Book Image

Mastering Assembly Programming

By : Alexey Lyashko
3 (1)
Book Image

Mastering Assembly Programming

3 (1)
By: Alexey Lyashko

Overview of this book

The Assembly language is the lowest level human readable programming language on any platform. Knowing the way things are on the Assembly level will help developers design their code in a much more elegant and efficient way. It may be produced by compiling source code from a high-level programming language (such as C/C++) but can also be written from scratch. Assembly code can be converted to machine code using an assembler. The first section of the book starts with setting up the development environment on Windows and Linux, mentioning most common toolchains. The reader is led through the basic structure of CPU and memory, and is presented the most important Assembly instructions through examples for both Windows and Linux, 32 and 64 bits. Then the reader would understand how high level languages are translated into Assembly and then compiled into object code. Finally we will cover patching existing code, either legacy code without sources or a running code in same or remote process.
Table of Contents (12 chapters)
Free Chapter
1
Intel Architecture

Protecting the code

There are numerous books, articles, and blog posts on how to better protect your code. Some of them are even useful and practical; however, most of them are dedicated to certain third-party tools or combinations thereof. We are not going to review any of those, neither books nor tools. Instead, we are about to see what we are able to do ourselves with the tools we already have.

First of all, we have to assimilate the fact that there is no such thing as 100% protection for our code. No matter what we do, the more valuable our code is, the higher is the possibility that it will be reverse engineered. We may use packers, protectors, and whatever other tools we may come up with, but at the end, they are all well known and will be bypassed one way or another. Thus, the final frontier is the code itself. To put it correctly, it is the way the code appears to a potential...