From 8923d45ac511f47674da65cc2badfb6a9aee0a61 Mon Sep 17 00:00:00 2001
From: Ubuntu <wtfawk@mail.meer-web.nl>
Date: Fri, 2 Feb 2024 15:49:55 +0100
Subject: [PATCH] Initial release

---
 crypter.sh | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100755 crypter.sh

diff --git a/crypter.sh b/crypter.sh
new file mode 100755
index 0000000..b720532
--- /dev/null
+++ b/crypter.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+
+# Check method
+case "$1" in 
+	"encrypt")
+		METHOD='encrypt'
+		;;
+	"decrypt")
+		METHOD='decrypt'
+		;;
+	*) 
+		echo "Usage: ./crypter.sh [encrypt/decrypt] [inputfile] [outputfile]";
+		exit 1
+		;;
+esac
+
+# Check for input file
+if [ -n "$2" ]
+then
+	INPUT=$2
+	if [ ! -e "$INPUT" ];
+	then
+		echo "Input file does not exist!"
+		exit 2
+	fi
+else
+	echo "Please submit a input file"
+	exit 1
+fi
+
+# Check for output file
+if [ -n "$3" ]
+then
+	OUTPUT=$3
+	if [ -e "$OUTPUT" ];
+	then
+		echo "Output file already exist!"
+		exit 1
+	fi
+else
+	echo "Please submit a output file"
+	exit 1
+fi
+
+# Ask for password
+echo -en "Encryption password: "
+read -s PASSWORD; echo ""
+
+if [ "$PASSWORD" == '' ]
+then
+	echo "Password not set!"
+	exit 2
+fi
+
+if [ "$METHOD" == 'encrypt' ]
+then
+	echo -en "Confirm password: "
+	read -s PASSWORD_CONFIRM
+	echo ""
+	if [ "$PASSWORD" != "$PASSWORD_CONFIRM" ]
+	then
+		echo "Passwords are not matching!"
+		exit 2
+	fi
+fi
+
+case "$METHOD" in 
+	"encrypt")
+		echo "Encrypting";
+		openssl enc -des-ede3-cbc -pbkdf2 -salt -in ${INPUT} -out ${OUTPUT}.temp -k ${PASSWORD}
+		base64 ${OUTPUT}.temp > ${OUTPUT}
+		rm -f ${OUTPUT}.temp
+		echo "Done!"
+		exit 0
+		;;
+	"decrypt")
+		echo "Decrypting";
+		base64 -d ${INPUT} > ${INPUT}.temp
+		openssl enc -d -des-ede3-cbc -pbkdf2 -in ${INPUT}.temp -out ${OUTPUT} -k ${PASSWORD}
+		rm -f ${INPUT}.temp
+		echo "Done!"
+		exit 0
+		;;
+esac
+exit 3