SlideShare una empresa de Scribd logo
1 de 19
Anonymous identity on the blockchain
Dr. Pavel Kravchenko
Tembusu Systems
About me
PhD in information
security
Chief cryptographer at
Tembusu Systems
Created an open-source
academic course about
cryptocurrencies
Electronic money = no privacy
REGULATION
Does identification mean traceability?
Can user anonymously store identity in the
blockchain?
Where KYC info should be stored?
Can we keep regulators accountable?
A crypto-currency protocol
1. That enforces that all participants passed KYC
2. While transaction are still anonymous
3. It is decentralized – no central authority
4. Impossible to link transactions of the same user
5. Audit might be possible in case of the
suspicious transaction
Is it for Bitcoin?
Solution overview
1. Unlinkable proof of identity is attached to
each transaction
2. Stealth and one-time addresses are used
3. Decentralized identity verification
4. Revocation is possible
5. User controls private keys and identity
Many KYC environments (groups)
Germany
China USA
Switzerland
UK
Processing nodes add transactions that
contain POI to the ledger
Features
1. Registration process in independent from the
payment network
2. As many groups as you need
3. Group manager selects own KYC policies
4. Possible to build groups where privacy is
absolute
5. Actions of group manager are auditable
Can it work with Bitcoin/Ethereum?
Group signature
A Group signature scheme is a method for allowing
a member of a group to anonymously sign a
message on behalf of the group
Conclusion
We are building a protocol/platform
That allows to create a global crypto-money
network
Where users are subject to KYC
But are able to transact anonymously
Questions?
pavel@tembusu.sg
ideateam_macuser
ua.linkedin.com/in/pkravchenko/

Más contenido relacionado

La actualidad más candente

Payment Protocols - Block Chain & Beyond
Payment Protocols - Block Chain & BeyondPayment Protocols - Block Chain & Beyond
Payment Protocols - Block Chain & Beyond
Alexander Kiriakou
 

La actualidad más candente (20)

Session for InfoSecGirls - Block chain for information security
Session for InfoSecGirls - Block chain for information securitySession for InfoSecGirls - Block chain for information security
Session for InfoSecGirls - Block chain for information security
 
Blockchain Technology
Blockchain TechnologyBlockchain Technology
Blockchain Technology
 
What is Block chain
What is Block chain What is Block chain
What is Block chain
 
Hands on with multichain
Hands on with multichainHands on with multichain
Hands on with multichain
 
Payment Protocols - Block Chain & Beyond
Payment Protocols - Block Chain & BeyondPayment Protocols - Block Chain & Beyond
Payment Protocols - Block Chain & Beyond
 
Block chain technology
Block chain technologyBlock chain technology
Block chain technology
 
Blockchain Technology
Blockchain TechnologyBlockchain Technology
Blockchain Technology
 
Cryptocurrencies
CryptocurrenciesCryptocurrencies
Cryptocurrencies
 
An introduction to block chain technology
An introduction to block chain technologyAn introduction to block chain technology
An introduction to block chain technology
 
An Introduction to Blockchain Technology
An Introduction to Blockchain Technology An Introduction to Blockchain Technology
An Introduction to Blockchain Technology
 
MultiChain – Private multicurrency blockchain platform
MultiChain – Private multicurrency blockchain platformMultiChain – Private multicurrency blockchain platform
MultiChain – Private multicurrency blockchain platform
 
Implementing the business logic as a decentralized Smart Contracts
Implementing the business logic as a decentralized Smart ContractsImplementing the business logic as a decentralized Smart Contracts
Implementing the business logic as a decentralized Smart Contracts
 
BLOCKCHAIN TECHNOLOGY
BLOCKCHAIN TECHNOLOGYBLOCKCHAIN TECHNOLOGY
BLOCKCHAIN TECHNOLOGY
 
Blockchain: Fundamentals & Opportunities​
Blockchain: Fundamentals & Opportunities​Blockchain: Fundamentals & Opportunities​
Blockchain: Fundamentals & Opportunities​
 
Practical Working Use Cases Of The Blockchain
Practical Working Use Cases Of The BlockchainPractical Working Use Cases Of The Blockchain
Practical Working Use Cases Of The Blockchain
 
Understanding private blockchains
Understanding private blockchainsUnderstanding private blockchains
Understanding private blockchains
 
Block chain technology
Block chain technologyBlock chain technology
Block chain technology
 
Distributed, immutable, secure...
Distributed, immutable, secure...Distributed, immutable, secure...
Distributed, immutable, secure...
 
