mchlmmc / x86-Assembly-AES256-Implementation

A bare-metal implementation of the common AES256 algorithm

AES256 Implementation written entirely in Assembly

FASM-Enabled Intel x86 Assembly code, intended for usage in real-mode operating systems.

This code has only been tested on VirtualBox, and the actual implementation of the algorithm has not been extensively tested itself. USE AT YOUR OWN DISCRETION!

Compiling

I assembled the implementation.asm with Flat Assembler (https://flatassembler.net/ ) on Windows 10, with no Makefile. The programs that I used were:

• flat assembler 1.71.39
• HxD 1.7.7.0
• VirtualBox 5.2.2

Instead of writing a linker script, for some reason I manually copied the assembled version of implementation.asm into the first sector of a file I created called floppy.img with HxD upon each build. Then, I ran it in VirtualBox to see the result. No debugging tools were used.

While this code should work in Protected and Long Mode, I have not tested it under such running conditions yet.