I tried to find examples relate to CryptoJS decrypt in PHP but failed with me.
In Nodejs, i use these code for decrypt:
let decrypted = CryptoJS.AES.decrypt(encrypted, key).toString(CryptoJS.enc.Utf8)
How can I decrypt the same as above in PHP ?
This is example for encrypted and key string:
encrypted:
U2FsdGVkX19K5LVvRXaJ9BIIUZexwZLXPbYRSLlN53mXahlwvEtEEPGLnzr9lWF5A97msFXZEg/tjCCv0QNfV/Pv5l6tzMmLXH4TthEDOlu7QDOxB529fDEfkOvBPnBpPXd+SijAUptLhGqEXhPbuPQLYdAwVdjPO+TnH43q6YOT7C9ClR5sf7+RKsVHzG6NdGszB8JUuhpvFYPOigUXQbD/YnAbk3hWn+odgvVIiJSSO0KWodVm7Dczr41nBO2mtJRe7hstSM93t7zwztsmXQ==
key:
0c135f43cff3e8a55a0ddb001f6293c5
Thanks.
I am trying to encrypt password with cryptojs and then I will decrypt the encrypted string on server side. I added script
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.9-1/aes.js"></script>
var key="abcdef";
var password = document.getElementById('password').value;
var encrypted = CryptoJS.AES.encrypt(password, key);
I am getting error
ReferenceError: CryptoJS is not defined
Can someone tell me how can i do encryption in jsp and decrypt it on java side with key defined on jsp.
Thank you.
I found core library and Now I can encrypt and decrypt on Jsp
var encryptedpassword=CryptoJS.AES.encrypt(password,'abcd');
var ciphertext = encryptedpassword.ciphertext.toString(CryptoJS.enc.Base64);
console.log(ciphertext);
and decrypted using following
var decryptedpassword=CryptoJS.AES.decrypt(encryptedpassword,'abcd');
var plaintext = decryptedpassword.toString(CryptoJS.enc.Utf8);
console.log(plaintext);
My problem now is I want to decrypt the encrypted password on java side can some one tell me how can I do it?
I am using RoR for server side and sending some encryption data to JS Client side. For ROR I am using OpenSSl encryption technique.
`c= OpenSSL::Cipher::Cipher.new('aes-256-cbc')
c = cipher.encrypt
c.key = Digest::SHA256.digest(key)
Base64.strict_encode64(c.update(value.to_s) + c.final)
`
This is my code for encryption in ROR
`var cipherParams:any = CryptoJS.lib.CipherParams.create({
ciphertext: CryptoJS.enc.Base64.parse(encrypted_data)
});
var digest = CryptoJS.SHA256(key.toString(CryptoJS.enc.Utf8));
let bytes = CryptoJS.AES.decrypt(cipherParams, digest, {iv: iv});
bytes.toString(CryptoJS.enc.Utf8);
`
This is my JS decryption logic
when I am encrypting some key value pair data from server I am not able to decrypt it. I am getting this error
MalFormed Utf8
but when I am trying to decrypt single value like: "5678" I am getting correct value.If I changed CryptoJS.enc.Utf8 to CryptoJS.enc.Latin1 I am getting some unreadable value but error is not showing.
I think converting it to UTF8 is giving problem.But why?
I have tried many solutions. I am using proper key and digest and IV, I have checked it multiple times, and I am also sending proper string keys and values.
I'm using Crypt::encrypt to encrypt my data and feed to Javascript code. How can I decrypt the data in Javascript?
Using laravel 5.1 and CryptoJS which can be found at (https://code.google.com/p/crypto-js/).
in .env set:
APP_KEY=uberkeythatrocks
in config/app.php set:
'cipher' => 'AES-256-CBC'
in MyController.php:
$mySecret = "Something I wanna hide from them";
$encrypted = Crypt::encrypt($mySecret);
in index.js:
var key = "uberkeythatrocks";
var decrypted = CryptoJS.AES.decrypt(encrypted, key);
var readable = decrypted.toString(CryptoJS.enc.Utf8);
IMPORTANT:
The 'key' in PHP must be the same with 'key' in JS and the 'cipher' in PHP must be the same in JS however, CryptoJS will automatically select either AES-128-CBC or AES-256-CBC depending on the length of your 'key'. Although laravel 5.1 default 'cipher' is AES-256-CBC so I would suggest you get your 'key' from .env file to use in JS.
To change or generate a new 'key' from Laravel
C:/mylaravel> php artisan key:generate [enter]
To use AES-128-CBC
Edit config/app.php and set 'cipher' => 'AES-128-CBC'
then
C:/mylaravel> php artisan key:generate [enter]
NOTE that the change of 'key' will mean that an existing user account login password will not work unless you delete the user and then create new.
