import java.security.NoSuchAlgorithmException
import java.security.SecureRandom
import javax.crypto.Cipher
import javax.crypto.KeyGenerator
import javax.crypto.SecretKey
import javax.crypto.spec.SecretKeySpec
public class AESSecurityUtil {
private static final String AES ="AES"
private static final String CHARSET_NAME ="utf-8"
private static SecretKeySpec getKey(String password) throws NoSuchAlgorithmException{
KeyGenerator kgen = KeyGenerator.getInstance(AES)
SecureRandom random=SecureRandom.getInstance("SHA1PRNG")
random.setSeed(password.getBytes())
kgen.init(128, random)
SecretKey secretKey = kgen.generateKey()
byte[] enCodeFormat = secretKey.getEncoded()
SecretKeySpec key = new SecretKeySpec(enCodeFormat, AES)
return key
}
public static String encode(String str, String password)
{
byte[] arr = encodeToArr(str, password)
return byteArrToString(arr)
}
private static byte[] encodeToArr(String str, String password)
{
try
{
Cipher cipher = Cipher.getInstance(AES)
byte[] byteContent = str.getBytes(CHARSET_NAME)
cipher.init(Cipher.ENCRYPT_MODE, getKey(password))
byte[] result = cipher.doFinal(byteContent)
return result
}
catch (Exception e)
{
e.printStackTrace()
}
return null
}
public static String decode(String hexStr, String password){
byte[] arr = string2ByteArr(hexStr)
return decode(arr, password)
}
private static String decode(byte[] arr, String password) {
try{
Cipher cipher = Cipher.getInstance(AES)
cipher.init(Cipher.DECRYPT_MODE, getKey(password))
byte[] result = cipher.doFinal(arr)
return new String(result, CHARSET_NAME)
}catch (Exception e){
e.printStackTrace()
}
return null
}
private static String byteArrToString(byte[] arr) {
StringBuffer sb = new StringBuffer()
for (int i = 0i <arr.lengthi++) {
String s = Integer.toString(arr[i] + 128, 16)
if (s.length() == 1){
s ="0"+ s
}
sb.append(s)
}
return sb.toString().toUpperCase()
}
PHP代码:
<?php
class Security {
public static function encrypt($input, $key) {
$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB)
$input = Security::pkcs5_pad($input, $size)
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '')
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND)
mcrypt_generic_init($td, $key, $iv)
$data = mcrypt_generic($td, $input)
mcrypt_generic_deinit($td)
mcrypt_module_close($td)
$data = base64_encode($data)
return $data
}
private static function pkcs5_pad ($text, $blocksize) {
$pad = $blocksize - (strlen($text) % $blocksize)
return $text . str_repeat(chr($pad), $pad)
}
public static function decrypt($sStr, $sKey) {
$decrypted= mcrypt_decrypt(
MCRYPT_RIJNDAEL_128,
$sKey,
base64_decode($sStr),
MCRYPT_MODE_ECB
)
$dec_s = strlen($decrypted)
$padding = ord($decrypted[$dec_s-1])
$decrypted = substr($decrypted, 0, -$padding)
return $decrypted
}
}
$key = "1234567891234567"
$data = "example"
$value = Security::encrypt($data , $key )
echo $value.'<br/>'
echo Security::decrypt($value, $key )
---------------
java 代码
import javax.crypto.Cipher
import javax.crypto.spec.SecretKeySpec
import org.apache.commons.codec.binary.Base64
public class Security {
public static String encrypt(String input, String key){
byte[] crypted = null
try{
SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES")
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding")
cipher.init(Cipher.ENCRYPT_MODE, skey)
crypted = cipher.doFinal(input.getBytes())
}catch(Exception e){
System.out.println(e.toString())
}
return new String(Base64.encodeBase64(crypted))
}
public static String decrypt(String input, String key){
byte[] output = null
try{
SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES")
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding")
cipher.init(Cipher.DECRYPT_MODE, skey)
output = cipher.doFinal(Base64.decodeBase64(input))
}catch(Exception e){
System.out.println(e.toString())
}
return new String(output)
}
public static void main(String[] args) {
String key = "1234567891234567"
String data = "example"
System.out.println(Security.encrypt(data, key))
System.out.println(Security.decrypt(Security.encrypt(data, key), key))
}
}
先看用什么方式的加密,拿AES来说,你需要问java要到混淆值、初始化向量与AES加密的方式如AES-192-CFB.然后直接调用openssl_decrypt方法进行解密.openssl_decrypt('需要解密的字符串','AES-192-CFB','混淆值',0,'初始化向量'),true)