aes.js | Small AES encryption for study purpose | Encryption library
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Small AES encryption for study purpose. Feat. Functional Programming
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QUESTION
I am using the below script: -
...ANSWER
Answered 2021-Jun-02 at 17:24The error message seems fairly straight-forward to me: the key size you used isn't supported by that library. In fact, you appear to have only pasted part of the message, which goes on to list the key sizes which are supported: https://github.com/phpseclib/phpseclib/blob/7e38313802b62606cf27ddf573a7c47e88b5d33f/phpseclib/Crypt/AES.php#L118
'Key of size ' . strlen($key) . ' not supported by this algorithm. Only keys of sizes 16, 24 or 32 supported'
So your problem is not understanding what the PHP can do, but understanding what the JS is doing with your input.
The clue to that is in the CryptoJS docs:
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.
So the library agrees that there are three valid key lengths, but supports passing in a "passphrase" instead which will be used to generate a key. The exact algorithm it uses to do that isn't documented; presumably it uses some Key Derivation Function with fixed parameters, so that the same passphrase will always produce the same key. If you really need to emulate it, you'll need to trace through the source code.
If you just need code that's compatible with both libraries, generate a random key of one of the supported lengths, and use that in both places.
QUESTION
I want to get JSON data from Site
Nothing shows up about it and Xamarin and I tried these 3 from youtube and it didn't work for me
...ANSWER
Answered 2020-Nov-02 at 09:13try this! working example
QUESTION
I have a question regarding the usage of ES6 modules within Safari. It's driving me crazy because it prevents me from sharing my website with Safari users.
My web application and the coming up MWE work perfectly fine in the following environments:
- Windows: Chrome, Edge and Firefox both via a Windows local server (WAMP) and via my web server;
- Mobile: Chrome, Firefox (both in Android and iOS). Even Samsung Mobile and Opera for Android work fine.
- MacOS:
- on Safari, Chrome and Firefox via a Mac local server (AMPPS);
- on Chrome and Firefox via my web server.
However, my web application does not work within MacOS Safari via my web server (at the moment I'm trying this code on Safari 13.0.4, but all modern versions of the mentioned browsers behave the same way with respect to this problem). Similarly, it does not work within the latest version of iOS Safari.
MWE
./test_class.js
...ANSWER
Answered 2020-May-30 at 16:18In web development we develop using ES6 and ES7 but those are not supported yet in all browsers.
In order to ship the working code in most browsers (Safari - Chrome - IE9 )
and does not matter the browser. You supposed to use a build process like ( webpack - gulp - grant ) or using existing libraries like ( React, Angular and VUE )
Example: For starting using webpack https://webpack.js.org/guides/getting-started/
witch will grant you get a complete working code by converting all your code into ES5 and bundle that code to ensure reducing chuck sizes
QUESTION
I want to encrypt and decrypt some string in Php and in Javascript and looking on the web, the best and safest way seems to be CryptoJs.
This post is not a duplicate of Encrypt with PHP, Decrypt with Javascript (cryptojs) because the output string it's not simple.
This is my code but the Js decrypting code doesn't work. What is it wrong?
...ANSWER
Answered 2020-Sep-22 at 21:12In the PHP code the following should be considered:
$passphrase
does not denote a passphrase, but the key. This key must be 32 bytes in size for the choiceaes-256-cbc
. If it is too short, it is filled with 0 values, if it is too long, it is truncated. This is a common source of error, so a key of exactly 32 bytes should be used. If you want to work with a passphrase, you have to use a KDF (like PBKDF2).- In the fourth parameter flags are set, and no boolean expression (like
true
). If the data should be returned in binary form, theOPENSSL_RAW_DATA
flag must be set. - Static IVs are insecure, usually a new IV is generated for each encryption, which is sent to the recipient together with the ciphertext. Since the IV is not secret, it is usually placed in front of the ciphertext on byte level without encryption.
The following sample PHP code (based on the posted code):
QUESTION
I need to Encrypt
some data in angularjs
and Decrypt
in nodejs
. I've seen this stackoverflow
answer:
Angular CryptoJs Encryption Not Decryption in Node JS CryptoJS
and tried to use CryptoJS
in my angularjs
app this way:
HTML
...ANSWER
Answered 2020-Aug-18 at 11:14You could try to remove the two scripts associated with crypto-js that you already have in the HTML and replace them with:
I hope this works.
QUESTION
I have to decrypt laravel 6
encrypted string with javascript.
Key in laravel .env
file
ANSWER
Answered 2020-Jul-24 at 12:25Like @Dusan Malusev already mentioned:
You should not use Laravel APP_KEY in frontend code. NEVER, Laravel uses APP_KEY to encrypt everything including cookies (Session cookie and csrf cookie).
Your application could be hacked if it's in your html code! To answer your question a bit: use Crypt::decrypt($encrypted)
on the server side of your application (within Laravel).
QUESTION
I have (succesfully) done an
...ANSWER
Answered 2020-Jul-15 at 01:19Works for me. Maybe your package inclusion isn't correct:
QUESTION
I got the answer here how to encrypt post data in javascript and same decrypt it on server side. I am facing an issue while implementing the javascriot with my ajax form submission. I try to implement it with my ajax as below in my code snippet bit it not works as expected.
I don't have advance use of jQuery with this function but I can learn with someone provide the correct solution of this thread. I show multiple threads on this same platform stackoverflow but the question bit similar but my answer is totally end-to-end diffrent. Please don't mark it as spam/duplicate/pending. Thank you stackover devs,
...ANSWER
Answered 2020-Jul-15 at 03:29$("#form").unbind("submit").bind("submit", function(e) {
e.preventDefault();
encrypt();//call the function you declared
function encrypt() {
var key = CryptoJS.enc.Hex.parse("0123456789abcdef0123456789abcdef");
var iv = CryptoJS.enc.Hex.parse("abcdef9876543210abcdef9876543210");
var newpassword = $('input[name="newpassword"]').val();//get the value
var hash = CryptoJS.AES.encrypt(newpassword, key, {
iv: iv
});
$('input[name="newpassword"]').val(hash);//insert the hashed value
//alert(hash);
return false;
}
$('#form').submit();//submit the form manually if you use e.preventDefault()
});
QUESTION
I am trying to encrypt the username & password in javascript with AES Algorithm,but getting error "Uncaught ReferenceError: CryptoJS is not defined at SubmitsEncryp ((index):221) at HTMLInputElement.onclick ((index):119). i have use both Cdn downloaded file and use Cdn link but getting this error any idea how to remove this error: Login .cshtml:
...ANSWER
Answered 2020-Mar-16 at 11:24As far as I can see, you've only included the aes.js library. Try using this CryptoJS library:
QUESTION
I Need to download some files from Server I use Retrofit ,Voelly and DownLoadManager which are some of ways to download files from server in android , but my response is not the things that I want .
I test my app with other URLs from other servers and it works perfectly.
When I test my app with my Host I get below Response From Server as HTML File.
This site requires Javascript to work, please enable Javascript in your browser or use a browser with Javascript support
I also test my download URl from My server in browsers and it returns the true file .
What is the problem with my server ???
...My complete response
ANSWER
Answered 2020-Jan-20 at 11:46Better Answers will Be accepted and appreciated :)
After getting response from My Host support team, I found that the problem is from Server Side.
I have used the free hosting.
Support Team sayed to me that their free hosts are only for Creating Web Sites and not downloading file from them.
I think this is for be Scraping disabled or maybe not having SSL .
But if any one have better ideas about that explains to me as comment or answer
I finally use better free host provider which allows me to download files from server and send request from android client.
My new Host Provider : www.000webhost.com
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