Security Basic
来源：公众号“ Elektroauto”
2021-08-11
887
When exchanging data over the internet, the data reaches the other party after passing through a variety of networks and devices.
Because of that, security to using the internet safely.To begin, let us take a look at the 4 prominent problems that can occur when data is being sent accross the internet.Case1- When party A tries to send a message to party B...There is a possibility that the message contents are intercepted by the party X during transimission.
This problem is called "Interception".Case2- Even though party A meant for the message to be sent to partu B...
There is a chacnce that the party X was posing as party B.
Conversely, although party B believes they received a message from paryt A...
There is a change that party X was posing as party A.This problem is called "spoofing".
Case3- Even if the transmission of party A's message to party B was completed...There is a chance that party X had overwritten the message during transimission.
This problem is called "falsification".In addition to intentional falsification by third parties, there is also the chance that the delivered message was damaged by some malfunction during transimission.
Case4- While party B believes they received a message from party A...If the sender of the message, party A, had some malicious intent...
There is a chance that party A later insists "That is not the message/ sent!"
When something like this happens, the internet is no longer a viable medium for business transactions or contracts.
This problem is called" repudiation".We already introduced the 4 prominent problems. Furthermore, these problems are not limited to exchange between people, but can also occur while browsing a website.
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