Single Sign-On (SSO)

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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.1) What's the Difference b/w SSO (Single Sign-On) & LDAP?. JumpCloud. 2019-05-14. Retrieved 2020-10-27 2) SSO and LDAP Authentication. Authenticationworld.com. Archived from the original on 2014-05-23. Retrieved 2014-05-23.

Source: https://en.wikipedia.org/wiki/Single_sign-on