Archive for the ‘security’ Category

BSDCan : One Hour Cryptography

Cryptography is hard. It usually takes many years of study before it is possible to make any serious contribution to the field; and even expert cryptographers often have flaws discovered in their work.

However, merelyAusing cryptography requires far less expertise. In this talk, I will cover everything most software developers will ever need to know about cryptography — starting from the very beginning — along with (time allowing) some of the reasons behind the recommendations I provide.

Specific topics covered will include symmetric vs. asymmetric encryption; symmetric vs. asymmetric signatures; block ciphers; block cipher modes; key lengths; message authentication codes; hash algorithms; password handling; padding for asymmetric encryption; padding for asymmetric signing; Diffie-Hellman groups; and side channel attacks. Specific attacks will be discussed only to the extent of mentioning that they exist and explaining how cryptography-using systems should be designed to thwart them.

.:bsdcan.org->

email

Post to Twitter Post to Facebook

Posted: July 4th, 2010
at 3:45pm by Koookiecrumbles


Categories: security

Comments: No comments


Chaocipher

Chaocipher is a device that has recently been donated to the National Cryptologic Museum. ItAuses two rotors (plaintext alphabet on the right rotor and the ciphertext alphabet on the left rotor) with a process called"twizzling" the alphabets are altered slightlyAafter it goes through each letter. One could Vigenere the cipher, but itAis practically unbreakable, learn more by clicking the link below.

.:ciphermysteries.com->

Post to Twitter Post to Facebook

Posted: July 4th, 2010
at 2:35pm by Koookiecrumbles


Categories: security

Comments: No comments


Cambridge Spies Get Caught

Was this arranged couple of Moscow spies trained to be caught?

According the FBI's affidavit, "Heathfield" was looking for information on U.S. nuclear weapons, among other subjects. Moscow also tasked him to report on "United States policy with regard to the use of the Internet by terrorists, United States policies in Central America, problems with United States military policy and ‘Western estimation of (Russian) foreign policy,"’ the affidavit said.

.:blog.washingtonpost.com->

Post to Twitter Post to Facebook

Posted: June 29th, 2010
at 5:05pm by Koookiecrumbles


Categories: security

Comments: No comments


Science Historian Cracks The Plato Code

Plato was the Einstein of Greece's Golden Age and his work founded Western culture and science. Dr Jay Kennedy's findings are set to revolutionise the history of the origins of Western thought.

Dr Kennedy, whose findings are published in the leading US journalAApeiron, reveals that Plato used a regular pattern of symbols, inherited from the ancient followers of Pythagoras, to give his books a musical structure. A century earlier, Pythagoras had declared that the planets and stars made an inaudible music, a 'harmony of the spheres'. Plato imitated this hidden music in his books.

The hidden codes show that Plato anticipated the Scientific Revolution 2,000 years before Isaac Newton, discovering its most important idea - the book of nature is written in the language of mathematics. The decoded messages also open up a surprising way to unite science and religion. The awe and beauty we feel in nature, Plato says, shows that it is divine; discovering the scientific order of nature is getting closer to God. This could transform today's culture wars between science and religion.

"Plato's books played a major role in founding Western culture but they are mysterious and end in riddles," Dr Kennedy, at Manchester's Faculty of Life Sciences explains.

"In antiquity, many of his followers said the books contained hidden layers of meaning and secret codes, but this was rejected by modern scholars.

"It is a long and exciting story, but basically I cracked the code. I have shown rigorously that the books do contain codes and symbols and that unraveling them reveals the hidden philosophy of Plato.

"This is a true discovery, not simply reinterpretation."

This will transform the early history of Western thought, and especially the histories of ancient science, mathematics, music, and philosophy.

Dr Kennedy spent five years studying Plato's writing and found that in his best-known work theARepublic he placed clusters of words related to music after each twelfth of the text - at one-twelfth, two-twelfths, etc. This regular pattern represented the twelve notes of a Greek musical scale. Some notes were harmonic, others dissonant. At the locations of the harmonic notes he described sounds associated with love or laughter, while the locations of dissonant notes were marked with screeching sounds or war or death. This musical code was key to cracking Plato's entire symbolic system.

