... addresses amateurs, or in other words, everyone who likes puzzles. Level I requires no programming skills. Tools for a frequency analysis
of symbols, occurring in a given encrypted text, and for similar
purposes are provided in animated form on the competition home page.
An user registration is not mandatory for Level I, but only registered users can use the save and ranking functions.
The use of this crypto-system dates back to the time of the roman empire and can still be used to demonstrate some really basic functions of cryptography.
One-Time-Pads are one of the few proven-secure cryptosystems, but only if they´re used in the correct manner. Incorrect use like in this example seriously weakens the systems security.