DINGYI：

　　YIZHONGUSBJIEKOUDEYINGJIANSHEBEI，NEIZHIZHINENGKAXINPIAN，YOUYIDINGDECUNCHUKONGJIAN，ZHUYAOSHIYONGZUOJIYUGONGYAOTIXI（PKI）DESHUZIZHENGSHUHESIYAODEANQUANZAITI，SHIWANGSHANGYINXINGDESHENFENRENZHENGANQUANBAOHUDUNPAI。

　　ANQUANXING：

　　CAIYONGPKIGONGYAOTIXI，RSA MIYAODUISHIZAIUSB KeyNEISHENGCHENGDE，SIYAOYONGYUANBUNENGDAOCHU，QUEBAOZHENGSHUCHIYOURENDEXINXIANQUAN。TONGSHICAIYONG“Key+PINMA”DESHUANGYINZIRENZHENG，BAOZHENGSHUZIZHENGSHUHESIYAODEHEFASHIYONG。