MEASURES TO PROTECT COMPUTER SECURITY 保護計算機安全的措施
Security is concerned with protecting information, hardware, and software. Security measures consist of encryption, restricting access,anticipating disasters, and making backup copies.
安全與信息、硬件和軟件的保護有關。安全措施包括加密、限制訪問、預防災難和制作備份。
Encrypting Messages 給信息加密
Whenever information is sent over a.network, the possibility of unauthorized access exists. The longer the distance the message has to travel, the higher the security risk is. For example, an e-mail message on a LAN meets a limited number of users operating in controlled environments such as offices. An e-mail message traveling across the country on the National Information Highway affords greater opportunities for the message to be intercepted.
每當信息通過網絡發送，總是存在越權訪問的可能性。信息傳輸的距離越遠，安全風險就越大。例如，局域網上的電子郵件只會遭遇在辦公室等受控環境中進行操作的有限數量的用戶。而在國家信息高速公路上橫穿國家的電子郵件，則提供了更多的被截取的機會。
Businesses have been encrypting, or coding, messages for years. They have become so good at it that some law enforcement agencies are unable to “wiretap” messages from suspected criminals. Some federal agencies have suggested that a standard encryption procedure be used so that law enforcement agencies can monitor suspected criminal communications. The government is encouraging businesses that use the National Information Highway to use a special encryption program. This program is available on a processor chip called the clipper chip and is also known as the key escrow chip.
工商企業給信息加密或譯碼已達多年。它們在這方面已十分擅長，致使有些執法機構難以“竊聽”疑犯發送的信息。一些聯邦機構建議采用標準的加密程序，以便執法機構能夠監控疑犯的通信。政府鼓勵使用國家信息高速公路的工商企業采用一種專門的加密程序。這種程序可在一種處理器芯片上得到，該芯片稱為加密芯片，通常也稱為密鑰托管芯片。
Individuals are also using encryption programs to safeguard their private communications. One of the most widely used personal encryption programs is Pretty Good Privacy.
個人也使用加密程序來保護其私人通信。使用最廣泛的加密程序之一是PGP加密軟件。
文章來源于領測軟件測試網 http://www.kjueaiud.com/
