求PHP的3des中解密函数或者是方法

2008-09-28 10:43:35 297 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

PHP使用3DES算法加密解密字符串 3DES（或称为Triple DES）是三重数据加密算法（TDEA，Triple Data Encryption Algorithm）块密码的通称。它相当于是对每个数据块应用三次DES加密算法。由于计算机运算能力的增强，原版DES密码的密钥长度变得容易被暴力破解；3DES即是设计用来提供一种相对简单的方法，即通过增加DES的密钥长度来避免类似的攻击，而不是设计一种全新的块密码算法。项目阅读详情

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用CryptoJS 实现js端3des加密和解密，用openssl_encrypt实现php的3des加密解密，兼容java和C#和c++等因为要开发社交平台，涉及到聊天内容，这些敏感内容想用3des加密传输，百度了好多资料，测试了好多次，终于实现了功能，可以直接使用，这里写下来，希望帮助到其他朋友。听说微信小程序需要数据加密，相信这个能帮到大家。这里说一下，iv向量一般是8位，我的php版本是5.5.12 我原来用mcrypt_decrypt的时候，有的iv长度要8位，有的要16位... 阅读详情

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yeah920 2008-10-07

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帮忙顶一下,让了解的人来解答.

btw:他妈的，我还是CSDN论坛首页的常驻专家门诊（JAVA板块）呢，居然在JAVA板块既不能发新贴，也不能回复。

zgycsmb 2008-10-06

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学习
接分

fangsp 2008-09-28

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//how many iterations (1 for des, 3 for triple des)

  $iterations = ((strlen($key) > 8) ? 3 : 1); //changed by Paul 16/6/2007 to use Triple DES for 9+ byte keys

  //stores the return keys

  $keys = array (); // size = 32 * iterations but you don't specify this in php

  //now define the left shifts which need to be done

  $shifts = array (0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0);

  //other variables

  $m=0;

  $n=0;



  for ($j=0; $j<$iterations; $j++) { //either 1 or 3 iterations

    $left = (ord($key{$m++}) << 24) | (ord($key{$m++}) << 16) | (ord($key{$m++}) << 8) | ord($key{$m++});

    $right = (ord($key{$m++}) << 24) | (ord($key{$m++}) << 16) | (ord($key{$m++}) << 8) | ord($key{$m++});



    $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);

    $temp = (($right >> 16 & $masks[16]) ^ $left) & 0x0000ffff; $left ^= $temp; $right ^= ($temp << 16);

    $temp = (($left >> 2 & $masks[2]) ^ $right) & 0x33333333; $right ^= $temp; $left ^= ($temp << 2);

    $temp = (($right >> 16 & $masks[16]) ^ $left) & 0x0000ffff; $left ^= $temp; $right ^= ($temp << 16);

    $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);

    $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);

    $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);



    //the right side needs to be shifted and to get the last four bits of the left side

    $temp = ($left << 8) | (($right >> 20 & $masks[20]) & 0x000000f0);

    //left needs to be put upside down

    $left = ($right << 24) | (($right << 8) & 0xff0000) | (($right >> 8 & $masks[8]) & 0xff00) | (($right >> 24 & $masks[24]) & 0xf0);

    $right = $temp;



    //now go through and perform these shifts on the left and right keys

    for ($i=0; $i < count($shifts); $i++) {

      //shift the keys either one or two bits to the left

      if ($shifts[$i] > 0) {

         $left = (($left << 2) | ($left >> 26 & $masks[26]));

         $right = (($right << 2) | ($right >> 26 & $masks[26]));

      } else {

         $left = (($left << 1) | ($left >> 27 & $masks[27]));

         $right = (($right << 1) | ($right >> 27 & $masks[27]));

      }

      $left = $left & -0xf;

      $right = $right & -0xf;



      //now apply PC-2, in such a way that E is easier when encrypting or decrypting

      //this conversion will look like PC-2 except only the last 6 bits of each byte are used

