Bezant platform_20181212

Bezant Platform Utilizing Hyperledger Fabric

Agenda
01
01
a. What is Hyperledger?
b. Fabric
c. Sawtooth
Presenter Bio
02 Introduction to Hyperledger
03 Fabric vs Sawtooth
04 Bezant Platform

02
Blockchain Engineer
- Hyperledger Framework - Fabric, Sawtooth
- Hyperledger Tools - Cello, Caliper, Explorer
- Ethereum
- ICO
Kevin Park(박종하)
E-mail: kevin@jehmi.com
Presenter Bio Hyperledger Fabric vs Sawtooth
Presenter BioPresenter Bio
Bezant Platform

What is Hyperledger ? Hyperledger
03
Presenter Bio Hyperledger Fabric vs Sawtooth Bezant Platform
ref : https://www.hyperledger.org/

Hyperledger Fabric Hyperledger
04
Hyperledger Fabric is one of the blockchain projects within Hyperledger. Like other
blockchain technologies, it has a ledger, uses smart contracts, and is a system by which
participants manage their transactions.
Presenter Bio Hyperledger Bezant Platform
ref : https://blockgeeks.com/guides/what-is-hyperledger
Fabric vs Sawtooth

05
ref : https://blockgeeks.com/guides/what-is-hyperledger
- Architecture
Fabric vs Sawtooth

06
- Transaction lifecycle
ref : https://www.ibm.com/developerworks/cloud/library/cl-top-technical-advantages-of-hyperledger-fabric-for-blockchain-networks/index.html
Fabric vs Sawtooth

07
- Application flow
ref : https://jira.hyperledger.org/secure/attachment/10698/HL-Fabric-v1.0-Deep-Dive-20170424.pdf
Fabric vs Sawtooth

08
- Ledger
ref : https://jira.hyperledger.org/secure/attachment/10698/HL-Fabric-v1.0-Deep-Dive-20170424.pdf
Fabric vs Sawtooth

09
- Block header :
This section comprises three fields
Block number, Current Block Hash, Previous Block Hash
- Block Data :
This section contains a list of transactions arranged in
order
- Block Metadata :
This section contains the time when the block was
written, as well as the certificate, public key and
signature of the block writer
Each transaction contains a transaction proposal,
endorsement, and a proposal response. The Committing
peers, after receiving the blocks containing the transactions,
validate and store the block metadata as valid or invalid.
- Block Component
ref : https://blockchain-fabric.blogspot.com/2017/04/hyperledger-fabric-v10-block-structure.html
Fabric vs Sawtooth

- Releases
ref : https://jira.hyperledger.org/projects/FAB?selectedItem=com.atlassian.jira.jira-projects-plugin%3Arelease-page&status=unreleased
Fabric vs Sawtooth
10

11
- Release V1.4(18-12-13)
ref : https://jira.hyperledger.org/secure/Dashboard.jspa?selectPageId=11429
Fabric vs Sawtooth

- Release V1.4(18-12-13)
ref : https://jira.hyperledger.org/secure/Dashboard.jspa?selectPageId=11700
Fabric vs Sawtooth
12

13
- RoadMap
Fabric vs Sawtooth

Hyperledger SawtoothHyperledger
14
- Architecture
ref : https://sawtooth.hyperledger.org/docs/core/nightly/master/architecture.html
Fabric vs Sawtooth

15
ref : https://sawtooth.hyperledger.org/docs/core/nightly/master/architecture.html
- Network
Fabric vs Sawtooth

16
- Consensus :
Proof of Elapsed Time (PoET)
ref : https://sawtooth.hyperledger.org/docs/core/nightly/master/architecture/poet.html
PoET essentially works as follows:
1. Every validator requests a wait time from an enclave (a trusted function).
2. The validator with the shortest wait time for a particular transaction block
is elected the leader.
3. One function, such as “CreateTimer”, creates a timer for a transaction
block that is guaranteed to have been created by the enclave.
4. Another function, such as “CheckTimer”, verifies that the timer was
created by the enclave. If the timer has expired, this function creates an
attestation that can be used to verify that validator did wait the allotted
time before claiming the leadership role.
Fabric vs Sawtooth

