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0Copyrightⓒ 2018 by SK telecom All rights reserved.
Opportunities and Challenges of Blockchain Development
Software R&D CenterBlockchain Tech. Lab
Hyojin Jeong
1Copyrightⓒ 2018 by SK telecom All rights reserved.
How Blockchain Could Disrupt the Telecommunication Industry
Blockchain Networks is building on the Telecommunication Infrastructure
Challenges
Control the end-to-end value chain- Data Connectivity- Network Infrastructure- Related consumer services
BUT
Need to find additional sources of revenue and reduce cost
Opportunities
Blockchain can impact the core management
system of CSPs(Communication Service
Providers) by creating an environment where
cost can be reduced, and the revenue can be
increased with higher efficiency
2Copyrightⓒ 2018 by SK telecom All rights reserved.
Blockchain Network on the Telecommunication Infrastructure
Infrastructure Access Network Core Operation-BSS-OSS
ServiceVoice/Data/Cable-Value added Services-Managed Service-
Network Management
Enterprise Management
Partner Management
Customer Management
Reporting and Analytics
Potential area for Blockchain disruption
Blockchain will provide a opportunities in a fields of Fraud Management, Identity-as-a-Service, 5G Enablement and IoT connectivity biz area
3Copyrightⓒ 2018 by SK telecom All rights reserved.
Blockchain Opportunity for Telecommunication Industry
- Decentralized and distributed ledger
- Trustless operability
- Immutable, auditable and Irreversible
nature of records
- No or diminished role for third-party
intermediaries
- Cryptographically secure
- Chronological and timestamped
4Copyrightⓒ 2018 by SK telecom All rights reserved.
Which kinds of Blockchain Network do we need
Can you articulate a real business problem that needs solving?
Could it have been fixed before blockchain?
Do you need a database
Do many people need to write to it
Are writers known and trusted?
Are writers known and trusted?
Choose the best blockchain or distributed ledger technology
You don’t need ablockchain, but a privatedistributed ledger mayserve your purpose
Based on your use case determine the appropriate blockchain
Coordinate those entities into a consortium
Is consensus determined by multiple entities?
Do you want to rely on a trusted third party
Do you value censorship resistance and immutability over efficiency?
Do you need to control read and write access?
Will all participants need to upgrade and replace system?
Do the benefits justify the cost of adoption?
You probably need a public blockchain
However, another distributed ledger technology might be better
You probably don’t need a blockchain
(Hybrid)Private PublicY
Y
Y
Y
Y
Y
Y
Y
Y
Y
YYou might
need a blockchain
Y
N
N
N
N
N
N
N
N
N
N
N
N
Consortium
Source : Blockchain Capital LLC
5Copyrightⓒ 2018 by SK telecom All rights reserved.
Blockchain Technology with Existing Industry
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SKT Chain-Hub Infra - Cross Chain Connection & interoperation- Data Management for Digital Asset- Digital Asset Exchange- Enterprise Blockchain Features
6Copyrightⓒ 2018 by SK telecom All rights reserved.
SKT Chain-Hub Platform to Connect Peer and Business
Off-Chain Infrastructure
BlockchainBiz Model
Cash BackPoint
Biz Logic Implementor
Crypto Payment
API Gateway
Account/contract
Management
Interoperation Chain
Network
Security
Token Mechanism S
mart
Contra
cts
Public Blockchain
Ethereum/Bitcoin/EOS …
DecentralizedExchange
Cryptocurrency& Digital Asset
CreativeAsset
Communi-cation
IoT Supply Chain
Storage
Multi-Chain Interoperation(Distributed Ledger)
Database
Exte
nsio
nFeatu
res
Account Permission
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Private Blockchain
…
7Copyrightⓒ 2018 by SK telecom All rights reserved.
Distributed Trust collaboration for Multi-Chain
Inter-Communication API Modul
ToolExtension
Extension FeturesInterBlock- Data ChannelingInterChain- Data ChannelingGUI/Web dashboard / Admin- -terminalMulti- -Attatcher management
SDK Extension
Authority Control
Consensus Algorithm
Event Framework
System Chain-code
ToolExtension
Ethereum Ripple others
Multi-Chain API
Off-chain InfraOff-chain Infra
Asset ExchangeAsset Exchange
SKT Multi-Chain Platform supports public/private blockchain systems and is able to connect applications which is running on the different blockchain networks
8Copyrightⓒ 2018 by SK telecom All rights reserved.
Off Chain Infrastructure
Off-chain N-party payment channels have been proposed as a solution to scaling both costs and speed
A B
On-Chain
SKT Off-Chain
State Channel
Off-chain Transactions
1 Ether
C H
1 Ether 1 Ether 1 Ether
1 Ether
1 Ether1 Ether
1 Ether
1 Ether
1 Ether IPFS
9Copyrightⓒ 2018 by SK telecom All rights reserved.
Decentralized Asset Exchange
Communication Module
Protocol Module
RelayUnit
Smart Contract
Unit
Virtual Machine 1
Virtual Machine 2
Makers
Takers
PKIUnit
IPFS
Decentralized Exchange IPFS SecurityModule
In the currency/data exchange system all digital asset (with consent of the owner) can be discovered and traded while meeting individual privacy requirements.
10Copyrightⓒ 2018 by SK telecom All rights reserved.
Application Scenario with Creative Asset on the Blockchain Network
Payment
Chain connection
TokenManager
Account
Off
-Chain
Infr
a
Asset Exchange
Artist(Creator)
Consumers
DigitalAsset
CryptoTransaction
BizUnit
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Consumers
DigitalAsset Biz
Unit
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BizUnit
CryptoTransaction
CryptoTransaction
OperationFee
Reword
Reword
Private Network
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BizUnit
IPFS
Currency Network
Service Platform
Third-PartyPartnership
Public Blockchain
11Copyrightⓒ 2018 by SK telecom All rights reserved.
How we support Web 3.0 on the Blockchain Network
Dapps Browsers
Decentralized Application
Cryptographic Network & Transport Protocol
Internet Routing Protocols
Infra-structure
Access Network
Core Operation
Trust NetworkService
Messaging
Data Feeds
StorageState
MachineConsensus
State Channels
GovernanceOff-chain
Computing
The Web 3.0 Abstract Stack
SKT builds the infrastructure for Web 3.0 trust network which is cross-chain, cross-system, cross-industry, cross-application, and cross-device.