Previously: Shifting 9 to Scramble the 340 Message.
David Oranchak produced an excellent YouTube video showing how he, Sam Blake and Jarl Van Eycke decoded the 340 cipher, requiring the use of a period 19 shift, "crib feature" to isolate particular words, and the implementation of other slight adjustments to finally reveal a legible message. This was groundbreaking work using specialized computer systems such as AZ Decrypt to convert Zodiac's 340 cipher into the readable plaintext we see today. However, this approached the subject matter from the standpoint of breaking the cipher, not the making of the cipher. How did the Zodiac Killer encode the cipher and make so many elementary mistakes, particularly in the second 9 rows of the cipher?
David Oranchak produced an excellent YouTube video showing how he, Sam Blake and Jarl Van Eycke decoded the 340 cipher, requiring the use of a period 19 shift, "crib feature" to isolate particular words, and the implementation of other slight adjustments to finally reveal a legible message. This was groundbreaking work using specialized computer systems such as AZ Decrypt to convert Zodiac's 340 cipher into the readable plaintext we see today. However, this approached the subject matter from the standpoint of breaking the cipher, not the making of the cipher. How did the Zodiac Killer encode the cipher and make so many elementary mistakes, particularly in the second 9 rows of the cipher?
This was the message found: I HOPE YOU ARE HAVING LOTS OF FUN IN TRYING TO CATCH ME - THAT WASN’T ME ON THE TV SHOW - WHICH BRINGS UP A POINT ABOUT ME - I AM NOT AFRAID OF THE GAS CHAMBER BECAUSE IT WILL SEND ME TO PARADICE ALL THE SOONER BECAUSE I NOW HAVE ENOUGH SLAVES TO WORK FOR ME WHERE EVERYONE ELSE HAS NOTHING WHEN THEY REACH PARADICE - SO THEY ARE AFRAID OF DEATH - I AM NOT AFRAID BECAUSE I KNOW THAT MY NEW LIFE IS LIFE WILL BE AN EASY ONE IN PARADICE DEATH.
If the Zodiac Killer started with this legible message it should have been relatively simple to apply a period 19 shift to his two sections of 9 rows, but he seemingly made mistakes in the first 9 rows, and created an unholy mess in the second 9 rows. All I did initially was place the correct plaintext message of "SOONER BECAUSE I NOW HAVE ENOUGH SLAVES TO WORK FOR" into the grid using the period 19 shift (10th to 18th rows). But the Zodiac created this. He made errors in spelling almost immediately, placing in "SOOHEN BECAUSE E EOW HAVE ENSUGH SLAVER TO WORV FOV". I don't see how he could make such glaring errors in the very first word when beginning the message in the second 9 rows (not to mention the following words). This process can be easily achieved by anybody. So what happened? I then completed the whole grid. Follow up article.
YOU CAN ACHIEVE THE SAME RESULT AS ABOVE JUST APPLYING A NINE SHIFT DIRECTLY TO THE MESSAGE (RED), FALLING BACK EIGHT PLACES TO THE "O" OF "KNOW" (BLUE) AND THEN CONTINUING THE NINE SHIFT FORWARDS. KEEP REPEATING THIS PROCESS AS DESCRIBED IN THE PREVIOUS ARTICLE. THIS IS A MUCH EASIER TECHNIQUE.
SOONER BECAUSE I NOW HAVE ENOUGH SLAVES TO WORK FOR ME WHERE EVERYONE ELSE HAS NOTHING WHEN THEY REACH PARADICE - SO THEY ARE AFRAID OF DEATH - I AM NOT AFRAID BECAUSE I KNOW THAT MY NEW LIFE IS
SOONER BECAUSE I NOW HAVE ENOUGH SLAVES TO WORK FOR ME WHERE EVERYONE ELSE HAS NOTHING WHEN THEY REACH PARADICE - SO THEY ARE AFRAID OF DEATH - I AM NOT AFRAID BECAUSE I KNOW THAT MY NEW LIFE IS
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