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Wednesday, July 17, 2019

Truffle Suite: Tools for Smart Contracts installation in UBUNTU 18.04 LTS

The following sets of screen shots show the Ubuntu installation part and a sample smart contract execution of Truffle,a personal blockchain for Ethereum development one can use to deploy contracts, develop  applications, and run tests.:

First command is to install npm
 The next screen shows installation of npm
 now we use npm to install truffle
 make a directory...I made a directory truffleproject as seen below:
 We also need to install atom...a code editor..available at atom.io
 In case of Ubuntu,download the .deb file from site
 Install atom

 Now download a sample smart code project metacoin
 Run Atom
 Open project
 Contracts...click
 choose Metacoin
 Run the code...
 

Wednesday, June 05, 2019

Astra Linux: Russian Linux-based computer operating system

Astra Linux is a Russian Linux-based computer operating system developed to meet the needs of the Russian army, other armed forces and intelligence agencies.It provides data protection up to the level of "top secret" in Russian classified information grade. It has been officially certified by Russian Defense Ministry, Federal Service for Technical and Export Control and Federal Security Service.I downloaded the iso image from https://astralinux.ru/products/astra-linux-special-edition/

Few screen shots during the installation :



















Cryptocurrency crimes and Blockchain Technology : Central Academy for Police Training(CAPT) Bhopal

The presentation was given at the Central Academy for Police Training(CAPT) Bhopal on 30 May 2019.The presentation covers an overview of what Blockchain technology is and how cryptocrimes are emerging off late with challenges to Law enforcement agencies.











Friday, April 05, 2019

BLOCKCHAIN TECHNOLOGY & CRYPTOCURRENCY CRIMES & CHALLENGES



Today gave a talk on  "BLOCKCHAIN TECHNOLOGY & EMERGING CRYPTOCURRENCY CRIMES & CHALLENGES". The talk was part of first of its kind FDP held at RGPV University Bhopal.Few pics as seen below from the event

 



 
Covered in press as seen below :

INDIACOM-2019 : Paper Presented on "Coalition of IoT and Blockchain: Rewards and Challenges"

6th International Conference of INDIACom-2019, aimed at providing an effective platform to the researchers from all over the world to show-case their original research work, & have effective exchange of ideas and develop a strategic plan for balanced and inclusive growth of economy through IT in critical areas like E-Governance, E-Commerce, Disaster Management, GIS, Geo-spatial Technologies, Nano-Technology, Intellectual Property Rights, AI and Expert Systems, Networking, Software Engineering, High Performance Computing  and other Emerging Technologies. INDIACom-2019 was held held at Bharati Vidyapeeth, New Delhi (INDIA).I presented a paper on "Coalition of IoT and Blockchain: Rewards and Challenges"

Copy of the paper at  https://bvicam.ac.in/news/INDIACom%202019%20Proceedings/Main/papers/1042.pdf




Sunday, March 31, 2019

Proof of Work and connect with BYZANTINE Generals

Proof of Work (PoW) is the original blockchain consensus algorithm, and is used in projects such as Bitcoin. It is the mechanism that enables users on a blockchain network to reach an agreed ‘truth’. A proof of work is essentially an answer to a complex mathematical problem. It takes a lot of work to find the Nonce but is easy for others to validate.PoW solves the Byzantine Generals Problem as it achieves a majority agreement without any central authority, in spite of the presence of unknown/potentially untrustworthy parties and despite the network not being instantaneous.This presentation brings out the concept Byzantine Generals proof and its connect with Bitcoin.
 

Wednesday, February 13, 2019

SPLIT LARGE FILES INTO SMALLER PARTS & MERGE : FOR EASY MIGRATION in LINUX SYSTEMS

1.    Routine troubleshooting in system handling gives us a way to explore and try new options.Recently tried a new way to migrate large files(around ~17 GB in my case here ). Although there are easier options available by simply copying in a external device,but in my case external devices were not allowed so attempted to split the large file into 3 GB size files and then finally could merge them....and could also verify the hash....and it was absolutely right...sharing few screen shots :

2.    The entire thing of splitting and merging gets over in simple two commands of SPLIT & CAT

 > split -b file.name
 > cat x* > file.name

3.   I have a .vdi virtual image file which is approx 16 GB in size.The file details are seen in the screen shot below :


Here ..before I go for the split...I have taken the hash of the same to compare it later after i merge the split parts...to check the originality of files and I get the hash of the file as bb867749cf4c0325abe145a0998e3b04

 

In the screen shot below I use the split command,which is inbuilt to UBUNTU and typically all Linux systems....I split the file in 3GB parts...

 

This screen shot shows the watch screen shot of the populating split parts...


 This screen shot shows the watch screen shot of the populating split parts...


 and here i get the final .vdi file as well m able to match the hash as same ie bb867749cf4c0325abe145a0998e3b04


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