aes

I've been writing a little system to dynamically load AES encrypted jar files. My code: public static void main(String args[]) throws Exception { String jar = "http://site.com/api/rsc/test.jar"; List<URL> urls = new ArrayList<URL>(); urls.add(getURL(jar)); URL jarurl = urls.get(0); ObjectInputStream ois = new ObjectInputStream((new URL("http://site.com/api/rsc/key_1.txt").openStream())); Object o = ois.readObject(); DESKeySpec ks = new DESKeySpec((byte[])o); SecretKeyFactory skf = SecretKeyFactory.getInstance("DES"); SecretKey key = skf.generateSecret(ks); Cipher c = Cipher.getInstance("DES

I'm trying to encrypt a message in javascript (using crypto-js library) and to decrypt it in java. This is the javascript code: var key = CryptoJS.enc.Utf8.parse(aesPassword); var ive = CryptoJS.enc.Utf8.parse(aesIv); var encryptedData = CryptoJS.AES.encrypt(dataToEncrypt, key, {mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7, iv: ive}); And this is the java code: final Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); final SecretKeySpec key = new SecretKeySpec(aesPassword().getBytes("UTF-8"), "AES"); cipher.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(aesIv().getBytes(

I wrote a little test in Kotlin to encrypt some text "Hello" using a Cipher instance with the algorithm "AES/CFB8/NoPadding". (minecraft stuff) And I am now attempting to do the same in Go, however I am unable to produce the same result. All the different methods I have tried always produce something different. These are the following threads/examples I've already looked through in order to get to this point. How to use rsa key pair for AES encryption and decryprion in golang https://play.golang.org/p/77fRvrDa4A Decrypt in Golang what was encrypted in Python AES CFB https://gist.github.com

I have following code written in java. I need C# equivalent for this. Key key = new SecretKeySpec(keyValue, "AES"); Cipher c = Cipher.getInstance("AES"); c.init(1, key); byte[] encVal = c.doFinal(Data.getBytes()); encryptedValue = new BASE64Encoder().encode(encVal); Here C# code equivalent in java. System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding(); AesManaged tdes = new AesManaged(); tdes.Key = UTF8.GetBytes(keyValue); tdes.Mode = CipherMode.ECB; tdes.Padding = PaddingMode.PKCS7; ICryptoTransform crypt = tdes.CreateEncryptor(); byte[] plain = Encoding.UTF8.GetBytes(text); byte[]

I'm having problems encrypting and decrypting my streams between two sockets. ObjectInputStream oIn = new ObjectInputStream(new FileInputStream(new File("key"))); SecretKeySpec spec = (SecretKeySpec) oIn.readObject(); //'key' file was saved previously Cipher cEncrypt = Cipher.getInstance("AES"); cEncrypt.init(Cipher.ENCRYPT_MODE, spec); Cipher cDecrypt = Cipher.getInstance("AES"); cDecrypt.init(Cipher.DECRYPT_MODE, spec); //should have no problems here, I tried the ciphers out by encoding and decoding a String, works fine ObjectOutputStream objectOutputStream= new ObjectOutputStream(new

Check update#1 This logic is a candidate for a authentication procedure, done by simple HTTP requests: I'm sending: userName + encrypted_userName (encrypted_userName is actually the encrypted result of userName, done using AES & as key i use the md5 hash of the password). NOTE: I'm not sending the md5 hashed Password. on the server I'm comparing: encrypted_userName with own_encrypted_userName (since on server i have access to full info on user, i calculate own encrypted_userName). Question : is this a security flaw? Say bad guy captures full HTTP request, can he extract password from this 2

I have to implement encryption in android app. The web developer is using CryptoJs library. means Encryption alog is AES256 encryption. Both iOS and android platforms give different strings and iOS one is accepted at web.It should be same for sample strings. I am using below code snippets (there are 2 different diffrent functions): private void newEnc() { String secret = "LSC@SD2017@ps"; String cipherText = "{\"device_type\":\"iOS\",\"email\" : \"jhon@gmail.com\",\"device_id\" : \"14105DA4-CEE5-431E-96A2-2331CDA7F062\",\"password\" : \"123456\",\"device_token\" : \

I am using AES and I want to settle for a key which I can use on the Java side to encrypt a string, I hardcode the same key on php side and decrypt the string if the strings match I am authenticated to step inside. Following is my code in Java: public class AESencrp { private static final String ALGO = "AES"; private static final byte[] keyValue = new byte[] { 'T', 'h', 'e', 'B', 'e', 's', 't', 'S', 'e', 'c', 'r','e', 't', 'K', 'e', 'y' }; public static String encrypt(String Data) throws Exception { Key key = generateKey(); Cipher c = Cipher.getInstance(ALGO); c.init(Cipher.ENCRYPT_MODE, key);

I have encrypted JPG file in Java with AES256, but have no idea to decrypt the JPG file in javascript. Anyone has better idea? I'm struggling with it for 4days. byte[] ivBytes = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; String key = "1234567890123456789012345678901d"; AlgorithmParameterSpec ivSpec = new IvParameterSpec(ivBytes); SecretKeySpec newKey = new SecretKeySpec(key.getBytes("UTF-8"), "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(mode, newKey, ivSpec); InputStream input = null; OutputStream

When I run Crypto-JS's encrypt function, I am given the base64-encoded following: var crypted = CryptoJS.AES.encrypt("Message", "Secret Passphrase", {mode: CryptoJS.mode.CBC}).toString(); ==> "U2FsdGVkX19HKyOimD43Bl4ww/I40M+NQrscjti3ZnA=" How do I unencrypt this in PHP in the future? I have attempted using openSSL, mcrypt, etc, and nothin seems to work -- I guess I don't know how to deal with base64 encoding, salting, VI, and everything... Something goes wrong somewhere. JS // encrypt data with CryptoJS var crypted = CryptoJS.AES.encrypt("Message", "Secret Passphrase"); // get additional info