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    • 1. 发明授权
    • Security policy for protection of files on a storage device
    • 用于保护存储设备上的文件的安全策略
    • US06430561B1
    • 2002-08-06
    • US09429963
    • 1999-10-29
    • Vernon Ralph AustelPaul Ashley KargerDavid Claude Toll
    • Vernon Ralph AustelPaul Ashley KargerDavid Claude Toll
    • G06F1730
    • G07F7/1008G06F21/6218G06F21/6245G06F21/64G06Q20/341G06Q20/35765Y10S707/99939
    • Access to files by accessing programs, where files comprise other files, programs and data is controlled. An initial access class is assigned to each file and to each accessing program. An access class comprises an integrity access class and a secrecy access class. An integrity access class comprises rules governing modification of data contained in files and a security access class comprises rules governing disclosure of data contained in files. An integrity access class comprises a set of rules for allowing the performance of a read function, and another set of rules for allowing the performance of write/execute function. An execute function comprises transferring and chaining, where chaining comprises starting another process running at potentially different secrecy and integrity access classes. A secrecy access class comprises a set of rules for allowing the performance of a write function, and another set of rules for allowing the performance of read/execute function. The respective access classes of the target file, target program, and accessing program are compared. If the comparison results meet the security requirements, the function is performed.
    • 通过访问程序访问文件,其中文件包含其他文件,程序和数据。 初始访问类被分配给每个文件和每个访问程序。 访问类包括完整性访问类和保密访问类。 完整性访问类包括管理文件中包含的数据的修改的规则,并且安全访问类包括管理文件中包含的数据的公开的规则。 完整性访问类包括用于允许执行读取功能的一组规则,以及用于允许执行写/执行功能的另一组规则。 执行功能包括传送和链接,其中链接包括以潜在的不同的秘密和完整性访问类别启动另一个进程。 保密访问类包括用于允许执行写入功能的一组规则,以及用于允许执行读取/执行功能的另一组规则。 比较目标文件,目标程序和访问程序的各个访问类别。 如果比较结果符合安全要求,则执行该功能。