package?com.demo;

/?**??
*?@軟件著作權(quán)：
*?@項(xiàng)目名稱：
*?@作者：??
*?@復(fù)核人：
*?@時(shí)間???
*?/?



import?java.security.Key;?
import?java.security.SecureRandom;?
import?java.security.spec.AlgorithmParameterSpec;?
import?java.util.Locale;?


import?javax.crypto.Cipher;?
import?javax.crypto.SecretKeyFactory;?
import?javax.crypto.spec.DESKeySpec;?
import?javax.crypto.spec.IvParameterSpec;?




/?**?
?*?@Description：DES加解密
?*?/?
public?class?DesCryptTool?{?
public?static?void?main（String?args?[]）throws?Exception?{?
DesCryptTool?CryptTool?=?new?DesCryptTool（）;?
String?key?=?CryptTool.createkey（“ASDFGHJK”）;?
String?data?=“k56jklasdfsdf”;
//System.out.println（“源數(shù)據(jù)：”?+數(shù)據(jù)）;?
String?data1?=?CryptTool.desEncrypt（data，key）;?
System.out.println（“加密后：”+?data1）;?
String?data2?=?CryptTool.desDecrypt（data1，key）;?
System.out.println（“解密后：”+?data2）;?


}?
/?**?
*?
@throws?Exception?*?@Description：DES加密??
*?@param?datasource??
*?@param?srckey??
*?@return?String返回類型
*?/?
public?String?desEncrypt（String?datasource，Key?key）throws?Exception?{?
try?{?
//獲取隨機(jī)數(shù)據(jù)源
SecureRandom?secureRandom?=?new?SecureRandom（）;?
//?Cipher對(duì)象實(shí)際完成加密操作


Cipher?cipher?=?Cipher.getInstance（“DES?/?EBC?/?ZEROBYTEPADDING”）;?
IvParameterSpec?iv?=?new?IvParameterSpec（“12345678”.getBytes（））;
AlgorithmParameterSpec?paramSpec?=?iv;?
//秘密用
初始化密碼對(duì)象cipher.init（Cipher.ENCRYPT_MODE，鍵，paramSpec中）;?
//數(shù)據(jù)加密
byte?[]?bytes?=?cipher.doFinal（datasource.getBytes（））;?
return?byte2hex（bytes）;?
}?catch（Exception?e）{?
throw?new?Exception（‘錯(cuò)誤碼‘，“DES加密錯(cuò)誤”，e）;?
}?
}?


/?**?
*?@描述：DES解密??
*?@參數(shù)數(shù)據(jù)源
*?@參數(shù)srckey??
*?@throws異常??
*?@返回字節(jié)[]返回類型
*?/?
public?static?String?desDecrypt（String?datasource，Key?key）throw?Exception{?
byte[]?cipherByte?=?null;?
//獲取隨機(jī)數(shù)據(jù)源
//?SecureRandom?secureR