oracle中的encrypt_des加密对应Java的加密方式

代码语言：javascript复制

一、oracle中的加密函数encrypt_des

create or replace function encrypt_des(vi_data varchar2) return varchar2 is
  --加密
  vr_data       varchar2(4000);
  vr_enc        varchar2(4000);
  raw_input     RAW(128);
  key_input     RAW(128);
  decrypted_raw RAW(2048);
  vr_key        varchar2(64);
begin
  if vi_data is null then
    return null;
  end if;
  select MOBILEKEY
    into vr_key
    from CENKEY;
  vr_data   := rpad(vi_data, (trunc(length(vi_data) / 8)   1) * 8, chr(0));
  raw_input := UTL_RAW.CAST_TO_RAW(vr_data);
  key_input := UTL_RAW.CAST_TO_RAW(vr_key);
  dbms_obfuscation_toolkit.DESEncrypt(input => raw_input, key => key_input,
                                      encrypted_data => decrypted_raw);
  vr_enc := rawtohex(decrypted_raw);
  dbms_output.put_line(vr_enc);

  return vr_enc;
end;

下图是加密后的结果

将18693157906加密后的密文是 FAD42A3BB2A4B9A5B36847714A56FE65

代码语言：javascript复制

二、java中对应的加密、解密方法

代码语言：javascript复制

public class Utils {

#密钥	
private static String key = "test#5&124*!de";
	
 /**
  *      加密
  * @param inStr
  * @return
  */
   public static String ENCRYPT_DES(String inStr)  { 
	   DESKeySpec desKey;
	   SecretKey securekey;
	   Cipher cipher; 
	  try {
		
		desKey = new DESKeySpec(key.getBytes());
		securekey = SecretKeyFactory.getInstance("DES").generateSecret(desKey);
	    cipher = Cipher.getInstance("DES/CBC/NoPadding");
	    cipher.init(Cipher.ENCRYPT_MODE, securekey, new IvParameterSpec(new byte[8]));
        byte[] inBytes = new byte[((int) (inStr.length() / 8)   1) * 8];
        for (int i = 0; i < inStr.length(); i  ) {
        inBytes[i] = inStr.getBytes()[i];
        }
       byte[] enBytes = cipher.doFinal(inBytes);
       String hexStr = DatatypeConverter.printHexBinary(enBytes);
       return hexStr;
        
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

	return null;
	   
   }
	
   /**
    *    解密
    * @param encryptStr
    * @return
    */
   public static  String DECRYPT_DES(String encryptStr)  { 
	   DESKeySpec desKey;
	   SecretKey securekey;
	   Cipher cipher; 
	 try {
		 desKey = new DESKeySpec(key.getBytes());
         securekey = SecretKeyFactory.getInstance("DES").generateSecret(desKey);
	     cipher = Cipher.getInstance("DES/CBC/NoPadding");
	     cipher.init(Cipher.DECRYPT_MODE, securekey, new IvParameterSpec(new byte[8]));
		 byte[] decryptBytes = cipher.doFinal(Hex.decodeHex(encryptStr.toCharArray()));
		 return new String(decryptBytes).trim();
		
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

	return null;
	   
   }
   
   public static void main(String[] args) {
	   System.out.println("加密：" ENCRYPT_DES("18693157906"));
	   System.out.println("解密：" DECRYPT_DES("FAD42A3BB2A4B9A5B36847714A56FE65"));
}
	
 
}

代码语言：javascript复制

三、运行代码得到结果

可以看到加密后的密文是FAD42A3BB2A4B9A5B36847714A56FE65

解密后的明文是18693157906

跟数据库加密一致

数据库 加密

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