Linux采用加密的数据传输,linux平台下数据加密装置接口的驱动分析与实现-driver analysis and implementation of data encryption device...-优快云博客

本文探讨了Linux平台上数据加密设备驱动的设计与实现，着重于硬件加密的优势及其对系统性能的影响。针对PCI和USB两种主要总线标准，详细分析了其驱动开发流程，并考虑了ARM架构下的USB主机控制器驱动的特定需求。

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linux平台下数据加密装置接口的驱动分析与实现-driver analysis and implementation of data encryption device interface on linux platform

AbstractInrecently,informationsecuritybecomesmoreandmoreimportant,so,therearemanytechnologieswhatfocusoninformationsecurity.Encryptionisoneofthemosteffectivetechnologies.Therearetwokindsofmannersforinformationencryption:hardwareencryptionandsoftwareencryption.Hardwareencryptionhasgreatadvantagestosoftwareencryption,itwillfreecomputerCPUandimprovesystemoverallperformation.Consequently,itisnecessarythatuniversalencryptiondeviceshavebeenresearched.Atthesametime,itismoreandmoreimportantthattheinterfaceofencryptiondeviceshasbeenresearched.Inthemanybusstandards,PCIinterfacewithahighertransferrateandUSBinterfacewithitsflexibilityandportabilityhavebeenthemostextensiveandthemostuniversalbusstandardincomputersystem.Therefore,theworkisvaluableondevelopingPCIdevicedriverandUSBdevicedriver.Linuxispopularlyappliedforit?sspecialityoffreeandopencodes.TheapplicationbasedonLinuxkernelinEmbeddedoperationsystemisimperativeforlowcost.So,it?sappliedanduniversaltodevelopthedevicedriversforLinux.LinuxdevicedriverforPCIinterfaceofthedatabaseencryptcardisthebackgroundofthethesis.AfterthePCIbusfeatures,controlmechanism,interfacespecificationandinterfacedesignpatternisstudied,weexpatiatethedriverspecialtyinLinux.Then,thePCIdevicedriversaredeveloppedrespectiveforLinux.Meanwhile,papersimplyintroducesthecharacteristicsofUSB,theUSBstructureofsoftwareandhardwareandthetranslationtechnique.ThenitalsoanalyzesUSBsubsystemunderLinux,especiallythehostcontroldriver(HCD).Underthisanalysis,therequiredmdificationsfortheUSBhostcontroldrivertotheARMarchitecturehasbeenanalyzsed.Therelevanceofthehardwareandoperationofsynchronizationandmutexareconsideredfullytosettlethedriversdevelopment.Intheend,thispaperconcludestheshortageinourresearchworktodevelopPCIandUSBinterface.Apartfromthis,thepaperalsobringsforwardsomeaspectsthatneedimproveinfuturework.Simultantly,itsupposesthefineprospectaboutPCIandUSBdevelopment.Keywords:InformationSecurity,DeviceDrivers,CrossCompiler,PeripheralEquipmentsBusInterface目录摘要IAbstractII1绪论