AES指高级加密标准(Advanced Encryption Standard),是当前最流行的一种密码算法,在web应用开发,特别是对外提供接口时经常会用到,下面是我整理的一套php与java通用的AES加密解密算法。
php版代码如下:
<?php /** * Class Security php java通用加密解密 */ class Security { private static function pkcs5_pad($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); return $text . str_repeat(chr($pad), $pad); } public static function encrypt($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 $data; } public static function decrypt($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版代码如下:
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)); } }