HOPE THIS HELPS! :)
CryptoJs and Laravel 6 & 7.x
Place a Mix variable inside .env file
MIX_APP_KEY=${APP_KEY}
See: https://laravel.com/docs/7.x/mix#environment-variables
In /resources/assets/js/app.js add:
const CryptoJS = require("crypto-js");
window.decrypt = (encrypted) => {
let key = process.env.MIX_APP_KEY.substr(7);
var encrypted_json = JSON.parse(atob(encrypted));
return CryptoJS.AES.decrypt(encrypted_json.value, CryptoJS.enc.Base64.parse(key), {
iv : CryptoJS.enc.Base64.parse(encrypted_json.iv)
}).toString(CryptoJS.enc.Utf8);
};
And finally somewhere in your script you can decrypt like so:
console.log(decrypt(encrypted_text));
I SOLVE THIS:
I'm using Laravel Framework 5.7.28 and i want to decrypt some users passwords in my node.js application
For Decrypt in my Js file i include CryptoJS and Base64 JS
Here is the code:
$key is the APP_KEY that you have in your .env file
$encrypted is what you encrypt with the Crypt::encrypt in laravel
var CryptoJS = require("crypto-js");
var Base64 = require('js-base64').Base64;
var encrypted = '{{ $encrypted }}';
var key = "{{ $key }}";
var encrypted_json = JSON.parse(Base64.decode(encrypted));
// Now I try to decrypt it.
var decrypted = CryptoJS.AES.decrypt(encrypted_json.value, CryptoJS.enc.Base64.parse(key), {
iv : CryptoJS.enc.Base64.parse(encrypted_json.iv)
});
console.log(decrypted.toString(CryptoJS.enc.Utf8));
The answers above didn't work for me. So I tried to encrypt the string "1234" on Laravel 8 and then decrypt it on Node.js.
My actual use case is that we set our OAuth2 access token as an encrypted cookie on Laravel 8. Then our client sends HTTP-requests to a Node.js backend (microservice architecture). To validate the JWT token, the Node.js backend needs to decrypt the (Laravel)-encrypted access token first.
ENCRYPT (Laravel 8):
Open any Controller and add the following code in a function:
use Illuminate\Support\Facades\Crypt;
return Crypt::encrypt("1234");
If you now open the route, which is linked to the controller method, you get the encrypted string of "1234".
DECRYPT (Node.js)
Please make sure to install crypto-js first (https://github.com/brix/crypto-js).
Do the following steps before you run the code:
Replace "your_string_to_decrypt" by the encrypted "1234" string (you retrieved from Laravel before)
Replace "your_laravel_app_key" with your Laravel APP_KEY from your .env (remove the "base64:" part !)
Important to know: Your encryption cipher-method in Laravel is defined in config/app.php. The default is "AES-256-CBC". Crypto-Js automatically selects the right AES-cipher depending on the length of your specified key. After removing "base64:" your key should have 44 characters for using "AES-256-CBC". (https://security.stackexchange.com/questions/45318/how-long-in-letters-are-encryption-keys-for-aes#:~:text=An%20AES%20128%2Dbit%20key,hexadecimal%20string%20with%2032%20characters.)
CryptoJS supports AES-128, AES-192, and AES-256. It will pick the variant by the size of the key you pass in. If you use a passphrase, then it will generate a 256-bit key.
https://cryptojs.gitbook.io/docs/#ciphers
import CryptoJS from 'crypto-js';
let payload = "your_string_to_decrypt"
let key = "your_laravel_app_key"
let encryptStr = CryptoJS.enc.Base64.parse(payload);
let encryptData = encryptStr.toString(CryptoJS.enc.Utf8);
encryptData = JSON.parse(encryptData);
let iv = CryptoJS.enc.Base64.parse(encryptData.iv);
var decrypted = CryptoJS.AES.decrypt(encryptData.value, CryptoJS.enc.Base64.parse(key), {
iv : iv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
decrypted = CryptoJS.enc.Utf8.stringify(decrypted);
console.log(decrypted)
Finally you are done and the Node.js log shows "1234".
(Of course this is not the best code, but it shows the functionality).
References:
Node.js code: https://gist.github.com/huzemin/e8d7a904cec55d4d7635c9322f143c42
I am working on mvc application, there i am trying to encrypt my password. I have encrypted the password onclick and its working fine. How to decrypt the same value in mvc controller using CryptoJs.
Here is my code:
<script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/tripledes.js"></script>
var secretString = document.getElementById("txtPassword").value;
var password = "$1$O3JMY.Tw$AdLnLjQ/5jXF9.MTp3gHv/";
debugger;
//document.getElementById("secretstring").innerHTML = secretString;
// var pass = document.getElementById("txtPassword").value;
var encrypted = CryptoJS.TripleDES.encrypt(secretString, password);
// document.getElementById("encryptedstring").innerHTML = encrypted.toString();
//var decrypted = CryptoJS.TripleDES.decrypt(encrypted.toString(), password);
//var finaltext = decrypted.toString(CryptoJS.enc.Utf8);
//document.getElementById("txtPassword").value = encrypted;
I have to pass the encrypted value to C# code and decrypt there itself using cruptoJs.TripleDES.decrypt.
Anybody help me please?
Thanks in advance.
There is a 3DES provider in the .NET Library and here is a good example of how to use it: How to implement Triple DES in C# (complete example)
In principle, if you use 3DES on the client you just use another 3DES implementation on the server, you don't need to use the same implementation -- and since cryptoJS is JavaScript, it is mostly restricted to client-side use anyway.
That being said, your string is not sent securely over the network, because your source code clearly identifies the method + password used to encrypt. So anyone who can sniff the data going to your server can decrypt.
To really encrypt the traffic securely, you'd need to use SSL (= HTTPS).