LiCha a secure and decentralized approach for privacy aware 里岔全与隐私意识的分散方法

1、luca maria aiello. universit degli studi di torino dipartimento di informatica secnet group1secure distributed applications:a case studyluca maria aiello, federica cesano, marco milanesio, giancarlo ruffo, rossano schifanellaspeaker:luca maria aiellosecnet groupdipartimento di informatica, universit

2、 degli studi di torinocorso svizzera, 185 10149, torino, italyaiellodi.unito.ititalian networking workshopluca maria aiello. universit degli studi di torino dipartimento di informatica secnet group2motivationsin distributed identity-based commercial applications, user data are retained by central se

3、rvers. secure infrastructure loss of user privacyexploiting dht systems for data storage could preserve privacy respect of user data secrecy infrastructure prone to common attacksour contribution: likir: a secure p2p middleware licha: the first likir application, is a demonstrative likir serviceluca

4、 maria aiello. universit degli studi di torino dipartimento di informatica secnet group3likirlayered identity-based kademlia-like infrastructurea novel dht layer identity: user identity management at middleware level security:oprotection against known overlay attacks (routing poisoning, sybil attack

5、, mitm, pollution)luca maria aiello. universit degli studi di torino dipartimento di informatica secnet group4likir architecturemany other attempts to secure overlay networks:myrmickadsecmaelstromby introducing a strong binding between user id and node id, likir solves (or effectively mitigates) dht

6、 security problemsluca maria aiello. universit degli studi di torino dipartimento di informatica secnet group5likir protocolluca maria aiello. universit degli studi di torino dipartimento di informatica secnet group6likirother good featuresno single point of failureno additional system constraints (

7、e.g. clock synchronization)likir middleware is transparent to application developersease of developement and integration of id-based applicationslimited computational overhead respect to kademliasimple apipossible enhancementsreplace rsa with ibsluca maria aiello. universit degli studi di torino dip

8、artimento di informatica secnet group7lichathe likir chatfully distributed im applicationuser data stored in the dhtpersonal data are encrypted before being storedevery content is signed by likir layerluca maria aiello. universit degli studi di torino dipartimento di informatica secnet group8how lic

9、ha workslichalikirhi!cedricpasswordtcpapplicationoverlay netdht storageidcontact personalinfodynaerlookup(udp)storeidfind(“”)get(“”)luca maria aiello. universit degli studi di torino dipartimento di informatica secnet group9a possible future?likir becomes an ideal framework for privacy aware social

10、networkssecurityidentityprivacyscalabilityluca maria aiello. universit degli studi di torino dipartimento di informatica secnet group10contacts and creditshttp:/likir.di.unito.itlikirdi.unito.itaiellodi.unito.itwe would thankedoardo rossi, cooperated with us for licha developementelton kola, built likir registration portal with openi