什么是信息安全? 工TU-X.800给出的相关属性的定义: (2)完整性 (Integrity):Assurance that data received are exactly as sent by an authorized sender. 通过访问控制阻止篡改行为,通过消息摘要 算法检验信息是否被篡改
什么是信息安全? ITU-X.800给出的相关属性的定义: (2)完整性(Integrity):Assurance that data received are exactly as sent by an authorized sender. 通过访问控制阻止篡改行为,通过消息摘要 算法检验信息是否被篡改
什么是信息安全? 工TU-X.800给出的相关属性的定义: (3)可用性(Availability):services should be accessible when needed and without delay. 涉及物理、网络、系统、 数据、应用和用户 等多方面因素
什么是信息安全? ITU-X.800给出的相关属性的定义: (3)可用性(Availability):services should be accessible when needed and without delay. 涉及物理、网络、系统、数据、应用和用户 等多方面因素
什么是信息安全? 工TU-X.800给出的相关属性的定义: (4)真实性(Authentication): assurance that the communicating entity is the one it claims to be. peer entity authentication. Data-origin authentication
什么是信息安全? ITU-X.800给出的相关属性的定义: (4)真实性(Authentication): assurance that the communicating entity is the one it claims to be. peer entity authentication. Data-origin authentication
什么是信息安全? 工TU-X.800给出的相关属性的定义: (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. 通过数字签名(digital signature)来提供不 抵赖性服务
什么是信息安全? ITU-X.800给出的相关属性的定义: (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