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AES encryption using Java and decryption using Javascript

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I am making an application which needs Java based AES Encryption and JavaScript based decryption. I am using the following code for encryption as a basic form. public class AESencrp { private static final String ALGO = "AES"; private static final byte[] keyValue = new byte[] { 'A', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k','l', 'm', 'n', 'o', 'p'}; public static String encrypt(String Data) throws Exception { Key key = generateKey(); Cipher c = Cipher.getInstance(ALGO); c.init(Cipher.ENCRYPT_MODE, key); byte[] encVal = c.doFinal(Data.getBytes()); String encryptedValue = new BASE64Encoder

Ciphertext is not converting to plain text and is not being alerted

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问题 I am not able to decrypt a ciphertext. I have to test that my decryption is working properly or not. So, I created a simple html file which take cipher text and than convert it into plain text. I just here hardcoding the value and than converting ciphertext into plain text. When I tried it it was not working at all. I don't understand what is the issue. This is my code <!DOCTYPE html> <html> <head> <script src="tripledes.js"></script> <script src="mode-ecb.js"></script> <style type="text/css"

Java's RSA/ECB/OAEPWithSHA-256AndMGF1Padding equivalent in Node.js

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The data decryption will run in JAVA using RSA/ECB/OAEPWithSHA-256AndMGF1Padding algorithm. So I have to encrypt the data with public key using the algorithm equivalent to RSA/ECB/OAEPWithSHA-256AndMGF1Padding in node.js . I tried with crypto.publicEncrypt(key, buffer) which uses crypto.constants.RSA_PKCS1_OAEP_PADDING which is not similar to the above algorithm. So I need algorithm equivalent to "RSA/ECB/OAEPWithSHA-256AndMGF1Padding" or how to achieve the same in node.js I finally found the answer. Equivalent to "RSA/ECB/OAEPWithSHA-256AndMGF1Padding" can be achieved via node-forge npm

Ciphertext is not converting to plain text and is not being alerted

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I am not able to decrypt a ciphertext. I have to test that my decryption is working properly or not. So, I created a simple html file which take cipher text and than convert it into plain text. I just here hardcoding the value and than converting ciphertext into plain text. When I tried it it was not working at all. I don't understand what is the issue. This is my code <!DOCTYPE html> <html> <head> <script src="tripledes.js"></script> <script src="mode-ecb.js"></script> <style type="text/css"> <script type="text/javascript"> function decryptByDES(aHJHDJSHJhjsak=, highishjdhsjhjs) { var keyHex

Various HMAC_SHA256 functions in classic ASP gives different results

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Somehow I need to generate a hash in Classic ASP which is equivalent to PHP's following function's output: $hash = hash_hmac('SHA256', $message, pack('H*', $secret)); where $message = 'stackoverflow'; $secret = '1234567890ABCDEF'; . I tried quite a lot approaches online, but none matches the PHP result: bcb3452cd48c0f9048e64258ca24d0f3399563971d4a5dcdc531a7806b059e36 Method 1: Using dvim_brix_crypto-js-master_VB.asp online (using CrytoJS) Function mac256(ent, key) Dim encWA Set encWA = ConvertUtf8StrToWordArray(ent) Dim keyWA Set keyWA = ConvertUtf8StrToWordArray(key) Dim resWA Set resWA =

How to check if the decryption is correct?

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I'm working on chat room that encrypt messages for more than one users and each user might have different encryption and key/password. The user's key won't work with all the message, therefore; return errors. var message ="secret message"; var encrypted = CryptoJS.AES.encrypt(message, "Secret Passphrase"); try { var decrypted = CryptoJS.AES.decrypt(encrypted, "Secret Passphrase123").toString(CryptoJS.enc.Utf8); if (decrypted.length > 0) { alert(decrypted); } else { alert("false"); } } catch(e) { alert("false"); } I'm currently catching the error, but sometimes the decryption returns with

Jquery error : too much recursion

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I'm trying to create a file upload system implementing client side encryption using CryptoJS. The problem I'm having is that execution of the script is stopped by the following error in Firebug's console : too much recursion I have spent half of the day trying to resolve the problem, removing the var jqxhr = $.ajax part removes the error but removes posting functionality from my script. I have tried removing all the encryption lines, separating into different functions, but nothing seems to do it. Any jQuery pros know what's going wrong ? Here's the code : $("#successmsg").hide(); $("#errormsg

Encrypt in python - decrypt in Javascript

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I have need to simply encrypt some text in python and being able to decrypt in JavaScrypt. So far I have in python: from Crypto import Random from Crypto.Cipher import AES import base64 BLOCK_SIZE = 16 key = "1234567890123456" # want to be 16 chars textToEncrypt = "This is text to encrypt" def encrypt(message, passphrase): # passphrase MUST be 16, 24 or 32 bytes long, how can I do that ? IV = Random.new().read(BLOCK_SIZE) aes = AES.new(passphrase, AES.MODE_CFB, IV) return base64.b64encode(aes.encrypt(message)) def decrypt(encrypted, passphrase): IV = Random.new().read(BLOCK_SIZE) aes = AES.new

AES 256 on the client side (JS) and in the server (PHP)

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I'm trying to encrypt and decrypt data on the server side and the client using the same type of operation, which is AES-256. On the server I use PHP and client I use CryptoJS so far I could only encrypt and decrypt the client on the server, see the code: JS <script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/aes.js"></script> <script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/pbkdf2.js"></script> <script> var salt = CryptoJS.lib.WordArray.random(128/8); var key256Bits500Iterations = CryptoJS.PBKDF2("Secret Passphrase", salt, { keySize: 256/32,

What is a WordArray?

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问题 I've been looking at crypto-js and its encoder converts to and from a WordArray . I looked up the documentation and couldn't find any explanation of what a WordArray might be. To the best of my knowledge, there isn't even a typed array in JavaScript named WordArray , and neither is there a DataView on any of the typed arrays by that name. I know what a WORD is in the Visual C++ parlance, but I am not sure what it means here. Strange, all the threads (here, here and here) I found on crypto-js