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File encryption

Among the numerous methods of information protection, encryption is quite popular. It seems that there is nothing easier than to take any algorithm, which is known to only one person, and to create out of it something that third parties will not be able to understand. Everything is relatively easy and effective at the same time. Experts emphasize that the use of this method would be the best solution.

But, some people simply do not understand what kind of efficacy is in question if encryption is characterized by such simplicity. The essence of the method is to properly choose the algorithm. Today there are many ciphers and even entire encryption systems and all of them are complex in their own way. The experts have even developed a special classification, and distinguish asymmetric and symmetric ciphers. It would be nice to understand in more detail what is the difference between them and what characteristics distinguish them in the first place.

Symmetric ciphers

Such encryption systems are as simple as possible. Their essence lies in the fact that both users that apply an algorithm know the information regarding passwords. That is, before starting exchanging messages, the ciphers are agreed and communicated with each other. In other words, using one and only password it is possible both to decrypt and encrypt data exchange. It is important to understand that if third parties will know the password, the threat will hover over the entire system, and it would no longer be considered protected.

Asymmetric ciphers

Symmetric algorithms lose their relevance every year. More and more often people use asymmetric ciphers models. The essence of this method lies in the two keys. The first is responsible for ensuring that the message is properly encrypted, and that key is sent when sending data. In expert circles it is considered to be open. Information about the second key is known only to those persons among whom the message exchange is actually performed. Basically, this method allows to decrypt the password to the code that is used directly in the message.

Encryption in VPN-connections

Data protection can be carried out also by connecting via so-called virtual private network. It is important to understand the detail, that encryption is provided only between the client and the VPN-server directly. However, despite these limitations, it is a great way to effectively protect sensitive information and prevent access of hackers to it. In many ways, the level of protection depends on the provider. And while one part of them are relatively light-minded about the creation of algorithms, others develop truly complex schemes, which is almost impossible to discern. Some decide not to provide any protection at all.

In conclusion

In general, it can be concluded that the encryption is fairly good method by which the necessary information can be protected. Attackers may need more than one day or even a week or a month getting to know the coveted password. But at the same time it should be understood that it is necessary to deal with the keys in accordance with all the rules, otherwise there is a high probability that third parties will be able to decrypt the password. And the most important, this information must be kept in a strict secret from others. The more people know which password is used, the greater will be the threat of computer hack.

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