rhian-cs / puc-2021-2-java-hash-calculator

Java Application that calculates file hashes

Hash Calculator

This project was built for the Security and Data Criptography subject in my Computer Science course.

It was written in Java and is composed of a GUI to calculate MD5, SHA-1 and SHA-256 hashes of multiple files.

You can download the latest release here.

Screenshots

In the main window you can select the directory that you wish to calculate the files' hash:

After pressing on the Calculate hash! button, a file will be generated and this message will show up:

The generated file contains a TSV report (table separated), which will look like this:

File	MD5 Hash
/tmp/test
/tmp/test/comandosADBUniversais.pdf	2762c703d6cf917691e6264c2dee0033

Building the Application

No IDE was used to create this project, I've only used VS Code and built everything manually with javac.

Dependencies (check if the following commands are available):

• java
• javac
• jar

Building on Linux:

You can build the application with the shell script:

$ ./build.sh

You can then run the application with:

$ java -jar build/HashCalculator.jar

Or double-click it through the GUI.

Building on Windows

You can try to convert the build.sh script into a batch script, or run the following commands on cmd:

Warning: This was NOT YET TESTED.

javac -d build Main.java gui\GlobalState.java gui\components\FileSelector.java gui\DefaultWindow.java gui\MainPanel.java gui\workers\DirectoryHashWorker.java gui\MainWindow.java gui\DefaultPanel.java hash_calculators\FileHashCalculator.java

cd build

jar cvfm HashCalculator.jar ..\META-INF\MANIFEST.MF Main.class Main$1.class gui\MainPanel.class gui\components\FileSelector.class gui\GlobalState.class gui\workers\DirectoryHashWorker.class gui\MainWindow.class gui\DefaultPanel.class gui\DefaultWindow.class hash_calculators\FileHashCalculator.class

cd ..

Then run the application with:

java -jar build\HashCalculator.jar