I have been at work trying to extract the keys per sanborn and scheidts info/clues.

Here are my discoveries.

1. Morse k1 and k2 are tied together at a five letter spot and all three are one time pad derivatives of each other.

2. k3 and k4 share a common link. What threw me off was that sheidt did a otp key shift. Dragging normally will not reveal it.

3. K4 is based off the kryptos abc... keyed alphabet. What you see will prove it. 

4. "Invi" is a skeleton key which reveals partial bits of both k1 and k2's key if you don't do the otp method.

I will start progressively

Decode morse. Shadow Forces.    Read between..    we need "adowf"    

Between subt le sha ding... stop here. Literally.  "Le sha" is what we want.      There's probably a clue in abse nceof light  nceof is repeated.

Raw ciphertext. k2.    xueen.      

Use [rumkin.com](http://rumkin.com) otp. Use the key kryptos. Try mixing those up. adowf, lesha and xueen. I found them in various states decoding. They help reveal keys.

So we have morse, k1 and k2 each with a link. 

I tried to follow the trail. It broke, until I realized my mistake. 

We now begin with k3 and k4. 

If you skim the whole block of k3 with k4 as a pad, starting with alpha key kryptos, you won't see it. I was alternating methods and retraced

  ENDyaHrOHNLSRHEOCPT  EOIBI    DYSHNAIA

OBK    RUOXO    GHULBSOLIFBBWFLRVQQPRNGKSSO

vov jjjjj  etc

tut ddddd etc

This clue restarts with kryptos, but if you backtrace it to the beginning, that would have you end up with yptoskr.

So. The trail picks up with five character one time pad switcharoo. 

eoibi, ruoxo as pad or text will flip. Only with the keyword of kryptos. I started with obkr... as pad and decoded, ended up with vovjjjjj  I thought 5 j's in a row were odd.

I swapped and reversed decode encode etc and got TUTDDDDD which was eye opening due to the howard carter entry.

I mapped this out on a tableau. 

vovjjjjjj lines up vertically with kryptos but scattered.

tutDDDDD lines up... but literally eoibi will be spaced apart evenly reading straight down the column. 

To me this links k4 with one time pad and a keyed alphabet of kryptos. 

As above, now eoibi, ruoxo AND JJJJJ/DDDDD will flip each other. I think the jjjjj/ddddd element may be ongoing to k5.

We have a bunch of 5 digit pad inversions.

adowf                      

lesha                        and maybe nceof

xueen              

\-----------

ruoxo

eoibi

ddddd    or jjjjj      

I think sanborn/schiedt are trying to otp multiple parts of code

together under the otp keyed alphabet of kryptos to fabricate a pad with which to use with k4 and maybe k5.

I am stuck at tutddddd.....    5 d's in a row, evenly spaced vertical under a kryptos key is screaming CLUE! to me. Especially with a key obfuscation attempt made.

If I remember right, the last recently solved puzzle of zodiac did a similar thing, skipping or repeating symbols. Threw off the puzzle.

Floyd Yancey

How to extract keys from kryptos using one time pad.