From 147bf294f15444a8288b4d84e06810f91a803708 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Aur=C3=A9lien=20DESBRI=C3=88RES?= <aurelien@hackers.camp>
Date: Sun, 6 Nov 2016 23:09:16 +0100
Subject: Encrypt / Decrypt and Stegano to a picture your secret from command
 line

---
 cryptosteg.sh | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 cryptosteg.sh

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
-- 
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