Name: javascript - Encryption in JS and Decryption in PHP (RSA)
Rating: 3 (6143 reviews)

Message:

I use the library "JSEncrypt" for JS

HTML & JS & AJAX to PHP (send encrypted text to php file for decryted)

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>RSA js - php</title>

    <script type="text/javascript" src="https://passport.cnblogs.com/scripts/jsencrypt.min.js"></script>

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>

</head>

<body>



<script>



var encrypt = new JSEncrypt();

const servPubKeyPem = '-----BEGIN PUBLIC KEY-----\

MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEApa35WYXLyAIoIikbTU7J\

qQyltZX+zj8ea2bwCcs0rVcpSqMsYYWElQhvGXwSG1Dnd1jY3kNoqOvxb0oRToPj\

wLtx4xLh/RrH5eb9Xhssmo+KYhHFPu/FDBeAy4RQyP/Rv4CIIjWscj3aCiBDPrrM\

S6olwPtCRPsszG4TuUe29pW60JNCnU/1o+7rfjOCecdJpvVvqRW2vN4yxgkjAsf6\

UYyrnd9NXCaElG7X3jYKX84PSBTfttIHUthu+u37FLFUoKOZwqO4Lv0OfacevFCJ\

T4OoMnibeiygSVu8y94MtODp2SMCJ2OteKz8/11uzU27T4x9odS/DrevBebY2V5I\

94cpjyHVzJvNxqrwQ7nNOk0Y7rPvLvKfIGXXD708LRqMNpYZwj9Wu4aOXaxC6myW\

lguGT+OX3TfFzQ1dLyslGTiuy9f41AOJiK+PUnTZh84UALtnSnS62bM39+OaWHZc\

xlI7lHDK8mYxgzp9Us6WvLRBH15j3sSNV+GWCLOIk8Y6UIV/RYMCUNdVahiVqOH8\

0vevhdGZQHTLKmNdaiqCOI9R0hZLbFLzkph/kNnFKRlI0MoYn8Tqg2BRIPFYizPf\

eK+y4nmvJhmiMq3ZzUmVApt2deufZIJmNfqmnDyMKOICnYxcH0zJCrKmBmlM9u1i\

PMIXYCIshW2D3E1ACCPOw3ECAwEAAQ==\

-----END PUBLIC KEY-----'

    encrypt.setPublicKey(servPubKeyPem);

    var encryptedText = encrypt.encrypt('Hello my friend!');



    $.ajax({

        type: "POST",

        url: 'test.php',

        data: {'encryptedText' : encryptedText},

        success: function(data) {

            

        }

    });

</script>



</body>

</html>

PHP:

<?php



    $encryptedText = $_POST['encryptedText'];



    $priKeyPem = file_get_contents('../php/priKey.pem');

    

    $priKey = openssl_pkey_get_private($priKeyPem); //PriKey - PrivateKey - (he is work) 

  openssl_private_decrypt($encryptedText, $decryptedText, $priKey);



    # but $decryptedText == null ...



?>

I need to encrypt the text in JS pass the encrypted text in PHP and in PHP decrypt it, but in PHP I get "null"... Please help :/

My Answer:
CryptoJS for encryption in JavaScript and the library phpseclib for decryption in PHP using RSA encryption.

Here is an example of how you can encrypt a message in JavaScript using CryptoJS:

javascript

const message = 'Hello, world!';

const publicKey = '-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz8z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z2z3z

John Davidson

javascript - Encryption in JS and Decryption in PHP (RSA)

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