Blockchain
BlockchainBlockchain
Blockchain
 
Bitcoin
BitcoinBitcoin
Bitcoin
 

Destacado

Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...
Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...
Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...
Positive Hack Days
 
An Underground education
An Underground educationAn Underground education
An Underground education
grugq
 
Solving Real Business Problems with the Blockchain
Solving Real Business Problems with the Blockchain Solving Real Business Problems with the Blockchain
Solving Real Business Problems with the Blockchain
MecklerMedia
 
OPSEC for hackers (bahasa indonesia)
OPSEC for hackers (bahasa indonesia)OPSEC for hackers (bahasa indonesia)
OPSEC for hackers (bahasa indonesia)
grugq
 

Destacado (20)

How do bitcoin transactions work?
How do bitcoin transactions work?How do bitcoin transactions work?
How do bitcoin transactions work?
 
What is Bitcoin?
What is Bitcoin?What is Bitcoin?
What is Bitcoin?
 
Анонимность в Биткоин. Часть 1. Лекция 9
Анонимность в Биткоин. Часть 1. Лекция 9Анонимность в Биткоин. Часть 1. Лекция 9
Анонимность в Биткоин. Часть 1. Лекция 9
 
Вступление в Биткоин. Лекция 1.
Вступление в Биткоин. Лекция 1.Вступление в Биткоин. Лекция 1.
Вступление в Биткоин. Лекция 1.
 
Factom Presentation by Founder Peter Kirby
Factom Presentation by Founder Peter KirbyFactom Presentation by Founder Peter Kirby
Factom Presentation by Founder Peter Kirby
 
律師司法官心智圖關鍵解題
律師司法官心智圖關鍵解題律師司法官心智圖關鍵解題
律師司法官心智圖關鍵解題
 
Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...
Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...
Дмитрий Угрюмов. Анонимность в Интернете: средства, методы, уязвимости и все-...
 
Что нужно знать специалисту по ИБ
Что нужно знать специалисту по ИБЧто нужно знать специалисту по ИБ
Что нужно знать специалисту по ИБ
 
An Underground education
An Underground educationAn Underground education
An Underground education
 
The Glass House: Anonymity Vs. Transparency on the Internet
The Glass House: Anonymity Vs. Transparency on the InternetThe Glass House: Anonymity Vs. Transparency on the Internet
The Glass House: Anonymity Vs. Transparency on the Internet
 
Введение в смарт контракты. Лекция 8
Введение в смарт контракты. Лекция 8Введение в смарт контракты. Лекция 8
Введение в смарт контракты. Лекция 8
 
Solving Real Business Problems with the Blockchain
Solving Real Business Problems with the Blockchain Solving Real Business Problems with the Blockchain
Solving Real Business Problems with the Blockchain
 
Как работает майнинг. Лекция 5
Как работает майнинг. Лекция 5Как работает майнинг. Лекция 5
Как работает майнинг. Лекция 5
 
OPSEC for hackers (bahasa indonesia)
OPSEC for hackers (bahasa indonesia)OPSEC for hackers (bahasa indonesia)
OPSEC for hackers (bahasa indonesia)
 
Click and Dragger: Denial and Deception on Android mobile
Click and Dragger: Denial and Deception on Android mobileClick and Dragger: Denial and Deception on Android mobile
Click and Dragger: Denial and Deception on Android mobile
 
Online Security
Online SecurityOnline Security
Online Security
 
Как работают транзакции. Лекция 3
Как работают транзакции. Лекция 3Как работают транзакции. Лекция 3
Как работают транзакции. Лекция 3
 
Blockchain y Contratos Inteligentes
Blockchain y Contratos InteligentesBlockchain y Contratos Inteligentes
Blockchain y Contratos Inteligentes
 
Как работает Multisignature. Лекция 7
Как работает Multisignature. Лекция 7Как работает Multisignature. Лекция 7
Как работает Multisignature. Лекция 7
 
