兼容PHP和Java的des加密解密代码分享

 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($data)); //返回大写十六进制字符串 return base64_encode($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 ( $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; ?>

 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算法，加密 * * @param data 待加密字符串 * @param key 加密私钥，长度不能够小于8位 * @return 加密后的字节数组，一般结合Base64编码使用 * @throws CryptException 异常 */ public static String encode(String key,String data) throws Exception { return encode(key, data.getBytes()); } /** * DES算法，加密 * * @param data 待加密字符串 * @param key 加密私钥，长度不能够小于8位 * @return 加密后的字节数组，一般结合Base64编码使用 * @throws CryptException 异常 */ public static String encode(String key,byte[] data) throws Exception { try { DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); //key的长度不能够小于8位字节 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) <strong style="color:transparent">来源gao@daima#com搞(%代@#码网</strong>{ throw new Exception(e); } } /** * DES算法，解密 * * @param data 待解密字符串 * @param key 解密私钥，长度不能够小于8位 * @return 解密后的字节数组 * @throws Exception 异常 */ 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的长度不能够小于8位字节 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); } } /** * 获取编码后的值 * @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")); } }