The Principles of Encryption
Encryption is an important issue in the security world. Before entering this topic, it is important to differentiate between the degree of security of computer and network security. The level of computer security refers to the data set on computer viruses and hackers, while network security is related to fix the data while traveling on the network links.
Encryption is part of network security and it relates to hide sensitive data while traveling on the network. This is done because there are some programs able to read these data may be sensitive to reveal as with numbers and passwords by credit card.
There are two important types of algorithms to implement encryption: symmetric encryption and asymmetric encryption. In symmetric encryption, data is scrambled using a key on the transmitter and the receiver are processed using the same key. Thus the two keys are the same for the data to be readable.
On the one hand, an asymmetric encryption, a different type, uses two different keys at the transmitter and receiver to encrypt the data, called the public key and the other called the private key. The public key must be known to everyone who wants to communicate with the person with the key but the private key must not be known for encryption to be successful.
Each of the above techniques has its uses and benefits. The symmetric encryption is used on the transfer of data but the usual difficulties arise due to a broad topic sharing called key in which the key must be shared between the transmitter and receiver in a safe manner without revealing it. Often we find that the public key encryption is used in the division while the main main symmetric encryption is used to transfer data. Thus the overall encryption system on modern devices can use both techniques together.
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