      //rather than 48 consecutive bits and the order of lines will be according to 

      //how the S selection functions will be applied: S2, S4, S6, S8, S1, S3, S5, S7

      $lefttemp = $pc2bytes0[$left >> 28 & $masks[28]] | $pc2bytes1[($left >> 24 & $masks[24]) & 0xf]

              | $pc2bytes2[($left >> 20 & $masks[20]) & 0xf] | $pc2bytes3[($left >> 16 & $masks[16]) & 0xf]

              | $pc2bytes4[($left >> 12 & $masks[12]) & 0xf] | $pc2bytes5[($left >> 8 & $masks[8]) & 0xf]

              | $pc2bytes6[($left >> 4 & $masks[4]) & 0xf];

      $righttemp = $pc2bytes7[$right >> 28 & $masks[28]] | $pc2bytes8[($right >> 24 & $masks[24]) & 0xf]

                | $pc2bytes9[($right >> 20 & $masks[20]) & 0xf] | $pc2bytes10[($right >> 16 & $masks[16]) & 0xf]

                | $pc2bytes11[($right >> 12 & $masks[12]) & 0xf] | $pc2bytes12[($right >> 8 & $masks[8]) & 0xf]

                | $pc2bytes13[($right >> 4 & $masks[4]) & 0xf];

      $temp = (($righttemp >> 16 & $masks[16]) ^ $lefttemp) & 0x0000ffff; 

      $keys[$n++] = $lefttemp ^ $temp; $keys[$n++] = $righttemp ^ ($temp << 16);

    }

  } //for each iterations

  //return the keys we've created

  return $keys;

} //end of des_createKeys



////////////////////////////// TEST //////////////////////////////

function stringToHex ($s) {

  $r = "0x";

  $hexes = array ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");

  for ($i=0; $i<strlen($s); $i++) {$r .= ($hexes [(ord($s{$i}) >> 4)] . $hexes [(ord($s{$i}) & 0xf)]);}

  return $r;

}



function hexToString ($h) {

  $r = "";

  for ($i= (substr($h, 0, 2)=="0x")?2:0; $i<strlen($h); $i+=2) {$r .= chr (base_convert (substr ($h, $i, 2), 16, 10));}

  return $r;

}



echo "<PRE>";

$key = "this is a 24 byte key !!";

$message = "This is a test message";

$ciphertext = des ($key, $message, 1, 0, null);

echo "DES Test Encrypted: " . stringToHex ($ciphertext);

$recovered_message = des ($key, $ciphertext, 0, 0, null);

echo "\n";

echo "DES Test Decrypted: " . $recovered_message;

?>

枯桥断道 2008-09-28

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注意回复一为第一个方法，回复2是第二个方法。

枯桥断道 2008-09-28

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  //how many iterations (1 for des, 3 for triple des)

  $iterations = ((strlen($key) > 8) ? 3 : 1); //changed by Paul 16/6/2007 to use Triple DES for 9+ byte keys

  //stores the return keys

  $keys = array (); // size = 32 * iterations but you don't specify this in php

  //now define the left shifts which need to be done

  $shifts = array (0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0);

  //other variables

  $m=0;

  $n=0;



  for ($j=0; $j<$iterations; $j++) { //either 1 or 3 iterations

    $left = (ord($key{$m++}) << 24) | (ord($key{$m++}) << 16) | (ord($key{$m++}) << 8) | ord($key{$m++});

    $right = (ord($key{$m++}) << 24) | (ord($key{$m++}) << 16) | (ord($key{$m++}) << 8) | ord($key{$m++});



    $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);

    $temp = (($right >> 16 & $masks[16]) ^ $left) & 0x0000ffff; $left ^= $temp; $right ^= ($temp << 16);

    $temp = (($left >> 2 & $masks[2]) ^ $right) & 0x33333333; $right ^= $temp; $left ^= ($temp << 2);

    $temp = (($right >> 16 & $masks[16]) ^ $left) & 0x0000ffff; $left ^= $temp; $right ^= ($temp << 16);

    $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);

    $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);

    $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);



    //the right side needs to be shifted and to get the last four bits of the left side

    $temp = ($left << 8) | (($right >> 20 & $masks[20]) & 0x000000f0);

    //left needs to be put upside down

    $left = ($right << 24) | (($right << 8) & 0xff0000) | (($right >> 8 & $masks[8]) & 0xff00) | (($right >> 24 & $masks[24]) & 0xf0);

