In cryptography, subliminal channels are covert channels that can be used to communicate secretly in normal looking communication over an insecure channel. Subliminal channels in digital signature crypto systems were found in 1984 by Gustavus Simmons. Simmons describes how the "Prisoners' Problem" can be solved through parameter substitution in digital signature algorithms. (Note that Simmons' Prisoners' Problem is not the same as the Prisoner's Dilemma.) Signature algorithms like ElGamal and DSA have parameters which must be set with random information. He shows how one can make use of these parameters to send a message subliminally. Because the algorithm's signature creation procedure is unchanged, the signature remains verifiable and indistinguishable from a normal signature. Therefore, it is hard to detect if the subliminal channel is used. * Subliminal channels can be classified into broadband and narrowband channel types. * Broadband and narrowband channels can exist in the same datastream. * The broadband channel uses almost all available bits that are available to use. This is commonly understood to mean {≥50% but ≤90%} channel utilization. * Every channel which uses fewer bits is called a narrow-band channel. * The additional used bits are needed for further protection, e.g., impersonation. The broadband and the narrow-band channels can use different algorithm parameters. A narrow-band channel cannot transport maximal information, but it can be used to send the authentication key or datastream. Research is ongoing : further developments can enhance the subliminal channel, e.g., allow for establishing a broadband channel without the need to agree on an authentication key in advance. Other developments try to avoid the entire subliminal channel. (Wikipedia).
Woo! More drawing with code -- Watch live at https://www.twitch.tv/simuleios
From playlist subroutine
The interaction between light and the surface upon which it lands is discussed, with the interest of explaining why objects appear the color that they appear. Principles of color subtraction are described and applied to numerous situations. You can find more information that supports this
From playlist Light Waves and Color Tutorial Series
Subsequence Definition In this video, I define the notion of a subsequence and illustrate with some examples. I also show that if a sequence converges, then any subsequence converges as well Check out my Sequences Playlist: https://www.youtube.com/watch?v=collx3am6II&list=PLJb1qAQIrmmCu
From playlist Sequences
Chemistry - Liquids and Solids (57 of 59) Phase Change: Sublimation and Deposition
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain of the phase changes of sublimation and deposition.
From playlist CHEMISTRY 16 LIQUIDS AND SOLIDS
01b Spatial Data Analytics: Subsurface Data
Lecture of the data available for subsurface modeling.
From playlist Spatial Data Analytics and Modeling
This shows an interactive illustration that shows vector subtraction. The clip is from the book "Immersive Linear Algebra" at http://www.immersivemath.com.
From playlist Chapter 2 - Vectors
What is an Injective Function? Definition and Explanation
An explanation to help understand what it means for a function to be injective, also known as one-to-one. The definition of an injection leads us to some important properties of injective functions! Subscribe to see more new math videos! Music: OcularNebula - The Lopez
From playlist Functions
How to use the Subtotal Feature and the SUBTOTAL Function in Excel
Sign up for our Excel webinar, times added weekly: https://www.excelcampus.com/blueprint-registration/ In this video, discover the difference between the SUBTOTAL function and the Subtotal feature in Excel and learn how to use both to insert subtotals in your data. Here is a link to the
From playlist Formulas & Functions
5 Ridiculous Myths About Your Brain | What the Stuff?!
From Mozart to subliminal messages, a lot of people have been spreading myths about your brain. So what’s the truth? Top 10 Myths About the Brain http://science.howstuffworks.com/life/inside-the-mind/human-brain/10-brain-myths.htm What the Stuff?! episodes are available every Monday and
From playlist Stuff About Being Human
Transformer - Part 8 - Decoder (3): Encoder-decoder self-attention
This is the third video about the transformer decoder and the final video introducing the transformer architecture. Here we mainly learn about the encoder-decoder multi-head self-attention layer, used to incorporate information from the encoder into the decoder. It should be noted that thi
From playlist A series of videos on the transformer
The Truth About Subliminal Messages
Subliminal advertising would be every advertiser’s perfect fantasy and every consumer’s worst nightmare… if it really worked. Hosted by: Brit Garner ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following
From playlist SciShow Psych
Is Subliminal Messaging Real? | Earth Lab
Are we free-willed and self-aware or could it be that we are just confused apes in the thrall of our subconscious mind? Greg Foot takes a looking at the murky idea of subliminal messaging. Subscribe for more awesome science - http://www.youtube.com/subscription_center?add_user=Headsqueez
From playlist Earth Lab Originals - Fresh from the BBC Earth Lab
5 Myths You've Probably Seen on TV
There are some persistent myths about human psychology that appear on TV all the time. But people are complicated, and a lot of times, what we (and these shows) take to be true about human nature… may not be as accurate as we think. Hosted by: Anthony Brown ---------- Support SciShow by b
From playlist SciShow Psych
You're Constantly Bombarded With Propaganda... But Can You Stop It?
Episode 3 of 3 Check us out on Soundcloud! https://soundcloud.com/dnewsplus Please Subscribe! http://bit.ly/28iQhYC Discovery GO - http://smart.link/57ae195b47796 Science GO - http://smart.link/57ae1a34dd168 Check out The Great Courses Plus: Sign up today and get a Free M
From playlist From Religion To War: How Propaganda Changed The World
O'Reilly Webcast: Psychotronica
Psychotronica: Abusing and Leveraging Intelligence from Social Networking In this presentation, we go beyond discussing the obvious security and privacy implications of social media. Topics of discussion include: Hacking the Psyche: Remote behavior analysis that can be used to con
From playlist O'Reilly Webcasts
Stuff They Don't Want You To Know LIVE with Matt and Ben! 2:15 DARPA - brain enhancement 4:15 TDCS - Transcranial direct-current stimulation 4:35 Technical...... 5:55 TMS - Transcranial Magnetic Stimulation 6:36 Deceptive Brain Part 3 on our youtube 8:20 Subliminal messages 8:40 N
From playlist Stuff They Don't Want You To Know, New Episodes!
Pawn Stars: Pepsi Limited Edition Cans | History
In this scene, Rick and Chum try to make a deal with a client over vintage, limited-edition Pepsi cans. Subscribe for more from Pawn Stars: http://po.st/SubscribeToPawnStars Watch more Pawn Stars on YouTube in this playlist: http://po.st/Pawnstar_official Find out more about the show an
From playlist Pawn Stars: Official Series Playlist | New Episodes Wednesdays at 8/7c | History
Absolute threshold of sensation | Processing the Environment | MCAT | Khan Academy
Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/processing-the-environment/sensory-perception/v/somatosensation-1?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/processing-the-environment/sensory-per
From playlist Processing the environment | MCAT | Khan Academy
Emmanuel Trélat - Analyse spectrale des Laplaciens sous-Riemanniens, mesure de Weyl
Dans une série de travaux avec Yves Colin de Verdière et Luc Hillairet, nous étudions les propriétés spectrales des Laplaciens sous-Riemanniens, qui sont des opérateurs hypoelliptiques. L'objectif principal est d'obtenir des résultats d'ergodicité quantique, ce que nous avons fait en géo
From playlist Journée Sous-Riemannienne 2016
Definition of an Injective Function and Sample Proof
We define what it means for a function to be injective and do a simple proof where we show a specific function is injective. Injective functions are also called one-to-one functions. Useful Math Supplies https://amzn.to/3Y5TGcv My Recording Gear https://amzn.to/3BFvcxp (these are my affil
From playlist Injective, Surjective, and Bijective Functions