17
- Kubernetes
ref : https://sawtooth.hyperledger.org/docs/core/nightly/master/app_developers_guide/creating_sawtooth_network.html#kubernetes-start-a-multiple-node-sawtooth-network
Fabric vs Sawtooth

18
- Sabre
ref : https://sawtooth.hyperledger.org/docs/sabre/releases/latest/sabre_transaction_family.html
Fabric vs Sawtooth
Transaction processors has various drawbacks from a distributed deployment
perspective, since some level of network-wide coordination is necessary to
modify transaction processors.
->
On-chain smart contracts have excellent characteristics for ad-hoc distributed
deployment. The code of the smart contract is deployed (or loaded) into global
state via a transaction. Other transactions cause that on-chain code to be
loaded into a virtual machine and executed. The most commonly used on-chain
smart contract system is Ethereum which uses the Ethereum Virtual Machine
(EVM) to execute smart contracts.

Fabric vs Sawtooth Hyperledger
19
- Compare
ref : http://hamait.tistory.com/989
Fabric vs Sawtooth

20
- Caliper
Fabric vs Sawtooth

21
- Caliper
Fabric vs Sawtooth

22
- Caliper
Fabric vs Sawtooth

23
BaaS Bezant Platform
Bezant platform offers a Blockchain as a Service, where a
partners can provide for their users a dynamic blockchain based
service and application.
Fabric vs Sawtooth

24
Architecture Bezant Platform
Fabric vs Sawtooth

25
Architecture Bezant Platform
Fabric vs Sawtooth

26
Endorsement Bezant Platform
Fabric vs Sawtooth

27
External Peer Bezant Platform
Fabric vs Sawtooth

28
Transaction Signing Bezant Platform
Fabric vs Sawtooth

29
Transaction Signing Bezant Platform
Fabric vs Sawtooth
- Client Signing v1.4
ref: https://jira.hyperledger.org/browse/FABN-932

30
Privacy Bezant Platform
- Guarantee Privacy in the same channel by private data
collection
- Guarantee Privacy by channeling service
- Provide SDK for Encryption and Decryption
- Support Encryption/Decryption on the Channel Level
the invoker of a chaincode passes in a cryptographic key via the transient
field
peer chaincode invoke -n enccc -C my-ch -c
'{"Args":["ENCRYPT","key1","value1"]}' --transient
"{"ENCKEY":"$ENCKEY"}"
Fabric vs Sawtooth

31
Private Data Bezant Platform
peer chaincode instantiate -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C mychannel -n marblesp -v 1.0 -c '{"Args":["init"]}' -P
"OR('Org1MSP.member','Org2MSP.member')" --collections-config collections_config.json
// collections_config.json
[
{
"name": "collectionMarbles",
"policy": "OR('Org1MSP.member', 'Org2MSP.member')",
"requiredPeerCount": 0,
"maxPeerCount": 0,
"blockToLive":1000000
},
{
"name": "collectionMarblePrivateDetails",
"policy": "OR('Org1MSP.member')",
"requiredPeerCount": 0,
"maxPeerCount": 0,
"blockToLive":3
}
]
ref : https://hyperledger-fabric.readthedocs.io/en/release-1.2/private_data_tutorial.html
Fabric vs Sawtooth

32
Private Data Bezant Platform
Fabric vs Sawtooth

33
Channels
vs Private Data Bezant Platform
Fabric vs Sawtooth

34
Channels
vs Private Data Bezant Platform
Fabric vs Sawtooth

35
Bezant Token Bezant Platform
Token chaincode is implemented with a standard similar to ERC20, with a few enhancements:
Fabric vs Sawtooth

36
FabToken Bezant Platform
Fab Token, a UTXO model, is expected to be released in V 2.0
ref : https://jira.hyperledger.org/browse/FAB-11144
Fabric vs Sawtooth

Presenter Bio Hyperledger IBM Garage IBM with Bezant Bezant Platform
DEMO Bezant Platform
37

Bringing the power of blockchain
to the world’s businesses

Bezant platform_20181212

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