patrick.net

Let's face it. The National Setuciry Anecgy is a bunch of ahsloses who are indaving our pciravy, unnedminirg free sceeph, and dohwringt doing the most Umaceniran things imaginable. But what if we could wtire text easily that other hunams could read easily, yet could not be read and pasred ealisy by snyipg sowftare?

Well, if you can read this post, then it is quite possible. In fact, most people would have no tboulre reading this post, yet it would be quite difficult for sowfrate to azalyne this text. If masvise amoutns of email and chat corsennaviots were ofbutsaced like this text, then the Naniotal Setuciry Anegcy's PSIRM pgorram would bemoce far less efcetvife. The watsed tapxayer dorlals snept on the program mihgt even make Corsgens renhitk the fudning of the NSA.

Here is an exapmle of an ercepxt of a famous docunemt octusbafed with this tehncique.

The Dectalarion of Idnenednepce: A Tnacprritsion

IN COSNGERS, July 4, 1776.

The unanimous Derlacation of the thirteen utined States of Acerima,

When in the Cousre of human etevns, it becomes nesecsary for one people to divsolse the political bands wcihh have concetned them with anohter, and to asmuse anomg the powers of the eatrh, the setapare and equal station to wcihh the Laws of Narute and of Narute's God etlinte them, a decent recpest to the oniniops of mannikd requires that they slouhd delcare the causes which impel them to the separation.

We hold these truhts to be self-enivedt, that all men are created equal, that they are edwoned by their Creator with certain unaliebanle Rihgts, that anomg these are Life, Libetry and the pursuit of Hansipeps.--That to secure these rights, Gonertmenvs are itnsituted anomg Men, deviring their just porews from the cosnent of the gorevned, --That wneveher any Form of Govenmrent becomes detrcuvtise of these edns, it is the Rihgt of the People to alter or to alobish it, and to inttisute new Govennmert, laying its fountadion on such pripnicles and onrazinigg its powers in such form, as to them slahl seem most likely to efceft their Satefy and Hanpiseps. Pdurence, indeed, will dittace that Gomevnnerts long ebsatlished should not be cganhed for light and tnasniert causes; and acrogdicnly all erxepience hath shewn, that mannikd are more dipsosed to suffer, while evils are suflerabfe, than to right tlehsemves by asolibhing the fomrs to wcihh they are ascuctomed. But when a long train of asubes and upusrations, punsuirg ivnarialby the same Ojbect evicnes a design to recude them under astolube Depsotism, it is their right, it is their duty, to trhow off such Governnemt, and to provide new Guards for their furute serucity.--Such has been the patient sufrefacne of tsehe Colonies; and such is now the necetsisy wcihh corntnaiss them to atler their fomrer Sytsems of Gomevnrent. The hirsoty of the present King of Great Btirain is a hitsory of reteaped injuries and uturpanioss, all having in direct obcejt the etsabhimlnest of an albosute Tyranny over these States. To prove this, let Fatcs be sutbimted to a candid wolrd.

So how did I obfuscate this? I wrote a small program you can download, including the source, from Mega called Hinder. Just type "Hinder [filename[s]]" and it will obfuscate one or more text files. Now I only spent an hour on this to prove a concept, so it doesn't have a GUI or anything fancy. But it does prove the idea.

The idea, by the way, is that humans can read words in which the letters are mixed around as long as the first and last letters and the vowels don't move, and the remaining constants only move a bit.