PHP通过OpenSSL生成证书、密钥并且加密解密数据

关于PHP生成证书密钥的资料真是好少啊，查了半天，最终还是在官方文档找到了相关资料，又根据自己的理解，整理成了以下代码，分成两部分：生成证书密钥、加密解密数据。直接复制下来做成两个文件运行就好啦。已经写了详细的注释，相信php程序员都能看得懂。

generate.php

1. $dn = array(
2. "countryName" => 'XX', //所在国家名称
3. "stateOrProvinceName" => 'State', //所在省份名称
4. "localityName" => 'SomewhereCity', //所在城市名称
5. "organizationName" => 'MySelf', //注册人姓名
6. "organizationalUnitName" => 'Whatever', //组织名称
7. "commonName" => 'mySelf', //公共名称
8. "emailAddress" => '[e-mail]' //邮箱
9. );
11. $privkeypass = '111111'; //私钥密码
12. $numberofdays = 365; //有效时长
13. $cerpath = "./test.cer"; //生成证书路径
14. $pfxpath = "./test.pfx"; //密钥文件路径
17. //生成证书
18. $privkey = openssl_pkey_new();
19. $csr = openssl_csr_new($dn, $privkey);
20. $sscert = openssl_csr_sign($csr, null, $privkey, $numberofdays);
21. openssl_x509_export($sscert, $csrkey); //导出证书$csrkey
22. openssl_pkcs12_export($sscert, $privatekey, $privkey, $privkeypass); //导出密钥$privatekey
23. //生成证书文件
24. $fp = fopen($cerpath, "w");
25. fwrite($fp, $csrkey);
26. fclose($fp);
27. //生成密钥文件
28. $fp = fopen($pfxpath, "w");
29. fwrite($fp, $privatekey);
30. fclose($fp);
31. ?>

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crypt.php

1. $privkeypass = '111111'; //私钥密码
2. $pfxpath = "./test.pfx"; //密钥文件路径
3. $priv_key = file_get_contents($pfxpath); //获取密钥文件内容
4. $data = "test"; //加密数据测试test
6. //私钥加密
7. openssl_pkcs12_read($priv_key, $certs, $privkeypass); //读取公钥、私钥
8. $prikeyid = $certs['pkey']; //私钥
9. openssl_sign($data, $signMsg, $prikeyid,OPENSSL_ALGO_SHA1); //注册生成加密信息
10. $signMsg = base64_encode($signMsg); //base64转码加密信息
13. //公钥解密
14. $unsignMsg=base64_decode($signMsg);//base64解码加密信息
15. openssl_pkcs12_read($priv_key, $certs, $privkeypass); //读取公钥、私钥
16. $pubkeyid = $certs['cert']; //公钥
17. $res = openssl_verify($data, $unsignMsg, $pubkeyid); //验证
18. echo $res; //输出验证结果，1：验证成功，0：验证失败
19. ?>

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加密解密, PHP, OpenSSL