Search results “Fast exponentiation in cryptography tools”

Modular arithmetic especially the properties of congruence are an important tool in arriving at quick solutions to a variety of problems. In this video Mayank unravels this concept of Congruence starting with the basic concepts and then explaining the 5 key properties of Congruence (≡):
a+c ≡ (b+d)mod N (Remainder of Sums ≡ Sum of Remainders)
a-c ≡ (b-d)mod N (Remainder of Difference ≡ Difference of Remainders)
ac ≡ (bd)mod N (Remainder of Products ≡ Products of Remainders)
a^e ≡ b^e mod N (Remainder of Exponent ≡ Exponent of Remainders)
a/e ≡ b/e (mod N/gcd(N,e)) (However, don’t do division without writing basic equation
Mayank applies these concepts to arrive at quick solutions for 7 representative problems - reducing seemingly impossible math involving large numbers to mere seconds.
Some example problems from the video:
Find the remainder 6^(6^(6^6 ) )/7
Find the last digit of (17)^16
There are 44 boxes of chocolates with 113 chocolates in each box. If you sell the chocolates by dozens, how many will be leftover?
More Motivations – Reducing Big Number @0:08
Why Bother? – Shortcuts to Several Problems @1:10
Face of a Clock @2:05
Face of a Clock Replace 12 with 0 – Module 12 @4:38
What Happens with 7 Days? @6:20
Running the Clock Backwards @8:37
Addition and Subtraction of Congruence’s @10:54
Application of Addition – Example-1 @14:30
Multiplication in Congruence’s @18:46
Application of Multiplication – Example -2/3 @22:15
Exponentiation in Congruence’s @26:08
Application of Exponentiation Example -4/5 @27:58
Division of Congruence’s: Never Divide, Think from Basics @33:37
Combining Congruence’s @38:43
Example – 6 @40:36
Concept of Multiplicative Inverse @48:33
Summary @49:30
Next – Faster Solutions to Exponent Problems @51:05
#Inverse #Exponentiation #Dozens #Subtraction #Happen #Congruence #Arithmetic #Reducing #Motivations #Delayed #Mayank #Examrace

Views: 56022
Examrace

hardware security - Modular Exponentiation ME Basics
To get certificate subscribe at:
https://www.coursera.org/learn/hardware-security
==================================
Hardware security playlist:
https://www.youtube.com/playlist?list=PL2jykFOD1AWZRNhehPCsDLhfRkM1abYHd
==================================
About this course: In this course, we will study security and trust from the hardware perspective. Upon completing the course, students will understand the vulnerabilities in current digital system design flow and the physical attacks to these systems. They will learn that security starts from hardware design and be familiar with the tools and skills to build secure and trusted hardware.

Views: 306
intrigano

hardware security - Modified Modular Exponentiation
To get certificate subscribe at:
https://www.coursera.org/learn/hardware-security
==================================
Hardware security playlist:
https://www.youtube.com/playlist?list=PL2jykFOD1AWZRNhehPCsDLhfRkM1abYHd
==================================
About this course: In this course, we will study security and trust from the hardware perspective. Upon completing the course, students will understand the vulnerabilities in current digital system design flow and the physical attacks to these systems. They will learn that security starts from hardware design and be familiar with the tools and skills to build secure and trusted hardware.

Views: 135
intrigano

Using EA and EEA to solve inverse mod.

Views: 424496
Emily Jane

hardware security - Montgomery Reduction
To get certificate subscribe at:
https://www.coursera.org/learn/hardware-security
==================================
Hardware security playlist:
https://www.youtube.com/playlist?list=PL2jykFOD1AWZRNhehPCsDLhfRkM1abYHd
==================================
About this course: In this course, we will study security and trust from the hardware perspective. Upon completing the course, students will understand the vulnerabilities in current digital system design flow and the physical attacks to these systems. They will learn that security starts from hardware design and be familiar with the tools and skills to build secure and trusted hardware.

Views: 3874
intrigano

شرح الفرق بين المفتاح العام "wallet address" , والمفتاح الخاص ال "private key"

Views: 606
Blockchain Arabic

This removal guide works for any "virus" ransomware encrypted with RSA-4096. If you have seen this message "all of your files were protected by a strong encryption with rsa-4096" then fallow these steps to remove any leftover of the ransomware.
Source Article: http://howtoremove.guide/rsa-4096-virus-encryption-removal/

Views: 29559
HowToRemove.guide

maths tricks made easy.What is the reminder for 3 power 100 divided by 7. Easy way to find the reminder for higher powers of the numbers.. For more maths tricks - Please contact Mrs. V. Satyavani @ +91 9296603171 / +91 8919336308

Views: 127161
Mathematics Made Easy

Lecture Series on Internet Technologies by Prof.I.Sengupta, Department of Computer Science & Engineering ,IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in

Views: 104345
nptelhrd

A series of preparatory lectures for a math course "Topics in Topology: Scientific and Engineering Applications of Algebraic Topology," offered Fall 2013 through the University of Iowa Division of Continuing Education. For more information see
http://www.math.uiowa.edu/~idarcy/AppliedTopology.html
Lecture 2 can be found at http://youtu.be/2HS9ypIe8es
Lecture 4 can be found at http://youtu.be/9qL003DG7Og
The complete list of preparatory lectures plus additional links can be found at http://homepage.math.uiowa.edu/~idarcy/AT/prelectures.html
Note: The goal of lecture 3 is to introduce modular arithmetic. The picture of the clock is taken (under creative commons license http://creativecommons.org/licenses/by/3.0/) from http://www.flickr.com/photos/catmachine/2875559738/

