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| -rw-r--r-- | cryptosteg.sh | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/cryptosteg.sh b/cryptosteg.sh new file mode 100644 index 0000000..886259e --- /dev/null +++ b/cryptosteg.sh @@ -0,0 +1,107 @@ +#!/bin/bash +# CryptoSteg +# Encrypt files and steg them to pictures + +# Variables +ENCRYPT=$"gpg -c" +DECRYPT=$"gpg" +NOW=$(date +"%m_%d_%Y") + +# Clear the terminal +tput clear +# Prevent pinentry trouble with pinentry display +echo pinentry-program /usr/bin/pinentry-curses >> ~/.gnupg/gpg-agent.conf +echo RELOADAGENT | gpg-connect-agent + +# Welcome +printf "\033[1;32mWelcome to CryptoSteg\n Stegagnograph and Encrypt data\n Made Simple\033[0m%s\n" + +# Request the user to install or not the needed software +while true; do + read -p "Do you need to install steghide and gpg to run CryptoSteg? Y/n " yn + case $yn in + [Yy]* ) # Install needed software for the operating system + command_exists () { + type "$1" &> /dev/null ; + } + + # For Debian / Ubuntu / Trisquel / gNewSense and derivatives + if command_exists apt-get ; then + sudo apt-get install steghid gnupg ; + fi + + # For Archlinux / Parabola and derivatives + if command_exists pacman ; then + sudo pacman -Sy steghide gnupg ; + fi + + # For Android / Cyanogen / Replicant and derivatives + if command_exists apt ; then + sudo apt install steghide gnupg ; + fi + + # For Fedora and derivatives + if command_exists dnf ; then + sudo dnf install -y steghide gnupg ; + fi + + # For RedHat / CentOS and derivatives + if command_exists yum ; then + sudo yum install -y steghide gnupg ; + fi + + if command_exit pkg ; then + sudo pkg install -y steghide gnupg ; + fi + break;; + [Nn]* ) break ;; + * ) echo "Please answer Yes or no. ";; + esac +done + +# Request the user to create an encrypted key +while true; do + read -p "Do you need to create an encrypted key? Y/n " yn + case $yn in + [Yy]* ) # creating a key + printf "/!\ If you forget your passphrase, the key cannot be used\n and any data encrypted using that key will be lost.\n" + gpg2 --full-gen-key + break;; + [Nn]* ) break;; + * ) echo "Please answer Yes or no.";; + esac +done + + +# Encrypt or Decrypt? +while true; do + read -p "Do you which to encrypt or decrypt data? Encrypt/Decrypt " ed + case $ed in + [Ee]* ) # Encrypt - Request the user where and which file he wish to encrypt + printf "Which file do you wish to encrypt?\n" + printf "Please provide its place and name like /home/user/file\n" + read FILE + + # Encrypt + $ENCRYPT $FILE + # Request the user which picture he want to use + printf "Which picture do you wish to use?\n" + printf "Please provide its place and name like /home/user/picture\n" + read PICTURE + # Grab and Steg the file + steghide embed -cf $PICTURE -ef $FILE.gpg + printf "Well done, $PICTURE now contain your secret safe\n" + break;; + [Dd]* ) # Decrypt - Request the user where and which file he wish to decrypt + printf "Which picture do you want to extract?\n" + printf "Please provide its place and name like /home/user/picture\n" + read PICTURE + # Encrypt + steghide extract -sf $PICTURE + $DECRYPT *.gpg + printf "Well done, your file is now human readable\n" + break;; + * ) echo "Please answer Encrypt or Decrypt.";; + esac +done +exit |