Ramblings of a Net Cowboy

Totally new encoding method

guydmann — Thu, 08 Sep 2011 00:13:47 +0000

This cryptic uses a new method for encoding the data within the image. I can’t go into detail without giving away a piece of the solution but if you have figured out other messages you will find that my previous suggestions are useless. You will notice that once again the image is dynamic. However this time if you try and analyze what number do not change you will find that they all change. Thus the data must be encoded in some other way. Can you find it?

Cryptic 8

Filed under: Cryptic

Improving my code vs Making things harder

guydmann — Mon, 05 Sep 2011 06:54:33 +0000

As those of you who have looked at cryptic 4-7 already may have noticed; there were some black squares at the lower right of each image. These black spaces represented sections of the image which were not carrying any data. This evening I thought up a simple way to deal with these sections. Now I could have made copies of my original versions and then maintained both. Instead I decided to update the onces I had. I’m not sure if this was the right call. What do you think internet? I suppose the other way I could have gone was to just use the new code in a new message and post that as an incremental update. Thoughts?

Filed under: Uncategorized

Work so far

guydmann — Sun, 04 Sep 2011 18:19:35 +0000

To this point I have done a few straight ASCII character encryptions, a barcode encoding and various image encodings. I have created a page summarizing them all in one place.

Filed under: Cryptic, roundup

Hiding the data further

guydmann — Sun, 04 Sep 2011 02:45:02 +0000

This is another incremental change. In this image i have implemented a new method for placing the data in the image. If you used the comparison method to find the last message that should continue to work here.

Cryptic 7

Filed under: Cryptic

Adding noise – Image encoding

guydmann — Sun, 04 Sep 2011 02:05:59 +0000

Here we are using the same encoding scheme once again but have added a lot of noise. The fact that with this image and the last one the image changes should give some hints. If I were approaching this I would probably get a number of sample sets and determine what data was not changing then attempt to decipher only that dataset. However it is good to note that this attack vector would not be available if I only posted a saved copy of the image.

Filed under: Cryptic

Variations on a Theme – more image encyphering

guydmann — Sun, 04 Sep 2011 01:40:13 +0000

This basically the same as the last one but some randomization is added. If you figured out the previous message you can use what you learned before to attack this. Still very weak.

Filed under: Cryptic

Cryptic 4 – Image Encoding

guydmann — Sun, 04 Sep 2011 00:53:02 +0000

For this cryptic I have created an image with an encoded message. The encoding of the message within the image is very simplistic but it will be a good jumping off point for further development. I will be making more of these that will get increasingly more complex as I add layers of obfuscation and use various methods to encode and encypher the message.

So without further adieu.

Filed under: Cryptic

The Return on Cryptic 1

guydmann — Sat, 03 Sep 2011 00:32:42 +0000

I was thinking about cryptic 1 and thought i would make a little rework of it. This format should make the solution easier for use with a barcode reader. the original could really only be interpreted with software. So I present cryptic 1A

Filed under: Cryptic

Longer and harder

guydmann — Tue, 30 Aug 2011 20:11:41 +0000

So my previous messages have been rather short and were made intentionally weak. This message is again using a weak encryption scheme however it is less obvious than the previous methods. I’m not really sure how I would approach this message from an attack stand point. So if someone comes up with a clever technique, as far as an initial approach, please contribute to the comments

Cryptic 3

Filed under: amazing things, Cryptic

Cryptic Number 2

guydmann — Thu, 25 Aug 2011 23:49:09 +0000

Exciting new cryptic i threw together from a little internet research on weak algorithms. It’s a little more challenging than my others but a big hint should be that when you reload the page the cypher text is different but the message remains the same.

cryptic 2

below are a few permutations but try it yourself.

KŒ¹¯kÂ³¬¿k½ºÀ²³k°¬¾¿wk´¿¾k³ºÀ½k®º¸°k½ºÀ¹¯k¬¿k·¬¾¿wkž·ºÀ®³°¾k¿ºÂ¬½¯¾k°¿³·°³°¸k¿ºk°kº½¹Š

Filed under: amazing things, Cryptic Tagged: cryptic