Views: 3224
Isabel K. Darcy

RSA Example - Calculate d in seconds
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Description
Hello everyone , In this video I am going to discuss about RSA Example in simple way so that you can quickly solve any RSA Example easily in your examination . I am sure after watching this video of RSA Example you will get clear idea about how to solve any RSA Example very easily and quickly in your exams without making any mistakes. RSA Example is most commonly asked question in exams. Rivest Shamir and Adelman published this RSA Example. There are seven steps involved in RSA Example. I am sure you will be able to remember this seven steps of RSA Example after watching my video.
I strongly recommend you to watch my RSA Algorithm video before watching this RSA Example video.
I want to reach maximum number of students in this world and help each student to score well in their exam by watching my FREE videos on COMPUTER ENGINEERING related subjects, YOU can help me to achieve my GOAL by sharing this channel with your classmates, family members , friends and everyone you know so that they can also get help from my YouTube channel as you are getting. Thanks for watching my video.
#RSA #d #rsaencryption

Views: 18606
SR COMPUTER EDUCATION

Itai Dinur and Orr Dunkelman and Nathan Keller and Adi Shamir, Crypto 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27706

Views: 448
TheIACR

MIT 6.046J Design and Analysis of Algorithms, Spring 2015
View the complete course: http://ocw.mit.edu/6-046JS15
Instructor: Srinivas Devadas
In this lecture, Professor Devadas continues with cryptography, introducing encryption methods.
License: Creative Commons BY-NC-SA
More information at http://ocw.mit.edu/terms
More courses at http://ocw.mit.edu

Views: 18239
MIT OpenCourseWare

In this youtube channel we are going to teach you the basic concepts of Cryptography and Network Security.
In this very first lecture we are teaching about Z(n) and Z*(n).

Views: 5391
Quick Trixx

Introduction to Cryptography - I
=====================
Materials (video, slides, english subtitles) from / Stanford Introduction to Cryptography
Slides & Subtitle Link:
http://www.mediafire.com/file/rr8pnxag9kpe3g7/Crypto-I.rar/file
About this Course:
Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems. The second half of the course discusses public-key techniques that let two parties generate a shared secret key. Throughout the course participants will be exposed to many exciting open problems in the field and work on fun (optional) programming projects. In a second course (Crypto II) we will cover more advanced cryptographic tasks such as zero-knowledge, privacy mechanisms, and other forms of encryption.
SKILLS YOU WILL GAIN During the 66 Video in this Course:
1 - Cryptography,
2 - Cryptographic Attacks,
3 - Public-Key Cryptography,
4 - Symmetric-Key Algorithm,

Views: 163
TO Courses

Using the greatest common divisor (GCD) to factorize the public modulo into the secret primes, so we can forge a RSA signature.
Source for the rhme2 challenges: https://github.com/Riscure/Rhme-2016
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#CTF #Cryptography

Views: 47138
LiveOverflow

A visualization of modular arithmetic around a circle, created with python.
The circle is divided up with 0 and 300 at point 0 or 2π on the unit circle.
The white number is the multiplicative coefficient of the visualization.
Every line is a multiplication with the coefficient in modulo 300, and the colour of the lines represents a decimal from 0 to 9.
I got the idea from this Wolfram Alpha demonstration by Jaime Rangel-Mondragon:
http://demonstrations.wolfram.com/GeneratingACardioidVIIJoiningPointsOnACircle/
Music by me and mamoulian69 (past Daddysmilk)

