Sap Single Sign-on 3.0 [VERIFIED] Download

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.

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.

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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.[4] 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.

The term reduced sign-on (RSO) has been used by some to reflect the fact that single sign-on is impractical in addressing the need for different levels of secure access in the enterprise, and as such more than one authentication server may be necessary.[7]

As single sign-on provides access to many resources once the user is initially authenticated ("keys to the castle"), it increases the negative impact in case the credentials are available to other people and misused. Therefore, single sign-on requires an increased focus on the protection of the user credentials, and should ideally be combined with strong authentication methods like smart cards and one-time password tokens.[7]

Single sign-on also increases dependence on highly-available authentication systems; a loss of their availability can result in denial of access to all systems unified under the SSO. SSO can be configured with session failover capabilities in order to maintain the system operation.[8] Nonetheless, the risk of system failure may make single sign-on undesirable for systems to which access must be guaranteed at all times, such as security or plant-floor systems.

Furthermore, the use of single-sign-on techniques utilizing social networking services such as Facebook may render third party websites unusable within libraries, schools, or workplaces that block social media sites for productivity reasons. It can also cause difficulties in countries with active censorship regimes, such as China and its "Golden Shield Project", where the third party website may not be actively censored, but is effectively blocked if a user's social login is blocked.[9][10]

In May 2014, a vulnerability named Covert Redirect was disclosed.[13] It was first reported "Covert Redirect Vulnerability Related to OAuth 2.0 and OpenID" by its discoverer Wang Jing, a Mathematical PhD student from Nanyang Technological University, Singapore.[14][15][16] In fact, almost all[weasel words] Single sign-on protocols are affected. Covert Redirect takes advantage of third-party clients susceptible to an XSS or Open Redirect.[17]

Due to how single sign-on works, by sending a request to the logged-in website to get a SSO token and sending a request with the token to the logged-out website, the token cannot be protected with the HttpOnly cookie flag and thus can be stolen by an attacker if there is an XSS vulnerability on the logged-out website, in order to do session hijacking. Another security issue is that if the session used for SSO is stolen (which can be protected with the HttpOnly cookie flag unlike the SSO token), the attacker can access all the websites that are using the SSO system.[20]

As originally implemented in Kerberos and SAML, single sign-on did not give users any choices about releasing their personal information to each new resource that the user visited. This worked well enough within a single enterprise, like MIT where Kerberos was invented, or major corporations where all of the resources were internal sites. However, as federated services like Active Directory Federation Services proliferated, the user's private information was sent out to affiliated sites not under control of the enterprise that collected the data from the user. Since privacy regulations are now tightening with legislation like the GDPR, the newer methods like OpenID Connect have started to become more attractive; for example MIT, the originator of Kerberos, now supports OpenID Connect.[21]

Single sign-on in theory can work without revealing identifying information such as email addresses to the relying party (credential consumer), but many credential providers do not allow users to configure what information is passed on to the credential consumer. As of 2019, Google and Facebook sign-in do not require users to share email addresses with the credential consumer. "Sign in with Apple" introduced in iOS 13 allows a user to request a unique relay email address each time the user signs up for a new service, thus reducing the likelihood of account linking by the credential consumer.[22]

Initial sign-on prompts the user for the smart card. Additional software applications also use the smart card, without prompting the user to re-enter credentials. Smart-card-based single sign-on can either use certificates or passwords stored on the smart card.

A newer variation of single-sign-on authentication has been developed using mobile devices as access credentials. Users' mobile devices can be used to automatically log them onto multiple systems, such as building-access-control systems and computer systems, through the use of authentication methods which include OpenID Connect and SAML,[24] in conjunction with an X.509 ITU-T cryptography certificate used to identify the mobile device to an access server.

Single sign-on (SSO) is a session and user authentication service that permits a user to use one set of login credentials -- for example, a username and password -- to access multiple applications. SSO can be used by enterprises, small and midsize organizations, and individuals to ease the management of multiple credentials.

Single sign-on is a federated identity management arrangement. The use of such a system is sometimes called identity federation. Open Authorization (OAuth) is the framework that enables an end user's account information to be used by third-party services, such as Facebook, without exposing the user's password.

Although single sign-on is a convenience to users, it presents risks to enterprise security. An attacker who gains control over a user's SSO credentials is granted access to every application the user has rights to, increasing the amount of potential damage.

Google, LinkedIn, Apple, Twitter and Facebook offer popular SSO services that enable end users to log in to third-party applications with their social media authentication credentials. Although social single sign-on is a convenience to users, it can present security risks because it creates a single point of failure that can be exploited by attackers.

Enterprise single sign-on (eSSO) software and services are password managers with client and server components that log a user on to target applications by replaying user credentials. These credentials are almost always a username and password. Target applications do not need to be modified to work with the eSSO system.

There are many reasons why SSO can improve security. A single sign-on solution can simplify username and password management for both users and administrators. Users no longer have to keep track of different sets of credentials and can simply remember a single more complex password. SSO often enables users to just get access to their applications much faster.

Single sign-on (SSO) is a user authentication tool that enables users to securely access multiple applications and services using just one set of credentials. Whether your workday relies on Slack, Asana, Google Workspace, or Zoom, SSO provides you with a pop-up widget or login page with just one password that gives you access to every integrated app. Instead of twelve passwords in a day, SSO securely ensures you only need one.

Single sign-on puts an end to the days of remembering and entering multiple passwords, and it eliminates the frustration of having to reset forgotten passwords. Users can also access a range of platforms and apps without having to log in each time.

And as IT has continued to evolve by moving to the cloud, dispersing across multiple devices, and facing more sophisticated cyber threats, these traditional identity management tools are struggling to keep pace. IT teams now need a solution that provides users with quick, secure single sign-on access to any application or service.

This article provides you with information about the single sign-on (SSO) options that are available to you. It also outlines an introduction to planning a single sign-on deployment when using Microsoft Entra ID. Single sign-on is an authentication method that allows users to sign in using one set of credentials to multiple independent software systems. Using SSO means a user doesn't have to sign in to every application they use. With SSO, users can access all needed applications without being required to authenticate using different credentials. For a brief introduction, see Microsoft Entra single sign-on.

With federated single sign-on, Microsoft Entra authenticates the user to the application by using their Microsoft Entra account. This method is supported for SAML 2.0, WS-Federation, or OpenID Connect applications. Federated SSO is the richest mode of SSO. Use federated SSO with Microsoft Entra ID when an application supports it, instead of password-based SSO and Active Directory Federation Services (AD FS).

There are some scenarios where the SSO option isn't present for an enterprise application. If the application was registered using App registrations in the portal, then the single sign-on capability is configured to use OpenID Connect and OAuth by default. In this case, the single sign-on option doesn't appear in the navigation under enterprise applications. e24fc04721