信息安全的目标 (S)不可抵赖性(Non-Repudiation) protection against denial by one of the parties in a communication. Origin non-repudiation:proof that the message was sent by the specified party Destination non-repudiation:proof that the message was received by the specified party. 一般通过数字签名(digital signature)来 提供不可抵赖性服务。信息安全的目标  （5）不可抵赖性（Non-Repudiation）： protection against denial by one of the parties in a communication. Origin non-repudiation：proof that the message was sent by the specified party. Destination non-repudiation：proof that the message was received by the specified party. 一般通过数字签名（digital signature）来 提供不可抵赖性服务