Views: 4451
karius85

Topic covered : Fermat Little theorem and examples in hindi
Find the least residue (modulo p) using Fermat's Little Theorem; or find the remainder when dividing by p. We start with a simple example, so that we can easily check the answer, then look at much bigger numbers where the answers cannot be directly checked on a calculator.
Facebook page ..
https://www.facebook.com/Math.MentorJi/
Math Institute https://youtu.be/m1PzzVSoFQs
Graduate Math app :https://goo.gl/vo2Tj2
Facebook page ..
https://www.facebook.com/Math.MentorJi/
Math Institute https://youtu.be/m1PzzVSoFQs
Graduate Math app :https://goo.gl/vo2Tj2
Euler's phi funciton https://youtu.be/e5TkgCAYBdk
Kernel of homomorphism : https://youtu.be/Sm660fGG5sE
homomorphism and isomorphism : https://youtu.be/WaNdQh0w6Xc
Quotient group :https://youtu.be/zPhKD7ucMY8
Normal Subgroup :https://youtu.be/WkSAWw_4uPE
Product of subgroup :https://youtu.be/o4tCeHZvogM
thoerem related subgroup : https://youtu.be/cfT3ZFmfNLI
Subgroup and examples = https://youtu.be/H7CKR1Nevnw
(a+b)^2 =https://youtu.be/5i5yL2BCwpc
permuatation group theory :https://youtu.be/-VvUsxsujyc
Examples of singularity :https://youtu.be/cgsB8Z5WSPk
Riemann Sum : https://youtu.be/Z3Ecy2Zwukw
Riemann Sum problems https://youtu.be/LKuZreMPiRQ
infimum and supremum https://youtu.be/mK6NZznoZeg
Dirichlet and able test https://youtu.be/WyoMpdh7f0c
uniform convergence : https://youtu.be/_WWsMl0_9BI
MN Test of uniform : https://youtu.be/r5yec-FtlUE
pointwise convergence:http://youtu.be/o_0YjNo_v64
Cauchy integral Formula :http://youtu.be/LEJBT0nLngM
complex integration : http://youtu.be/s2wPryo_Hfs
Limit pt .of infimum & supremue :http://youtu.be/zIn8CTcX-6A
comparsion test(convergence) : http://youtu.be/02IncEDug2Y
Cauchy all theorm :http://youtu.be/G5ZTzjN8KQA
Cauchy sequence with example :http://youtu.be/B-7cUVXSZeI
Cauchy nth root test :http://youtu.be/AOPIZsR4JkU
Basics Of Sequence And Series :http://youtu.be/IZgNfFc481M
Convergence sequence : http://youtu.be/c3Il3eEPvF0
Kernel of homomorphism : https://youtu.be/Sm660fGG5sE
homomorphism and isomorphism : https://youtu.be/WaNdQh0w6Xc
Quotient group :https://youtu.be/zPhKD7ucMY8
Normal Subgroup :https://youtu.be/WkSAWw_4uPE
Product of subgroup :https://youtu.be/o4tCeHZvogM
thoerem related subgroup : https://youtu.be/cfT3ZFmfNLI
Subgroup and examples = https://youtu.be/H7CKR1Nevnw
(a+b)^2 =https://youtu.be/5i5yL2BCwpc
permuatation group theory :https://youtu.be/-VvUsxsujyc
Examples of singularity :https://youtu.be/cgsB8Z5WSPk
Riemann Sum : https://youtu.be/Z3Ecy2Zwukw
Riemann Sum problems https://youtu.be/LKuZreMPiRQ
infimum and supremum https://youtu.be/mK6NZznoZeg
Dirichlet and able test https://youtu.be/WyoMpdh7f0c
uniform convergence : https://youtu.be/_WWsMl0_9BI
MN Test of uniform : https://youtu.be/r5yec-FtlUE
pointwise convergence:http://youtu.be/o_0YjNo_v64
Cauchy integral Formula :http://youtu.be/LEJBT0nLngM
complex integration : http://youtu.be/s2wPryo_Hfs
Limit pt .of infimum & supremue :http://youtu.be/zIn8CTcX-6A
comparsion test(convergence) : http://youtu.be/02IncEDug2Y
Cauchy all theorm :http://youtu.be/G5ZTzjN8KQA
Cauchy sequence with example :http://youtu.be/B-7cUVXSZeI
Cauchy nth root test :http://youtu.be/AOPIZsR4JkU
Basics Of Sequence And Series :http://youtu.be/IZgNfFc481M
Convergence sequence : http://youtu.be/c3Il3eEPvF0
Power series radius,domain convergent:https://youtu.be/C8Bw-gFC1Gg

Views: 16950
Math Mentor

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi
Peano arithmetic proves many theories in mathematics but does have its limits. In order to prove certain things you have to step beyond these axioms. Sometimes you need infinity.
Tweet at us! @pbsinfinite
Facebook: facebook.com/pbsinfinite series
Email us! pbsinfiniteseries [at] gmail [dot] com
Previous Episode - Kill the Mathematical Hydra
https://www.youtube.com/watch?v=uWwUpEY4c8o
Written and Hosted by Kelsey Houston-Edwards
Produced by Rusty Ward
Graphics by Ray Lux
Made by Kornhaber Brown (www.kornhaberbrown.com)
Sources and further references:
Kirby, L.; Paris, J. (1982). "Accessible Independence Results for Peano Arithmetic" (PDF). Bulletin of the London Mathematical Society. 14 (4): 285. doi:10.1112/blms/14.4.285
http://www.cs.tau.ac.il/~nachumd/term/Kirbyparis.pdf
Goodstein, R. (1944), "On the restricted ordinal theorem", Journal of Symbolic Logic, 9: 33–41, doi:10.2307/2268019, JSTOR 2268019
https://www.jstor.org/stable/2268019
Goodstein Sequence
http://mathworld.wolfram.com/GoodsteinSequence.html
The Hydra Game
http://math.andrej.com/2008/02/02/the-hydra-game/
The Hydra Game
https://markhkim.com/blog/mathematics/killing-the-hydra/
Commenters who took on the additional Hydra challenges!
Anirudh sreekumar
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z13ls3jzexjnyhkqp04chzoibx2itfryjro0k
Arjun Ariyil
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z12bttoouvibd3yac04chnmopq23dnr5yhc
Dliess Mgg
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z12eytdz0xn5edk5o04cevyojsuyzxjysmk0k
JedBrunozzi
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z12fgjeolp3ki1qfn23zsjqpexizvvuea
Karan Kumar
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z12rexh50su5gtsbg04cgj1hcvzvf5uxtp00k
Nishada Banana
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z12bel3qsoqze5i3y22kgp5zlovvwsfk
Vedant Bhutra
https://www.youtube.com/watch?v=uWwUpEY4c8o&lc=z12rjrugdpfbcbfrn04cdrehiovsex3wv04

