© Ramon Martí, DMAG, Universitat Pompeu Fabra 1 MobiHealth Security Requirements and Proposal MobiHealth Security Requirements and Proposal Madrid 2002/11/12-13.

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© Ramon Martí, DMAG, Universitat Pompeu Fabra 1 MobiHealth Security Requirements and Proposal MobiHealth Security Requirements and Proposal Madrid 2002/11/12-13

© Ramon Martí, DMAG, Universitat Pompeu Fabra Page 2 Security Issues GPRS/UMTS and Bluetooth [Zigbee]  Data Link Layer Hop-to-hop security  Data encryption and terminal authentication, with no user or application authentication  Link layer security independent from the node address  Security suitable for MobiHealth communications

© Ramon Martí, DMAG, Universitat Pompeu Fabra Page 3 Security Issues IPsec  Network Layer node-to-node security  node-to-node data encryption and node authentication, with no user or application authentication  The node-to-node protection can be host-to-host, end-to-end or end-to-host protection  Comm. security based on client and server node addresses  Not suitable for comm. security from MBU with dynamic IP  MBU WSB, MBU SH, etc  Suitable for comm. security between hosts with static IP  GPRS/UMTS Op. WSB, WSB SH and GPRS/UMTS Op SH, SH WS, etc.

© Ramon Martí, DMAG, Universitat Pompeu Fabra Page 4 Security Issues SSL and HTTPS  Transport Layer end-to-end application-to-application security  End-to-end data encryption and user authentication  Suitable for transport-level security from the MBU  Suitable for transport-level security between hosts with static IP S-HTTP  Extension to HTTP: HTTP superset  Application Layer application-to-application and application_user-to-application_user security  Cryptography to Application layer messages  Allows various messages encapsulation ways  Not particular key certification scheme. Support for RSA

© Ramon Martí, DMAG, Universitat Pompeu Fabra Page 5 Security Issues OpenSSL  Application Layer application-to-application and application_user-to-application_user security  Application data encryption or/and user authentication

© Ramon Martí, DMAG, Universitat Pompeu Fabra Page 6 Functionality of the WSB Central Authentication and Authorization Broker Management facilities:  Statistics  Services  Billing Data compression Proxy functionality WAP 2.0 Standard End to End security (HTTPS) Wireless TCP Push functionality

© Ramon Martí, DMAG, Universitat Pompeu Fabra Page 7 Security Proposal