php - 使用 CBC 模式和密钥和 IV 规范密钥的 3DES 算法进行加密的 PHP 代码

Question

我尝试使用 3des(CBC) 使用 php 中的密钥和 IV 规范密钥加密以下数据，但我没有得到与我在此在线工具上获得的相同输出（http://symmetric-ciphers.online-domain-工具网/）

//input
$data = "Id=120278;timestamp=2009-02-05 08:28:39.195";
$key = "80127ECD5E40BB25DB14354A3795880DF2B459BB08E1EE6D";
$iv = "331BA9C5A7446C98";

//output from online tool. I should get the same result in my php code
$result = "1C80CBCE1713128176499C7A3DFB8779156B31B8DEF2F667A7100F1C3AEFABACB24283CFDF 5D312D A0074897138684BC";

按照我试过的PHP代码

$string = "Id=120278;timestamp=2009-02-05 08:28:39.195";
$iv = "331BA9C5A7446C98";
$passphrase = "80127ECD5E40BB25DB14354A3795880DF2B459BB08E1EE6D"; 
$encryptedString = encryptString($string, $passphrase, $iv);

function encryptString($unencryptedText, $passphrase, $iv) { 
  $enc = mcrypt_encrypt(MCRYPT_3DES, $passphrase, $unencryptedText, MCRYPT_MODE_CBC, $iv); 
  return base64_encode($enc);
}

Answer 1

尝试这个：

 function encrypt3DES($key,$iv,$text_enc){
       $block = mcrypt_get_block_size('tripledes', 'cbc');
       $pad = $block - (strlen($text_enc) % $block);
       $text_enc .= str_repeat(chr($pad), $pad);
       $text_enc = mcrypt_encrypt(MCRYPT_3DES, $key, $text_enc, MCRYPT_MODE_CBC, $iv);
       $text_enc = base64_encode ($text_enc);
       return $text_enc;
   }