    $right = $temp;



    //now go through and perform these shifts on the left and right keys

    for ($i=0; $i < count($shifts); $i++) {

      //shift the keys either one or two bits to the left

      if ($shifts[$i] > 0) {

         $left = (($left << 2) | ($left >> 26 & $masks[26]));

         $right = (($right << 2) | ($right >> 26 & $masks[26]));

      } else {

         $left = (($left << 1) | ($left >> 27 & $masks[27]));

         $right = (($right << 1) | ($right >> 27 & $masks[27]));

      }

      $left = $left & -0xf;

      $right = $right & -0xf;



      //now apply PC-2, in such a way that E is easier when encrypting or decrypting

      //this conversion will look like PC-2 except only the last 6 bits of each byte are used

      //rather than 48 consecutive bits and the order of lines will be according to 

      //how the S selection functions will be applied: S2, S4, S6, S8, S1, S3, S5, S7

      $lefttemp = $pc2bytes0[$left >> 28 & $masks[28]] | $pc2bytes1[($left >> 24 & $masks[24]) & 0xf]

              | $pc2bytes2[($left >> 20 & $masks[20]) & 0xf] | $pc2bytes3[($left >> 16 & $masks[16]) & 0xf]

              | $pc2bytes4[($left >> 12 & $masks[12]) & 0xf] | $pc2bytes5[($left >> 8 & $masks[8]) & 0xf]

              | $pc2bytes6[($left >> 4 & $masks[4]) & 0xf];

      $righttemp = $pc2bytes7[$right >> 28 & $masks[28]] | $pc2bytes8[($right >> 24 & $masks[24]) & 0xf]

                | $pc2bytes9[($right >> 20 & $masks[20]) & 0xf] | $pc2bytes10[($right >> 16 & $masks[16]) & 0xf]

                | $pc2bytes11[($right >> 12 & $masks[12]) & 0xf] | $pc2bytes12[($right >> 8 & $masks[8]) & 0xf]

                | $pc2bytes13[($right >> 4 & $masks[4]) & 0xf];

      $temp = (($righttemp >> 16 & $masks[16]) ^ $lefttemp) & 0x0000ffff; 

      $keys[$n++] = $lefttemp ^ $temp; $keys[$n++] = $righttemp ^ ($temp << 16);

    }

  } //for each iterations

  //return the keys we've created

  return $keys;

} //end of des_createKeys



////////////////////////////// TEST //////////////////////////////

function stringToHex ($s) {

  $r = "0x";

  $hexes = array ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");

  for ($i=0; $i<strlen($s); $i++) {$r .= ($hexes [(ord($s{$i}) >> 4)] . $hexes [(ord($s{$i}) & 0xf)]);}

  return $r;

}



function hexToString ($h) {

  $r = "";

  for ($i= (substr($h, 0, 2)=="0x")?2:0; $i<strlen($h); $i+=2) {$r .= chr (base_convert (substr ($h, $i, 2), 16, 10));}

  return $r;

}



echo "<PRE>";

$key = "this is a 24 byte key !!";

$message = "This is a test message";

$ciphertext = des ($key, $message, 1, 0, null);

echo "DES Test Encrypted: " . stringToHex ($ciphertext);

$recovered_message = des ($key, $ciphertext, 0, 0, null);

echo "\n";

echo "DES Test Decrypted: " . $recovered_message;

?>

枯桥断道 2008-09-28

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function des_createKeys ($key) {

  //declaring this locally speeds things up a bit

  $pc2bytes0  = array (0,0x4,0x20000000,0x20000004,0x10000,0x10004,0x20010000,0x20010004,0x200,0x204,0x20000200,0x20000204,0x10200,0x10204,0x20010200,0x20010204);

  $pc2bytes1  = array (0,0x1,0x100000,0x100001,0x4000000,0x4000001,0x4100000,0x4100001,0x100,0x101,0x100100,0x100101,0x4000100,0x4000101,0x4100100,0x4100101);

  $pc2bytes2  = array (0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808,0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808);

