I hear you.
Encryption is simple in
concept (only the good guys can read your message), but devilish in the
details. Here's a simple set of worked examples which illustrate
some of the ways you can use JavaScrypt to protect your privacy.
These examples open an auxiliary browser window in which various JavaScrypt
components are demonstrated. Please use the buttons in
exclusively; pressing the buttons in the popped-up window may confuse the
sequencing of the example.
Crypto-folk usually couch their examples in terms of messages
sent between the virtuous "Alice" and "Bob", who wish to avoid
them being intercepted and read by the nefarious "Eve". I'll
follow that convention here, so let's join Alice and Bob as
they hatch a plot.
This set of worked examples only scratches the surface of what
you can do with JavaScrypt which, in itself, is but a simple
and limited implementation of a cryptographic system. To better understand
JavaScrypt, please visit the pages below, all of which contain
embedded documentation which explains the options available to
you.
If you wish to dive deeper into the murky waters of cryptography,
there are a multitude of references you can consult. An excellent
starting point, containing a bibliography which cites
essential works for further exploration, is Ferguson and Schneier's
Practical Cryptography.