Views: 149335
PBS Infinite Series

Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in

Views: 6062
nptelhrd

One&Done: A Single-Decryption EM-Based Attack on OpenSSL’s Constant-Time Blinded RSA
Monjur Alam
Georgia Tech
Abstract:
This paper presents the first side channel attack approach that, without relying on the cache organization and/or timing, retrieves the secret exponent from a single decryption on arbitrary ciphertext in a modern (current version of OpenSSL) fixed-window constant-time implementation of RSA. Specifically, the attack recovers the exponent’s bits during modular exponentiation from analog signals that are unintentionally produced by the processor as it executes the constant-time code that constructs the value of each “window” in the exponent, rather than the signals that correspond to squaring/multiplication operations and/or cache behavior during multiplicand table lookup operations. The approach is demonstrated using electromagnetic (EM) emanations on two mobile phones and an embedded system, and after only one decryption in a fixed-window RSA implementation it recovers enough bits of the secret exponents to enable very efficient (within seconds) reconstruction of the full private RSA key.
Since the value of the ciphertext is irrelevant to our attack, the attack succeeds even when the ciphertext is unknown and/or when message randomization (blinding) is used. Our evaluation uses signals obtained by demodulating the signal from a relatively narrow band (40 MHz) around the processor’s clock frequency (around 1GHz), which is within the capabilities of compact sub-$1,000 software-defined radio (SDR) receivers.
Finally, we propose a mitigation where the bits of the exponent are only obtained from an exponent in integer-sized groups (tens of bits) rather than obtaining them one bit at a time. This mitigation is effective because it forces the attacker to attempt recovery of tens of bits from a single brief snippet of signal, rather than having a separate signal snippet for each individual bit. This mitigation has been submitted to OpenSSL and was merged into its master source code branch prior to the publication of this paper.
View the full USENIX Security '18 program at https://www.usenix.org/usenixsecurity18/technical-sessions

Views: 168
USENIX

-- Created using PowToon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.

Views: 38
Saujanya Zemse

Proof of the Rabin-Miller Theorem, Showing the Validity of the Rabin-Miller Test for Composite Numbers
In this video we have discussed about how the Primality Testing failed proving Fermat's Theorem so to overcome that we learned about this new method known as Miller Rabin Test.
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Views: 30261
Quick Trixx

Video Demo for Exponent Calculator: This is a free math calculator, which is an easy way to enter in any number and any exponent and then find the solution. Simply enter in any number and then an exponent and press the calculate button!
The best mathematical tool for school and college! If you are a student, it will helps you to learn algebra.
Note: Exponentiation is used in many other fields, including economics, biology, chemistry, physics, as well as computer science, with applications such as compound interest, population growth, chemical reaction kinetics, wave behavior, and public key cryptography.

Views: 16133
GK Apps

Some of the most widely used cryptographic protocols, including TLS, depend on fast execution of modular big-number arithmetic. Cryptographic primitives are coded by an elite set of implementation experts, and most programmers are shocked to learn that performance-competitive implementations are rewritten from scratch for each new prime-number modulus and each significantly different hardware architecture. In the Fiat Cryptography project, we show for the first time that an automatic compiler can produce this modulus-specialized code, via formalized versions of the number-theoretic optimizations that had previously only been applied by hand. Through experiments for a wide range of moduli, compiled for 64-bit x86 and 32-bit ARM processors, we demonstrate typical speedups vs. an off-the-shelf big-integer library in the neighborhood of 5X, sometimes going up to 10X. As a bonus, our compiler is implemented in the Coq proof assistant and generates proofs of functional correctness. These combined benefits of rigorous correctness/security guarantees and labor-saving were enough to convince the Google Chrome team to adopt our compiler for parts of their TLS implementation in the BoringSSL library. The project is joint work with Andres Erbsen, Jade Philipoom, Jason Gross, and Robert Sloan.
See more at https://www.microsoft.com/en-us/research/video/fiat-cryptography-automatic-correct-by-construction-generation-of-low-level-cryptographic-code/

Views: 1193
Microsoft Research

Part 17: This video might be a bit more boring reversing, and I even failed to recognise the implemented algorithm.
🌴 Playlist: https://www.youtube.com/playlist?list=PLhixgUqwRTjzzBeFSHXrw9DnQtssdAwgG
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#CTF #PwnAdventure #ReverseEngineering

