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AES-256 key generator and checksum calculator

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KeyUtil

This utility allows the secure generation of 256-bit AES keys and the checksum calculation according to the Austrian Federal Ministry of Finance.

Requirements

  • Java Runtime 8 or higher
  • Tested on JRE 1.8.0.121

Installation (Windows)

  1. Extract the ZIP package to a folder
  2. Launch KeyUtil.exe

Installation (others)

  1. Make sure java is installed and in your $PATH
  2. Extract the ZIP package to a folder
  3. Execute java -jar KeyUtil.jar

Usage

Click Generate to generate a base64-encoded 256-bit key or import an existing one by pasting it into the key input.

Then, click Calculate to calculate the checksum.

Testing

The JUnit test suite can be found in the test folder.

License

This utility is licensed under the Apache license 2.0.