By Theodore Parker
It is a unfastened e-book approximately laptop, community, technical, actual, info and cryptographic safety. you could obtain it as a pdf dossier or learn it online.
I wrote this paper to attempt and view the common difficulties in laptop safeguard and similar components, and try to extract from them rules for protecting structures. To this finish i try to synthesize a number of fields of data, together with laptop safeguard, community protection, cryptology, and intelligence. I additionally try to extract the rules and implicit assumptions at the back of cryptography and the safety of categorized details, as acquired via reverse-engineering (that is, proficient hypothesis according to present laws and stuff I learn in books), the place they're proper to technological security.
Table of Contents
Economics of Security
identity and Authentication
Authorization – entry Control
safe procedure Administration
software program Security
Human components and Usability
belief and group of workers Security
Randomness and Unpredictability
info and Intelligence
clash and Combat
Editorials, Predictions, Polemics, and private evaluations
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Additional info for Security Concepts
Aspx). o r g /w ik i/K n o w _ t h y s e lf) When discussing security, it’s often useful to analyze the part which may interact with a particular adversary (or set of adversaries). For example, let’s assume you are only worried about remote adversaries. If your system or network is only connected to outside world via the Internet, then the attack surface is the parts of your system that interact with things on the Internet, or the parts o f your system which accept input from the Internet. A firewall, then, limits the attack surface to a smaller portion o f your systems by filtering some o f your network traffic.
The adversary could naturally sit between you and the remote system. 4 P h y sica l L ayer M I T M Issues Tapping the wire (or listening to wireless) There is something used by the military called an identification friend or foe (IFF) device. You can read about it on the Wikipedia page (h t t p : / / e n . o r g /w ik i/I d e n t ific a t io n _ fr ie n d _ o r _ fo e ). W hat is interesting is that it can be defeated using a M ITM attack; the challenger sends his chal lenge towards the adversary, and the adversary relays the challenge to a system friendly to the challenger, and relays the response back.
You can read about it on the Wikipedia page (h t t p : / / e n . o r g /w ik i/I d e n t ific a t io n _ fr ie n d _ o r _ fo e ). W hat is interesting is that it can be defeated using a M ITM attack; the challenger sends his chal lenge towards the adversary, and the adversary relays the challenge to a system friendly to the challenger, and relays the response back. What is interesting here is that, in this case, the IFF device can enforce a reasonable time limit, so that a M ITM attack fails due to speed-of-light constraints.