Views: 33148
LiveOverflow

http://CppCon.org
Niek J. Bouman “Multi-Precision Arithmetic for Cryptology in C++, at Run-Time and at Compile-Time”
—
Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/CppCon/CppCon2018
—
In the talk, I will present a new C++17 library for multi-precision arithmetic for integers in the order of 100--500 bits. Many cryptographic schemes and applications, like elliptic-curve encryption schemes and secure multiparty computation frameworks require multiprecision arithmetic with integers whose bit-lengths lie in that range.
The library is written in “optimizing-compiler-friendly” C++, with an emphasis on the use of fixed-size arrays and particular function-argument-passing styles (including the avoidance of naked pointers) to allow the limbs to be allocated on the stack or even in registers. Depending on the particular functionality, we get close to, or significantly beat the performance of existing libraries for multiprecision arithmetic that employ hand-optimized assembly code.
Beyond the favorable runtime performance, our library is, to the best of the author’s knowledge, the first library that offers big-integer computations during compile-time. For example, when implementing finite-field arithmetic with a fixed modulus, this feature enables the automatic precomputation (at compile time) of the special modulus- dependent constants required for Barrett and Montgomery reduction. Another application is to parse (at compile-time) a base-10-encoded big-integer literal.
In this talk, I will focus on some Modern C++ language features that I've used to write the library and design its API (e.g., std::array, variadic templates, std::integer_sequence, constexpr, user-defined literals, using-declarations and decltype, and combinations thereof). Also, I will show some benchmarks, and will argue that the integer types offered by the library compose well with STL containers or other libraries (like Eigen for matrix/linear algebra operations).
I will also present some results on formal verification of correctness and the "constant-time" property:
- Correctness is verified using a tool named SAW (Software Analysis Workbench), which tries to prove equivalence between the compiled C++ code (represented as LLVM bitcode) and a behavioral specification given in a high-level functional language;
- "Constant-timeness" is a property that is crucial for implementations of cryptographic protocols to prevent timing attacks. In particular, I succeeded to verify my C++ code with "ct-verif", a tool for verifying the constant-time property for C programs (which was, in its original form, incompatible with C++ due to usage of non-ANSI C in one of its header files)
The library is on Github (Apache 2 licensed)
https://github.com/niekbouman/ctbignum
—
Niek J. Bouman, Eindhoven University of Technology
Researcher Secure Multiparty Computation
2017 - now Postdoc TU/e SODA (Scalable Oblivious Data Mining) project, Eindhoven University of Technology, the Netherlands 2016-2017 Senior Researcher Fraud Detection @ ABN AMRO Bank, Amsterdam, the Netherlands 2014-2016 Postdoc at Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland PhD (2012) Quantum Cryptography/Quantum Information Theory from CWI/Universiteit Leiden, the Netherlands BS'05 MS’07 Electrical Engineering from Universiteit Twente, Enschede, the Netherlands
—
Videos Filmed & Edited by Bash Films: http://www.BashFilms.com

Views: 1734
CppCon

It seems recently offensive tactics, exploits and vulnerabilities are getting all the Info Sec sexy-points. We're going to try and swing this back towards detection as we apply some new-fangled math and techniques to solve some existing problems and tackling new ones. We'll take Data Science off its pedestal and show how, with problem and data understanding you can apply different techniques to make analysis more exciting and effective.
We'll use several open source tools and libraries to perform the data exploration and analysis, including iPython and pandas as well as a data hacking library we've already released. After discovering some useful patterns we'll show how we were able to implement the results so that they can be used for actual network analysis (with some real-world results). Some of the use cases used to demonstrate the concepts will be passive browser fingerprinting and SQL injection detection.
Audience members are welcome and encouraged to play buzzword bingo.
Brian Wylie's interests are data analysis, machine learning and information visualization. Current projects include a breadth of work applying data analysis to security problems. Brian has been a long time advocate of open community projects including the Visualization ToolKit (VTK) and the Titan Informatics Toolkit. Brian's Erdˆs number is 3. Mike Sconzo has been around the Security Industry for quite some time, and really enjoys looking at network traffic. He has recently been using various data analysis techniques to look security related data in a new light where before he'd just use a hex editor.

Views: 244
HackersOnBoard

See http://newae.com/sidechannel/cwdocs/tutorialbasictimingpasswd.html for full details!

Views: 1121
NewAE Technology Inc.

As we are also studying in school we know that how important it is to know how to take/calculate log of any number, that too faster than others (sometimes even faster than your mathematics teacher) . So, we made this video on how to solve log faster than anyone, i.e. in some seconds
Link for Hindi version:- https://youtu.be/eKo7ryuWBDQ
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About Logarithm :-
In mathematics, the logarithm is the inverse operation to exponentiation. That means the logarithm of a number is the exponent to which another fixed number, the base, must be raised to produce that number. In simple cases the logarithm counts factors in multiplication. For example, the base 10 logarithm of 1000 is 3, as 10 to the power 3 is 1000 (1000 = 10 × 10 × 10 = 103); 10 is used as a factor three times. More generally, exponentiation allows any positive real number to be raised to any real power, always producing a positive result, so the logarithm can be calculated for any two positive real numbers b and x where b is not equal to 1. The logarithm of x to base b, denoted logb(x), is the unique real number y such that by = x. For example, log2(64) = 6, as 64 = 26.
The logarithm to base 10 (that is b = 10) is called the common logarithm and has many applications in science and engineering. The natural logarithm has the number e (≈ 2.718) as its base; its use is widespread in mathematics and physics, because of its simpler derivative. The binary logarithm uses base 2 (that is b = 2) and is commonly used in computer science.
Logarithms were introduced by John Napier in the early 17th century as a means to simplify calculations. They were rapidly adopted by navigators, scientists, engineers, and others to perform computations more easily, using slide rules and logarithm tables. Tedious multi-digit multiplication steps can be replaced by table look-ups and simpler addition because of the fact—important in its own right—that the logarithm of a product is the sum of the logarithms of the factors:
log b ( x y ) = log b ( x ) + log b ( y ) , {\displaystyle \log _{b}(xy)=\log _{b}(x)+\log _{b}(y),\,}
provided that b, x and y are all positive and b ≠ 1. The present-day notion of logarithms comes from Leonhard Euler, who connected them to the exponential function in the 18th century.
Logarithmic scales reduce wide-ranging quantities to tiny scopes. For example, the decibel is a unit quantifying signal power log-ratios and amplitude log-ratios (of which sound pressure is a common example). In chemistry, pH is a logarithmic measure for the acidity of an aqueous solution. Logarithms are commonplace in scientific formulae, and in measurements of the complexity of algorithms and of geometric objects called fractals. They describe musical intervals, appear in formulas counting prime numbers, inform some models in psychophysics, and can aid in forensic accounting.
In the same way as the logarithm reverses exponentiation, the complex logarithm is the inverse function of the exponential function applied to complex numbers. The discrete logarithm is another variant; it has uses in public-key cryptography.
CC soon coming in-
如何在短短几秒钟内计算任何数字的日志。如何比任何人更快地解决日志
Comment calculer le journal de n'importe quel nombre en quelques secondes seulement. Comment résoudre le journal plus rapidement que quiconque
كيفية حساب سجل أي عدد في بضع ثوان فقط. كيفية حل سجل أسرع من أي شخص
Hoe kan ik het logboek van een nummer in slechts enkele seconden berekenen. Hoe sneller loggen dan iemand anders
Wie man das Protokoll einer beliebigen Zahl in nur wenigen Sekunden berechnet. Wie man log schneller als jeder löst
Como calcular o log de qualquer número em apenas alguns segundos. Como resolver o log mais rápido do que qualquer um
Come calcolare il registro di qualsiasi numero in pochi secondi. Come risolvere il registro più velocemente di chiunque
Làm thế nào để tính toán nhật ký của bất kỳ số chỉ trong vài giây. Làm thế nào để giải quyết đăng nhập nhanh hơn bất cứ ai

