Hello Sesame !
Have you ever had a secret place that only your family knew, in case you forgot to leave your keys at home? Or have you ever left your company access key card at home and gone back to grab it? Have you ever gone back home because you thought the car key was in your bag and went to the parking lot, but the key was not in your bag?
These days, most people have their own smartphones, and they solve many things in their lives with just a smartphone. For example, you can use Samsung Pay, Apple Pay, and Line Pay to pay with a smartphone without a physical card.
But what about keys? Payments are similar to keys in that they allow transactions to be made so that people can buy things and keys allow
people to access specific spaces and things. However, the keys haven’t been fully developed like the payment system.
The fact that most people check their company access card key, car key, and house key before they leave their house in the morning proves this.
As mentioned, we should check each physical key before we move to any place. Also, if we lose our keys, we should report them to the police. Not to mention certain RF cards can be easily hackable and copied. If someone with purpose copies our keys, anything can happen at any time.
What if…
A smartphone can manage all your digital keys, and only you can use them without any possibility of losing them?
Our team, the sesame lab, is working toward the goal of creating a single master key by creating an integrated digital key platform. In particular, our main goal is to adopt blockchain technology to secure digital keys safely and stably.
Let’s break down how we adopt blockchain technology in our service.
[I. Introduction of Blockchain Technology]
What do you think of when it comes to the word “blockchain”? Cryptocurrency? Investment? Data…?
Those are all significant words.
However, in terms of the essence of blockchain, blockchain can be defined as a data-distributed processing technology that improves data reliability.
1. Distributed Ledger Technology: Data Reliability
As mentioned, the initial value of blockchain technology is a technology that improves data reliability.
First, construct a distributed ledger by storing databases on a distributed node, instead of a centralized server. In addition to separating and storing the ledger, the blockchain also validates the previously recorded ledger data by signing it with a specific encryption algorithm. If the ledger data on a particular node is modified for malicious purposes, the signature value will be different, compared to the distributed ledger stored on other nodes. Nodes with ledger data compare signatures to verify valid signatures by majority consensus and treat maliciously modified data as invalid.
As such, distributed ledgers can improve data reliability.
2. Smart Contract: The Beginning of Distributed Computing
By adding the concept of smart contracts, Ethereum networks have extended the transaction between individuals to a structure in which contracts are guaranteed to P2P without a third certification authority.
However, smart contracts are expanding beyond the form of P2P guarantees to act as virtual computers and can act as distributed servers such as database creation and invocation. In addition, hackers cannot attack data stored in a block using smart contracts because only authorized users can modify the data.
Furthermore, the blockchain network, which acts as a server, has the advantage of diversifying operating and developing entities so that servers are not interrupted by specific server issues and can reliably function as servers.
[II. The Problem that Sesamelab Detects]
Creating an integrated digital key platform through the advantages of blockchain technology described above is the key to the problem we are trying to solve in Sesame Lab.
The high data reliability of the blockchain is the first essential element of the digital key. When using a digital key properly, the digital key should always function at any time. However, if the digital key comparison data stored by the server is unreliable, it cannot act as a digital key.
For example, assuming that there is an intangible lock that validates a digital key, if the lock is modified to fit the digital key created by a particular hacker, there might be a significant problem with the safety of the digital key.
Second, the blockchain network is a server accessible to anyone, and it is reliable and does not cause service disruptions due to specific server failures. Anyone who wants to use a digital key can obtain and use the digital key we provide and can use it reliably without interruption due to a sudden server failure.
With the following posts, we would like to introduce the connection between digital keys and blockchain technology.
