On 10/21/2013 8:03 AM, Bapuji Nakka wrote: > I am using AES 256 bit encryption. Is this secure from bruit force attack? > Because i read in articles, above encryption can be cracked easlily > in the adobe 9. This question is wrong. It should read: "Is password encryption secure?" The answer is "No!" A follow-up question would be: "Then how do I securely encrypt a PDF?" The answer is: "Use certificate encryption?" A follow-up question to that question could be: "Is certificate encryption ALWAYS secure?" The answer is: that depends on the encryption algorithm and the length of the key that is used.
------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135031&iu=/4140/ostg.clktrk _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
