Search results “Position based cryptography”
Position-based Cryptography [1/2]
We consider what constitutes identities in cryptography. Typical examples include your name and your social-security number, or your fingerprint/iris-scan, or your address, or your (non-revoked) public-key coming from some trusted public-key infrastructure. In many situations, however, where you are defines your identity. For example, we know the role of a bank-teller behind a bullet-proof bank window not because she shows us her credentials but by merely knowing her location. In this paper, we initiate the study of cryptographic protocols where the identity (or other credentials and inputs) of a party are derived from its geographic location. We explore the possibility of Position
Views: 154 Microsoft Research
Advances in Quantum Algorithms & Devices: Position-based cryptography
Advances in Quantum Algorithms & Devices: Position-based cryptography
Views: 101 Microsoft Research
Position-Based Quantum Cryptography: Impossibility and Constructions
Talk at crypto 2011. Authors: Serge Fehr, Rafail Ostrovsky, Vipul Goyal, Christian Schaffner, Nishanth Chandran, Ran Gelles, Harry Buhrman. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=23588
Views: 626 TheIACR
3rd BIU Winter School on Cryptography: Identity-Based Encryption and Variants - Dan Boneh
The 3rd Bar-Ilan Winter School on Cryptography: Bilinear Pairings in Cryptography, which was held between February 4th - 7th, 2013. The event's program: http://crypto.biu.ac.il/winterschool2013/schedule2013.pdf For All 2013 Winter school Lectures: http://www.youtube.com/playlist?list=PLXF_IJaFk-9C4p3b2tK7H9a9axOm3EtjA&feature=mh_lolz Dept. of Computer Science: http://www.cs.biu.ac.il/ Bar-Ilan University: http://www1.biu.ac.il/indexE.php
Views: 5572 barilanuniversity
Christian Schaffner: Quantum Cryptography
I will entertain the audience with a science talk about quantum cryptography, covering both some classics (Quantum Key Distribution) and the latest developments (position-based quantum cryptography) in this fascinating research field. [No previous knowledge of quantum mechanics is required to follow the talk.] Christian Schaffner
Views: 1422 media.ccc.de
Introduction to Lattice Based Cryptography
This short video introduces the concept of a lattice, why they are being considered as the basis for the next generation of public key cryptography, and a short walk through of a specific encryption algorithm. For a very thorough paper designed to be readable for undergraduates I highly recommend https://eprint.iacr.org/2015/938.pdf. *One technical note: At 1:30 I claim that lattices are composed only of integers. This is not true. Some lattices only contain integers, but in general any rational number will do.
Views: 4950 Matthew Dozer
Post-quantum cryptography from supersingular isogeny problems?
We review existing cryptographic schemes based on the hardness of computing isogenies between supersingular isogenies, and present some attacks against them. In particular, we present new techniques to accelerate the resolution of isogeny problems when the action of the isogeny on a large torsion subgroup is known, and we discuss the impact of these techniques on the supersingular key exchange protocol of Jao-de Feo.  See more on this video at https://www.microsoft.com/en-us/research/video/post-quantum-cryptography-supersingular-isogeny-problems/
Views: 847 Microsoft Research
A Survey on Ring-LWE Cryptography
The Ring Learning-with-Errors problem, proposed by Lyubashevsky, Peikert and Regev in 2010, is a variant of the traditional Learning-with-Errors problem, and is an active research area in lattice based cryptography. It has drawn increased attention due to the important application to constructing homomorphic encryption schemes. The security of RLWE problems relies on the hardness of certain standard problems over ideal lattices. In the first part of the talk, I will review the basics of RLWE problems, the hardness proofs, and major RLWE encryption schemes. Then I will survey different attacks to RLWE, including our new attacks to non-dual RLWE in sub-cyclotomic fields and small error dual RLWE on prime cyclotomic fields. I will end by summarizing the security situation for various RLWE problems. This is joint work with Kristin Lauter and Katherine Stange.
