相容PHP和Java的des加密解密代碼分享_PHP教程

php代碼:

<?phpclass DES{var $key;var $iv; //位移量 function DES($key, $iv=0){$this->key = $key;if($iv == 0){$this->iv = $key;}else {$this->iv = $iv;}} //加密function encrypt($str){$size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC );$str = $this->pkcs5Pad ( $str, $size ); $data=mcrypt_cbc(MCRYPT_DES, $this->key, $str, MCRYPT_ENCRYPT, $this->iv);//$data=strtoupper(bin2hex($data)); //返回大寫十六進位字串return base64_encode($data);} //解密function decrypt($str){$str = base64_decode ($str);//$strBin = $this->hex2bin( strtolower($str));$str = mcrypt_cbc(MCRYPT_DES, $this->key, $str, MCRYPT_DECRYPT, $this->iv );$str = $this->pkcs5Unpad( $str );return $str;} function hex2bin($hexData){$binData = "";for($i = 0; $i < strlen ( $hexData ); $i += 2){$binData .= chr(hexdec(substr($hexData, $i, 2)));}return $binData;} function pkcs5Pad($text, $blocksize){$pad = $blocksize - (strlen ( $text ) % $blocksize);return $text . str_repeat ( chr ( $pad ), $pad );} function pkcs5Unpad($text){$pad = ord ( $text {strlen ( $text ) - 1} );if ($pad > strlen ( $text ))return false;if (strspn ( $text, chr ( $pad ), strlen ( $text ) - $pad ) != $pad)return false;return substr ( $text, 0, - 1 * $pad );}}$str = 'abcd';$key= 'asdfwef5';$crypt = new DES($key);$mstr = $crypt->encrypt($str);$str = $crypt->decrypt($mstr); echo $str.' <=> '.$mstr; ?>

java代碼:

package com.test; import it.sauronsoftware.base64.Base64; import java.security.Key;import java.security.SecureRandom;import java.security.spec.AlgorithmParameterSpec; import javax.crypto.Cipher;import javax.crypto.SecretKeyFactory;import javax.crypto.spec.DESKeySpec;import javax.crypto.spec.IvParameterSpec; public class Main{  public static final String ALGORITHM_DES = "DES/CBC/PKCS5Padding";  /**   * DES演算法，加密   *   * @param data 待加密字串   * @param key 加密私密金鑰，長度不能夠小於8位   * @return 加密後的位元組數組，一般結合Base64編碼使用   * @throws CryptException 異常   */  public static String encode(String key,String data) throws Exception  {    return encode(key, data.getBytes());  }  /**   * DES演算法，加密   *   * @param data 待加密字串   * @param key 加密私密金鑰，長度不能夠小於8位   * @return 加密後的位元組數組，一般結合Base64編碼使用   * @throws CryptException 異常   */  public static String encode(String key,byte[] data) throws Exception  {    try    {  DESKeySpec dks = new DESKeySpec(key.getBytes());   SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");      //key的長度不能夠小於8位位元組      Key secretKey = keyFactory.generateSecret(dks);      Cipher cipher = Cipher.getInstance(ALGORITHM_DES);      IvParameterSpec iv = new IvParameterSpec(key.getBytes());      AlgorithmParameterSpec paramSpec = iv;      cipher.init(Cipher.ENCRYPT_MODE, secretKey,paramSpec);       byte[] bytes = cipher.doFinal(data);  //      return byte2hex(bytes);      return new String(Base64.encode(bytes));    } catch (Exception e)    {      throw new Exception(e);    }  }   /**   * DES演算法，解密   *   * @param data 待解密字串   * @param key 解密私密金鑰，長度不能夠小於8位   * @return 解密後的位元組數組   * @throws Exception 異常   */  public static byte[] decode(String key,byte[] data) throws Exception  {    try    {    SecureRandom sr = new SecureRandom();  DESKeySpec dks = new DESKeySpec(key.getBytes());  SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");      //key的長度不能夠小於8位位元組      Key secretKey = keyFactory.generateSecret(dks);      Cipher cipher = Cipher.getInstance(ALGORITHM_DES);      IvParameterSpec iv = new IvParameterSpec(key.getBytes());      AlgorithmParameterSpec paramSpec = iv;      cipher.init(Cipher.DECRYPT_MODE, secretKey,paramSpec);      return cipher.doFinal(data);    } catch (Exception e)    {      throw new Exception(e);    }  }   /**   * 擷取編碼後的值   * @param key   * @param data   * @return   * @throws Exception   */  public static String decodeValue(String key,String data)   {  byte[] datas;  String value = null;try {   datas = decode(key, Base64.decode(data.getBytes())); value = new String(datas);} catch (Exception e) {value = "";}  return value;  }   public static void main(String[] args) throws Exception  {  System.out.println("明：abcd ；密：" + Main.encode("asdfwef5","abcd"));  }}

http://www.bkjia.com/PHPjc/824790.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/824790.htmlTechArticlephp代碼: phpclass DES{var $key;var $iv; //位移量 function DES($key, $iv=0){$this-key = $key;if($iv == 0){$this-iv = $key;}else {$this-iv = $iv;}} //加密function encrypt($str...

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