--%>

Security Requirements and Attacks

Explain the term Security Requirements and Attacks in network security.

E

Expert

Verified

Security Requirements: There are five principle requirements that are addressed by network security:

  • Confidentiality requires that data is accessible only to authorized parties
  • Integrity requires that only authorized persons can modify the data
  • Availability requires that data be available to the authorized parties
  • Authenticity requires that services are able to verify the identity of users
  • Non-repudiation requires that services can ensure that a user cannot deny a previous action.

Security Attacks: Two major categories of security attacks are: 1) passive and 2) active attacks.

Passive attacks involve exposure of a message to a non-authorized party, such as in eavesdropping, but do not involve any alteration of the message content. These attacks are very difficult to detect, and they are best prevented by using various types of message encryption.

Active attacks involve some data modification and can be grouped in four categories:

  • Masquerade - when one entity pretends to be another one
  • Replay - passive capture of a data unit, and its retransmission
  • Modification of message - involves alteration of a portion of a message
  • Denial of Service - prevents the normal use of communication facilities

   Related Questions in Computer Network Security

  • Q : Explain Kerberos Explain the term

    Explain the term Kerberos.

  • Q : What is triple encryption Explain the

    Explain the term triple encryption?

  • Q : Message authentication What are the

    What are the types of attacks you think are addressed by message authentication? Why?

  • Q : What is Service set id or SSID-LAN

    SSID (Service set id): SSID is an identifier of the users of the network. SSID acts as a password and it is of 32 characters. The users in the particular network need to know the SSID. Since only users have the 32 SSID, the attackers cannot access the

  • Q : Define Google click fraud Google click

    Google click fraud: It is a type of internet crime which occurs in pay per click online advertising while a person, automated script, or computer program imitates legitimate user of any web browser clicking on an ad, for producing a charge per click w

  • Q : What is message authentication Explain

    Explain what is meant by the term message authentication? Describe the classes of message authentication function.

  • Q : Reusing the stream cipher key Explain

    Explain why it is not desirable to reuse the stream cipher key?

  • Q : Steps for preparing envelope data MIME

    Specify the steps used for preparing the envelope data MIME?

  • Q : Computer crime Explain the term

    Explain the term Computer crime and what are the Suggestion to stop them ?

  • Q : Project to simulate network attack

    Write an Idea for programming project to simulate a network attack or threat mechanism or a defense mechanism. Encipher message by using a keyword;

    Discover Q & A

    Leading Solution Library
    Avail More Than 1440063 Solved problems, classrooms assignments, textbook's solutions, for quick Downloads
    No hassle, Instant Access
    Start Discovering

    18,76,764

    1953693
    Asked

    3,689

    Active Tutors

    1440063

    Questions
    Answered

    Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!

    Submit Assignment

    ©TutorsGlobe All rights reserved 2022-2023.