Views: 220941
Ashutosh and Anurag

Developing reliable numerical software has traditionally been a tedious process which requires significant expertise. Recently, our team at the University of Washington has been investigating how tools may lower the barrier to entry for non-experts. This talk discusses two such tools, Herbgrind and Herbie, that help non-expert developers debug and improve their programs. Herbgrind uses a dynamic program analysis that finds root causes for numerical problems in program binaries. Herbgrind instruments program binaries to additionally compute over shadow values that track floating-point operations in higher precision, then uses a taint analysis to find possible causes for erroneous outputs. To recover the context of root cause instructions, it uses anti-unification to build up an abstract representation of instruction inputs. Herbie uses heuristic search to find more-accurate ways of evaluating floating-point formulas. Herbie uses a variety of rewriting strategies to modify the input formula, focusing changes on the part of the formula responsible for the most error. Then, multiple modified formulas can be combined based into one by finding regions of the input space where they are more accurate.
See more at:
- http://herbgrind.ucsd.edu
- http://herbie.uwplse.org
- https://www.microsoft.com/en-us/research/video/numerical-tools-for-non-experts/

Views: 1503
Microsoft Research

Preparing an arduino nano board to perform a power analysis side channel attack and explaining how that can be used to break RSA. Also proof I can't count.
RSA video: https://www.youtube.com/watch?v=sYCzu04ftaY
rhme2 by riscure: http://rhme.riscure.com/home
Oscilloscope: Rigol DS2072A
Soldering Station: Weller WD1
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LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm.

Views: 20591
LiveOverflow

One of the inherent values of cryptocurrency is that transactions are publicized and verified across the network, thus making it very difficult--or even impossible--to compromise. However, with this key benefit comes two significant downfalls of this system: the transaction amounts are public and the addresses (owners) are easily decoded. How does this affect the potential uses of cryptocurrency if it were to be adopted by mainstream?
Join Benedikt Bunz as he analyzes some of the key issues with keeping crypto transactions private and presents an optimistic solution.
This presentation is brought to you by the Stanford Computer Forum and the Stanford Advanced Computer Security Program. If you would like information on how to join the forum and attend the next meeting, see our website: http://forum.stanford.edu/about/howtojoin.php

Views: 908
stanfordonline

Formal methods aim to apply mathematically-based techniques to the development of computer-based systems, especially at the specification level, but also down to the implementation level. This aids early detection and avoidance of errors through increased understanding.
Prof. Jonathan P. Bowen, FBCS, FRSA speaks about experience with these methods at NATS.

Views:
Geoff Sharman

http://media.ccc.de/browse/congress/2014/31c3_-_6154_-_en_-_saal_1_-_201412272300_-_crypto_tales_from_the_trenches_-_nadia_heninger_-_julia_angwin_-_laura_poitras_-_jack_gillum.html
Julia Angwin, Jack Gillum, and Laura Poitras will tell us stories about how they use crypto and privacy-enhancing technologies as high-profile journalists, and rant in an entertaining way about how these tools have failed or are horribly inadequate for their needs. They will also talk about their rare crypto successes.
Nadia Heninger, Julia Angwin, Laura Poitras, Jack Gillum
Help us caption & translate this video!
http://amara.org/v/FuHB/

