An encryption/decryption programm that can encrypt and decrypt .txt files containing any of the following chars: "ABCDEFGHIJKLMNOPQRSTUVWXYZÄÜÖabcdefghijklmnopqrstuvwxyzäüöß0123456789,.!?"§$%&/()=+-*\_#~<>| "
The program uses the caesar cipher encryption method with a key. The user has the option to use an additional seed which randomises the charset ("alphabet") for additional security.