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Tip of the Day
Language: Security
Expertise: Beginner
May 2, 1999



Application Security Testing: An Integral Part of DevOps

Network Authentication

The new java.net.Authenticator class in JDK 1.2 seems to be the answer to generalized user-authentication. Why do getPasswordAuthentication and requestPasswordAuthentication both return PasswordAuthentication, but requestPasswordAuthentication requires a security check?

The getPasswordAuthentication method is a protected member function. It is overridden by a subclass to implement the actual user name and password retrieval. The requestPasswordAuthentication method is a static method that performs a SecurityManager check before calling getPasswordAuthentication() using the currently registered Authenticator. Applications should use requestPasswordAuthentication, whereas authentication implementors should subclass Authenticator and implement getPasswordAuthentication().

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