Views: 1509 Microsoft Research
How Cell Phones Reveal Your Location - Computerphile
Many of us use Location Services & GPS on smartphones but Cell Phone Companies have been able to track us for a long time. Professor Derek McAuley explains. Blindly Accepting Terms & Conditions http://youtu.be/9Hb2oMlRI0I Security of Data on Disk http://youtu.be/4SSSMi4X_mA http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 128936 Computerphile
HAR 2009: How we eavesdropped 100% of a quantum cryptographic key 4/6
Clip 4/6 Speakers: Ilja Gerhardt, Vadim Makarov Quantum cryptography, as being based on the laws of physics, was claimed to be much more secure than all classical cryptography schemes. (Un)fortunately physical hardware is not beyond of an evil control: We present a successful attack of an existing quantum key distribution system exploiting a photon detector vulnerability which is probably present in all existing devices. Without Alice and Bob losing their faith in their secure communication, we recorded 100% of the supposedly secret key. The actual eavesdropping hardware we have built will be shown during the conference. A brief intro into quantum cryptography will be given at the beginning of the talk. Then, Vadim Makarov will explain the above attack. At the end of the talk, Ilja Gerhardt will (hopefully) present another application of the discovered detector vulnerability, which shall remain a surprise :) For more information go to: https://har2009.org/program/events/168.en.html
Views: 910 Christiaan008
Multi Input Functional Encryption with Unbounded Message Security
Vipul Goyal and Aayush Jain and Adam O'Neill. Talk at Asiacrypt 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27875
Views: 117 TheIACR
Keyword Cipher Encryption and Decryption in C++
Keyword Cipher in C++ 01:18 - Keyword Operations 02:53 - Checking repetition of letters in keyword 04:51 - Alphabet generation with keyword and removing keyword letters from alphabet 07:14 - Encryption 10:22 - Decryption 11:28 - Testing Keyword cipher encryption and decryption using c plus plus Keyword is a monoalphabetic substitution cipher, its algorithm is as following: - Pick a letter as a keyword but no letter of alphabet should repeat in this keyword - Write that word at beginning of alphabet and remove it's letters from alphabet, this version of alphabet will be used for encryption - Write alphabet under the version of alphabet created above - Replace each letter of message with a letter at position of alphabet in keyword alphabet - To Decrypt a letter of message, replace that letter in keyword alphabet with a letter in alphabet at that position
Views: 47 VoxelPixel
Christian Schaffner: Quantum Cryptography (deutsche Übersetzung)
I will entertain the audience with a science talk about quantum cryptography, covering both some classics (Quantum Key Distribution) and the latest developments (position-based quantum cryptography) in this fascinating research field. [No previous knowledge of quantum mechanics is required to follow the talk.] Christian Schaffner
Views: 103 media.ccc.de
Secure Identity-Based Encryption in the Quantum Random O ...
Talk at crypto 2012. Author: Mark Zhandry. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=24298
Views: 441 TheIACR
CS Saturday - Cryptography
FSA instructor Omri Bernstein discusses Cryptography.
Views: 241 Fullstack Academy
Quantum Position Verification in the Random Oracle Model
Quantum Position Verification in the Random Oracle Model by Dominique Unruh. Talk at Crypto 2014.
Views: 224 TheIACR
Johannes Buchmann - Challenges and opportunities of cryptography
Johannes Buchmann, the chairman of CROSSING - Cryptography Based Security Solutions - Technische Universitat Darmstadt, summarizes the challenges of cryptography. However, we'll now be in a position to achieve the protection goals that are required. Buchmann was visiting IQC for PQCrypto 2014, the 6th international conference on post-quantum cryptography (https://pqcrypto2014.uwaterloo.ca/). Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Hierarchical Identity Based Encryption from Affine Messafe Authentication
Presentation at Crypto 2014. Paper by Olivier Blazy and Eike Kiltz and Jiaxin Pan. http://www.iacr.org/cryptodb/data/paper.php?pubkey=25179
Views: 1062 TheIACR
Ken O'Keefe - Position on Cryptocurrency & Monetary Policy - KOK QT3
Support videos like this at https://www.patreon.com/kok Crypto support; Bitcoin - 185LeQJwXjQ7y8FRYaBk2EvqUu1kKhCpPk Ethereum - 0x8cEd06cAa15c326B51eA6903C4e1C680cCd3C78C Litecoin - LUMs8dHtcJ5zVWVnjuMWZ2TA9nBWMpQdYq Dogecoin - DRhdV4UAvuyGHhZ1CDmZSHgneUNcpKpHY1 Ripple (XRP) - rUjxty1WWLwX1evhKf3C2XNZDMcXEZ9ToJ Ken O'Keefe answers the question "Can we abolish the Federal Reserve?" in the 2nd episode of KOK Question Time (QT).
