Steganography on WAV files

How to use

To compile, run

$ make

To clean, run

$ make clean

To run tests, run

$ make test

To embed

It supports hiding a plaintext file or a ciphertext file.

Plaintext file

The program receives the --embed / -e option and the following parameters:

• file to hide with --in / -i
• steganographic method with --steg / -s. Possible values: <LSB1|LSB4|LSBE>
• carrier file with --p / -p
• output wav file with --out / -o (this file will be the carrier that contains the file to hide)

For example:

$ ./stegowav --in samples/avatar.png --p samples/fun.wav --out samples/dup.wav --steg LSB4 --embed

or, what is the same:

$ ./stegowav -i samples/avatar.png -p samples/fun.wav -o samples/dup.wav -s LSB4 -e

Ciphertext file

The program receives the --embed / -e option and the following parameters:

• file to hide with --in / -i
• steganographic method with --steg / -s. Possible values: <LSB1|LSB4|LSBE>
• carrier file with --p / -p
• output wav file with --out / -o (this file will be the carrier that contains the file to hide)
• encryption password with --pass
• [OPTIONAL] encryption algorithm with -a. Possible values: <aes128|aes192|aes256|des> (default set to aes128)
• [OPTIONAL] ecnryption cipher mode with -m. Possible values: <ecb|cfb|ofb|cbc> (default set to cbc)

For example:

$ ./stegowav  --in samples/avatar.png --p samples/fun.wav --out samples/dup.wav --steg LSB4 --embed -a "aes192" -m cfb --pass "thePassword"

Use of quotes are optional

To extract

Plaintext file

The program receives the --extract / -x option and the following parameters:

• steganographic method with --steg / -s. Possible values: <LSB1|LSB4|LSBE>
• carrier file with --p / -p
• output file with --out / -o (No need for extension, it is added automatically)

For example:

$  ./stegowav --p samples/dup.wav --out out/output --steg LSB1 --extract

or, what is the same:

$  ./stegowav -p samples/dup.wav -o out/output -s LSB1 -x

Ciphertext file

The program receives the --extract / -x option and the following parameters:

• steganographic method with --steg / -s. Possible values: <LSB1|LSB4|LSBE>
• carrier file with --p / -p
• output file with --out / -o (No need for extension, it is added automatically)
• encryption password with --pass
• encryption algorithm with -a. Possible values: <aes128|aes192|aes256|des>
• ecnryption cipher mode with -m. Possible values: <ecb|cfb|ofb|cbc>

$ ./stegowav --p samples/dup.wav --out samples/output --steg LSB4 --extract -a "aes192" -m cfb --pass "thePassword"

Use of quotes are optional

Options

For more details, run:

$ ./stegowav --help

Important

• In order to compile it, you'll need libssl-dev packages (on Ubuntu run apt-get install libssl-dev)
• If you have problems running the test with some Linux distributions, add -fno-stack-protector flag on Makefile
• To check if the input file that was embed and the output file that was extracted are equal, you can run:

cmp --silent file1 file2 || echo "files are different"

To check WAV format specification, go to Microsoft WAVE specs

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Collaborators

• Chervonagura, Ioji
• Bond, Federico
• Gutierrez, Julian
• Itzcovich, Ivan