Nikolai Weibull wrote:
Make an easy way to encrypt a secret within a line.
[Really complex scheme to implement this.]
Why is it not enough to simply implement a function that
encrypts/decrypts a range of text, much like g? ROT13s a
range of text?
Because the scheme needs to be simple to use. Once you have
that, you have the danger that you will accidentally encrypt or
decrypt twice ... then you can lose data. You need some safety
checks from a carefully-written program ... although I suppose
you could incorporate all that in your hypothetical function.
John
