發(fā)送方用密鑰加密數(shù)據(jù),接收方用同樣的密鑰解密數(shù)據(jù).The receiver decrypts the data using the same secret key.不可抵賴分為發(fā)送方的不可抵賴和接收方的不可抵賴.Non repudiation consists of the sender's non repudiation and receipt's non repudiation.現(xiàn)實(shí)細(xì)節(jié)清單并訪問(wèn)結(jié)算差異的接收方...