Views: 12307 Ken O'Keefe
Quantum computing and encryption
The effect of quantum computing on digital encryption explained in simple terms.
Views: 59 Cory Phipps
quantum cryptography based on orthogonal states - quantum money from knots
Public Key Cryptography is a cryptographic system that relies on a pair of keys, a private key which is kept secret and a public key which is broadcasted out to the network. '''Quantum Key Distribution''' (QKD) is the task of generating a private key shared between two parties using a (completely insecure) quantum channel and an authenticated (but not private) classical channel (e. Quantum Key Distribution is a cryptographic primitive. Public Key Cryptography EJ Jung Basic Public Key Cryptography. How to Pronounce Words in German (Vowels, Umlaut, Diphthongs) sonice2 behappy Il y a 6 mois. Quantum cryptography draws its strength from the weirdness of reality at small scales. This is our Reply to Peres' Comment [quant-ph/] to Quantum Cryptography Based on Orthogonal States [Phys. Goldenberg L and Vaidman L 1995 Quantum cryptography based on orthogonal states Phys. An introduction to the ideas of public key cryptography using small numbers to explain the process. Quantum key distribution, however, uses light particles. Resource Centre for Quantum Key Distribution, including product datasheets, user cases, white papers and links to selected scientific publications. On Jan 1, 1997, Kouichi Yamazaki (and others) published the chapter: Properties of Quantum Cryptography Based on Orthogonal States: Goldenberg and Vaidman Scheme in the book: Quantum Communication, Computing, and Measurement. The Future of Security: Zeroing In On Un-Hackable Data With Quantum Key Distribution. Full-Text Paper (PDF): Reply to Comment: Quantum Cryptography Based on Orthogonal States. ArXiv:quant-ph/v1 25 Apr 1996 Reply to Comment: Quantum Cryptography Based on Orthogonal States. In short, we are not yet prepared for the world to switch to post-quantum cryptography. Reply to Comment: Quantum Cryptography Based on Orthogonal States. To create a quantum cryptography one time pad, Alice transmits a random sequence of binary digits using randomly chosen detector schemes. Introduction • Quantum cryptography is the single most successful application of Quantum Computing/Information Theory. Position-based quantum cryptography[edit]. In paper [8], Lior and Lev presented a quantum cryptography based on orthogonal states firstly. ArXiv:quant-ph/v1 25 Feb 1995 Quantum Cryptography Based on Orthogonal States Lior Goldenberg and Lev Vaidman School of Physics and Astronomy. PROPERTIES OF QUANTUM CRYPTOGRAPHY BASED ON ORTHOGONAL STATES: GOLDENBERG AND VAIDMAN SCHEME Kouichi Yamazaki, Takashi Matsui, and Osamu Hirota. Public key cryptography enables the following: Encryption and decryption, which allow two communicating parties to disguise data that they send to each other. Quantum cryptography avoids all these issues. Quantum key distribution (QKD) is an important branch of quantum information processing, in particular, is on its way from research laboratories into the real world.
How Does a Quantum Computer Work?
For more on spin, check out: http://youtu.be/v1_-LsQLwkA This video was supported by TechNYou: http://bit.ly/19bBX5G A quantum computer works in a totally different way from a classical computer. Quantum bits or 'qubits' can exist in a superposition state of both zero and one simultaneously. This means that a set of two qubits can be in a superposition of four states, which therefore require four numbers to uniquely identify the state. So the amount of information stored in N qubits is two to the power of N classical bits. Thank you to Andrea Morello and UNSW. For more info, check out: http://bit.ly/17wZ7lt
Views: 2904378 Veritasium
Lower Bounds in the Hardware Token Model
Eleventh IACR Theory of Cryptography Conference TCC 2014 February 24-26, 2014 Shashank Agrawal and Prabhanjan Ananth and Vipul Goyal and Manoj Prabhakaran and Alon Rosen
Views: 295 Calit2ube
Bruce Schneier's Amazing Answers for Questions about Security, Privacy and Cryptography at DEF CON
Bruce Schneier is an internationally renowned security technologist, called a "security guru" by the Economist. He is the author of 12 books, including the New York Times best-seller Data and Goliath: The Hidden Battles to Collect Your Data and Control Your World. Watch this video to see the interesting answers given by Bruce Schneier for many questions asked at DEF CON 23. Bruce Schneier is telling about Computer Security, Hacking, privacy, Cryptography and many other things in an interesting way. I created this video with the YouTube Video Editor (http://www.youtube.com/editor) with Creative common licence provided by DEF CON.
