Skip to main content

What are cookies and its types? Where are cookies used?

A cookie or an HTTP cookie can be defined as a message used by an origin website to send the information about the state to the browser of the user and by the browser to send the information about its state to the origin site.

An HTTP cookie is known by many names such as web cookie, browser cookie etc.

The information of the state that is sent across the origin site and the user’s browser is used for the purpose of:

- Authentication
- Identification of the session of an user
- Preferences of the user and
- Contents of the shopping cart

In other word HTTP cookies are used for any purpose that can be accomplished using the process storing text data on the computer of the user.

Characteristics and Uses of Cookie
- The main characteristic of Cookies is that they cannot be programmed and thus, cannot carry any kind of viruses or worms.

- Any malware cannot be installed on the host system with the use of a cookie. So they are safe to this extent.

- However, cookies can be effectively used by a spyware to track the browsing activities of the users.

- This is a major privacy concern and has prompted European and US law makers to take action in the past few years.

- Cookies are very easy to steal and are thus often misused by the hackers.

- Hackers steal the cookies and use them to gain access to the web account of the victim.

- Cookies were first used to solve the problem of implementation of the shopping cart.

- Initially the cookies were developed for the Netscape browser.

- They were used to check if the earlier visitors visited the site again.

- Later cookies were developed for internet explorer and other browsers.

- The concept of the cookies was not widely known to the public at that time.

The term “HTTP cookie” came into existence in the year of 1994. It has been derived from “magic cookie”.

What are Magic Cookies?
- Magic cookie was actually a data packet that a program receives and sends again to the program on the other side without altering the contents of the packet.

- Magic cookies were used in computing systems long back and were introduced in web communicatiC cookies can be effectively used by a spyware to track the browsing activities of the users.

- This is a major privacy concern and has prompted European and US law makers to take action in the past few years.

- Cookies are very easy to steal and are thus often misused by the hackers.

- Hackers steal the cookies and use them to gain access to the web account of the victim.

- Cookies were first used to solve the problem of implementation of the shopping cart.

- Initially the cookies were developed for the Netscape browser.

- They were used to check if the earlier visitors visited the site again.

- Later cookies were developed for internet explorer and other browsers.

- The concept of the cookies was not widely known to the public at that time.

The term “HTTP cookie” came into existence in the year of 1994. It has been derived from Secure cookie:
- These cookies are used by the browser if it accessing server through an HTTPS connection.
- This ensures that the cookie is always encrypted during the transmission of the information.
- This prevents cookie theft.

HTTP only cookie:
- This type of cookie is mostly supported by all the modern browsers.
- On a browser which supports HTTP, an HTTP only cookie is used during transmission of HTTP requests.
- It restricts the access from other non HTTP scripts.

Third party cookie:
- The first party cookies are set with the same domain or sub domain in the address bar of the browser.
- But, third party cookies are set with various domains other than the one mentioned in the address bar.

Super cookie:
- A cookie with a public suffix domain like .co.uk, .com etc.

Zombie cookie:
- This cookie is automatically recreated after its deletion

Comments

  1. This is my first time visit at here and i am in fact pleassant to read all at one place.

    ReplyDelete

Post a Comment

Your Comment Here!.....

Popular posts from this blog

AGRICULTURAL SCIENTIST RECRUITMENT BOARD

Agricultural Research Service

National
Eligibility Test/ Senior Research Fellowship Examination 

The Agricultural Scientists Recruitment Board (ASRB)
 holds a Competitive Examination for recruiting Scientists of the ARS in the pay scale of Rs. 8,000-13,500 in the ICAR Institutes, combined with National Eligibility Test (NET) for recruitment of Lecturers and Assistant Professors by the State Agricultural Universities (SAUS) and for award of ICAR Senior Research Fellowships.

The selected candidates for Agricultural Research Service must serve in the institutes to which they are posted until they find appointment for higher positions through selection at other institutes.

(i) Candidates successful in ARS are appointed as Scientists in the Indian Council of Agricultural Research in the pay scale of Rs. 8,000-13,500.

(ii) Candidates clearing the National Eligibility Test are recommended to various State Agricultural Universities who will consider them for appointment as Lecturers or Assistant Pro…

CIVIL SERVICES' (I.A.S.) EXAMINATION

The Union Public Service Commission (U.P.S.C.) conducts Civil Services' Examination once a year in two stages. The Preliminary Examination (Objective Type) for selection of candidates for the Main Examination is held in the month of May.

The Civil Services Main Examination
 is held in the months of October/November. Blank application forms and other particulars are published in the Employment News, generally in the month of December.

The last date for the submission of applications to the Secretary, Union Public Service Commission, Dholpur House, Shahjahan Road, NewDelhi-11001 1 is usually the last week of January of the year of examination.

The Combined Civil Services Examination is conducted for Recruitment to the following Services/Posts:

1. Indian Administrative Service.
2. Indian Foreign Service.
3. Indian Police Service.
4. Indian P & T Accounts & Finance Service, Group 'A'.
5. Indian Audit and Accounts Service, Group 'A'.
6. Indian Customs and Central Excise S…

HSC Exam Time Table 2013 Arts, Commerce, Science

HSC Exam Time Table 2013:- Date: 21 Feb 2013 (Thursday)

Paper: (Marathi / Gujarati / Kannada / Sindi / Malyalam / Tamil / Telugu / Punjabi / Bengali
Time: 11.00 am to 2.00 pm

Date: 22 Feb 2013 (Friday)

Paper: Hindi
Time: 11.00 am to 2.00 pm
Paper: German / Andhramagadhi / Persian
Time: 3.00 am to 6.00 pm

Date: 23 Feb 2013 (Saturday)

Paper: English
Time: 11.00 am to 2.00 pm

Date: 25 Feb 2013 (Monday)

Paper: Secretarial Practice
Time: 11.00 am to 2.00 pm
Paper: Physics
Time: 11.00 am to 2.00 pm
Paper: Political Science
Time: 3.00 am to 6.00 pm

Date: 27 Feb 2013 (Wednesday)

Paper: Book Keeping & Accoutancy
Time: 11.00 am to 2.00 pm
Paper: Chemistry (will Be held on 26 March)
Time: 11.00 am to 2.00 pm
Paper: Philosophy
Time: 3.00 am to 6.00 pm

Date: 1 March 2013 (Friday)

Paper: Mathematics & Statistics Paper (Revised)
Time: 11.00 am to 2.00 pm
Paper: Mathematics & Statistics - I (Commerce)
Time: 11.00 am to 1.00 pm
Paper: Sociology
Time: 3.00 am to 6.00 pm

Date: 2 March 2013 (Saturd…