The Gutmann method is an algorithm for securely erasing the contents of computer hard disk drives, such as files. Devised by Peter Gutmann and Colin Plumb and presented in the paper Secure Deletion of Data from Magnetic and Solid-State Memory in July 1996, it involved writing a series of 35 patterns over the region to be erased. The selection of patterns assumes that the user does not know the encoding mechanism used by the drive, so it includes patterns designed specifically for three types of drives. A user who knows which type of encoding the drive uses can choose only those patterns intended for their drive. A drive with a different encoding mechanism would need different patterns. Most of the patterns in the Gutmann method were designed for older MFM/RLL encoded disks. Gutmann himself has noted that more modern drives no longer use these older encoding techniques, making parts of the method irrelevant. He said "In the time since this paper was published, some people have treated the 35-pass overwrite technique described in it more as a kind of voodoo incantation to banish evil spirits than the result of a technical analysis of drive encoding techniques". Since about 2001, some ATA IDE and SATA hard drive manufacturer designs include support for the ATA Secure Erase standard, obviating the need to apply the Gutmann method when erasing an entire drive. However, a 2011 research found that 4 out of 8 manufacturers did not implement ATA Secure Erase correctly. (Wikipedia).
Euler’s method - How to use it?
► My Differential Equations course: https://www.kristakingmath.com/differential-equations-course Euler’s method is a numerical method that you can use to approximate the solution to an initial value problem with a differential equation that can’t be solved using a more traditional method,
From playlist Differential Equations
Gaussian Elimination and Gauss Jordan Elimination (Gauss Elimination Method)
Gaussian Elimination and Gauss Jordan Elimination are fundamental techniques in solving systems of linear equations. This is one of the first things you'll learn in a linear algebra class(or matrices class). Here's what you need to know about guassian elimination and guass jordan eliminati
From playlist Algebra
C73 Introducing the theorem of Frobenius
The theorem of Frobenius allows us to calculate a solution around a regular singular point.
From playlist Differential Equations
Gauss-Gordon Method (Gauss-Jordan Elimination analogy)
The Gauss-Gordon Method (Gauss-Jordan Elimination analogy) If you can follow a recipe, you can solve linear systems. This is because the Gauss-Jordan elimination method for solving linear systems is “algorithmic;” simply put, it just follows a prescribed set of steps. In this video, we
From playlist Linear Algebra
C75 Introduction to the Laplace Transform
Another method of solving differential equations is by firs transforming the equation using the Laplace transform. It is a set of instructions, just like differential and integration. In fact, a function is multiplied by e to the power negative s times t and the improper integral from ze
From playlist Differential Equations
Picked up by Harvard University for another season, the creators of CS50 Live bring you... CS50 Live, Season 1. Starring Daven Farnham, Rob Bowden, and Ramon Galvan. Voice-over by Nicholas Gutmann. Directed by Ramon Galvan.
From playlist CS50 Live
Justice, Culture, and Tradition - Session 1: Welcome, Distributive Justice
Welcome Peter Goddard, Director, Institute for Advanced Study Yitzhak Benbaji, Conference Organizer Session 1: Distributive Justice Joan Scott, Institute for Advanced Study, Chair Michael J. Sandel, Harvard University Thomas Scanlon, Harvard University Amy Gutmann, University of Pennsylv
From playlist Social Science
Gaussian Integral 7 Wallis Way
Welcome to the awesome 12-part series on the Gaussian integral. In this series of videos, I calculate the Gaussian integral in 12 different ways. Which method is the best? Watch and find out! In this video, I calculate the Gaussian integral by using a technique that is very similar to the
From playlist Gaussian Integral
Radioactive Cryptography - Peter Gutmann
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From playlist Ignite Foo Camp 2016
Sea Lion: The Grizzly Bear Of The Sea
Hulk. Goliath. Behemoth. These are just a few words to describe the king of the beach: the Sea Lion. Watch with Described Video here: https://youtu.be/JWRgmt02nGE Support Animalogic on Patreon: https://www.patreon.com/animalogic Subscribe for new episodes on Fridays http://bit.ly/Subsc
From playlist Animalogic
23C3: CCC Jahresrückblick (de)
Speakesr: Constanze Kurz, Frank Rosengart, Lars Weiler, Andreas Lehner, Andy Müller-Maguhn Ein Überblick über die Aktivitäten des Clubs 2006 Die Sprecher des CCC stellen die Aktivitäten des und Geschehnisse im Chaos Computer Club im abgelaufenen Jahr vor. Hierunter fallen Berichte und
From playlist 23C3: Who can you trust
Labeling a System by Solving Using Elimination Method
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Medium
Why Physicists Need the Large Hadron Collider
Google Tech Talks October 17, 2008 ABSTRACT The LHC is the biggest (27 kilometers around) scientific instrument ever built and it is now ramping up to start taking data. It smashes together protons at enormous energy in order to create new forms of matter. Physicists hope to find the Hig
From playlist Energy and the Environment
C46 Solving the previous problem by another method
There are more ways than one to solve Cauchy-Euler equations. In this video I revert to the substitution method.
From playlist Differential Equations
SOURCE Boston 2008: Not Dead But Twitching: Anti-Virus Succumbs to the Scourge of Modern Malware
Speaker: Andrew Jaquith The security of PCs is no longer a tractable problem that can be solved by better engineering, more thorough code reviews, user education or bigger budgets. Financially motivated malware is forcing anti-malware vendors to dramatically change strategies. By 2010, ve
From playlist SOURCE Boston 2008
Learn the Basics for Solving a System of Equations by Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Medium
DEFCON 15: The Commercial Malware Industry
Speaker: Peter Gutmann Malware has come a long way since it consisted mostly of small-scale (if prolific) nuisances perpetrated by script kiddies. Today, it's increasingly being created by professional programmers and managed by international criminal organisations. This talk will look at
From playlist DEFCON 15
"Being Du Bois: Lessons in the Management of Identities"
Professor Kwame Anthony Appiah delivered the inaugural Henry Louis Gates, Jr. Lecture, "Being DuBois: Lessons in the Management of Identities," on October 16, 2012, at the Whitney Humanities Center, Yale University. The Gates Lecture, established in 2012 and administered by the Department
From playlist Henry Louis Gates Jr. Lectures
DEFCON 14: Phishing Tips and Techniques: Tackle, Rigging, and How & When to Phish
Speaker: Peter Gutmann Abstract: This talk looks at the technical and psychological backgrounds behind why phishing works, and how this can be exploited to make phishing attacks more effective. To date, apart from the occasional use of psychology grads by 419 scammers, no-one has really l
From playlist DEFCON 14
Solve a system of equation when they are the same line
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Medium