Blog Day-15th (24th May, 2019)
During two days event, it was good summit for government, financial company and consulting people.
Still there are no organization who can manage cryptocurrency in Azerbaijan today, therefore, after my presentation, some banks are approached to discuss the possibility of service with them.
Cryptocurrency exchange market is not mature in some countries.
Therefore, still some opportunities are available any of place.
The key points of cryptocurrency exchange service is security of access.
100 % cold Wallet is the solution for some crypto currency exchangers.
But finally, wallet should transfer the value from wallet then, some vulnerability will arise.
I designed multiple layered security layer policy for exchange servicers and proposing secure sharing with anonymous node management in autonomous Decentralized Network System.
New research paper was done by today at my lab and will discuss this topics later in this blogs.
To manage decentralized node, snapshot is the one of technique to observe the node status continuously.
Refer coindesk.com/market-center/bitcoin-cash/
There are some snapshot algorithms are available.
There are four different types are very common for decentralized network environment in today.
· Chandy-Lamport algorithm
· Lai-Yang algorithm
· Spezialetti-Kearns algorithm
· Mattern's algorithm
Lai-Yang algorithm fulfills this role of a marker in a non-FIFO system by using a coloring scheme.
1 Every process is initially white and turns red while taking a snapshot.
The equivalent of the “Marker Sending Rule” is executed when a process turns red.
2 Every message sent by a white (red) process is colored white (red).
3 Thus, a white (red) message is a message that was sent before (after) the sender of that message recorded its local snapshot.
4 Every white process takes its snapshot at its convenience, but no later than the instant it receives a red message.
Also, Mattern’s algorithm is based on vector clocks and assumes a single initiator process.
They are used to create a consistent snapshot of the global state of a distributed system.
Due to the lack of globally shared memory and a global clock, this isn't trivially possible.