计算机安全 Computer security
计算机安全
计算机安全是一门被称为信息安全的技术,适用于计算机。计算机安全的目的不同,可以包括为了保护信息不被盗窃或修改,或保全其可用性,所界定的安全政策。
计算机安全提供了战略技术,以转换消极要求积极可执行的规则。为此,计算机安全相比较一些计算机科学领域而言更多的是技术和数学。
增进计算机安全的一些典型方法可以包括以下内容:
物理限制那些只有不会造成安全威胁的程序才能进入电脑;硬件机制,只运行那些规则的计算机程序,从而避免依赖计算机安全的计算机程序;操作系统的机制,规则的实施方案,以避免信任的计算机程序;规划战略,使计算机程序的可靠和抵制颠覆。
1.硬件机制,保护计算机和数据 (毕业设计)
基于硬件或促进电脑安全提供了一种替代,即纯软件的计算机安全。虽然许多软件可以对一些解决安全方案的数据进行加密,防止数据被窃取,恶意程序可能会损坏数据,以使其无法恢复或无法使用。基于硬件的安全解决方案可以防止读写存取数据,因此具有非常强大的防范措施,防止篡改功能。 [来源:http://www.doc163.com]
Computer security
Computer security is a branch of technology known as information security as applied to computers. The objective of computer security varies and can include protection of information from theft or corruption, or the preservation of availability, as defined in the security policy.
Computer security provides a technical strategy to convert negative requirements to positive enforceable rules. For this reason, computer security is often more technical and mathematical than some computer science fields.
Typical approaches to improving computer security can include the following:
Physically limit access to computers to only those who will not compromise security;Hardware mechanisms that impose rules on computer programs, thus avoiding depending on computer programs for computer security;Operating system mechanisms that impose rules on programs to avoid trusting computer programs;Programming strategies to make computer programs dependable and resist subversion.
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