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    • 4. 发明授权
    • Personal computer ROM scan startup protection
    • 个人电脑ROM扫描启动保护
    • US6098171A
    • 2000-08-01
    • US52733
    • 1998-03-31
    • Robert Duane JohnsonRandall Scott SpringfieldJoseph Wayne FreemanRalph Bonomo
    • Robert Duane JohnsonRandall Scott SpringfieldJoseph Wayne FreemanRalph Bonomo
    • G06F1/00G06F21/57G06F21/83G06F11/00
    • G06F21/575G06F21/83G06F2211/1097
    • Provides management tools for a System Owner to assure that a personal computer system is secured against access by an unauthorized user by foreclosing the possibility of circumventing a system's security protection during an adapter ROM scan. If security function, such as that for C2 functionality, is enabled, prior to the adapter ROM Scan for the system, the POST code detects whether or not disabling of the keyboard during adapter ROM Scan is enabled. If enabled, the keyboard is disabled or locked prior to adapter ROM Scan. On some systems, the security function may not be used and, the system does not consider password protection for the adapter utilities. If however, the security functionality of the system is enabled, the POST code will continue to enable the password protection for the adapter ROM Scan. Once the input device, e.g., keyboard, is disabled the adapter ROM scan will begin. Upon completion of the adapter ROM scan, the input device will be enabled and progress will continue through POST.
    • 为系统所有者提供管理工具,以确保个人计算机系统受到未经授权的用户的访问,以防止在适配器ROM扫描过程中避免系统的安全保护。 如果启用安全功能(例如C2功能),则在系统的适配器ROM扫描之前,POST代码将检测是否启用了适配器ROM扫描期间禁用键盘。 如果启用,键盘在适配器ROM扫描之前被禁用或锁定。 在某些系统上,可能不使用安全功能,并且系统不会考虑为适配器实用程序提供密码保护。 然而,如果启用了系统的安全功能,POST代码将继续为适配器ROM扫描启用密码保护。 一旦输入设备(例如键盘)被禁用,则适配器ROM扫描将开始。 完成适配器ROM扫描后,将启用输入设备,并通过POST继续进行。