EDITOR ’ S QUESTION
DAVID URIBE , CTO ORACLE COLOMBIA AND ECUADOR
wWhat does Blockchain facilitate and why does it make it so secure ?
The answer is simple : By having a replica of the information distributed among the different participants , the information is prevented from being changed , making it immutable . In terms of hacking , this is extremely positive , especially if one considers that for security reasons any information that is hacked in a single copy will be incompatible with the others and will prevent you from accessing and changing the information throughout the network .
The above , in addition , is also one of the main characteristics that differentiate this technology from traditional software . Well , if we see how the software worked previously , we can see that it saved the information in a single copy and could not be shared or accessed by another person . That is why Blockchain begins to gain popularity in the cryptocurrency sector because if users need to pass money to another person , this transaction is controlled and monitored and there is no need for an intermediary since each transaction is reflected with Blockchain on the network .
The same happens with supply chains , since they record the process step by step : from its creation to the distribution process , allowing the sharing of shipping details , cold chains , product quality , distribution places and dates on which every action was carried out .
Another important point to highlight about Blockchain is the fingerprint or ‘ hash ’ that each block has and that allows it to be integrated with other blocks . That is , when the first block is born , it is created with a specific fingerprint that , to be compatible with other blocks ,
must be replicated in the creation of each of the blocks that are created from then on . Hence the requirements that must be considered when creating or using Blockchain . These include :
1 . That it complies with a Blockchain standard . At Oracle , for example , we use Hyper Ledger Fabric .
2 . There cannot be a single participant who has the truth . There must be multiple versions of the truth that are spread across multiple participants . 3 . There must be a consensus mechanism for the news that is happening in the chain . 4 . It must ensure that it has the least possible human intervention , so the business rules of the chain must be written in programming languages . This is achieved with technologies such as the IoT , which directly send the information to the book and save each process or event .
5 . Business rules must be agreed upon by all parties and are agreed upon as a contract and must be written in a programming language so that it is the machine that performs those business rules and not a human being , to the most possible extent .
6 . The immutability of information : what is written is written .
7 . It must meet the demands of scalability because Blockchain is a technology that is constantly growing .
8 . You must comply with the security requirements related to enrollment keys .
And each of these requirements makes this technology so attractive , safe and efficient today . But what stands out the most and what differentiates this from other software is that it is impossible to change the information , erase data or make the collected data mutable .
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