非对称加密提交表单到PHP

2023年4月29日 189次阅读 来源: 加密算法

非对称加密提交表单到PHP

首先用openssl工具生成一对RSA非对称密钥

openssl genrsa -out rsa_1024_priv.pem 1024
openssl rsa -pubout -in rsa_1024_priv.pem -out rsa_1024_pub.pem

然后在前端引入jsencrypt库,用于非对称加密,再绑定submit的onclick事件,对表单需加密数据进行加密处理

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/controller.php" id="form" method="post">
    username:
    <input type="text" name="username">
    password:
    <input type="password" name="password">
    <input type="submit">
</form>
</body>
<script src="http://cdn.bootcss.com/jsencrypt/2.3.0/jsencrypt.min.js"></script>
<script>
    var form_ele = document.getElementById('form');
    var password_ele = form_ele.querySelector('[name=password]');
    var submit_ele = form_ele.querySelector('[type=submit]');

    submit_ele.onclick = function (e) {

        var password = password_ele.value;

        var encrypt = new JSEncrypt();
        var publickey = '-----BEGIN PUBLIC KEY-----\
        MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC7xzfMsVgFc/q1wUQ7vAUU7CD8\
        W5eq0PnJb0Hv7Py1GQ+qYaqiasOqOr6T2FizbzSbXd+ZirEiZVdtFX9nKK4OlVHR\
        zDSGulioUESLUuNQau0BeWFsEwxCMIMkAMM1fI5zDMp1PvxULdC5hFTLDXNCf5DY\
        Yl4Xkc1LNsa4XYQV1QIDAQAB\
        -----END PUBLIC KEY-----';
        encrypt.setPublicKey(publickey);

        password = encrypt.encrypt(password);

        password_ele.value = password;

        form_ele.submit();
        return false;
    }
</script>
</html>

然后就可以在后端PHP中通过openssl_private_decrypt方法解析传输过来的加密数据了

<?php

$privatekey = '-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----';

if (openssl_private_decrypt(base64_decode($_POST['password']), $decrypted, $privatekey)) {
    echo $decrypted . "\n";
} else {
    echo 'error';
}
    原文作者：加密算法
    原文地址: https://segmentfault.com/a/1190000006994742
    本文转自网络文章，转载此文章仅为分享知识，如有侵权，请联系博主进行删除。
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