  $pc2bytes3  = array (0,0x200000,0x8000000,0x8200000,0x2000,0x202000,0x8002000,0x8202000,0x20000,0x220000,0x8020000,0x8220000,0x22000,0x222000,0x8022000,0x8222000);

  $pc2bytes4  = array (0,0x40000,0x10,0x40010,0,0x40000,0x10,0x40010,0x1000,0x41000,0x1010,0x41010,0x1000,0x41000,0x1010,0x41010);

  $pc2bytes5  = array (0,0x400,0x20,0x420,0,0x400,0x20,0x420,0x2000000,0x2000400,0x2000020,0x2000420,0x2000000,0x2000400,0x2000020,0x2000420);

  $pc2bytes6  = array (0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002,0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002);

  $pc2bytes7  = array (0,0x10000,0x800,0x10800,0x20000000,0x20010000,0x20000800,0x20010800,0x20000,0x30000,0x20800,0x30800,0x20020000,0x20030000,0x20020800,0x20030800);

  $pc2bytes8  = array (0,0x40000,0,0x40000,0x2,0x40002,0x2,0x40002,0x2000000,0x2040000,0x2000000,0x2040000,0x2000002,0x2040002,0x2000002,0x2040002);

  $pc2bytes9  = array (0,0x10000000,0x8,0x10000008,0,0x10000000,0x8,0x10000008,0x400,0x10000400,0x408,0x10000408,0x400,0x10000400,0x408,0x10000408);

  $pc2bytes10 = array (0,0x20,0,0x20,0x100000,0x100020,0x100000,0x100020,0x2000,0x2020,0x2000,0x2020,0x102000,0x102020,0x102000,0x102020);

  $pc2bytes11 = array (0,0x1000000,0x200,0x1000200,0x200000,0x1200000,0x200200,0x1200200,0x4000000,0x5000000,0x4000200,0x5000200,0x4200000,0x5200000,0x4200200,0x5200200);

  $pc2bytes12 = array (0,0x1000,0x8000000,0x8001000,0x80000,0x81000,0x8080000,0x8081000,0x10,0x1010,0x8000010,0x8001010,0x80010,0x81010,0x8080010,0x8081010);

  $pc2bytes13 = array (0,0x4,0x100,0x104,0,0x4,0x100,0x104,0x1,0x5,0x101,0x105,0x1,0x5,0x101,0x105);

  $masks = array (4294967295,2147483647,1073741823,536870911,268435455,134217727,67108863,33554431,16777215,8388607,4194303,2097151,1048575,524287,262143,131071,65535,32767,16383,8191,4095,2047,1023,511,255,127,63,31,15,7,3,1,0);

枯桥断道 2008-09-28

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  //create the 16 or 48 subkeys we will need

  $keys = des_createKeys ($key);

  $m=0;

  $len = strlen($message);

  $chunk = 0;

  //set up the loops for single and triple des

  $iterations = ((count($keys) == 32) ? 3 : 9); //single or triple des

  if ($iterations == 3) {$looping = (($encrypt) ? array (0, 32, 2) : array (30, -2, -2));}

  else {$looping = (($encrypt) ? array (0, 32, 2, 62, 30, -2, 64, 96, 2) : array (94, 62, -2, 32, 64, 2, 30, -2, -2));}



  //pad the message depending on the padding parameter

  if ($padding == 2) $message .= "        "; //pad the message with spaces

  else if ($padding == 1) {$temp = chr (8-($len%8)); $message .= $temp . $temp . $temp . $temp . $temp . $temp . $temp . $temp; if ($temp==8) $len+=8;} //PKCS7 padding

  else if (!$padding) $message .= (chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0)); //pad the message out with null bytes



  //store the result here

  $result = "";

  $tempresult = "";



  if ($mode == 1) { //CBC mode

    $cbcleft = (ord($iv{$m++}) << 24) | (ord($iv{$m++}) << 16) | (ord($iv{$m++}) << 8) | ord($iv{$m++});

    $cbcright = (ord($iv{$m++}) << 24) | (ord($iv{$m++}) << 16) | (ord($iv{$m++}) << 8) | ord($iv{$m++});

