CreateEncryptor(keyBytes, initVectorBytes);
    MemoryStream memoryStream = new MemoryStream();
    CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write);
    cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length);
    cryptoStream.FlushFinalBlock();
    byte[] cipherTextBytes = memoryStream.ToArray();
    memoryStream.Close();
    cryptoStream.Close();
    string cipherText = Convert.ToBase64String(cipherTextBytes);
    return cipherText;
}

function Decrypt($encryptedText) {
    $p = "secret1";
    $s = "secret2";
    $iv = "pOWaTbO92LfXbh69JkYzfT7P465TNc0h";
    $c = 1000;
    $kl = 32;
    $a = 'sha1';
    $hl = strlen(hash($a, null, true)); # Hash length
    $kb = ceil($kl / $hl);              # Key blocks to compute
    $dk = '';                           # Derived key

    # Create key
    for ( $block = 1; $block <= $kb; $block ++ ) {

        # Initial hash for this block
        $ib = $b = hash_hmac($a, $s . pack('N', $block), $p, true);

        # Perform block iterations
        for ( $i = 1; $i < $c; $i ++ )

            # XOR each iterate
            $ib ^= ($b = hash_hmac($a, $b, $p, true));

        $dk .= $ib; # Append iterated block
    }

    $key = substr($dk, 0, $kl);
    $plainText = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($encryptedText), MCRYPT_MODE_CBC, $iv));

    $textArray = str_split($plainText);
    foreach($textArray as $char) {
        $ascii = ord($char);
        if($ascii < 32 || $ascii > 127){
            return "";
        }
    }

    return $plainText;
}

函数解密（$encryptedText）{
$p=“secret1”；
$s=“secret2”；
$iv=“pOWaTbO92LfXbh69JkYzfT7P465TNc0h”；
$c=1000；
$kl=32；
$a='sha1'；
$hl=strlen（散列（$a，null，true））；#散列长度
$kb=ceil（$kl/$hl）#要计算的关键块
$dk=''；#派生密钥
#创建密钥
对于（$block=1；$block 127）{
返回“”；
}
}
返回$plainText；
}

My.NET Encrypt（）和PHP Decrypt（）配合得很好，没有问题。是否有一个PHP加密英雄可以向我展示一个与发布的PHP Decrypt（）函数一起工作的PHP Encrypt（）函数

---

一个加密示例：“SnoqL/xcgfFBkhZld+QXRnsl7zS9viJpJsbm4MocDUQ=”解密到字符串“443”。没有引号。

下面是带证明的加密代码。我认为这是一个测试使用my函数加密，作为解密函数的输入，该函数将成功解密并打印“这是一个测试！”到屏幕上

<?

echo Decrypt(Encrypt('This is a test!'));

function Encrypt($plainText) {
  $key = createKey();
  $encryptedText = rtrim(base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $plainText, MCRYPT_MODE_CBC, "pOWaTbO92LfXbh69JkYzfT7P465TNc0h")));

  return $encryptedText;
}

function Decrypt($encryptedText) {
  $key = createKey();
  $plainText = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($encryptedText), MCRYPT_MODE_CBC, "pOWaTbO92LfXbh69JkYzfT7P465TNc0h"));

  return $plainText;
}

function createKey() {
  $p = "secret1";
  $s = "secret2";
  $dk = '';

  for ($block = 1; $block <= 2; $block++) {
    $ib = $b = hash_hmac('sha1', $s . pack('N', $block), $p, true);

    for ($i = 1; $i < 1000; $i++)
      $ib ^= ($b = hash_hmac('sha1', $b, $p, true));
      $dk .= $ib;
  }

  return substr($dk, 0, 32);
}

---

“SnoqL/xcgfFBkhZld+QXRnsl7zS9viJpJsbm4MocDUQ=”解密到字符串“443”。没有引用。这个问题可能被否决了，因为StackOverflow不是一个代码编写服务。