add requirements.txt and Dockerfile

Dockerfile

@@ -0,0 +1,16 @@
+FROM ubuntu:24.04
+
+RUN apt-get update && apt-get install -y \
+    python3 \
+    python3-pip \
+    python3-dev \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY . .
+RUN pip3 install -r requirements.txt
+RUN pip3 install pyinstaller
+
+RUN pyinstaller --onefile --windowed --icon=icon.png --name="Encrypto" encrypto.py

README.md

@@ -6,4 +6,5 @@ Encrypto is a lightweight application for encrypting and decrypting personal fil
 
 Simply select your file, encryption algorightm, encrypt or decrypt, enter your password of choice, and click the button.
 
-Have a nice day!
+## Installation
+

requirements.txt

@@ -0,0 +1,2 @@
+cryptography
+tk