Views: 232
media.ccc.de

This video demonstrates how to apply several different drawing tools and how to modify them according to your individual preferences. the specific functions in this video demonstrated are: trendlines, pitchforks, arrows, and long positions.
For a free download, please go to www.optimusfutures.com/TradingView.php
Questions?? [email protected]
TRADING FUTURES AND OPTIONS INVOLVES SUBSTANTIAL RISK OF LOSS AND IS NOT SUITABLE FOR ALL INVESTORS. THE USE OF STOP LOSS OR CONTINGENT ORDERS MAY NOT PROTECT PROFITS OR LIMIT LOSSES TO THE AMOUNT INTENTED. CERTAIN MARKET CONDITIONS MAY MAKE IT DIFFICULT OR IMPOSSIBLE TO EXECUTE SUCH ORDERS. PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS.THERE ARE RISKS ASSOCIATED WITH UTILIZING AN INTERNET-BASED EXECUTION, BUT NOT LIMITED TO, THE FAILURE OF HARDWARE, SOFTWARE AND INTERNET CONNECTION. SINCE TRADERS PLATFORM DOES NOT CONTROL SIGNAL POWER, ITS RECEPTION OR ROUTING VIA INTERNET, CONFIGURATION OF YOUR EQUITPMENT OR RELIABILITY OF ITS CONNECTION, WE CANNOT BE RESPONSIBLE FOR COMMUNICATION FAILURES, DISTORTIONS OR DELAYS WHEN TRADING VIA THE INTERNET. TRADERS PLATFORM EMPLOYS PHONE SUPPORT IN THE EVENT OF PLATFORM FAILURE.

Views: 19408
Optimus Futures, LLC

English Version Link - https://www.youtube.com/watch?v=wD8QYQ3-dwY
Is video me log ko jaldi ya sabse tez solve kaise solve kare jaise sawalo ka jawab hai.
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About Logarithm :-
In mathematics, the logarithm is the inverse operation to exponentiation. That means the logarithm of a number is the exponent to which another fixed number, the base, must be raised to produce that number. In simple cases the logarithm counts factors in multiplication. For example, the base 10 logarithm of 1000 is 3, as 10 to the power 3 is 1000 (1000 = 10 × 10 × 10 = 103); 10 is used as a factor three times. More generally, exponentiation allows any positive real number to be raised to any real power, always producing a positive result, so the logarithm can be calculated for any two positive real numbers b and x where b is not equal to 1. The logarithm of x to base b, denoted logb(x), is the unique real number y such that by = x. For example, log2(64) = 6, as 64 = 26.
The logarithm to base 10 (that is b = 10) is called the common logarithm and has many applications in science and engineering. The natural logarithm has the number e (≈ 2.718) as its base; its use is widespread in mathematics and physics, because of its simpler derivative. The binary logarithm uses base 2 (that is b = 2) and is commonly used in computer science.
Logarithms were introduced by John Napier in the early 17th century as a means to simplify calculations. They were rapidly adopted by navigators, scientists, engineers, and others to perform computations more easily, using slide rules and logarithm tables. Tedious multi-digit multiplication steps can be replaced by table look-ups and simpler addition because of the fact—important in its own right—that the logarithm of a product is the sum of the logarithms of the factors:
log b ( x y ) = log b ( x ) + log b ( y ) , {\displaystyle \log _{b}(xy)=\log _{b}(x)+\log _{b}(y),\,}
provided that b, x and y are all positive and b ≠ 1. The present-day notion of logarithms comes from Leonhard Euler, who connected them to the exponential function in the 18th century.
Logarithmic scales reduce wide-ranging quantities to tiny scopes. For example, the decibel is a unit quantifying signal power log-ratios and amplitude log-ratios (of which sound pressure is a common example). In chemistry, pH is a logarithmic measure for the acidity of an aqueous solution. Logarithms are commonplace in scientific formulae, and in measurements of the complexity of algorithms and of geometric objects called fractals. They describe musical intervals, appear in formulas counting prime numbers, inform some models in psychophysics, and can aid in forensic accounting.
In the same way as the logarithm reverses exponentiation, the complex logarithm is the inverse function of the exponential function applied to complex numbers. The discrete logarithm is another variant; it has uses in public-key cryptography.

Views: 92840
Ashutosh and Anurag

"Speaker: Brian Warner
""magic-wormhole"" is a simple tool to move files from one computer to another, like ""scp"" but without the setup. By telling the recipient just a few secret words, the file is safely encrypted and delivered directly to the correct machine. The talk will explain the security mechanics, the cryptography (NaCl and SPAKE2), and how to use the underlying open-source library in your own applications.
Slides can be found at: https://speakerdeck.com/pycon2016 and https://github.com/PyCon/2016-slides"

Views: 13442
PyCon 2016

Low-Cost High Performance VLSI Architecture forMontgomery Modular Multiplication-IEEE PROJECT 2015-2016
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Views: 193
MICANS IEEE PROJECTS 2015 PPT VIDEOS

