php 3des pkcs7加密_PHP7.2接口加解密（3DES）openssl方式兼容旧版mcrypt

曾经终败给现在 2022-11-12 04:16 351阅读 0赞

/\*

\*2021-3-2

\*使用3DES加密

\*必须开启openssl扩展

\*算法公开，请对key严格保密

error\_reporting(0);

header("Content-Type:text/html;charset=utf-8");

class DES3

var

![math?formula=key%20%3D%20%22jt4j41n5fdefgssdfxkuxhak%22%3B%20var][math_formula_key_20_3D_20_22jt4j41n5fdefgssdfxkuxhak_22_3B_20var]iv = "xfdeqghd";

/\*

\* @title 加密

\* @param string

![math?formula=value%20%E8%A6%81%E4%BC%A0%E7%9A%84%E5%8F%82%E6%95%B0%20\*%20%40%20%2F%2FOPENSSL\_RAW\_DATA%7COPENSSL\_ZERO\_PADDING%20%2F%2FAES-128-ECB%7CAES-256-CBC%7CBF-CBC%20\*%20%40return%20json%20\*%20\*%2F%20public%20function%20encrypt(][math_formula_value_20_E8_A6_81_E4_BC_A0_E7_9A_84_E5_8F_82_E6_95_B0_20_20_40_20_2F_2FOPENSSL_RAW_DATA_7COPENSSL_ZERO_PADDING_20_2F_2FAES-128-ECB_7CAES-256-CBC_7CBF-CBC_20_20_40return_20json_20_20_2F_20public_20function_20encrypt]value)

//参考地址：https://stackoverflow.com/questions/41181905/php-mcrypt-encrypt-to-openssl-encrypt-and-openssl-zero-padding-problems\#

$value = $this->PaddingPKCS7($value);

$key = $this->key;

$iv = $this->iv;

$cipher = "DES-EDE3-CBC";

if (in\_array($cipher, openssl\_get\_cipher\_methods())) \{

$result = openssl\_encrypt($value, $cipher, $key, OPENSSL\_SSLV23\_PADDING, $iv);

return $result;

/\*\*

\* @title 解密

\* @param string $value 要传的参数

\* @return json

\* \*/

public function decrypt($value)

$key = $this->key;

$iv = $this->iv;

$decrypted = openssl\_decrypt($value, 'DES-EDE3-CBC', $key, OPENSSL\_SSLV23\_PADDING, $iv);

$ret = $this->UnPaddingPKCS7($decrypted);

return $ret;

private function PaddingPKCS7($data)

$block\_size = 8;

$padding\_char = $block\_size - (strlen($data) % $block\_size);

$data .= str\_repeat(chr($padding\_char), $padding\_char);

return $data;

private function UnPaddingPKCS7($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 from\_json($s)\{

$yz=preg\_match('/\[^,:\{\}\\\\\[\\\\\]0-9.\\-+Eaeflnr-u \\n\\r\\t\]/',$s) ? '1' : '0';

if($yz==1)\{

$arr=json\_decode($s,ture);

return $arr;

![math?formula=des%20%3D%20new%20DES3()%3B%20%2F%2F%20echo][math_formula_des_20_3D_20new_20DES3_3B_20_2F_2F_20echo]ret =

![math?formula=des-%3Eencrypt(%22a%3D1%26b%3D2%22)%20.%20%22%5Cn%22%3B%20%2F%2F%20echo][math_formula_des-_3Eencrypt_22a_3D1_26b_3D2_22_20._20_22_5Cn_22_3B_20_2F_2F_20echo]dess->from\_json(

![math?formula=dess-%3Edecrypt(][math_formula_dess-_3Edecrypt]jsonpost));

[math_formula_key_20_3D_20_22jt4j41n5fdefgssdfxkuxhak_22_3B_20var]: https://math.jianshu.com/math?formula=key%20%3D%20%22jt4j41n5fdefgssdfxkuxhak%22%3B%20var
[math_formula_value_20_E8_A6_81_E4_BC_A0_E7_9A_84_E5_8F_82_E6_95_B0_20_20_40_20_2F_2FOPENSSL_RAW_DATA_7COPENSSL_ZERO_PADDING_20_2F_2FAES-128-ECB_7CAES-256-CBC_7CBF-CBC_20_20_40return_20json_20_20_2F_20public_20function_20encrypt]: https://math.jianshu.com/math?formula=value%20%E8%A6%81%E4%BC%A0%E7%9A%84%E5%8F%82%E6%95%B0%20*%20%40%20%2F%2FOPENSSL_RAW_DATA%7COPENSSL_ZERO_PADDING%20%2F%2FAES-128-ECB%7CAES-256-CBC%7CBF-CBC%20*%20%40return%20json%20*%20*%2F%20public%20function%20encrypt%28
[math_formula_des_20_3D_20new_20DES3_3B_20_2F_2F_20echo]: https://math.jianshu.com/math?formula=des%20%3D%20new%20DES3%28%29%3B%20%2F%2F%20echo
[math_formula_des-_3Eencrypt_22a_3D1_26b_3D2_22_20._20_22_5Cn_22_3B_20_2F_2F_20echo]: https://math.jianshu.com/math?formula=des-%3Eencrypt%28%22a%3D1%26b%3D2%22%29%20.%20%22%5Cn%22%3B%20%2F%2F%20echo
[math_formula_dess-_3Edecrypt]: https://math.jianshu.com/math?formula=dess-%3Edecrypt%28