Careers and Scope for Cyber security  - Skills required, Top recruiters, Job Opportunities
Scope for Cyber security . Go through the career opportunities of Cyber security , Govt jobs and Employment News channel from Freshersworld.com – The No.1 job portal for freshers in India. Visit http://www.freshersworld.com?src=Youtube for detailed career information,job openings of Cyber security . From "ethical hackers" who probe and exploit security vulnerabilities in web based applications and network systems to cryptographers who analyze and decrypt hidden information from cyber terrorists, cyber security professional work hard to ensure data stays out of the wrong hands. Cyber security professionals work in virtually every industry, responding rapidly on real world threats. While there are cyber security associate degree programs, high level careers require an array of technical IT skills and advanced analysis capabilities found in graduate-level degree programs. As per Forbes there was One Million Cyber security Job Openings in the year 2016 across the globe. What are the Careers in Cyber Security? A 4 year course focuses on the array of methods used to protect data and information systems. Students receive training in technical and business skills as database applications, system administration and data recovery. Coursework combines criminal psychology, digital forensics and policy analysis. There are 100s of job titles, but the top positions include: • Security Analyst • Security Architect • Security Software Developer • Security Engineer • A Cryptographer What all you require to become a Cyber Security Expert? 1. Earn a Bachelor’s Degree: Most jobs require a four-year bachelor’s degree in cyber security or a related field such as information technology or computer science. Coursework in programming and statistics combined with classes in ethics and computer forensics prepare students with the technical and analytical skills required for successful careers in cyber security. 2. Complete Advanced Training: Some employers will require candidates to hold an advanced degree such as a master’s degree in cyber security. Prospective employers may offer tuition assistance to meet this goal. 3. Pass Security Clearances (if applicable) : Security clearances are necessary for those who wish to work with classified information as part of a military of government agency. A variety of agencies issue both personnel and facility security clearances, but most are issued by the Department of Defense. Each type of clearance has its own procedures and paperwork. The process, which takes three months to a year, does not begin until an employer decides to hire you, at which point you receive a conditional offer of employment. The first step is to submit clearance documentation, followed by a Background Investigation. Things you should be familiar with: • Penetration Testing which is the act of testing the security of your network, server, website or app. • System Administration • Network Analysis - Your server will often be connected to a network. So it is important to understand the traffic coming in and out of your server. • Quality Code - Since you’re a coder, make sure you use the best security practices when developing your websites or web apps. Never trust user input. • CLI, Terminal, Command Prompt or Powershell - Learning how to work in the Command Line will help you to work faster and more efficiently. Coming to the Scope: • You get to work with the State departments responsible for IT SEC and Cyber Security on national level (such as Indian CSIRT under the Ministry of Communications and Information Technology) • You can apply for jobs at State departments which are responsible for critical infrastructure and its protection. • You can apply for jobs at Ministry of Defence, partially Ministry of Law and Justice, Ministry of Information and Broadcasting, Ministry of Science and Technology, • Private companies developing, selling or implementing IT SEC or CYBER SEC products. • Universities, faculties of informatics. Freshersworld on an average posts more than 500 jobs on a daily basis and if your dream is to get a secured position in IT sector, we would say log in to www.freshersworld.com and apply for your dream job immediately. For more jobs & career information and daily job alerts, subscribe to our channel and support us. You can also install our Mobile app for govt jobs for getting regular notifications on your mobile. Freshersworld.com is the No.1 job portal for freshers jobs in India. Check Out website for more Jobs & Careers. http://www.freshersworld.com?src=Youtube - ***Disclaimer: This is just a career guidance video for fresher candidates. The name, logo and properties mentioned in the video are proprietary property of the respective companies. The career and job information mentioned are an indicative generalised information. In no way Freshersworld.com, indulges into direct or indirect recruitment process of the respective companies.
