【PHP】实现AES、DES加密解密

德心应手 發表於 2019-10-30 09:57:00

<div>1、mcrypt_encrypt DES加密，解密</div>
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<pre> 1 class Lib_desEnctyp
 2 {
 3 private $key = "";
 4 private $iv = "";
 5
 6 /**
 7 * 构造，传递二个已经进行base64_encode的KEY与IV
 8 *
 9 * @param string $key
10 * @param string $iv
11 */
12 function __construct ($key, $iv)
13 {
14 if (empty($key) || empty($iv)) {
15 echo 'key and iv is not valid';
16 exit();
17 }
18 $this->key = $key;
19 $this->iv = $iv;
20 }
21
22 /**
23 *加密
24 * @param <type> $value
25 * @return <type>
26 */
27 public function encrypt ($value)
28 {
29 $td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');
30 $iv = base64_decode($this->iv);
31 $value = $this->PaddingPKCS7($value);
32 $key = base64_decode($this->key);
33 mcrypt_generic_init($td, $key, $iv);
34 $ret = base64_encode(mcrypt_generic($td, $value));
35 mcrypt_generic_deinit($td);
36 mcrypt_module_close($td);
37 return $ret;
38 }
39
40 /**
41 *解密
42 * @param <type> $value
43 * @return <type>
44 */
45 public function decrypt ($value)
46 {
47 $td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');
48 $iv = base64_decode($this->iv);
49 $key = base64_decode($this->key);
50 mcrypt_generic_init($td, $key, $iv);
51 $ret = trim(mdecrypt_generic($td, base64_decode($value)));
52 $ret = $this->UnPaddingPKCS7($ret);
53 mcrypt_generic_deinit($td);
54 mcrypt_module_close($td);
55 return $ret;
56 }
57
58 private function PaddingPKCS7 ($data)
59 {
60 $block_size = mcrypt_get_block_size('tripledes', 'cbc');
61 $padding_char = $block_size - (strlen($data) % $block_size);
62 $data .= str_repeat(chr($padding_char), $padding_char);
63 return $data;
64 }
65
66 private function UnPaddingPKCS7($text)
67 {
68 $pad = ord($text{strlen($text) - 1});
69 if ($pad > strlen($text)) {
70 return false;
71 }
72 if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) {
73 return false;
74 }
75 return substr($text, 0, - 1 * $pad);
76 }
77 }</pre>
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<div>2、openssl  DES加密，解密</div>
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<pre> 1 /**
 2 * DES加密类
 3 * User: gaowei
 4 * Date: 2017/12/12
 5 * Time: 19:23
 6*/
 7 class DesEncrypt {
 8 private $key = "";
 9 private $iv = "";
10
11 /**
12 * 构造，传递二个已经进行base64_encode的KEY与IV
13 *
14 * @param string $key
15 * @param string $iv
16 */
17 function __construct ($key, $iv)
18 {
19 if (empty($key) || empty($iv)) {
20 echo 'key and iv is not valid';
21 exit();
22 }
23 $this->key = $key;
24 $this->iv = $iv;//8
25 //$this->iv = $iv.'00000000000';//16
26
27 }
28
29 /**
30 * @title 加密
31 * @author gaowei
32 * @date 2017/12/18
33 * @param string $value 要传的参数
34 * @ //OPENSSL_RAW_DATA|OPENSSL_ZERO_PADDING //AES-128-ECB|AES-256-CBC|BF-CBC
35 * @return json
36 * */
37 public function encrypt ($value) {
38
39 //参考地址：https://stackoverflow.com/questions/41181905/php-mcrypt-encrypt-to-openssl-encrypt-and-openssl-zero-padding-problems#
40 $value = $this->PaddingPKCS7($value);
41 $key = base64_decode($this->key);
42 $iv= base64_decode($this->iv);
43 //AES-128-ECB|不能用 AES-256-CBC|16 AES-128-CBC|16 BF-CBC|8 aes-128-gcm|需要加$tagDES-EDE3-CBC|8
44 $cipher = "DES-EDE3-CBC";
45 if (in_array($cipher, openssl_get_cipher_methods())) {
46 //$ivlen = openssl_cipher_iv_length($cipher);
47 // $iv = openssl_random_pseudo_bytes($ivlen);
48 $result = openssl_encrypt($value, $cipher, $key, OPENSSL_SSLV23_PADDING, $iv);
49 //$result = base64_encode($result); //为3的时间要用
50 //store $cipher, $iv, and $tag for decryption later
51 /* $original_plaintext = openssl_decrypt($result, $cipher, $key, OPENSSL_SSLV23_PADDING, $iv);
52 echo $original_plaintext."\n";*/
53 }
54 return $result;
55
56 }
57 /**
