anonymous p2p communications platform for secure mining of personal data with minimum risks on...
Post on 18-Dec-2015
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anonymous P2P communications
platform
for secure mining of personal data with minimum risks on privacy
Mnemonic Security, Inc.Fujitsu Prime Software Technologies
LimitedImai Lab, IIS, University of Tokyo
leakage of privacy information
• restoration is just impossible• descendants could be influenced• punishment makes no solution• some corporate data are as critical
risk management
There could be no unbreakable data center,
since men of flesh and blood are in charge.
The key is minimizing the damage to the smallest unit – one individual.
Depend less on centralized managementDevelop distributed management
mining of personal data
mining of piecemeal personal data↓
out-of-mark propositions or spam mails received
pertinent propositions received↓
How much of my privacy is known to them?When/how they gathered it without me
knowing?
nightmare of leaking privacy for data centersnightmare of having privacy leaked for individuals
striking a balance
maximum security
distributed data base
secured anonymity
assurance & usability
Secure user verification
by easy and stress-free
Mnemonic Guard
effects
mining of anonymous personal data
self-responsibility
person-
identification data to be managed by
individuals
健康データ
固定データ・名前・住所・年齢・電話番号
・計測データ(血圧、体重等)・年代・性別
encryption
anonymous health data
user id data
Contained in user’s device
Online user verification
by Mnemonic Guard
user
firewall within personal data
service suppliers
公開サービス
非公開情報
intermediary supplier
disclosed for service
non-disclosure data
health data management center
公開サービス
bulletin board (DB)
anonymous P2P network
by onion routing with backtrack
disclosed for service
anonymous communication
health/medicine/food/sports
Issuance of certificate by
Mnemonic Guard
scheme
onion routed P2P network
Unicast communication by onion routing + multicast communication by P2P protocol
Return routes retained in the packets
Effects
・ Anonymity secured by onion routing and multicasting
・ Robustness of and reduced burden on the network
application
Peer
Onion Proxy
Peer
Onion Proxy
P2P Onion node
application
Peer
Onion Proxy
P2P Onion node
application
P2P Onion node
Peer Peer
dynamic dynamic route management• Peer Router retains public key on routing table
• Route discovery protocol is onion-encrypted for anonymity
• Onion Proxy generates Route Onion dynamically
Dual RoutingDual Routing
• Backtracking enabled by multiple onion routes retained in tree structure
• Failure by onion routing → Retrial by P2Pmulticast
failureonion routing
P2Pmulticast
P2P Onion node
PeerS
Onion Proxy
Peer
P2P Onion node
Routing
table, public
key
PeerR
P2P Onion node
Routing protocol Routing protocol
Return route to PeeS held in Route Onion
Route to R encrypted by onetime public key of S
Routing
table, public
key
applications
privacy-protected data-mining
Government to PeopleBusiness to People
Models in progressHealth Care
Nagoya Int’l Exposition
secrecy-protecteddata mining
GovernmentBusiness
Government to BusinessBusiness to Business
a billboard a local Japanese
A traffic lights
another foreigner
a shop
a foreign visitor
May I help you ?
Watch! Do not walk!
Where are you from?
We have good Ukiyoe to offer!
There is an authentic Japanese restaurant 100m ahead.
While roving around the venue, visitors keep receiving propositions and suggestions when their terminals are located by nearby radio transmitters. Privacy-conscious visitors can opt to be anonymous.
Nagoya International Exposition
Barrier-free Model
Hearing-impaired
Sight-impaired
To character
To voice
Mono Rail
TimetableGuidanceVoice
Character
Get timetablein voice
Programmed forcloth ears
Communication with anybody
Guidance everywhere
Entrance Gate
Support anytime
From the RF tag of entrance ticket, the best program for the impaired person is selected and set up.
ハンディキャップの情報もチケットに組み込まれてる
から説明しなくても安心
TicketRecognition
Reception
This allows quick lending of information terminal. No advance setting is required. Management becomes easy.
Conversation is automatically transformed to the other party's understandable form. Lively conversation can be enjoyed irrespective of one's impairment.
ハンディキャップをいちいち説明しなくても誰とでも友達になれる
Even if an attendant is not there in times of need, the nearest attendant is
searched and asked for help.
トイレまで案内してもらえませんか?
これなら会場のどこへでも
行ける!
From the different forms of transmitted information, the best one is automatically selected. Moderating the amount of information relieves the burden of information selection.
Exit Gate
ITで友達が出来た!嬉しいな♪
受付がとてもスムース
端末を返却OK気をつけて!
出合ったお友達と一緒に帰ろう。