This enables users of a basically unsecure public network such as the Internet to securely and privately exchange data and money through the use of a public and a private cryptographic key pair that is obtained and shared through a trusted authority.

Related MCQs

• Today, many Internet businesses and users take advantage of cryptography based on this approach.
• This is an encryption/decryption key known only to the party or parties that exchange secret messages.
• This is a mechanism for ensuring that only authorized users can copy or use specific software applications.
• Which of the following is NOT recommended for securing Web applications against authenticated users?
• This electronic "credit card" establishes a user's credentials when doing business or other transactions on the Web and is issued by a certification authority.
• This type of attack may cause additional damage by sending data containing codes designed to trigger specific actions - for example, changing data or disclosing confidential information.
• This is a trial and error method used to decode encrypted data through exhaustive effort rather than employing intellectual strategies.
• An intruder might install this on a networked computer to collect user ids and passwords from other machines on the network.
• This is a type of network security attack in which the intruder takes control of a communication between two entities and masquerades as one of them.
• This is a series of messages sent by someone attempting to break into a computer to learn which computer network services the computer provides.