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Blockchain

Impact on Architecture & Security

Emanuele Galdi

Rome, September 28th

#CWIN17

Blockchain - Impact on Architecture & Security| September 28th

Copyright © 2017 Capgemini. All rights reserved. 2

“The Blockchain is a lot like sex in high

school: everyone is talking about it,

nobody really knows how to do it,

everyone thinks everyone else is doing it,

so everyone claims they are doing it….”

(Chris de Rose 2015/Dan Ariely 2013)



What is a blockchain system?

Source: Blockchain - Wikipedia

Andrea Ema

1.000€ 990€

3 days

A blockchain is a decentralized and distributed digital ledger that is used to

record transactions across many computers so that the record cannot be

altered retroactively without the alteration of all subsequent blocks and the

collusion of the network.

Today if Andrea in USA

want transfer money to

Ema in Italy is necessary

to use a central trusted

party to regulate the

transfer

Central trusted party



What is a blockchain system?


Blockchain tried to find a

solution to eliminate

intermediaries, reducing

the time needed to

complete the operation

and make it cheaper

Andrea Ema

1.000€ 990€

3 days

Central trusted party

Andrea Ema

1.000€

Near real time







Distributed LedgerBlockchain

What is a blockchain?






Block

Transaction

Distributing the ledger to every nodes of the

network eliminating central authority

Creation of a chain of blocks where each block

where each block is guaranteed to come after the

previous block chronologically



What is a blockchain?






1. Andrea sends bitcoins to Ema 2. The transaction is configured into a block 3. The transaction is broadcast across

the entire network which validates it

4. The block is then added to the bitcoin blockchain which is a

public ledger recording the entire immutable transaction history

5. Ema receives bitcoins from Andrea



Cryptocurrency is just one of the applications for blockchain

Smart contractsSmart contractsAccount balances

Andrea: 30€

Raffaele: 100€

Ema: 150€

Blockchaine.g. Bitcoin, Dash, Monero



Cryptocurrency is just one of the applications for blockchain

Smart contractsSmart contractsSmart Contract

Blockchaine.g. Ethereum, Synereo, Lisk

StorageCode



What are smart contracts?

Blockchain systems

Coding Distribution Execution

Pre-written logic (computer code) Stored and replicated on a

distributed storage platform (eg a

blockchain)

Executed/run by a network of

computers (usually the same

ones running the blockchain) and

can result in ledger updates

(cryptocurrency payments, etc)



Functions of a trusted third party can be automated with the Blockchain

Buyer

Business

process

Business

records

Seller

Business

process

Business

records

Middleman facilitated transactions

Buyer

Business

process

Seller

Business

process

Shared business process

(Smart contracts)

Shared business records stored on shared

blockchain

Sh

are

dp

latf

orm

Blockchain facilitated transactions

Trusted 3rd

party

Shared

business

process

Shared

business

records

Shared platform

Messaging & management of discrepancies and

duplicates



Blockchain based technology will change the architecture of web application

Shared business process

(Smart contracts)

Shared business records stored on shared blockchain

Decentralized Application



Blockchain can serve various use cases beyond currency

Ascribe’s marketplace allows to generate digital

editions with a unique ID and a digital certificate of

authenticity to prove provenance and authenticity.

Authorship and

ownership




Commodities

Uphold is a platform for moving, converting , transacting

and holding any form of money or commodity. The

company connects banks, credit and debit cards and

bitcoin to digital wallets for free financial services and

transactions.




Insurance

A "smart insurance" tool that flyers can use to insure their

trips if their flight is delayed by two hours or more




Data Management

The company uses blockchain-based identity ledgers

in database management and data analytics to

support various applications. Businesses and

governments can use Factom to simplify records

management, record business processes and address

security and compliance issues




IoT

Filament is building the first decentralized IoT stack,

to ensure that devices can securely communicate and

transact value without any siloed infrastructure

required.



The blockchain technology will provide a platform for next generation

connected world

Asynchronous and offline

processes

Synchronous and real-time

processes

Stand-alone blockchains Interconnected blockchains

Local value chains Global value chains



Blockchain is still in its infancy



Thank You!

Phone: +39 3384313588

[email protected]

Emanuele Galdi

Managing Enterprise Architect

@emanuelegaldi

Speaker 1

Photo

www.capgemini.com

The information contained in this presentation is proprietary.

Copyright © 2017 Capgemini. All rights reserved.

Rightshore® is a trademark belonging to Capgemini.

About Capgemini

With more than 180,000 people in over 40 countries, Capgemini is one of With more

than 190,000 people in over 40 countries, Capgemini is one of the world's foremost

providers of consulting, technology and outsourcing services. The Group reported

2016 global revenues of EUR 12.5 billion. Together with its clients, Capgemini

creates and delivers business, technology and digital solutions that fit their needs,

enabling them to achieve innovation and competitiveness. A deeply multicultural

organization, Capgemini has developed its own way of working, the Collaborative

Business Experience™, and draws on Rightshore®, its worldwide delivery model.

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