Cryptography pdf
GRE Computer Science Test Practice Book.pdf
Taken from Test-Taking Strategies: The questions in the practice test in this book illustrate the types of multiple-choice questions in the test. When you take the test, you will mark your answers on a separate machine-scorable answer sheet. Total testing time is two hours and fifty minutes; there are no separately timed sections. Following are some general test-taking strategies you may want to consider.
* Read the test directions carefully, and work as rapidly as you can without being careless. For each question, choose the best answer from the available options.
* All questions are of equal value; do not waste time pondering individual questions you find extremely difficult or unfamiliar.
* You may want to work through the test quite rapidly, first answering only the questions about which you feel confident, then going back and answering questions that require more thought, and concluding with the most difficult questions if there is time.
* If you decide to change an answer, make sure you completely erase it and fill in the oval corresponding to your desired answer.
* Questions for which you mark no answer or more than one answer are not counted in scoring.
* As a correction for haphazard guessing, onefourth of the number of questions you answer incorrectly is subtracted from the number of questions you answer correctly. It is improbable that mere guessing will improve your score significantly; it may even lower your score. If, however, you are not certain of the correct answer but have some knowledge of the question and are able to eliminate one or more of the answer choices, your chance of getting the right answer is improved, and it may be to your advantage to answer the question.
* Record all answers on your answer sheet. Answers recorded in your test book will not be counted.
* Do not wait until the last five minutes of a testing session to record answers on your answer sheet.
Cryptography Tutorial.pdf
The tutorial is done at a reasonably high level, there are about two dozen books which cover things like DES encryption done at the bit-flipping level so Gutmann hasn’t bothered going down to this level. Instead he cover encryption protocols, weaknesses, applications, and other crypto security-related information. Since the slides are accompanying material for a proper tutorial, there’s a lot of extra context which isn’t available just by reading the slides. Bear in mind that some of the claims and comments on the slides need to be taken in the context of the full tutorial.
The Script Kiddie Cookbook Abstract: Computer Security for Everyday Users.pdf
Contents:
Unit I: Legal Stuff [ Chapter 2: Legal system basics ~ Chapter 3: Cases of Interest ~ Chapter 4: Acceptable Use Policies ]
Unit 2: Hacking History and Foundational Stuff [ Chapter 5: History and Psychology of Hacking ~ Chapter 6: Networking Frameworks ~ Chapter 7: Logic Problem Fundamentals/Cryptography Fundamentals ~ Chapter 8: The "Anatomy of a Hack" ]
Unit 3: Tools of the Trade [ Chapter 9: Downloading stuff from the web ~ Chapter 10: DOS ~ Chapter 11: Password Protection ~ Chapter 12: Protocol Inspectors ~ Chapter 13: Port Scanners ~ Chapter 14: Having fun on the Internet or not ~ Chapter 15: E-mail and SPAM ~ Chapter 16: H4xor 5p34k ~ Chapter 17: How to stop those frigging pop-up ads ~ Chapter 18: Knoppix STD: an introduction ]
Unit 4: Putting it all together [ Chapter 19: Case Studies in Hacking ~ Chapter 20: Prologue ]
Computer Networks.pdf
These pdf files are good starting points for those who want to learn computer networking, not only LAN, WAN and MAN, but you can also learn about Layered Network, OSI, Packets, Satellite Networks and more!
Communication Network.pdf
Ten modules consists of 40 lessons about telecommunication and network, all in pdf files. These are another course material from ECE , IIT Kharagpur (India I supposed). These free materials will teach you to learn network, switching, signaling from basic to advanced.

