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GIAC GSNA Exam - Topic 5 Question 70 Discussion
Topic #: 5
You work as a Network Administrator for Net Perfect Inc. The company has a Windows-based network. You have been assigned the task to
design the authentication system for the remote users of the company. For security purposes, you want to issue security tokens to the
remote users. The token should work on the one-time password principle and so once used, the next password gets generated. Which of the
following security tokens should you issue to accomplish the task?
An event-based token, by its nature, has a long life span. They work on the one-time password principle and so once used, the next
password is generated. Often the user has a button to press to receive this new code via either a token or via an SMS message. All
CRYPTOCard's tokens are event-based rather than time-based.
Answer C is incorrect. Bluetooth tokens are often combined with a USB token, and hence work in both a connected and a disconnected
state. Bluetooth authentication works when closer than 32 feet (10 meters). If the Bluetooth is not available, the token must be inserted into
a USB input device to function.
Answer A is incorrect. Virtual tokens are a new concept in multi-factor authentication first introduced in 2005 by security company
Sestus. Virtual tokens work by sharing the token generation process between the Internet website and the user's computer and have the
advantage of not requiring the distribution of additional hardware or software. In addition, since the user's device is communicating directly
with the authenticating website, the solution is resistant to man-in-the-middle attacks and similar forms of online fraud.
Answer D is incorrect. Single sign-on software tokens are used by the multiple, related, but independent software systems. Some
types of single sign-on (SSO) solutions, like enterprise single sign-on, use this token to store software that allows for seamless authentication
and password filling. As the passwords are stored on the token, users need not remember their passwords and therefore can select more
secure passwords, or have more secure passwords assigned.
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