58 * @title 解密
59 * @author gaowei
60 * @date 2017/12/18
61 * @param string $value 要传的参数
62 * @return json
63 * */
64 public function decrypt ($value) {
65 $key = base64_decode($this->key);
66 $iv = base64_decode($this->iv);
67 $decrypted = openssl_decrypt($value, 'DES-EDE3-CBC', $key, OPENSSL_SSLV23_PADDING, $iv);
68 $ret = $this->UnPaddingPKCS7($decrypted);
69 return $ret;
70 }
71
72 private function PaddingPKCS7 ($data) {
73 //$block_size = mcrypt_get_block_size('tripledes', 'cbc');//获取长度
74 //$block_size = openssl_cipher_iv_length('tripledes', 'cbc');//获取长度
75 $block_size = 8;
76 $padding_char = $block_size - (strlen($data) % $block_size);
77 $data .= str_repeat(chr($padding_char), $padding_char);
78 return $data;
79 }
80 private function UnPaddingPKCS7($text) {
81 $pad = ord($text{strlen($text) - 1});
82 if ($pad > strlen($text)) {
83 return false;
84 }
85 if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) {
86 return false;
87 }
88 return substr($text, 0, - 1 * $pad);
89 }
90 }</pre>
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<div>3、openssl  AES加密，解密 </div>
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<pre> 1 /**
 2 * @desc：php aes加密解密类
 3 * @author hh
 4 * @date 2019/08/31
 5*/
 6 class CI_Aes{
 7 /**
 8 * CI_Aes cipher
 9 * @var string
10 */
11 protected $cipher = 'aes-128-ecb';
12 /**
13 * CI_Aes key
14 *
15 * @var string
16 */
17 protected $key;
18 /**
19 * CI_Aes constructor
20 * @param string $key Configuration parameter
21 */
22
23 public function __construct($key=null){
24 $this->key = $key;
25 }
26
27 /**
28 * Initialize
29 *
30 * @param array $params Configuration parameters
31 * @return CI_Encryption
32 */
33 public function initialize($params)
34 {
35 if (!empty($params) && is_array($params)) {
36 foreach ($params as $key => $val) {
37 $this->$key = $val;
38 }
39 }
40 }
41 /**
42 * Encrypt
43 *
44 * @param string $data Input data
45 * @return string
46 */
47 public function encrypt($data) {
48 $endata =openssl_encrypt($data, $this->cipher, $this->key, OPENSSL_RAW_DATA);
49 returnbin2hex($endata);
50 }
51
52 /**
53 * Decrypt
54 *
55 * @param string $data Encrypted data
56 * @return string
57 */
58 public function decrypt($data) {
59 $encrypted = hex2bin($data);
60 return openssl_decrypt($encrypted, $this->cipher, $this->key, OPENSSL_RAW_DATA);
61 }
62
63 }</pre>
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<div>4、其他　加密，解密</div>
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<pre> 1 //加密函数
 2 function lock_str($txt,$key='haoayou')
 3 {
 4 $chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-=+";
 5 $nh = rand(0,64);
 6 $ch = $chars[$nh];
 7 $mdKey = md5($key.$ch);
 8 $mdKey = substr($mdKey,$nh%8, $nh%8+7);
 9 $txt = base64_encode($txt);
10 $tmp = '';
11 $i=0;$j=0;$k = 0;
12 for ($i=0; $i<strlen($txt); $i++) {
13 $k = $k == strlen($mdKey) ? 0 : $k;
14 $j = ($nh+strpos($chars,$txt[$i])+ord($mdKey[$k++]))%64;
15 $tmp .= $chars[$j];
16 }
17 return urlencode($ch.$tmp);
18 }
19 //解密函数
20 function unlock_str($txt,$key='haoayou')
21 {
22 $txt = urldecode($txt);
23 $chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-=+";
24 $ch = $txt;
25 $nh = strpos($chars,$ch);
26 $mdKey = md5($key.$ch);
27 $mdKey = substr($mdKey,$nh%8, $nh%8+7);
28 $txt = substr($txt,1);
29 $tmp = '';
30 $i=0;$j=0; $k = 0;
31 for ($i=0; $i<strlen($txt); $i++) {
32 $k = $k == strlen($mdKey) ? 0 : $k;
33 $j = strpos($chars,$txt[$i])-$nh - ord($mdKey[$k++]);
34 while ($j<0) $j+=64;
35 $tmp .= $chars[$j];
36 }
37 return base64_decode($tmp);
38 }</pre>
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来源：https://www.cnblogs.com/guliang/p/11763104.html

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【PHP】实现AES、DES加密解密