Blockchain Cloud Storage | Advantages, difference with traditional cloud storage techniques
This page describes use of blockchain in cloud storage and mentions difference between Blockchain and cloud storage techniques. It also mentions advantages (i.e. benefits) of Blockchain Cloud Storage vs traditional cloud storage.
What is Blockchain Cloud Storage?
Introduction:
Blockchain technology is built using peer to peer networking.
In this technology, anyone can join the network and there is no central authority
to manage it. It is operated by people, called miners.
We have heard of digital currency, cryptocurrency and bitcoin.
The value of bitcoin is approximately INR 3,77,637 at the time of writing.
All these work based on Blockchain technology >> .
• The figure-1 depicts working of blockchain technology. As shown Blockchain works by validating transactions through
a distributed network in order to create a permanent, verified and unalterable ledger of information.
• Each blockchain, each block stores data of the transaction, its hash code and previous block's hash code.
So whenever a new block is being created, it is validated by majority of peers or miners on that network.
• If anyone tries to change the data in one block, the entire blockchain becomes invalidated.
Hence it is nearly impossible for anyone to change any of the attached blocks.
• This is how blockchain remains secure and managed.
Moreover in blockchain, all the data are encrypted for security purposes.
Difference between Blockchain and cloud storage for data storage
Following paragraphs explains basics of normal cloud storage and blockchain cloud stoarge. It also describes respective benefits of both of these methods of data storage.
Traditional Cloud storage
• As we know Google drive, Dropbox are basic examples of cloud storage.
The cloud storage allows users to store data online. Moreover it allows users to access the stored data
from anywhere and at any time.
• Now-a-days both individuals and government agencies are leveraging benefits of
public and private clouds to store, manage and manipulate the data.
All the data stored here is encrypted. Moreover cloud services are available under a range of SLAs,
covering data integrity and privacy.
• Many small companies have shifted their entire data centers on cloud due to
benefits such as elasticity, load balancing, redundancy, availability and integrity.
Cloud storage market is evolving and majority of cloud storage services are provided by
Google, Amazon and Microsoft. The companies such as Samsung and Apple are also offering
Samsung cloud and iCloud respectively to the users.
Refer cloud storage tutorial >> for more information.
Blockchain Cloud storage
• Unlike traditional cloud storage as explained above, blockchain data storage solution breaks users' data into small
chunks. After doing so, it adds additional security layer and distributes it throughout
the network. This has become possible due to use of hashing function, public/private key encryption and
transaction ledgers. Moreover each of these chunk of data is stored in de-centralized location.
• If anyone tries to hack it, then they will get encrypted data first. At later stage, they will get only chunk of the data and
not the whole file/block. This process helps in securing the documents in blockchain cloud storage technique.
• The owner in blockchain data storage is hidden as node does not store owner's data.
The participant (i.e. miner) only get chunk of data and hence all sensitive information is protected from other
miners.
• Data redundancy and load balancing techniques are used for high availability and faster access.
• Whenever a miner tries to fetch or access the data, all the chunks of data are first validated.
If any alteration is being noticed on the data chunk, first the miner who altered it is removed from the network.
Next altered part is replaced with another redundant copy available.
Hence all the users will get original and identical copies of the data.
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