Showing posts with label books. Show all posts
Showing posts with label books. Show all posts

THE DIGITAL FORTRESS

Thursday, January 6, 2011
Julius Caesar’s perfect square cipher box

Caesar was the first code writer in history when his foot messengers started getting ambushed and his secret communiqués stolen, he devised a rudimentary(though still genius) way to encrypt his directives. He rearranged the text of his messages such that the correspondence looked senseless. Of course, it was not. Each message had a letter count that was a perfect square-sixteen, twenty five, hundred, depending on how much Caesar needed to say. He secretly informed his messengers that when a random message arrived, they should transcribe the text into a square grid. If they did, and read top to bottom, a secret message would magically appear.


Over time Caesar’s concept of rearranging text was adopted by others who modified it to make it more difficult to break. The pinacle of non-computer based encryption came during World War II. The Nazis built a baffling encryption machine named Enigma. The device resembled an old fashioned typewriter with brass interlocking rotors that revolved in intricate ways and shuffled cleartexts into confounding arrays of seemingly senseless character groupings. Only by having another Enigma machine calibrated the exact same way, could the recipient break the code.

A CODE FROM THE BOOK

PFEE SESN RETM PFMA IRWE OOIG MEEN NRMA
ENET SHAS DCNS IIAA IEER BRNK FBLE LODI


Blocks of four- just like the Enigma

Four by 16=64

A perfect square

Eight rows of eight

P F E E S E S N
R E T M P F H A
I R W E O O I G
M E E N N R M A
E N E T S H A S
D C N S I I A A
I E E R B R N K
F B L E L O D I

Caesar’s box. Read the message up to down. That will give a message.


“Prime difference between elements responsible for Hiroshima and Nagasaki.”

Prime= prime number
Difference= subtraction
Elements= the ones in chemistry

…the common conception that the Nagasaki bomb was a plutonium bomb. In fact, the device employed uranium, like its sister in Hiroshima.

Nagasaki bomb did not use plutonium but rather an artificially manufactured neutron-saturated isotope of uranium 238.


Atomic mass of uranium is 135

U-235, U-238 and Plutonium…


Now it wont take a genius to guess the kill code.

Prime difference of elements…

238-235=3

A prime number.

Difference in mass of the two isotopes of uranium.

Aint that totally genius?
And simple, basically pure?

There is nothing like the digital fortress, no unbreakable code.

An unbreakable code is a mathematical impossibility.

The Bergofsky’s principle holds.

Okay now guys, break this code (of my creation- very easy!)

SDEL AANN YEMR BTLB TKOA
OUAH LOSE VSKN DDMU TRDE
IKFE YTAS RDNI OSJI NAIO
GNRP OTDN NSAG HIKI DDKT
NAET ECRI PODR AESA IFLP



decrypt the message
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credits- The Digital Fortress by Dan Brown
without wax
Hiral



the sorry fate of a creative mind

Friday, September 24, 2010
this one was written when mom forced me to study when I didn't have any intention to do so:P


dear mom academics ain't my field
creativity is where my fortunes yield
when you cry i should get marks
my head explodes with booms and sparks
but if you force me i shall read
yo your desire i shall always heed
but just know that you have subdued
a mind that should have been differently used
you capture it in a cage of reputation
it cant open its wings to reach its ambition
someday the burning desire may die out
you probably would be very proud
that my kid is a doctor, an engineer
but just know my life would be drear
you have managed to hold and bind
the sorry fate of a creative mind


 
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