How Work does a Certificate SSL?

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A certificate SSL allows you encriptar the sensible data sent from the navigator of the visitor from a site to your Web server, generally is numbers of password or credit cards.

The encryption is necessary because the data in the Web are sent commonly in legible text from a computer to another one, until it arrives at his destiny and therefore any equipment through which they pass those data can see that information. If an attacker is able to catch the traffic between the navigator of the user and the Web server where the website lodges, it could get to rob confidential information, to this type of attack is called to him “man-in-the-middle?.

Between the navigating Web and the Web server connection SSL settles down using a quite complex process denominated “cryptography of public key? next to a great amount of mathematical operations which in detail we will not enter. Essentially it is necessary to know that two pieces of data are used to form a connection SSL, a public key and a private key, that is to say, any thing based with the public key of the user will only be able to be based vice versa with the private key and.

We use an example, if Juan sends to Marta a message based with the public key of Marta, then only Marta will be able to open it, because only she has its private key. It is easy to imagine it as an envelope that can be sealed by anyone but that only Marta will be able to open.

As the deciphered coding and of private and public keys requires of much power of processing, it is only used when connection SSL is created for the first time with the aim of creating what a symmetrical key is called. This key is used to base the data of the webpage

Because the deciphered coding and of private and public keys requires of much power of processing, it is only used when connection SSL is created for the first time in the aim to create what a symmetrical key is called. The symmetrical key will be used soon to base the data of the webpage. This means that to use a certificate SSL only it will need a little more processing power that in the case of not using it.

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