Dr Kennedy, a researcher in the Centre for the History of Science, Technology and Medicine, says: "As we read his books, our emotions follow the ups and downs of a musical scale. Plato plays his readers like musical instruments."

.:manchester.ac.uk->

Post to Twitter Post to Facebook

Posted: June 29th, 2010
at 2:35pm by Koookiecrumbles


Categories: hood status,myninjaplease,music,9th dan,science,philosophy,security,language

Comments: No comments


If You See Something, Think Twice About Saying Something

The Travis County Criminal Justice Center was closed for most of the day on Friday, May 14, after a man reported that a "suspicious package" had been left in the building. The court complex was evacuated, and the APD Explosive Ordinance Disposal Unit was called in for a look-see. The package in question, a backpack, contained paperwork but no explosive device. The building reopened at 1:40pm. The man who reported the suspicious package, Douglas Scott Hoopes, was arrested and charged with making a false report and booked into the jail. The charge is a felony punishable by up to two years in jail.

Rick Moranis:

If you see something,
Say something.
If you say something,
Mean something.
If you mean something,
You may have to prove something.
If you can’t prove something,
You may regret saying something.

.:schneier.com->

Post to Twitter Post to Facebook

Posted: June 28th, 2010
at 8:23pm by Koookiecrumbles


Categories: security

Comments: No comments


Visual Cryptography

Visual Cryptography is a special encryption technique to hide information in images in such a way that it can be decrypted by the human vision if the correct key image is used. The technique was proposed by Naor and Shamir in 1994. Visual Cryptography uses two transparent images. One image contains random pixels and the other image contains the secret information. It is impossible to retrieve the secret information from one of the images. Both transparent images or layers are required to reveal the information. The easiest way to implement Visual Cryptography is to print the two layers onto a transparent sheet. When the random image contains truely random pixels it can be seen as a One-time Pad system and will offer unbreakable encryption. In the overlay animation you can observe the two layers sliding over each other until they are correctly aligned and the hidden information appears. To try this yourself, you can copy the example layers 1 and 2, and print them onto a transparent sheet or thin paper. Always use a program that displays the black and white pixels correctly and set the printer so that all pixels are printed accurate (no diffusion or photo enhancing etc). You can also copy and past them on each other in a drawing program like paint and see the result immediately, but make sure to select transparent drawing and align both layers exactly over each other.

.:users.telenet.be->

Post to Twitter Post to Facebook

Posted: June 28th, 2010
at 7:55pm by Koookiecrumbles


Categories: security

Comments: No comments


Secret Codes

The use of codes is intended to convey essential information quickly and with a minimum of misunderstanding to staff. Some places use secret codes to pass information between store employees. These are meant to be a secret as they don't want to alarm the non-staff members or alert someone like a thief to the fact that they have been noticed.

.:uphaa.com->

Post to Twitter Post to Facebook

Posted: June 25th, 2010
at 5:50pm by Koookiecrumbles


Categories: security

Comments: No comments


Snipers Succeed by Missing Their Targets

Zeroing involves shooting your rifle, observing where the bullet hit, making the appropriate adjustments and then repeating the process. To complicate matters, snipers need to continually readjust and shift their zero because changes in climate, wind, elevation and the temperature of the barrel will all affect the bullet's trajectory.

So snipers spend the majority of their time learning from their misses. A common quote is that snipers will shoot 5,000 shots in training for every one that counts in combat. Those 5,000 shots provide the sniper with invaluable DOPE on their gun (DOPE is an acronym for Data On Previous Engagements). One important distinction is that they focus on engagements - not hits or misses. Because both will happen over the course of sniping.

.:blog.theqco.com->

Post to Twitter Post to Facebook

Posted: June 19th, 2010
at 5:15pm by Koookiecrumbles


Categories: weaponry,blogs,security

Comments: No comments


ninja.networks / Ninja Badges

Ninja Networks designs and distributes custom electronic "badges" at DEFCON and other creative conferences around the world.

Kewl.

.:ninjas.org->

Post to Twitter Post to Facebook

Posted: June 10th, 2010
at 5:02pm by Koookiecrumbles


Categories: hood status,gear,design,events,internets,ninjas are everyehere,security

Comments: No comments