Single sign-on is a mechanism Essay


Single sign-on ( SSO ) is a mechanism whereby a individual action of user hallmark and mandate can allow a user to entree all computing machines and systems where he has entree permission, without the demand to come in multiple watchwords. Single sign-on reduces human mistake, a major constituent of systems failure, and is hence extremely desirable but hard to implement

Types of SSO:

1 ) SSO Standards:

General demands for E-SSO

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  • The solution needs to be extremely available.
  • The solution needs to supply interfaces for backup, 24×7 monitoring and operations, etc.
  • The solution needs to be able to scale to many 1000s of users accessing endeavor package.
  • The solution should be able to back up the company-internal criterions defined for efficient operations and integrating without jobs ( e.g. , directory waiter criterions, hallmark criterions, etc. ) .
  • The solution should be able to easy incorporate in related IT solutions, for illustration bing individuality direction solutions, security event direction solutions, application direction solutions, or desktop package distribution solutions. [ 6 ]

How It Works:

Single sign-on plants on the footing where users authenticate one time and derive entree to multiple web applications or systems without holding to log in repeatedly.

most modern individual mark on systems use LDAP ( Lightweight Directory Access Protocol )

The Web application waiter at spycentral successfully verifies Bland ‘s watchword, and grants him entree to the URL. Once logged in, Bland is all set. He has been given entree to the SSO environment, and he can shop to other URLs in his environment without holding to log in once more ( see figure 1 ) .

Single sign-on enables users to authenticate ( log in ) one time and derive entree to multiple web applications, without holding to log in repeatedly.

How individual sign-on systems work is implementation dependant. For illustration, in a Windows NT ( or 2000 ) web, applications can utilize incorporate Windows NT hallmark mechanisms. If set up to necessitate peculiar users or groups of users, anyone who is allowed entree that has already been authenticated to that sphere will be granted entree. They do non necessitate to subscribe on once more.

Different company takes a different attack in implementing SSO, taking Novell as an illustration to exemplify the whole procedure:

All applications still have their ain usernames and watchwords, but they are stored in what they call SecretStore. Based on Novell attack, “ Once you authenticate to NDS, SecretStore automatically collects and code your application passwords the first clip you use them. When you following effort to utilize an application, the application ‘s client will seek to verify that you are authenticated to NDS. If NDS responds that you are authenticated, the client requests your application watchword from the SecretStore. NDS retrieves your encrypted watchword from the SecretStore and sends it to your workstation, where it is decrypted and used to give you entree to the desired application. This full procedure takes merely seconds and is wholly crystalline: Once you authenticate to NDS, Single Sign-on manages the remainder of your logon procedures. ”


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Benefits Of SSO:

The benefits of the SSO include the followers:


Single sign-on plays a major function in hiking an organisation ‘s security and protecting corporate confidential information. Its security parts include added security where end-users no longer have to utilize Post-it notes with their watchwords placed on or near their computing machines. Single sign-on besides helps to implement password security policies such as watchword quality and termination. With these two points, possible hackers have lesser chances to derive entree to the webs.


Single sign-on significantly improves user productiveness and convenience by enabling them to utilize merely one watchword with merely one login effort to entree their applications, liberating them from the defeat of holding to retrieve multiple watchwords and covering with repeated login prompts. End-users no longer hold to see downtime from waiting for watchword resets or recovery from the aid desk. This in bend leads to improved productiveness and hallmark easiness creates happier employees excessively.

IT Administrators/Help Desk Return on Investment ( ROI )

With lesser petition from end-users to do password reset calls utilizing individual sign-on, the aid desk can diminish the entire figure of calls it receives by every bit much as 30 %

Increase Security and Compliance

  • Strengthen and centralise user entree control
  • Improved coverage and monitoring for regulative conformity

ImproveUser Productivity and Convenience

  • Reduce frustrationof multiple log-on events
  • Remembering watchwords

RealReturn on Investment ( ROI )

  • Provides mensurable ROI across the organisation
  • Helpdesk cost nest eggs

Benefits of individual sign-on include:

  • Reducing watchword weariness from different user name and watchword combinations
  • Reducing clip spent re-entering watchwords for the same individuality
  • Can back up conventional hallmark such as Windows certificates ( i.e. , username/password )
  • Reducing IT costs due to take down figure of IT aid desk calls about watchwords
  • Security on all degrees of entry/exit/access to systems without the incommodiousness of re-prompting users
  • Centralized coverage for conformity attachment.

SSO uses centralized hallmark waiters that all other applications and systems utilize for hallmark intents, and combines this with techniques to guarantee that users do non actively have to come in their certificates more than one time.

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