초록 ▼

An invention is disclosed that provides a mechanism for exposing to user mode applications the features and information enabled by the Advanced Configuration and Power Interface ("ACPI") specification. The present invention provides a generic mapping driver that executes in kernel mode, and that mak

An invention is disclosed that provides a mechanism for exposing to user mode applications the features and information enabled by the Advanced Configuration and Power Interface ("ACPI") specification. The present invention provides a generic mapping driver that executes in kernel mode, and that makes calls to the ACPI driver accessible by user mode applications. The mapping driver may be a part of a management instrumentation system, such as the Windows Management Instrumentation ("WMI") system. The WMI system provides an interface through which instrumented components, such as hardware devices, can provide information and notification to management applications in user mode through a consistent management information store. The mapping driver provides access to the ACPI system from the WMI management system.

대표청구항 ▼

An invention is disclosed that provides a mechanism for exposing to user mode applications the features and information enabled by the Advanced Configuration and Power Interface ("ACPI") specification. The present invention provides a generic mapping driver that executes in kernel mode, and that mak

An invention is disclosed that provides a mechanism for exposing to user mode applications the features and information enabled by the Advanced Configuration and Power Interface ("ACPI") specification. The present invention provides a generic mapping driver that executes in kernel mode, and that makes calls to the ACPI driver accessible by user mode applications. The mapping driver may be a part of a management instrumentation system, such as the Windows Management Instrumentation ("WMI") system. The WMI system provides an interface through which instrumented components, such as hardware devices, can provide information and notification to management applications in user mode through a consistent management information store. The mapping driver provides access to the ACPI system from the WMI management system. keys. 3. A method according to claim 1, further comprising the step of incorporating in the document at least one of the at least two encryption keys as a set of encryption keys corresponding to the portions of the document to be decrypted by an intended recipient of the document. 4. A method according to claim 3, further comprising the step of encrypting the incorporated set of encryption keys utilizing an encryption key associated with the intended recipient. 5. A method according to claim 4, wherein the document further comprises a plurality of key sets with each set corresponding to an intended recipient and wherein the step of encrypting the incorporated set of encryption keys comprises the step of encrypting each of the plurality of key sets with a key associated with the intended recipient corresponding to each set of encryption keys. 6. A method according to claim 1, further comprising the steps of: decrypting the first portion of the document utilizing the first of the at least two encryption keys; and decrypting the second portion of the document utilizing the second of the at least two encryption keys. 7. A method according to claim 2, further comprising the steps of: decrypting the first and the second portions of the document utilizing the second of the at least two encryption keys; and then decrypting the first portion of the document utilizing the first of the at least two encryption keys. 8. A method according to claim 3, further comprising the step of decrypting the document utilizing the set of encryption keys incorporated into the document. 9. A method according to claim 4, further comprising the steps of: decrypting the set of encryption keys utilizing the encryption key associated with the intended recipient; and decrypting the document utilizing encryption keys in the decrypted set of encryption keys. 10. A method according to claim 9, wherein the document further comprises a plurality of encrypted key sets with each set corresponding to an intended recipient and wherein the step of decrypting is preceded by the step of locating within the document the encrypted key set corresponding to the intended recipient. 11. A method according to claim 9, wherein the document is sequentially encrypted utilizing encryption keys in the set of encryption keys and wherein the step of decrypting the document comprises the step of sequentially decrypting the document utilizing the encryption keys in the decrypted set of encryption keys in a sequential order in reverse to the sequential order in which the document was encrypted. 12. An encrypted document comprising: a first portion of the document encrypted with a first encryption key; and a second portion of the document, different from the first portion, encrypted with both the first encryption key and a second encryption key. 13. An encrypted document according to claim 12, further comprising a third portion of the document which is unencrypted. 14. An encrypted document according to claim 12, further comprising a key area containing at least one of the first encryption key and the second encryption key. 15. An encrypted document according to claim 14, wherein the key area is encrypted with a third encryption key. 16. An encrypted document according to claim 12, further comprising a plurality of key areas, each key area corresponding to an intended recipient. 17. An encrypted document according to claim 16, wherein each of the plurality of key areas is encrypted with an encrypted key associated with the intended recipient corresponding to the key area. 18. An encrypted document according to claim 12, wherein the document comprises at least one of a video clip, a word processing document, an audio clip, a spreadsheet, a database and a multimedia presentation. 19. A system for encrypting a document, comprising: means for dividing the document into at least a first portion having a first security level and a second portion having a second securit