php接口数据加密、解密、验证签名

代码很简单，这里就不多废话了，直接奉上代码

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1. <?php  
2. /** 
3.  * 数据加密，解密，验证签名 
4.  * @edit http://www.lai18.com 
5.  * @date 2015-07-08 
6.  **/  
7. //header("Content-Type: text/xml; charset=utf-8");  
8.   
9. include_once(dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR."phpsec".DIRECTORY_SEPARATOR."Math".DIRECTORY_SEPARATOR."BigInteger.php");  
10.   
11. include_once(dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR."phpsec".DIRECTORY_SEPARATOR."Crypt".DIRECTORY_SEPARATOR."AES.php");  
12.   
13. include_once(dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR."phpsec".DIRECTORY_SEPARATOR."Crypt".DIRECTORY_SEPARATOR."RSA.php");  
14.   
15. //密文  
16.   
17. $crypttext = "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";  
18.   
19. $aeskey = base64_decode("qZe60QZFxuirub2ey4+7+Q==");  
20.   
21. //AES解密，采用ECB模式  
22.   
23. $aes = new Crypt_AES(CRYPT_MODE_ECB);  
24.   
25. //设置AES密钥  
26.   
27. $aes->setKey($aeskey);  
28.   
29. //解密AES密文  
30.   
31. $plaintext = $aes->decrypt(base64_decode($crypttext));  
32.   
33. echo $plaintext;  
34.   
35. echo "<hr />";  
36.   
37. //AES加密明文  
38.   
39. //echo $aes->encrypt($plaintext);  
40.   
41. //rsa公钥  
42.   
43. $publickey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCffOeIVYut9jW5w1L5uKX4aDvd837a8JhaWm5S8YqNQfgEmfD9T+rDknXLqMT+DXeQAqGo4hBmcbej1aoMzn6hIJHk3/TfTAToNN8fgwDotHewsTCBbVkQWtDTby3GouWToVsRi1i/A0Vfb0+xM8MnF46DdhhrnZrycERBSbyrcwIDAQAB";  
44.   
45. //echo base64_decode($publickey);  
46.   
47. //rsa签名  
48.   
49. $signature = "XHin4uUFqrKDEhKBD/hQisXLFFSxM6EZCvCPqnWCQJq3uEp3ayxmFuUgVE0Xoh4AIWjIIsOWdnaToL1bXvAFKwjCtXnkaRwUpvWrk+Q0eqwsoAdywsVQDEceG5stas1CkPtrznAIW2eBGXCWspOj+aumEAcPyYDxLhDN646Krzw=";  
50.   
51. //echo base64_decode($signature);  
52.   
53. $rsa = new Crypt_RSA();  
54.   
55. //设置RSA签名模式 CRYPT_RSA_SIGNATURE_PSS or CRYPT_RSA_SIGNATURE_PKCS1  
56.   
57. $rsa->setSignatureMode(CRYPT_RSA_SIGNATURE_PKCS1);  
58.   
59. //var_dump($rsa->createKey());  
60.   
61. //生成RSA公钥、私钥  
62.   
63. //extract($rsa->createKey());  
64.   
65. //使用RSA私钥生成签名  
66.   
67. //$rsa->loadKey($privatekey);  
68.   
69. //$signature = $rsa->sign($plaintext);  
70.   
71. //使用RSA公钥验证签名  
72.   
73. echo $plaintext;  
74.   
75. $rsa->loadKey(base64_decode($publickey));  
76.   
77. echo $rsa->verify($plaintext, base64_decode($signature)) ? "verified" : "unverified";  
78.   
79. echo "<hr />";  
80.   
81. //生成RSA公钥、私钥  
82.   
83. //var_dump($rsa->createKey());  
84.   
85. extract($rsa->createKey());  
86.   
87. //使用RSA私钥加密数据  
88.   
89. $rsa->loadKey($privatekey);  
90.   
91. $ciphertext = $rsa->encrypt($plaintext);  
92.   
93. //使用RSA公钥解密数据  
94.   
95. $rsa->loadKey($publickey);  
96.   
97. echo $rsa->decrypt($ciphertext);  

每当你讲任何涉及到钱财事务等交易问题时，需要特别注意安全问题的考虑，例如开发一个论坛或者是一个购物车等。