FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

WHAT IS INTERNET SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A website has a digital certificate issued by a Certificate Authority (CA). The session key generated for the SSL session between a browser and the server hosting the website is encrypted using ____ .
A
The CA’s public key.
B
The CA’s private key.
C
The public key that comes with the digital certificate.
D
The CA’s public key.
Explanation: 

Detailed explanation-1: -In the digital certificate, the digital signature proves that a trusted CA issued the certificate and it was not modified by any other party.

Detailed explanation-2: -A Web server using a digital certificate can use its private key to make sure that only it can decrypt confidential information sent to it over the Internet. The Web server’s certificate is validated by a self-signed CA certificate that identifies the issuing CA.

Detailed explanation-3: -After the secure connection is made, the session key is used to encrypt all transmitted data. Browser connects to a web server (website) secured with SSL (https). Browser requests that the server identify itself. Server sends a copy of its SSL Certificate, including the server’s public key.

Detailed explanation-4: -Technically, SSL is a transparent protocol which requires little interaction from the end user when establishing a secure session. In the case of a browser, you can tell if a site is using SSL when a padlock is displayed or the address bar shows the URL as HTTPS instead of HTTP.

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