aes

Actually, I searched lot from internet and in stackoverflow too for this, Initially I don't used padding in my encryption and decryption, But Finally I got solution from here https://stackoverflow.com/a/10775577/1115788 and I updated my code with padding as AES/CBC/PKCS5Padding and the same error is coming, and last block is not decrypted... I'm working on this for last two day, but no solution found my Crypter Code: package mani.droid.browsedropbox; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.math.BigInteger;

import org.springframework.util.Base64Utils; import java.security.NoSuchAlgorithmException; import java.security.SecureRandom; import java.util.logging.Level; import java.util.logging.Logger; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; /** * @version V1.0 * @desc AES 加密工具类 */ public class AESUtil { private static final String KEY_ALGORITHM = "AES"; private static final String DEFAULT_CIPHER_ALGORITHM = "AES/ECB/PKCS5Padding";//默认的加密算法 /** * AES 加密操作 * * @param content 待加密内容 * @param password 加密密码 * @return

I have a bash script that uses the openssl tool to encrypt. #!/bin/bash key128="1234567890123456" iv="1234567890123456" openssl enc -aes-128-cbc -in test -out test.enc -K $key128 -iv $iv And Java code that tries to decrypt the file produced by the script. public class crypto { public static void main( String[] args ) { try { File f = new File("test.enc"); Cipher c; Key k; String secretString = "01020304050607080900010203040506"; String ivString = "01020304050607080900010203040506"; byte[] secret = hexStringToByteArray(secretString); byte[] iv = hexStringToByteArray(ivString); c = Cipher

What are some of the simplest ways to AES encrypt and decrypt a 16 byte array without the automatic padding? I have found solutions that use external libraries, but I want to avoid that if possible. My current code is SecretKeySpec skeySpec = new SecretKeySpec(getCryptoKeyByteArray(length=16)); // 128 bits Cipher encryptor = Cipher.getInstance("AES"); encryptor.init(Cipher.ENCRYPT_MODE, skeySpec); byte[] encrypted = encryptor.doFinal(plain); How can I prevent the padding? The plain data is always fixed length and includes its own padding. How can I allow plain to be 16 bytes without causing

Does anyone have a clue how to decrypt the first message sent from the card? I mean after the authentication success and then you send a command (for example 0x51 (GetRealTagUID). It returns 00+random32bits (always different). I try to decrypt it with: private byte[] decrypt(byte[] raw, byte[] encrypted, byte[] iv) throws Exception { IvParameterSpec ivParameterSpec = new IvParameterSpec(iv); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding"); cipher.init(Cipher.DECRYPT_MODE, skeySpec, ivParameterSpec); byte[] decrypted = cipher

I am using the following LINK for encryption and tried it with Strings and it worked. However, since I am dealing with images, I needed the encryption/decryption process to happen with byte arrays. So I modified the code in that link to the following: 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 byte[] encrypt(byte[] Data) throws Exception { Key key = generateKey(); Cipher c = Cipher.getInstance(ALGO); c.init(Cipher.ENCRYPT_MODE

I am trying to create a simple webpage with the goal to send and encrypted message to the server (which will create a file with that content), then a link is created and the user who receive the link provided will be able to see the encrypted value (since it provides the name of the file and the key). The message is encrypted using CryptoJS AES, and the result is Base64 encoded to be decoded after that, only the Base64 of the encrypted message and the encrypted message is sent to the server nothing else, and this is done using Javascript. My question here is. I have a message, let say "Hello

I have been trying to decrypt a string using AES-128 CBC which was originally crypted using JAVA AES encryption. In java PKCS7 padding is used. And I have tried to encrypt and decrypt using similar PHP code. But I am getting different result. My Java code import java.security.MessageDigest; import java.security.spec.AlgorithmParameterSpec; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import android.util.Base64; /** * @author vipin.cb , vipin.cb@experionglobal.com <br> * Sep 27, 2013, 5:18:34 PM <br> * Package:- <b>com.veebow.util

this code give invalid AES key length error. how can i correct it ? ( i want 128 bit key AES encryption ) package org.temp2.cod1; import java.security.*; import javax.crypto.*; import javax.crypto.spec.*; import java.io.*; public class Code1 { public static void main(String[] args) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException { String s = "9882623867"; byte[] plaintext = s.getBytes("UTF-16"); String s2 = "supernova"; byte[] key = s2.getBytes("UTF-16"); Cipher c = Cipher.getInstance(