In the CSFB procedure, we found the authentication step is missing. The victim will not sense being attacked since no 4G or 2G fake base station is used and no cell re-selection. These attacks can randomly choose victims or target a given victim. The experiments proved the vulnerability really exists.
The primary goal of this effort was to introduce language changes that support writing cleaner, more robust code. If you use an IDE to develop your applications, it can help migrate existing code. The following list details the specific enhancements. Performing a switch statement on a string Prior to JDK 7, it was not possible to perform a switch on a String object.
To achieve this functionality, you had to use if-then-else statements. The ability to switch on a string is now supported and produces more efficient bytecode than an if-then-else statement. Writing code with less potential for leaks Before JDK 7, any resources that were opened in a try statement also called a try-catch-finally statement had to be manually closed, usually in a finally block.
As of JDK 7, the try-with-resources statement ensures that any resources declared in the try statement will be closed automatically.
If multiple resource variables are declared in the try statement, they are closed in the reverse order that they are declared.
Catching multiple exceptions Historically, catching multiple exceptions results in a catch block for each exception, with each block containing a variable with the type of that particular exception.
In many cases, these catch blocks contained identical code that referenced the specified exception variable. It was difficult to write a common method to handle this duplicated code because the exception variables had different types.
More precise re-throw of an exception Before JDK 7, re-throwing an exception in a catch block did not indicate the actual exceptions possible from the try block. Also, you could not change the type of exception thrown in the catch block without changing the method signature.
As of JDK 7, the semantics for catching and throwing exceptions has been refined. If you catch an exception of some type, and do not assign to the exception variable, the compiler will copy over the checked exception type that can be thrown from the try block. For example, the following code is legal in JDK 7: Diamond syntax for more concise new expressions Historically, you had to specify type arguments for a generic class in a new expression.
The resulting code is functionally identical, but more concise and easier to read. Class Loaders Multithreaded class loading Prior to JDK 7, certain types of custom class loaders were prone to deadlock. In JDK 7, the locking mechanism has been modified to avoid deadlock. Convenience class for generating random numbers from multiple threads The java.This book provides a set of design and implementation guidelines for writing secure programs.
Such programs include application programs used as viewers of remote data, web applications (including CGI scripts), network servers, and setuid/setgid programs.
Embedding an Applet in a Web Application. Your applet is complete. Now you need to make it available to the user. To do so, you create a web application, put the applet JAR on its classpath, and then add an applet tag to the web application's HTML file.
Stepping Up Our Game: Re-focusing the Security Community on Defense and Making Security Work for Everyone. Since the first Black Hat conference 20 years ago, the security community, industry and the world have changed to the point that it's time to re-examine whether we're .
Differences Between HTML and HTML5. The applet> tag is not supported in HTML5.
With the release of JDK 7, the Java Language continues to evolve. New language features make it possible to write tighter, more robust code.
An applet is a Java program that can be included a web page by using HTML tags. The applet tag is the simpler but older method, and has been superseded by the object tag. Applet - Add a Java applet by specifying the attributes of the applet tag.
archive="url" - Address or filename of the Java archive file .jar) containing the class files.