Cloud adoption in utility industry 2016
Cloud adoption in utility industry 2016Cloud adoption in utility industry 2016
Cloud adoption in utility industry 2016
 

Similar a anonymity_KYC_short

What Is Blockchain_.pdf
What Is Blockchain_.pdfWhat Is Blockchain_.pdf
What Is Blockchain_.pdf
BeuranHendricks
 

Similar a anonymity_KYC_short (20)

Value Of Blockchain.pptx
Value Of Blockchain.pptxValue Of Blockchain.pptx
Value Of Blockchain.pptx
 
Are Cryptocurrency Transactions Anonymous.pdf
Are Cryptocurrency Transactions Anonymous.pdfAre Cryptocurrency Transactions Anonymous.pdf
Are Cryptocurrency Transactions Anonymous.pdf
 
technology
technologytechnology
technology
 
Blockchain in Identity Management - An Overview.pdf
Blockchain in Identity Management - An Overview.pdfBlockchain in Identity Management - An Overview.pdf
Blockchain in Identity Management - An Overview.pdf
 
Blockchain Assignment
Blockchain AssignmentBlockchain Assignment
Blockchain Assignment
 
Blockchain Technology.pdf
Blockchain Technology.pdfBlockchain Technology.pdf
Blockchain Technology.pdf
 
Blockchains Impact on Identity Management.pdf
Blockchains Impact on Identity Management.pdfBlockchains Impact on Identity Management.pdf
Blockchains Impact on Identity Management.pdf
 
Block chains and crypto currencies - introduction
Block chains and crypto currencies - introductionBlock chains and crypto currencies - introduction
Block chains and crypto currencies - introduction
 
Blockchains Impact on Identity Management.pdf
Blockchains Impact on Identity Management.pdfBlockchains Impact on Identity Management.pdf
Blockchains Impact on Identity Management.pdf
 
Cryptocurrency development-company
Cryptocurrency development-companyCryptocurrency development-company
Cryptocurrency development-company
 
Lapine blockchain introduction 10/04/2018
Lapine blockchain introduction 10/04/2018Lapine blockchain introduction 10/04/2018
Lapine blockchain introduction 10/04/2018
 
Kebocoran Data_ Tindakan Hacker atau Kriminal_ Bagaimana kita mengantisipasi...
Kebocoran Data_  Tindakan Hacker atau Kriminal_ Bagaimana kita mengantisipasi...Kebocoran Data_  Tindakan Hacker atau Kriminal_ Bagaimana kita mengantisipasi...
Kebocoran Data_ Tindakan Hacker atau Kriminal_ Bagaimana kita mengantisipasi...
 
What Is Blockchain_.pdf
What Is Blockchain_.pdfWhat Is Blockchain_.pdf
What Is Blockchain_.pdf
 
Cryptocurrency: Some Basic Things You Should Know
Cryptocurrency: Some Basic Things You Should KnowCryptocurrency: Some Basic Things You Should Know
Cryptocurrency: Some Basic Things You Should Know
 
blockchain technology -unit-3-notes.pdf for engineering students
blockchain technology -unit-3-notes.pdf for engineering studentsblockchain technology -unit-3-notes.pdf for engineering students
blockchain technology -unit-3-notes.pdf for engineering students
 
Blockchain Presentations done by Michel
Blockchain Presentations done by Michel Blockchain Presentations done by Michel
Blockchain Presentations done by Michel
 
A Comprehensive Guide To Cryptocurrency.pdf
A Comprehensive Guide To Cryptocurrency.pdfA Comprehensive Guide To Cryptocurrency.pdf
A Comprehensive Guide To Cryptocurrency.pdf
 
Cryptocurrencies - a guide to getting started
Cryptocurrencies - a guide to getting startedCryptocurrencies - a guide to getting started
Cryptocurrencies - a guide to getting started
 
Wef getting started_cryptocurrency_2021
Wef getting started_cryptocurrency_2021Wef getting started_cryptocurrency_2021
Wef getting started_cryptocurrency_2021
 
Wef getting started_cryptocurrency_2021
Wef getting started_cryptocurrency_2021Wef getting started_cryptocurrency_2021
Wef getting started_cryptocurrency_2021
 

anonymity_KYC_short