Madryga

Broken block ciphers

In cryptography, Madryga is a block cipher published in 1984 by W. E. Madryga. It was designed to be easy and efficient for implementation in software. Serious weaknesses have since been found in the algorithm, but it was one of the first encryption algorithms to make use of data-dependent rotations, later used in other ciphers, such as RC5 and RC6. In his proposal, Madryga set forth twelve design objectives that are generally considered to be good goals in the design of a block cipher. DES had already fulfilled nine of them. The three that DES did not fulfill were: 1. * Any possible key should produce a strong cipher. (Meaning no weak keys, which DES has.) 2. * The length of the key and the text should be adjustable to meet varying security requirements. 3. * The algorithm should be efficiently implementable in software on large mainframes, minicomputers, and microcomputers, and in discrete logic. (DES has a large amount of bitwise permutations, which are inefficient in software implementations.) (Wikipedia).

MadLab's Electronics

I found these 3 electronics kits from MadLab. I thought it would be fun to make a video of the assembly and testing of each one to see what they can do.

From playlist DIY

Medusa and Athena - Ancient Greek Goddesses - Greek Mythology

Based on a story by Lin and Don Donn - https://ancienthistory.mrdonn.org/myths.html, used with permission. Medusa and Athena - Ancient Greek Goddesses - Greek Mythology In later myths (mainly in Ovid) Medusa was the only Gorgon to possess snake locks because they were a punishment from A

From playlist Ancient Greek Mythology

The Mandelbrot set is a churning machine

Its job is to fling off the red pixels and hang onto the green ones. Audio by @Dorfmandesign

From playlist mandelstir

Perseus and Medusa | Ancient Greek Mythology Stories

Based on a story by Lin and Don Donn - https://ancienthistory.mrdonn.org/myths.html, used with permission. Perseus and Medusa | Greek Mythology Stories Perseus, in Greek mythology, the slayer of the Gorgon Medusa and the rescuer of Andromeda from a sea monster. ... Because the gaze of Me

From playlist Ancient Greek Mythology

Persephone | The Greek Goddess of Spring | Ancient Greek Mythology

Based on a story by Lin and Don Donn - https://ancienthistory.mrdonn.org/myths.html, used with permission. Persephone | The Greek Goddess of Spring | Ancient Greek Mythology Greek Goddess of Spring. Daughter of Demeter and Zeus, Persephone is the beautiful goddess of spring. She is call

From playlist Ancient Greek Mythology

Stirring the Mandelbrot Set: a checkerboard

http://code.google.com/p/mandelstir/

From playlist mandelstir

Stirring the Mandelbrot Set

http://code.google.com/p/mandelstir/

From playlist mandelstir

Bear McCreary - Passacaglia

http://www.amazon.com/gp/product/B0036EH3UC/ref=as_li_ss_tl?ie=UTF8&tag=acnlig-20&linkCode=as2&camp=217145&creative=399373&creativeASIN=B0036EH3UC This is a mix of both Passacaglia and The Shape of Things To Come. So Say We All.

From playlist Brilliant Music

Madsen

www.patreon.com/vbbsmyt. The Danish Madsen light machine-gun was originally designed in 1902 and has been in use for over 100 years. It's very compact design uses a hinged bolt modelled on the Martini Rifle action. When a barrel becomes worn it can be quickly replaced by a new unit consis

From playlist Automatic Machine Guns

TANGOAMADEUS 2012, Alejandra Mantinan & Aoniken Quiroga, Part 4

From playlist Tango

Madryga

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