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Sarvajanik Collage of Engineering & Technology

Sarvajanik Collage of Engineering & Technology. BE Project Branch-CO(M) Prepared by: Prachi Gandhi.(21) Mital Bambharoliya(6). USB Flash Drives: Protecting Data And Enhancing Storage. History Of Lexar’s UFD Standardization Efforts.

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Sarvajanik Collage of Engineering & Technology

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  1. Sarvajanik Collage of Engineering & Technology BE Project Branch-CO(M) Prepared by: Prachi Gandhi.(21) Mital Bambharoliya(6)

  2. USB Flash Drives: Protecting Data And Enhancing Storage

  3. History Of Lexar’s UFD Standardization Efforts • At WinHEC 2003 four aspects of USB flash drives requiring additional standardizationwere identified • New category name for USB Flash Drive (UFD) • UFDA founded end of 2003, initially focused on establishing category name and educate consumers about UFDs • Physical Form Factor for USB Flash Drive • USB-IF approved the Series ‘A’ Plugform factor Guideline 1.0 – 2005 • Bootability support for USB Flash Drives • Windows Vista “Core System” logo certificationrequirement (Consumer and Business SKUs) • Security for USB Flash Drives

  4. User’s Security Value Metrics Easy to Use Low Cost Highly Secure Solution

  5. Advantages Of Standard Security Solutions • No need to exploit“Windows XP backdoors”and use spoofing to launchpassword systems software • Seamless integrationinto Windows • Avoiding legacy issues • Don’t need to use Vendorunique commands limitingthe solutions to specific hardware One UFD

  6. Evolution Of The UFD – A Vision • Past • In the beginning, USB Flash Drives (UFDs) enabledtheir users to take their data with them everywhere • Present • Then, USB Flash Drive manufactures created small, stand-alone, proprietary applicationswhich could be run from the UFDs • Today, Portable Working Environments enable us to installand run a wide variety of programs from our UFDs • Future • My data → my data and apps → my data and apps and OS

  7. USB Lockable Storage • Purpose • USB-IF Implementers Forum international standard-royalty free • Extend USB Mass Storage Classto allow hosts and devices to lockand unlock storage, without breakinglegacy behaviors that exists today • Key Scenarios • Protect for loss/theft • Ensure privacy of data

  8. What Is USB Lockable Storage? Legacy / Impersonal Mode

  9. USB Locking User Experience Plug-in Successful Passphrase

  10. USB Lockable Storage Feature Negotiation • Feature negotiation • No impact on legacy systems • Lockable Storage InterfaceExtension Descriptor (LSIED) • USB parser already knows how to handle Extension Descriptors from HID devices • Allows future features to be added

  11. USB Lockable Storage Command Set • Nine new USB commands specified • Store, match, and change Passphrase • Erase Passphrase (return to Impersonal) • Electronic unplug • Originally used to update firmware • Now we change PIDs to unlock

  12. Compelling Technology Design Considerations • Personal storage device environment • Integrating support intothe Windows Storage Stack • PC OEM and Enterprise concerns • Value add opportunities • Reusable architecture

  13. The Personal Storage Device Environment Legacy OS 1 2 1998 – 2005 Legacy“MSC Device” 2006 – 20xx New“Personal Storage Device” 4 3 New OS

  14. Window’s USB Stack Changes • A new Device Class • Requires additional driverfor locked devices • Launches Windows “Found New Hardware” experience if locked and no driver • When device is unlocked we switchback to USBSTOR.SYS • USBSTOR.SYS • Standard Windows driverfor USB mass storage

  15. Technology Benefits • Open architecture • High percentage of end-userlost/theft scenarios addressed • No additional system/device overhead • Enables features for all markets • Consumer level locking withoutadditional cost • Extensible architecture for morecomplex locking policies • No licensing fees

  16. Added Value Opportunities Built-in Windows Shell support Continued standards activity Easy to Use USBLockableStorage Highly Secure Low Cost PC Industry adoption Continued standards activity Built-in Windows driver support Password strength protectionmechanisms Biometrics Add HW Encryption Integrate into CentrallyManaged software Harden saved passwords in Windows Continued standards activity

  17. Thank you

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