Which of the following authentication methods requires the user, service provider and an identity
provider to take part in the authentication process?
A.
RADIUS
B.
SAML
C.
Secure LDAP
D.
Kerberos
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B
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Remote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service. Because of the broad support and the ubiquitous nature of the RADIUS protocol, it is often used by ISPs and enterprises to manage access to the Internet or internal networks, wireless networks, and integrated e-mail services.
Security Assertion Markup Language (SAML) is an XML-based, open-standard data format for exchanging authentication and authorization data between parties, in particular, between an identity provider and a service provider. SAML ‘could’ be used here.
A common usage of LDAP is to provide a “single sign on” where one password for a user is shared between many services, such as applying a company login code to web pages (so that staff log in only once to company computers, and then are automatically logged into the company intranet). Secure LDAP is LDAP with SSL/TLS, and port 636 is used.
Kerberos makes use of encryption keys as tickets with time stamps to prove identity and grant access to resources.
After reading it, you know the correct answer is B.
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This is using something called Federated ID. Basically, if you log into the Washington Post, they ask for your Facebook account. The Washington post is called the Service provider and Facebook is the Identify Provider. This allows organizations to have a single sign on for diverse services. The core of Federated ID is SAML.
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en.wikipedia.org/wiki/SAML
Security Assertion Markup Language (SAML, pronounced sam-el) is an XML-based, open-standard data format for exchanging authentication and authorization data between parties, in particular, between an identity provider and a service provider
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