Now this sounds like a really easy way to guarantee that you have downloaded the correct file from a website, but how many people actually run a local hash and check their checksums? I know I don't do it (even though I know I should), and I am willing to bet a lot of other people don't do this either. I looked online for solutions and there seems to be an abundance of utility tools to do this, even Windows has some built in commands.
However, I download things on multiple computers that run multiple OSes and none of these utilities seem to be able to run on all of my devices - and I like programs which run the same on everything. So, this is why I've decided to start my crypto-tool project - a cross-platform crypto tool. It is built in Java (which runs on most all devices) and will allow me to have the same process of checking checksums on every device I use.
The program currently comes with a command line interface which allows the user to generate checksums for input strings and files. It currently supports the following hash algorithms:
S:\Workspaces\Github - Java\crypto-tool\latest-build>java -jar crypto-tool-cli-0.0.4-jar-with-dependencies.jar hash -ha MD5 -f input.txt -s "Command line string to hash." -s "And another string." MD5 hash of [Command line string to hash.] is: 4354cb305345dc2582f1aefef124df47 MD5 hash of [And another string.] is: a3482fe6387ebb8cc20ea5aa713c3b8a MD5 hash of file [input.txt] is: 632e60b155c9a24d3cf47f072532b440
I feel like this is a good start to the project, however I have some plans to enhance this utility:
- Add checksum verification
- Add encryption/decryption of files/strings
- Add a graphical user interface in addition to the command line interface