HTTPS certificate WIKI

Operation

The principle of operation of digital certificates is based on the encryption of information and trust. For this, there are two encryption methods:

Symmetric keys

This method is the easiest to understand: if Anne (A) wants to send an encrypted message to Bob (B) it shall disclose a password (key). As the encryption algorithm is symmetric, we have the following relation: Ciphertext = Encryption (key, text)

 

And Anne can also decrypt a message from Bob with the same key. But you must first find a safe way to transmit the key to prying eyes. However, the situation can become complex, so Anne must send an encrypted message to Bob and Charlie, but she does not want to give the same key to Charlie. The more people, the more difficult it is to manage symmetric keys. Especially since he must first find a safe way to transmit the key to prying eyes.

Asymmetric keys

Ownership of asymmetric algorithms is that a message encrypted with a public key is readable only by the owner of the private key corresponding. Conversely, a message encrypted by theprivate key will be readable by anyone with the public key . And with his private key, Anne:

Definition https certificate

An electronic certificate (https certificate) (also called digital certificate public key certificate e) Can Be seen Like a Digital Identity card. Is it used mainly pour ou physical entity identifier June moral, but also casting encrypt Exchanges.
Is it signed by a level of confidence Who certifies the link entrepreneurs Identity physical and digital entity (Virtual).
The most common standard used for the creation of the interest the X.509 Digital....

HTTPS Certificate Overview 2013

HTTPS certificates are a way to ensure that your customer information does not fall into the wrong hands and helps to protect the security of buying from you.

How HTTPS certificates work

When an HTTPS page is submitted, the certificate guarantees the identity of thearea and that information is in a verified address rather than a lateral location / unsecured. A message is displayed to a website visitor if there was a problem with the process (such as not being able to access the HTTPS certificate or its out of date) and ask how you want to proceed.

The need for HTTPS certificates

HTTPS certificates are absolutely necessary if your site accepts sensitive information such as credit card payments. Ensure the details of your HTTPS certificate are mainly displayed on your website allows visitors to feel more comfortable with their transactions...