Spastic
07-08-2008, 1:02 PM
To anyone who can crack their encryption. (http://www.permanentprivacy.com/challenge.htm) Although you have to buy a license, which costs about 40 bucks (US). From first glance It looks like it is pretty secure, here is a quote taken from them saying even a 5 letter word is impossible to cipher.
Suppose that the plain text message is simply one 5-letter word. At first glance, you would think that this must be easy to break. But there are, let us say, about 100 printable characters on a computer keyboard, so there are some 100×100x100×100x100 ways of producing a 5-letter word.
This means that there are about 10 billion different possible 5-letter words, including every 5-letter word in every language plus every permutation of numerals and gibberish.
A brute-force attack on PP’s cyphertext would produce ALL of them (plus every 4-, 3- and 2-letter word) and there is no way of knowing which word is the original plain text unless you have the keys.
I doubt this will be cracked, and am actually looking forward to this method of encryption for the future. Though who knows, if someone does crack it, it will definitely pay off for the initial investment.
Suppose that the plain text message is simply one 5-letter word. At first glance, you would think that this must be easy to break. But there are, let us say, about 100 printable characters on a computer keyboard, so there are some 100×100x100×100x100 ways of producing a 5-letter word.
This means that there are about 10 billion different possible 5-letter words, including every 5-letter word in every language plus every permutation of numerals and gibberish.
A brute-force attack on PP’s cyphertext would produce ALL of them (plus every 4-, 3- and 2-letter word) and there is no way of knowing which word is the original plain text unless you have the keys.
I doubt this will be cracked, and am actually looking forward to this method of encryption for the future. Though who knows, if someone does crack it, it will definitely pay off for the initial investment.