Views: 126
Lu Ribeiro

Das wohl wichtigste ungelöste Problem der Mathematik.
* Weihnachtsvorlesung 2018 (mehrere Teile) ab hier: http://weitz.de/y/UpQ8z50maV4?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* Weihnachtsvorlesung 2017 (mehrere Teile) ab hier: http://weitz.de/y/TOcQ_jIYQwo?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* "Alternative" Weihnachtsvorlesung 2017: http://weitz.de/y/Vv3Rve3yXBY?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* Weihnachtsvorlesung 2015: http://weitz.de/y/q2iZDtotiM0?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* Weihnachtsvorlesung 2014 (mehrere Teile) ab hier: http://weitz.de/y/40Mt9WdSNEk?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* Weihnachtsvorlesung 2013 (mehrere Teile) ab hier: http://weitz.de/y/2w1_kWn-F0s?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* "Sommervorlesung" 2014: http://weitz.de/y/BNx0ObN6fVc?list=PLb0zKSynM2PAuxxtMK1bxYPV_bUoPtpTB
* zu "1+2+3+...=-1/12" siehe https://youtu.be/YuIIjLr6vUA
* Das Buch: https://youtu.be/t0F-ua7vZZo
Da dieser Vortrag, der ursprünglich vor nur etwa fünfzig Zuhörern gehalten wurde, inzwischen zu meiner Überraschung auf YouTube äußerst populär geworden ist, muss ich doch mal etwas klarstellen: Es handelt sich hier nicht um eine Vorlesung für Mathematiker, sondern um einen einmaligen "populärwissenschaftlichen" Vortrag, der sich an ein bunt gemischtes Publikum richtete; darunter auch viele "Laien", die nur Schulwissen der Mathematik mitbrachten (und das wahrscheinlich auch schon vergessen hatten). Es ging darum, Zuhörern, die sonst nichts mit Mathe am Hut haben, anhand eines Beispiels eine Vorstellung davon zu vermitteln, welche Fragen Mathematiker eigentlich beschäftigen.
Allgemeine Anmerkungen: http://weitz.de/youtube.html

Views: 557156
Weitz / HAW Hamburg

Import data into Tax1099 using the Excel import tool.

Views: 1197
1099 eFile by Tax1099

Alberto Zanoni's new approach for the computation of long integer cube (third power) based on a splitting-in-two divide et impera approach and on a modified Toom-Cook-3 unbalanced method is presented, showing that the "classical" square-and-multiply algorithm is not (always) optimal. The new algorithm is used as a new basic tool to improve long integer exponentiation: different techniques combining binary and ternary exponent expansion are shown. Effective implementations by using the GMP library are tested, and performance comparisons are presented.

Views: 238
albertozann

Views: 292
MUSTAFA AHMED

If you find our videos helpful you can support us by buying something from amazon.
https://www.amazon.com/?tag=wiki-audio-20
Formal methods
In computer science, specifically software engineering and hardware engineering, formal methods are a particular kind of mathematically based techniques for the specification, development and verification of software and hardware systems.The use of formal methods for software and hardware design is motivated by the expectation that, as in other engineering disciplines, performing appropriate mathematical analysis can contribute to the reliability and robustness of a design.
-Video is targeted to blind users
Attribution:
Article text available under CC-BY-SA
image source in video
https://www.youtube.com/watch?v=Yh-M9Xc50Ik

Views: 1406
WikiAudio

ChennaiSunday Systems Pvt.Ltd
We are ready to provide guidance to successfully complete your projects and also download the abstract, base paper from our website
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Output Videos:
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IEEE 2013 Java Projects: http://www.chennaisunday.com/projectsNew.php?id=2&catName=IEEE_2013-2014_Java_Projects
IEEE 2013 Dotnet Projects: http://www.chennaisunday.com/projectsNew.php?id=3&catName=IEEE_2013-2014_Dotnet_Projects
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IEEE 2012 Java Projects: http://www.chennaisunday.com/projectsNew.php?id=26&catName=IEEE_2012-2013_Java_Projects
Output Videos:
https://www.youtube.com/user/siva6351/videos
IEEE 2012 Dotnet Projects: http://www.chennaisunday.com/projectsNew.php?id=28&catName=IEEE_2012-2013_Dotnet_Projects
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https://www.youtube.com/channel/UC4nV8PIFppB4r2wF5N4ipqA/videos
IEEE 2011 Java Projects:
http://chennaisunday.com/projectsNew.php?id=29&catName=IEEE_2011-2012_Java_Project
IEEE 2011 Dotnet Projects:
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IEEE PHP Projects:
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Dotnet Application Projects:
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Views: 74
Chennai Sunday

Intro to classroom expectations -- Created using PowToon -- Free sign up at http://www.powtoon.com/ . Make your own animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.

Views: 169
cydne POLLARD

Cut so only Matthew Green at New America Foundation
Full video https://www.youtube.com/watch?v=We22dT9Yn6Q

Views: 798
rickmerc

© 2019 Public finance in theory and practice musgrave

Bring Your Own Encryption. Learn about customer-managed encryption, and why businesses should stay in control of their encrypted content in the cloud. Securing Business Information in the Cloud. Explore how a new generation of secure, enterprise cloud services mitigates security risks by centralizing documents in one platform. Design Thinking and Enterprise Security. How to Protect Content in the Age of Distributed Computing. Adapting security controls to protect sensitive content has proven difficult in the mobile workplace. Learn how you can secure your content and prevent data loss. Bridging The Cloud Encryption Gap. Learn how you can bridge the cloud encryption gap with customer-managed encryption keys. 10 Lessons from Tech Leaders on Digital Transformation. 4 Ways to Build Better Apps with Secure Content Services. 5 Counterintuitive Mistakes Made by Companies Going Digital. Learn how to make the right decisions upfront while building your digital business. Whitepapers. Explore the four key points you should consider when deciding between cloud versus hybrid for your business. The Future of Security.