CTF Cheat Sheet + Writeups / Files for some of the Cyber CTFs that I've done
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Updated
May 9, 2024 - C
Steganography is the practice of concealing a message within another message or a physical object that is not secret. In computing/electronic contexts, a computer file, message, image, or video is concealed within another file, message, image, or video.
CTF Cheat Sheet + Writeups / Files for some of the Cyber CTFs that I've done
A (quite) simple steganography algorithm to hide shellcodes within bitmap image.
Image steganography in C using LSB (1, 2, 4 bits)
👾 𝘁𝗼𝗼𝗹𝘀 𝗳𝗼𝗿 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗿𝗲𝘀𝗲𝗮𝗿𝗰𝗵𝗲𝗿𝘀: 𝗽𝗲𝗻𝘁𝗲𝘀𝘁𝗶𝗻𝗴, 𝗖𝗧𝗙𝘀 & 𝘄𝗮𝗿𝗴𝗮𝗺𝗲𝘀
Small C project aiming to hide a message in a .png image, and to recover it.
🖼 imgify - Convert any file to PNG and back.
🕵️ Hide binary data inside x86 ELF files
Steganography hides communication by embedding data within other data, often using digital images due to their prevalence online. Various techniques exist, each with strengths and weaknesses, catering to different needs like absolute invisibility or hiding large messages.
Steganography tool for encrypting and hiding files inside JPEG, PNG and WebP images
Steganography is the art and science of concealing information within other data to ensure its confidentiality, In this project, you will implement a basic steganography system using the C programming language. The primary goal is to embed a secret message within an image without visibly altering the image.
Steganography is the art and science of concealing information within other data to ensure its confidentiality, In this project, you will implement a basic steganography system using the C programming language. The primary goal is to embed a secret message within an image without visibly altering the image.
Hide a file inside an RGB bitmap or PNG image
A simple cryptographic program relying on a monoalphabetic substitution cipher with steganography support for PNG files.
Steganographic FUSE filesystem
Some network covert channel projects of my own research, containing a protocol channel tool (protocol switching covert channel, PCT/PSCC), a protocol hopping covert channel (PHCC) tool, the protocol channel-aware active warden (PCAW) and ... VSTT.