SSO meaning in Computing ?

Answer: What is Single Sign-On mean?

Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID and password to any of several related, yet independent, software systems.

True single sign-on allows the user to log in once and access services without re-entering authentication factors.

It should not be confused with same-sign on (Directory Server Authentication), often accomplished by using the Lightweight Directory Access Protocol (LDAP) and stored LDAP databases on (directory) servers.

A simple version of single sign-on can be achieved over IP networks using cookies but only if the sites share a common DNS parent domain.

For clarity, a distinction is made between Directory Server Authentication (same-sign on) and single sign-on: Directory Server Authentication refers to systems requiring authentication for each application but using the same credentials from a directory server, whereas single sign-on refers to systems where a single authentication provides access to multiple applications by passing the authentication token seamlessly to configured applications.

Conversely, single sign-off or single log-out (SLO) is the property whereby a single action of signing out terminates access to multiple software systems.

As different applications and resources support different authentication mechanisms, single sign-on must internally store the credentials used for initial authentication and translate them to the credentials required for the different mechanisms.

Other shared authentication schemes, such as OpenID and OpenID Connect, offer other services that may require users to make choices during a sign-on to a resource, but can be configured for single sign-on if those other services (such as user consent) are disabled. An increasing number of federated social logons, like Facebook Connect, do require the user to enter consent choices upon first registration with a new resource, and so are not always single sign-on in the strictest sense.

reference

Full Form	Category
SpaceShipOne	Academic & Science
Source Selecting Official	Academic & Science
Struck Submerged Object	Academic & Science
Student State Officer	Academic & Science
Student Services Office	Academic & Science
Sao Lourenco	Airport Code
Spdr S&p/asx Small Ordinaries Fund	Business
Shared Service Organization	Business
Survey Software Online	Business
Storage System Operator	Business
Silver Standard Resources Incorporated	Business
Sanitary Sewer Overflow	Community
Springfield Symphony Orchestra	Community
Singapore Symphony Orchestra	Community
School Support Officer	Community
Speech Service Option	Computer and Networking
Small String Optimisation	Computer Technology
Single Sign-On	Computing
Server Side Object	Computing
Software Storage Object	Computing
Stateful Switch Over	Computing
Shared Storage Option	Computing
Single Small Outline Package	Computing
Satellite Switching Office	Computing
Software and Solutions Organization	Computing
Shell Service Object	Computing
Semi Synthetic Oil	General
Super Stock Open	General
Super Stock Alcohol	General
Super Street Outlaw	General
Super Street Oil	General
Satria Street Shoot Out	General
Secret Supercar Owner	General
Superior Soap Opera	General
Soldier Special Ops	General
Simultaneously Switching Outputs	General
Special Source Operations	General
State Services Organization	General
Ship Security Officer	General
SüdSüdOst	International
School Services Officer	Jobs
School Service Officer	Jobs
Senior Support Officer	Jobs
Society of Surgical Oncology	Medical
Secondary Significant Other	Messaging
Sortof Significant Other	Messaging
Special Security Office	Military and Defence
System Staff Officer	Military and Defence
Special Security Office(r)	Military and Defence
Spot Security Office	Military and Defence
Signal Security Office	Military and Defence
Sao Lourenco, Minas Gerais, Brazil	Regional
Safety Signification Operation	Space Science
Source Selection Official	Space Science
Space Shuttle Orbiter	Space Science
Subsystem Operation (in Spacelab)	Space Science
Support System for Oex	Space Science
System Security Officer	Space Science
Skate Society of Oregon	Sports