Program to embed and extract files from .bmp with different steganography strategies: LSB1, LSB4 and LSBI.

Authors

• Agustín Naso
• Gaston De Schant
• Brittany Lin

Requirements

• OpenSSL
• C compiler

Compilation

make all

Execution

Embed

./stegobmp -embed -in file -p carrier -out output_file -steg stego_algorithm [-a encryption_algorithm] [-m encryption_mode] [-pass password]

Extract

./stegobmp -extract -p input_file -out output_file -steg stego_algorithm [-a encryption_algorithm] [-m encryption_mode] [-pass password]

Arguments

• -in: file to hide
• -p: carrier file
• -out: output file
• -steg: steganography algorithm
  • LSB1
  • LSB4
  • LSBI
• -a: encryption algorithm
  • aes128
  • aes192
  • aes256
  • des
• -m: encryption mode
  • ecb
  • cfb
  • ofb
  • cbc
• -pass: encryption password