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1. Nmap Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing.
written by: Daniel Robson • edited by: Aaron R. • updated: 2/13/2011 Whether it's to understand potential attack vectors or simply for the fun of it, learning the basics of hacking is something that a lot of people aspire to.
Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. Making a Faster Crytanalytical Time-Memory Trade-Off , Philippe Oechslin, Advances in Cryptology - CRYPTO 2003, 23rd Annual International Cryptology Conference , Santa Barbara, California, USA, August 17-21, 2003, Proceedings.
Detail from a photograph of World War I cryptographers trained by William and Elizebeth Friedman, Aurora, Illinois, early 1918.
What is Visual Cryptography Visual Cryptography is a special encryption technique to hide information in images in such a way that it can be decrypted by the human vision if the correct key image is used.
Alfred J. Menezes , Paul C. van Oorschot and Scott A. Vanstone CRC Press ISBN: 0-8493-8523-7 October 1996, 816 pages Fifth Printing (August 2001) The Handbook was reprinted (5th printing) in August 2001. The publisher made all the various minor changes and updates we submitted.