Key2 share moosecon
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Key2Share is a system that allows smartphones to be used for access control via Near Field Communication (NFC). It issues digital keys that are represented as QR codes and can be shared remotely. This provides flexible access control with options for easy key delegation, remote revocation of access, and management of access rights. A proof of concept has been developed with Bosch Security Systems to integrate Key2Share into their existing access control infrastructure. The system aims to provide secure access control via smartphones while balancing security and compatibility with mobile devices.
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Key2 share moosecon
- 1. Key2Share: NFC-enabled Smartphone-based Access Control Alexandra Dmitrienko Cyberphysical Mobile Systems Security Group Fraunhofer SIT, Darmstadt In collaboration with TU Darmstadt, Center for Advanced Security Research in Darmstadt (CASED), Intel Collaborative Research Institute for Secure Computing (ICRI-SC) at TU-Darmstadt, Bosch Security Systems
- 2. Near Field Communication (NFC) Applications + NFC = services in one touch mPayments mTicketing
- 3. Why not Using a Smartphone as a Key? + NFC =
- 4. Smartphone as a Door Key Access control by enterprises to their facilities Access control in private sector (houses, garages) 4
- 5. Smartphone as a Door Key Access to hotel rooms 5
- 6. Smartphone as a Car Key/Immobilizer Fleet management by enterprises Car sharing with family members or friends 6
- 7. Smartphone as a Car Key/Immobilizer Car sharing by rental/car sharing companies 7
- 8. Smartphone for Access to Storage Facilities Access to safes in hotel rooms Lockers in luggage storage at train stations/airports DHL packing stations 8
- 9. Smartphone for Access to Storage Facilities DHL packstations 9
- 10. Smartphone for Access to Facilities E.g., parking houses 10
- 11. Usual Keys vs. SmartCards vs. Key2Share Usual Keys SmartCards Key2Share Distribution Requires physical Requires physical Remote access access Revocation Requires physical Remote Remote access or replacement of the lock Delegation Not possible Not possible Possible Context-aware Not possible Possible Possible access (e.g., time frame) 11
- 12. Key2Share: System Architecture Issuer 1. Employ the employee/sell the car Users Key2Share 2. One-time registration web-service 3. Electronic key issued 5. Share key 4. User Authentication with the issued key 6. User Authentication with the shared key Resources Delegated users 12
- 13. Key Sharing The key to be shared is represented as a QR-code Can be sent to the recipient per e-mail, MMS or scanned by a camera of another device
- 14. QR Code: What’s Inside? Electronic keys of Key2Share are similar to passports Issued by a central authority Government Enterprise Issued for a particular entity Citizen Employee Public (not a secret) Yes Yes (encrypted) Has binding to an identity of Cryptographic key Photo an entity it is issued for bound to the platform 14
- 15. Key2Share Security Platform Security Secure communication protocols 15
- 16. Protocol Security Well-established cryptographic primitives (AES, SHA-1, RSA) Formal security proof of the protocols Formal tool-aided verification of protocols 16
- 17. Platform Security Different trade-offs between security and requirements to a mobile device Less secure More secure Built-in Security System level software-based Hardware-based Mechanisms of Mobile OS security extensions security extensions No extra requirements to Requires update of system Requires support in mobile hardware and software (e.g., OS) hardware. Available system software (e.g., only on some operating system) mobile platforms 17
- 18. Platform Security Software-based security Hardware-based security extensions extensions provided by BizzTrust Require support in hardware architecture e.g., Giesecke & Devrient Mobile Security Card http://www.gd- http://www.bizztrust.de/ sfs.com/the-mobile-security- card/ Can be attached to the device via microSD card slot 18
- 19. Supported Platforms Android NFC-enabled platforms (e.g., Samsung Nexus S, Galaxy S3) 19
- 20. Summary Flexible access rights: policy-based easy delegation remote revocation managable
- 21. Current Work Proof of Concept with Bosch Security Systems: Key2Share as Access Pass Key2Share as Building Block in Bosch‘s „Access-Control-as-a-Service“ Compatibility with already deployed infrastructure (wireless readers, management software)