meetup 19/12/2016 - blockchain-as-a-service voor antwerpen?

THE LEDGER. // Hyperledger @Digipolis

A subtle introductionTo Hyperledger

TheLedger.Part of the Cronos Group

Thomas Marckx – theledger.


Thomas Marckx

[email protected]

Blockchain Developer

@MarckxThomas


Let’s start your blockchain adventure

TRAIN • ADVICE • PROTOTYPE • BUILD

@wearetheledger

Theledger.be


Digipolis … go!

Enterprise Blockchain?!

Hyperledger Fabric

Hyperledger Project

Blockchain ops

Q&A


Evolution of decentralization

No internet Current internet


Distribution

Open collaboration systems

no-points-of-failure

Infinite scalability

Fast innovation

Internet of assets

Blockchain


No gain … all pain

Subjective theory of value

Value by consensus

Consensus by witness


a mechanism to draw fact-based conclusions In an auditable way

Open Public BlockchainsAll the way!


Not quiet open-ready

Anonimity / identity

accountability

Energy consumption of POW

Scalability & performance No Audit support

Privacy

cryptocurrency

Slow transaction confirmation


A case for enterprise

Permission

Performance

modularity

Compliance auditingCost-efficient

Settlement finality

governance

privacy


Hyperledger Project


Linux foundation presents… Https://hyperledger.org

The Hyperledger Project is a collaborative effort created to advance blockchain technology by identifying and addressing important features for a cross-industry open standard for distributed ledgers that can transform

the way business transactions are conducted globally.

Modular frameworks

Permissioned Enterprise Blockchain

Open source

100+ members & partners

Shared Ledger

Blockchain 2.0

Permission

Smart contract

consensus


Hyperledger Blockchain Frameworks

FabricMoreinformationalteronCodebasefromIBMBlockchain

Sawtooth LakefromIntelcodebasemodularPoET consensusmechanism

IrohaJapaneseforcolorMobilelibraries&componentstoforablockchain network

CordaAnounced bytheR3Consortium

Fabric

Iroha

Sawtooth lake

Corda

IBM codebase

Pluggable consensus

Most advanced

Japanese

Mobile libraries & components

Intel codebase

Modularity

PoET & quorum

R3 consortium


Hyperledger Fabric


What, what .. Whaaat?

PEER

MembershipServices

Validating peers

Ledger of tx

World state

Membership services

Credentials & certificates

Users & peers

Pluggable consensus

None

Practical ByzantineFault tolerance

Smart contract

Go & java

Key-value storage


Got my tools…

Rest api

Chaintool

SDK’s

NODEJS – hfc package

JAVA

Python


Version 0.6

Ecerts

API

Backend api(nodejs)

PEER

PEER

PEER

PEER

…

SMART Contract

MembershipServices

User

SPoF


Breakdown

MembershipServices

API

Backend apiUser

PEERkeys

deployInvokeQuery

Register enroll


Privacy through encryption

Rick

Jessica

MembershipServices PEER

PEER

PEER

PEER Rick

Rick&

jessica

Practical Byzantine Fault Tolerance


Practical Byzantine Fault Tolerance Consensus and the Blockchain Network

SMART CONTRACT

Applications

Blockchainoperator

Configure,operates

INVOKE SMART CONTRACT

deployed to &executes onpeer nodes

Consensus Network

PeerExact network structure dependson consensus mechanism. e.g.PBFT has leader, validating andnon-validating peers

Consensus messages flow between appropriate peers to ensure the Blockchain SC transactions are kept in order; world state is kept consistent through local transaction replay


Practical Byzantine Fault Tolerance How does it work – Submission

Consensus Network

N

V

VL

Non-validating peer

Validating peer

Validating leader

NV

NVL

N

V

N

V

123

456

789

Transactions submitted to network

123 456 789

789 456 123

456 123 789

456 789 123


Practical Byzantine Fault Tolerance How does it work – Ordening

Consensus Network

N

V

VL

Non-validating peer

Validating peer

Validating leader

NV

NVL

N

V

N

V

123

456

789


123 456 789

123 456 789

123 456 789

123 456 789

Consensus networkestablishes order as

123 456 789


Practical Byzantine Fault Tolerance How does it work – execution

Consensus Network

N

V

VL

Non-validating peer

Validating peer

Validating leader

NV

NVL

N

V

N

V

123

456

789


123 456 789

123 456 789

123 456 789

123 456 789

Consensus networkestablishes order as

123 456 789

Lessons learned


SecurityandscalabilityEndorser(businesslogic)andcommitter(consensus)

Nowconfidentialtransactionscanbesenttospecificendorsersandtheircorrelatingcommitters,withoutthenetworkbeingmade cognizantofthetransaction.Additionally,policiescanbesettodeterminewhatlevelsof“endorsement”and“validation”areacceptableforaspecificclassoftransactions.

Lessons learned

Security & scalability

Peer seperation

Endorser – deterministic transactions

1+ membership services providers

Upgrade fabric & chaincode

Committer – Consensus / ledger consistency

Confidential transactions

Orderer – transactions in batch


Breakdown … again

MembershipServices

API

Backend apiUser

Endorserkeys

deployInvokeQuery

Register enroll

commiter

Orderer


Blockchain-Ops

Where’s the infrastructure?


Run in the cloud

Ibm - Bluemix

Microsoft - Azure

BaasStarter Developer networkHigh security

EBAASProject Bletchley


Blockchain ops by THELEDGER.

Run anywhere…

Docker containers

Automatic deployment

Scalable future

Kubernetes, docker swarm

Continuous integration of smart contracts

Mobile, Web, …

API’s, Business logic, integrations, Transformations,…

RDBM, NOSQL, Ethereum, Hyperledger,Bigchaindb,…

Docker, Virtual machines,Cloud Foundry, AZURE, IBM, Amazon, GOOGLE,…Monitoring

Full STACK


Have a christmas cookie @

http://blockchainbelgium.be

http://theledger.be

@wearetheledger

Veldkant 33B2550 - Kontich

meetup 19/12/2016 - blockchain-as-a-service voor antwerpen?

Government & Nonprofit