cbfg-lbhe-pbzzragf----fraq-n-frperg-zrffntr-gb-fbzrbar.
--OGJ-Crbcyr-pna-trg-na-nhgbzngvp-serr-rapbqre/qrpbqre-ng-
uggc://jjj.qharenz.pbz/fueje/ebgqef.mvc-
Gurl-pna-hfr-guvf-gb-cbfg-cfrhqb-rapelcgrq-zrffntrf.
---Naljnlf,-guvf-obneq-vf-jurer-lbh-pna-cbfg-frperg-zrffntrf-bhg-va-choyvp.
--Gur-nirentr-crefba-jvyy-cnff-ol-guvaxvat-lbh-znqr-n-zvfgnxr-naq-gung-gurer
-vf-abguvat-vzcbegnag-urer-gb-or-frra.
--Ohg-Nynf!-gurl-jvyy-or-jebat-va-gurve-nffhzcgvba.
Hfr-gur-cebtenz:--uggc://jjj.qharenz.pbz/fueje/ebgqef.mvc-
gb-cresbez-gur-pbqvat/qrpbqvat-rssbeg-sbe-lbh.
Guvf-pbqr-zrgubq-vf-pnyyrq-EBG-XZ-
(ebgngr-grkg-ol-XZ-cynprf-naq-hfr-gur-yrggre-gung-unccraf-gb-or-gurer-
va-cynpr-bs-gur-bevtvany.--Vs-lbh-hfr-gur-serr-cebtenz-naq-pyvpx-ba-gur-
nobhg-ohggba,-vg-jvyy-rkcynva-jung-vf-tbvat-ba.--Unir-sha!!
Tbbq-Yhpx-naq-orfg-jvfurf-gb-nyy.
investorshub.com
This is a thread header on I-HUB. The first post contains links where a program
can be downloaded to decipher this header and many of the encoded replies.
When I tried to download the program, I couldn't. I proceeded the hard way. I
soon discovered that this will prove one of the easiest ciphers to solve.
Here's how...
uggc://jjj.
This sure looks like the beginning of a URL. If so, I have u,g,c, and j as
h,t,p, and w. Guessing mvc gives me c,o, and m until I see a conflict
with the already established c of http. I look for other extensions. I also
assume that only alphabetic characters have changed. Dashes, because they're
so common are probably spaces.
I began by converting the entire text to lower case characters. As I solve
each, I replace them with a capital.
The -n- tells me n is either a or I. Since what seems like sentences all
begin with capitals, I assume n is a, since I would not expect to see i in
lower case.
A table makes patterns easier to see.
ABCDEFGHIJKLMNOPQRSTUVWXYZ Given
--P---T--W---A------H----- Found
Things appear in alphabetical order, so I fill in the missing characters and
get ...
ABCDEFGHIJKLMNOPQRSTUVWXYZ Given
NOPQRSTUVWXYZA------H----- Found
Since the rest fits too, I put them in and get
ABCDEFGHIJKLMNOPQRSTUVWXYZ Given
NOPQRSTUVWXYZABCDEFGHIJKLM Found
Processing the cipher text against this table, I can see that the same system
has been used for the capitals.
Automating this becomes trivial...
[ 1] void main(int argc, char **argv)
[ 2] {
[ 3] char *p="NOPQRSTUVWXYZABCDEFGHIJKLM";
[ 4] char *q="nopqrstuvwxyzabcdefghijklm";
[ 5] FILE *ifh; char b;
[ 6]
[ 7] if (!(ifh=fopen(argv[argc-1],"r"))) exit(1);
[ 8]
[ 9] while (!feof(ifh))
[10] {
[11] b=(char)fgetc(ifh);
[12] if ((b>=65)&&(b<= 90)) {putchar(*(p+b-65)); b=0;}
[13] if ((b>=97)&&(b<=122)) {putchar(*(q+b-97)); b=0;}
[14] if (b==45) {putchar(32); b=0;}
[15] if (b==32) {putchar(45); b=0;}
[16] if (b) putchar(b);
[17] }
[18]
[19] fclose(ifh); exit(0);
[10] }
Adding line [15] to convert spaces to dashes makes the program work both ways.
Here's the header in plain text. (I've taken some formatting liberty.)
post your comments send a secret message to someone.
BTW People can get an automatic free encoder/decoder at
duneram.com
They can use this to post pseudo encrypted messages.
Anyways, this board is where you can post secret messages out in public.
The average person will pass by thinking you made a mistake and that there
is nothing important here to be seen.
But Alas! they will be wrong in their assumption.
Use the program: duneram.com to perform the
coding/decoding effort for you.
This code method is called ROT KM (rotate text by KM places and use the
letter that happens to be there in place of the original. If you use the
free program and click on the about button, it will explain what is
going on. Have fun!!
Good Luck and best wishes to all.
Cheers, PW.
P.S. I've deciphered the replies on the thread and anyone passing by and
thinking there's nothing important would be correct. |