    $m=0;

  }



  //loop through each 64 bit chunk of the message

  while ($m < $len) {

    $left = (ord($message{$m++}) << 24) | (ord($message{$m++}) << 16) | (ord($message{$m++}) << 8) | ord($message{$m++});

    $right = (ord($message{$m++}) << 24) | (ord($message{$m++}) << 16) | (ord($message{$m++}) << 8) | ord($message{$m++});



    //for Cipher Block Chaining mode, xor the message with the previous result

    if ($mode == 1) {if ($encrypt) {$left ^= $cbcleft; $right ^= $cbcright;} else {$cbcleft2 = $cbcleft; $cbcright2 = $cbcright; $cbcleft = $left; $cbcright = $right;}}



    //first each 64 but chunk of the message must be permuted according to IP

    $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);

    $temp = (($left >> 16 & $masks[16]) ^ $right) & 0x0000ffff; $right ^= $temp; $left ^= ($temp << 16);

    $temp = (($right >> 2 & $masks[2]) ^ $left) & 0x33333333; $left ^= $temp; $right ^= ($temp << 2);

    $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);

    $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);



    $left = (($left << 1) | ($left >> 31 & $masks[31])); 

    $right = (($right << 1) | ($right >> 31 & $masks[31])); 



    //do this either 1 or 3 times for each chunk of the message

    for ($j=0; $j<$iterations; $j+=3) {

      $endloop = $looping[$j+1];

      $loopinc = $looping[$j+2];

      //now go through and perform the encryption or decryption  

      for ($i=$looping[$j]; $i!=$endloop; $i+=$loopinc) { //for efficiency

        $right1 = $right ^ $keys[$i]; 

        $right2 = (($right >> 4 & $masks[4]) | ($right << 28 & 0xffffffff)) ^ $keys[$i+1];

        //the result is attained by passing these bytes through the S selection functions

        $temp = $left;

        $left = $right;

        $right = $temp ^ ($spfunction2[($right1 >> 24 & $masks[24]) & 0x3f] | $spfunction4[($right1 >> 16 & $masks[16]) & 0x3f]

              | $spfunction6[($right1 >>  8 & $masks[8]) & 0x3f] | $spfunction8[$right1 & 0x3f]

              | $spfunction1[($right2 >> 24 & $masks[24]) & 0x3f] | $spfunction3[($right2 >> 16 & $masks[16]) & 0x3f]

              | $spfunction5[($right2 >>  8 & $masks[8]) & 0x3f] | $spfunction7[$right2 & 0x3f]);

      }

      $temp = $left; $left = $right; $right = $temp; //unreverse left and right

    } //for either 1 or 3 iterations



    //move then each one bit to the right

    $left = (($left >> 1 & $masks[1]) | ($left << 31)); 

    $right = (($right >> 1 & $masks[1]) | ($right << 31)); 



    //now perform IP-1, which is IP in the opposite direction

    $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);

    $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);

    $temp = (($right >> 2 & $masks[2]) ^ $left) & 0x33333333; $left ^= $temp; $right ^= ($temp << 2);

    $temp = (($left >> 16 & $masks[16]) ^ $right) & 0x0000ffff; $right ^= $temp; $left ^= ($temp << 16);

    $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);



    //for Cipher Block Chaining mode, xor the message with the previous result

    if ($mode == 1) {if ($encrypt) {$cbcleft = $left; $cbcright = $right;} else {$left ^= $cbcleft2; $right ^= $cbcright2;}}

    $tempresult .= (chr($left>>24 & $masks[24]) . chr(($left>>16 & $masks[16]) & 0xff) . chr(($left>>8 & $masks[8]) & 0xff) . chr($left & 0xff) . chr($right>>24 & $masks[24]) . chr(($right>>16 & $masks[16]) & 0xff) . chr(($right>>8 & $masks[8]) & 0xff) . chr($right & 0xff));



    $chunk += 8;

    if ($chunk == 512) {$result .= $tempresult; $tempresult = ""; $chunk = 0;}

  } //for every 8 characters, or 64 bits in the message



  //return the result as an array

  return ($result . $tempresult);

