1 <?php
2
3 class Ecdsa
4 {
5 private $alg;
6
7 public function __construct() {
8 $this->alg = OPENSSL_ALGO_SHA256;
9 }
10
11 /**
12 * 加密
13 * @param privateKeyString 私钥
14 * @param message 请求数据（数组）
15 */
16 public function php_encry($privateKeyString = '', $message = []) {
17 $privateKey = openssl_get_privatekey($privateKeyString);
18
19 $message = json_encode($message, JSON_PRETTY_PRINT);
20
21 $signature = null;
22 if (openssl_sign($message, $signature, $privateKey, $this->alg)) {
23 $signature = base64_encode($signature);
24 return $signature;
25 } else {
26 return openssl_error_string();
27 }
28 }
29
30 /**
31 * 验签
32 * @param publicKeyString 公钥
33 * @param message 请求json串
34 * @param signature base64加密后的字符串
35 */
36 public function php_decry($publicKeyString = '', $message = [], $signature = '') {
37 $publicKey = openssl_get_publickey($publicKeyString);
38
39 $message = json_encode($message, JSON_PRETTY_PRINT);
40
41 $return = [
42 'code' => 0,
43 'message' => 'error'
44 ];
45
46 //验证签名
47 $success = openssl_verify($message, base64_decode($signature), $publicKey, $this->alg);
48 if ($success === -1) {
49 $return['message'] = openssl_error_string();
50 return $return;
51 } elseif ($success === 1) {
52 $return['code'] = 1;
53 $return['message'] = 'success';
54 return $return;
55 } else {
56 $return['message'] = openssl_error_string();
57 return $return;
58 }
59 }
60 }
61
62 //var_dump(openssl_get_md_methods());die;
63
64 $ec = new Ecdsa();
65
66 $private_key = 'MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQglCkOi90fqXJ3u1J0l1RwP0FTfv08
67 LYzSwj+B0vAJq3ehRANCAARu/5R3QWhJ6EBK/UTL7Zg/IP4ixFFZAcMMNnRdwKSopGhwxhksw93F
68 ZeH5f7RUSL8m5rNLrKyIm/AhpOFd2LJe';
69
70 $privateKeyString =
71 "-----BEGIN EC PARAMETERS-----
72 BgUrgQQACg==
73 -----END EC PARAMETERS-----
74 -----BEGIN EC PRIVATE KEY-----
75 ".$private_key."
76 -----END EC PRIVATE KEY-----";
77
78 $public_key = 'MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEbv+Ud0FoSehASv1Ey+2YPyD+IsRRWQHDDDZ0XcCkqKRocMYZLMPdxWXh+X+0VEi/JuazS6ysiJvwIaThXdiyXg==';
79 $publicKeyString =
80 "-----BEGIN PUBLIC KEY-----
81 ".$public_key."
82 -----END PUBLIC KEY-----";
83
84 $message = '欧阳草帽';
85
86 $sign = $ec->php_encry($privateKeyString, $message);
87 echo $sign.'<br>';
88 $res = $ec->php_decry($publicKeyString, $message, $sign);
89 echo $res['message'];
