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All The Cheat Sheets That A Web Developer Needs. How to Design Programs. Programming, Motherfucker - Do you speak it? Philosophy. Philosophy. Top 15 Open Source/Free Security/Hacking Tools. A Quick, Painless Tutorial on the Python Language. Norman Matloff University of California, Davis June 17, 2008 ©2003-2008, N.

A Quick, Painless Tutorial on the Python Language

Matloff Contents What Are Scripting Languages? Languages like C and C++ allow a programmer to write code at a very detailed level which has good execution speed (especially in the case of C). The term scripting language has never been formally defined, but here are the typical characteristics: Used often for system administration, Web programming, text processing, etc. Why Python? The first really popular scripting language was Perl. Invent Your Own Computer Games with Python.

Chapter 1.

Invent Your Own Computer Games with Python

Codecademy Labs. The Best Hacking Tutorial Sites - Learn Legal Hacking. Written by: Daniel Robson•edited by: Aaron R.

The Best Hacking Tutorial Sites - Learn Legal Hacking

•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. Lecture Slides and Video Archives. "ON TRIAL: LEE HARVEY OSWALD" (PART 21)(WITNESS: DR. CYRIL WECHT) About Cyril H. Wecht, Forensic Pathologist, Attorney, Medical-Legal Consultant. Crime Scene Investigation Articles. Visible Proofs: Forensic Views of the Body: Galleries: Technologies. How To Set Up SSH Encrypted MySQL Replication. CrypTool - Educational Tool for Cryptography and Cryptanalysis. How to Bypass Most Firewall Restrictions and Access the Internet Privately. Ciphers By Ritter: Cryptography and Technology. Ophcrack.

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. Lecture Notes in Computer Science 2729 Springer 2003, ISBN 3-540-40674-3 This paper describes the use of Rainbow tables and compares their performance with the best variants that have been used before.

Rainbow tables explained, Ph. Codefetch{ One-Time Pad Generator. This page, which requires that your browser support JavaScript (see Why JavaScript below), generates one-time pads or password lists in a variety of forms.

One-Time Pad Generator

It is based a high-quality pseudorandom sequence generator, which can be seeded either from the current date and time, or from a seed you provide. Fill in the form below to select the format of the pad and press “Generate” to create the pad in the text box. You can then copy and paste the generated pad into another window to use as you wish. Each of the labels on the request form is linked to a description of that parameter.

Details Each of the fields in the one-time pad request form is described below. Output. Projects. CrypTool - Educational Tool for Cryptography and Cryptanalysis. Logical Paradoxes. How to Make Anything Signify Anything. Detail from a photograph of World War I cryptographers trained by William and Elizebeth Friedman, Aurora, Illinois, early 1918.

How to Make Anything Signify Anything

By facing either forward or sideways, the soldiers formed a coded phrase utilizing Francis Bacon’s biliteral cipher. The intended message was the Baconian motto “Knowledge is power,” but there were insufficient people to complete the r (and the w was compromised by one soldier looking the wrong way).Included as a pull-out poster in issue 40, Knowledge Is Powe is also available for purchase in an unfolded version suitable for framing. To see a large version of the full photograph, go here. Decoded version is here.

Courtesy George C. For much of his long and largely secret career, Colonel William F. At first glance, the photo looks like a standard-issue keepsake of the kind owned by anyone who has served in the military. The crucial point in Bacon’s system is that the a’s and b’s in the ciphered text are not represented by those actual letters. Cryptography. Visual Cryptography. 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.

Visual Cryptography

The technique was proposed by Naor and Shamir in 1994. Visual Cryptography uses two transparent images. One image contains random pixels and the other image contains the secret information. It is impossible to retrieve the secret information from one of the images. When the random image contains truely random pixels it can be seen as a one-time pad system and will offer unbreakable encryption. How Visual Cryptography works Each pixel of the images is divided into smaller blocks. Handbook of Applied Cryptography. Book Publishers. - reverse engineer md5 hashes - powered by An Overview of Cryptography. 1.

An Overview of Cryptography

INTRODUCTION Does increased security provide comfort to paranoid people? Or does security provide some very basic protections that we are naive to believe that we don't need? During this time when the Internet provides essential communication between tens of millions of people and is being increasingly used as a tool for commerce, security becomes a tremendously important issue to deal with.

There are many aspects to security and many applications, ranging from secure commerce and payments to private communications and protecting passwords. Encryption. Simple Complexity — Making Simple Sense From Complex Data.