QKD - Extraction of a Secure Key - Sarah Croke - QCSYS 2011
Sarah Croke, a postdoctoral fellow at Waterloo's Perimeter Institute for Theoretical Physics, lectures at the Institute for Quantum Computing on how to extract a secure key in Quantum Key Distribution systems. The lecture was part of the Quantum Cryptography School for Young Students (QCSYS) 2011. For information on attending QCSYS 2012, visit http://iqc.uwaterloo.ca/conferences/qcsys2012/qcsys-home iqc.uwaterloo.ca Twitter: @QuantumIQC www.facebook.com/QuantumIQC quantumfactory.wordpress.com http://iqc.uwaterloo.ca/conferences/qcsys2011/qcsys-home
Ever wonder how Bitcoin (and other cryptocurrencies) actually work?
Bitcoin explained from the viewpoint of inventing your own cryptocurrency. Videos like these made possible by patreon: https://patreon.com/3blue1brown Protocol Labs: https://protocol.ai/ Interested in contributing? https://protocol.ai/join/ Special thanks to the following patrons: http://3b1b.co/btc-thanks Some people have asked if this channel accepts contributions in cryptocurrency form as an alternative to Patreon. As you might guess, the answer is yes :). Here are the relevant addresses: ETH: 0x88Fd7a2e9e0E616a5610B8BE5d5090DC6Bd55c25 BTC: 1DV4dhXEVhGELmDnRppADyMcyZgGHnCNJ BCH: qrr82t07zzq5uqgek422s8wwf953jj25c53lqctlnw LTC: LNPY2HEWv8igGckwKrYPbh9yD28XH3sm32 Supplement video: https://youtu.be/S9JGmA5_unY Music by Vincent Rubinetti: https://soundcloud.com/vincerubinetti/heartbeat Here are a few other resources I'd recommend: Original Bitcoin paper: https://bitcoin.org/bitcoin.pdf Block explorer: https://blockexplorer.com/ Blog post by Michael Nielsen: https://goo.gl/BW1RV3 (This is particularly good for understanding the details of what transactions look like, which is something this video did not cover) Video by CuriousInventor: https://youtu.be/Lx9zgZCMqXE Video by Anders Brownworth: https://youtu.be/_160oMzblY8 Ethereum white paper: https://goo.gl/XXZddT Music by Vince Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 2175020 3Blue1Brown
Practical Quantum Cryptography and Possible Attacks
Google Tech Talks January, 24 2008 ABSTRACT Quantum cryptography is actually about secure distribution of an encryption key between two parties. In this talk I give an introduction to practical quantum cryptography. I will describe the technical details of a few implementations, how the security of the distributed key might be compromised, and what steps can be taken to prevent this. Speaker: Alexander Ling Alexander Ling is a graduate student with the Experimental Quantum Optics group in the Center for Quantum Technologies in Singapore. He has spent the last four years building sources of high-quality polarization-entangled photon-pairs. The entangled light is then used for various things like testing the validity of quantum mechanics and quantum key distribution. He hopes to complete his Ph.D. in 4 months.
Views: 17258 GoogleTechTalks
Swift 2 - Showcase: Alphabet-Position Encryption
In this video, I am showing you my letter to alphabet-position number encryption algorithm.
