Geeks for Privacy: Play Color Cipher and Visual Cryptography

Maybe the guys in Anonymous or Wikileaks can now use visual cryptography while using Snapchat to fool the NSA or CIA

Personally I think a browser with inbuilt backdoors to Tor Relays and data transfer by Bit Torrrents could be worthy a project too.

Quit the bullshit, Google- you are as evil as The Russian Communist Empire

I was just reading up on my weekly to-read list and came across this interesting method. It is called Play Color Cipher-

Each Character ( Capital, Small letters, Numbers (0-9), Symbols on the keyboard ) in the plain text is substituted with a color block from the available 18 Decillions of colors in the world [11][12][13] and at the receiving end the cipher text block (in color) is decrypted in to plain text block. It overcomes the problems like “Meet in the middle attack, Birthday attack and Brute force attacks [1]”.
It also reduces the size of the plain text when it is encrypted in to cipher text by 4 times, with out any loss of content. Cipher text occupies very less buffer space; hence transmitting through channel is very fast. With this the transportation cost through channel comes down.

ColorCipherBlocks

Reference-

http://www.ijcaonline.org/journal/number28/pxc387832.pdf

Visual Cryptography is indeed an interesting topic-

Visual cryptography, an emerging cryptography technology, uses the characteristics of human vision to decrypt encrypted
images. It needs neither cryptography knowledge nor complex computation. For security concerns, it also ensures that hackers
cannot perceive any clues about a secret image from individual cover images. Since Naor and Shamir proposed the basic
model of visual cryptography, researchers have published many related studies.

Visual_crypto_animation_demo

Visual cryptography (VC) schemes hide the secret image into two or more images which are called
shares. The secret image can be recovered simply by stacking the shares together without any complex
computation involved. The shares are very safe because separately they reveal nothing about the secret image.

Visual Cryptography provides one of the secure ways to transfer images on the Internet. The advantage
of visual cryptography is that it exploits human eyes to decrypt secret images .

ESPECIALLY SEE |THIS AND THIS

http://cacr.uwaterloo.ca/~dstinson/VCS-flag.html

and

http://cacr.uwaterloo.ca/~dstinson/VCS-pi.html

Even more fun—– visual cryptography using a series of bar codes – leaving the man in middle guessing how many sub images are there and which if at all is the real message

 

vispixel

References-

Color Visual Cryptography Scheme Using Meaningful Shares

http://csis.bits-pilani.ac.in/faculty/murali/netsec-10/seminar/refs/muralikrishna4.pdf

Visual cryptography for color images

http://csis.bits-pilani.ac.in/faculty/murali/netsec-10/seminar/refs/muralikrishna3.pdf

Other Resources

  1. http://users.telenet.be/d.rijmenants/en/visualcrypto.htm
  2. Visual Crypto – One-time Image Create two secure images from one by Robert Hansen
  3. Visual Crypto Java Applet at the University of Regensburg
  4. Visual Cryptography Kit Software to create image layers
  5. On-line Visual Crypto Applet by Leemon Baird
  6. Extended Visual Cryptography (pdf) by Mizuho Nakajima and Yasushi Yamaguchi
  7. Visual Cryptography Paper by Moni Noar and Adi Shamir
  8. Visual Crypto Talk (pdf) by Frederik Vercauteren ESAT Leuven
  9. http://cacr.uwaterloo.ca/~dstinson/visual.html
  10. t the University of Salerno web page on visual cryptogrpahy.
  11. Visual Crypto Page by Doug Stinson
  12. Simple implementation of the visual cryptography scheme based on Moni Naor and Adi Shamir, Visual Cryptography, EUROCRYPT 1994, pp1–12. This technique allows visual information like pictures to be encrypted so that decryption can be done visually.The code outputs two files. Try printing them on two separate transparencies and putting them one on top of the other to see the hidden message. http://algorito.com/algorithm/visual-cryptography

Visual Cryptography 

Ajay- I think a combination of sharing and color ciphers would prove more helpful to secure Internet Communication than existing algorithms. It also levels the playing field from computationally rich players to creative coders.

US Congress cedes cyber-war to Executive Branch

From–

http://www.nytimes.com/2012/06/01/world/middleeast/obama-ordered-wave-of-cyberattacks-against-iran.html?_r=2

Obama Order Sped Up Wave of Cyberattacks Against Iran

By
Published: June 1, 2012

WASHINGTON — From his first months in office, President Obama secretly ordered increasingly sophisticated attacks on the computer systems that run Iran’s main nuclear enrichment facilities, significantly expanding America’s first sustained use of cyberweapons,

From–

http://www.politico.com/news/stories/0612/76973.html

Can the White House declare a cyberwar?

By JENNIFER MARTINEZ and JONATHAN ALLEN | 6/1/12
“When we see the results it’s pretty clear they’re doing it without anybody except a very few people knowing about it, much less having any impact on whether it’s happening or not,” said Rep. Jim McDermott (D-Wash.).

McDermott is troubled because “we have given more and more power to the president, through the CIA, to carry out operations, and, frankly, if you go back in history, the reason we have problems with Iran is because the CIA brought about a coup.”

 

From–

http://www.house.gov/house/Constitution/Constitution.html

Article. I.

Section 1.

All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.

Section. 8.

The Congress shall have Power

Clause 11: To declare War, grant Letters of Marque and Reprisal, and make Rules concerning Captures on Land and Water;

 

Related-

http://www.huffingtonpost.com/2009/10/09/obama-wins-nobel-peace-pr_n_314907.html

Obama Wins Nobel Peace Prize

KARL RITTER and MATT MOORE   10/ 9/09 11:02 PM ET

http://www.law.uchicago.edu/media

Statement Regarding Barack Obama 

The Law School has received many media requests about Barack Obama, especially about his status as “Senior Lecturer.”

From 1992 until his election to the U.S. Senate in 2004, Barack Obama served as a professor in the Law School. He was a Lecturer from 1992 to 1996. He was a Senior Lecturer from 1996 to 2004, during which time he taught three courses per year.

 

Why Cyber War?

The Necessity of Cyber War as a better alternative to traditional warfare

 

By the time our generation is done with this living on this planet, we should have found a way to flip warfare into just another computer game.

 

  1. Cyber War does not kill people but does diminish both production as well offensive capabilities of enemy.
  2. It destroys lesser resources of the enemy irreversibly, thus leading to increased capacity to claim damages or taxes from the loser of the conflict
  3. It does not motivate general population for war hysteria thus minimizing inflationary pressures
  4. Cyber War does not divert too many goods and services (like commodities, metals, fuels) from your economy unlike traditional warfare
  5. Capacity to wage cyber war needs human resources  and can reduce asymmetry between nations in terms of resources available naturally or historically (like money , access to fuel and logistics, geography , educated population,colonial history  )
  6. It is more effective in both offensive and defensive capabilities and at a much much cheaper cost to defense budgets
  7. Most developed countries have already invested heavily in it, and it can render traditional weaponry ineffective and expensive. If you ignore investing in cyber war capabilities your defense forces would be compromised and national infrastructure can be held to ransom

 

Self-defence….is the only honourable course where there is unreadiness for self-immolation.- Gandhi.