} //end of des

枯桥断道 2008-09-28

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<?php

//des

//this takes the key, the message, and whether to encrypt or decrypt

function des ($key, $message, $encrypt, $mode, $iv, $padding) {

  //declaring this locally speeds things up a bit

  $spfunction1 = array (0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004);

  $spfunction2 = array (-0x7fef7fe0,-0x7fff8000,0x8000,0x108020,0x100000,0x20,-0x7fefffe0,-0x7fff7fe0,-0x7fffffe0,-0x7fef7fe0,-0x7fef8000,-0x80000000,-0x7fff8000,0x100000,0x20,-0x7fefffe0,0x108000,0x100020,-0x7fff7fe0,0,-0x80000000,0x8000,0x108020,-0x7ff00000,0x100020,-0x7fffffe0,0,0x108000,0x8020,-0x7fef8000,-0x7ff00000,0x8020,0,0x108020,-0x7fefffe0,0x100000,-0x7fff7fe0,-0x7ff00000,-0x7fef8000,0x8000,-0x7ff00000,-0x7fff8000,0x20,-0x7fef7fe0,0x108020,0x20,0x8000,-0x80000000,0x8020,-0x7fef8000,0x100000,-0x7fffffe0,0x100020,-0x7fff7fe0,-0x7fffffe0,0x100020,0x108000,0,-0x7fff8000,0x8020,-0x80000000,-0x7fefffe0,-0x7fef7fe0,0x108000);

  $spfunction3 = array (0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200);

  $spfunction4 = array (0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080);

  $spfunction5 = array (0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100);

  $spfunction6 = array (0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010);

  $spfunction7 = array (0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002);

  $spfunction8 = array (0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000);

  $masks = array (4294967295,2147483647,1073741823,536870911,268435455,134217727,67108863,33554431,16777215,8388607,4194303,2097151,1048575,524287,262143,131071,65535,32767,16383,8191,4095,2047,1023,511,255,127,63,31,15,7,3,1,0);









?>

枯桥断道 2008-09-28

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我这儿有两个，但是没有经过证实的。你证实一下吧。



<?php

Class Encrypt3des {

    var $key = '0E617C7A4C8FCDE90B199DA1D6D323CB04A7FB4AA80BBC7F';

    var $iv ='0102030405060708';



	function pad($text) {

		$text_add = strlen($text) % 8;



		for($i = $text_add; $i < 8; $i++) {

			$text .= chr(8 - $text_add);

		} 

		return $text;

	} 



	function unpad($text) {



		$pad = ord($text{strlen($text)-1});



		if ($pad > strlen($text)) {

			return false;

		} 

		if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) {

			return false;

		} 

		return substr($text, 0, -1 * $pad);

	} 



	function encrypt($key, $iv, $text) {



		$key_add = 24 - strlen($key);

		$key .= substr($key, 0, $key_add);



		$text = $this -> pad($text);

		$td = mcrypt_module_open (MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');



		mcrypt_generic_init ($td, $key, $iv);



		$encrypt_text = mcrypt_generic ($td, $text);



		mcrypt_generic_deinit($td);



		mcrypt_module_close($td);



		return $encrypt_text;

	} 



	function decrypt($key, $iv, $text) {

		$key_add = 24 - strlen($key);



		$key .= substr($key, 0, $key_add);



		$td = mcrypt_module_open (MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');



		mcrypt_generic_init ($td, $key, $iv);



		$text = mdecrypt_generic ($td, $text);



		mcrypt_generic_deinit($td);



		mcrypt_module_close($td);



		return $this -> unpad($text);

	} 



    function encode($text){

        $key = pack('H*',$this->key);

        $iv  = pack('H*',$this->iv);

        return $this->encrypt($key, $iv, $text);



    }



    function decode($text){

        $key = pack('H*',$this->key);

        $iv  = pack('H*',$this->iv);

        return $this->decrypt($key, $iv, $text);

    }

} 





$text = 'helloworld';



$crypt = new Encrypt3des();

print base64_encode($crypt -> encode($text));

print "<br>";

print $crypt -> decode($crypt -> encode($text));

求PHP的3des中解密函数或者是方法

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