Views: 202 Ark++
ECC vs RSA: Battle of the Crypto-Ninjas
RSA is the oldest kid in the public-key cryptography playground, and its position of toughest and fastest is under sharp competition from ECC (Elliptic Curve Cryptography). We look at the mathematical difference between the two cryptosystems, showing why ECC is faster and harder than RSA, but also very energy efficient hence its unique advantage in the mobile space. We show how to use ECC in your Java and Android applications. Before finally summarising the state of the union for RSA and ECC in the light of the Snowden leaks, and the likely near-future for public-key cryptography. Author: James McGivern A mathematician turned programmer, James has been working in the software engineer for over 5 years in various industries. He revels in problems that involve data structures or algorithms. Currently working for Cisco's Cloud Web Security group building cloud-based SaaS platform providing real-time threat detection and filtering of internet traffic. James's ambitions are to become a polymath and be a space tourist
Views: 499 Parleys
Shihan Sajeed: Laser Damage Creates Backdoors in Quantum Cryptography
QCrypt 2016, the 6th International Conference on Quantum Cryptography, held in Washington, DC, Sept. 12-16, 2016. Web site: http://2016.qcrypt.net/
Views: 561 QuICS
quantum cryptography fibre - quantum cryptography in space
Quantum cryptography is the science of exploiting quantum mechanical properties to perform cryptographic tasks. Quantum cryptography is a new method for secret communications offering the ultimate security assurance of the inviolability of a Law of Nature. Nordholt a researcher at the loss alamos national lab talks about her work in quantum cryptography.Quantum cryptography describes the use of quantum mechanical effects (in particular quantum communication and quantum computation) to perform cryptographic tasks or to break cryptographic systems. Quantum cryptography draws its strength from the weirdness of reality at small scales. Position-based quantum cryptography[edit]. To create a quantum cryptography one time pad, Alice transmits a random sequence of binary digits using randomly chosen detector schemes. It is the first quantum cryptography protocol.. Quantum cryptography avoids all these issues. In short, we are not yet prepared for the world to switch to post-quantum cryptography. Advances in quantum cryptography for free-space communications. The best known example of quantum cryptography is quantum key distribution which offers an information-theoretically secure solution to the key exchange problem. Bienfang is a physicist in the electron and optical physics division at nist where he works on quantum cryptography... Quantum Cryptography employs this in a very practical manner. Qubitekk developed quantum cryptography solutions for the machine-to-machine (M2M) communications market. Much of her work is focused on fibre quantum cryptography and a quantum random number generator both of which are highly commercializable. "Quantum cryptography uses photons and physics to generate cryptographic keys". Post-quantum cryptography with nick sullivan and adam langley: gcppodcast 123. There are two types of quantum cryptography, quantum key exchange, and cryptography on quantum computers. Furthermore, quantum cryptography is becoming increasingly practical at a fast pace. Advances in quantum cryptography for free-space communications. Introduction In deliverable D17, the report on "entanglement enhanced quantum cryptography fibre systems". 3 Challenges in post-quantum cryptography. Quantum cryptography is NOT a new algorithm to encrypt and decrypt data. In deliverable D17, the report on "entanglement enhanced quantum cryptography fibre systems". Quantum optics, quantum cryptography Fibre optics characterization Single-photon source characterization Failure analysis of electronic circuits. In this video joshua bienfang of nist talks about the quantum cryptographic system that operates over a 1.Oddly enough, the name 'Quantum Cryptography' originally refered to Quantum Key Distribution, (QKD), and not to the use of Quantum Computers for Encryption. Introduction • Quantum cryptography is the single most successful application of Quantum Computing/Information Theory.
Quantum Crypto & Quantum Morch Dualtage
Can we get a like and comment for Crypto and Morch dualtage?!?!?! I hope you guys enjoy this dual, me and morch put a lot of effort into it and the next one will have more creative shots.-Crypto I hope you guys enjoy-Morch Sup guys so here is another edit by me and I would have to say its my favorite one I did for Quantum and I used 2 very different songs the first one is dubstep and the other one is chillstep and I wanted to see if I could do both and I think they came out pretty good and the second part came out plain but that's the type of edits I like so I hope you guys enjoy this edit from me thanks.-Just Morch-https://www.youtube.com/user/oMorch Crypto-https://www.youtube.com/user/AxisEliteNinja Just-https://www.youtube.com/channel/UC6zPncKB1P_Cl8j9fgTYvUA 1st song- Trivecta - The Surface (ft. Roniit) Trivecta https://soundcloud.com/trivectamusic https://www.facebook.com/trivectamusic https://twitter.com/trivectamusic Roniit https://soundcloud.com/electro_doll https://www.facebook.com/roniitmusic https://twitter.com/roniitmusic 2nd song-No Limits - Body Full Of Lightning No LImits https://soundcloud.com/thisisnolimits https://www.facebook.com/ThisIsNoLimits https://twitter.com/ThisIsNoLimits
Views: 1132 Quantum Clan
PARC Forum: "Keeping Secrets from a Mind-Reading Adversary"
PARC Forum Presents: Imagine that someone captures your brain, and then proceeds to read and tamper with every neuron in your brain -- all while you are thinking about a secret that you want to protect. Is any security possible against such a strong adversary? Fortunately, this scenario remains science fiction when applied to humans. But this situation is all too common when we replace humans with computers: software that dictates the behavior of computers is routinely captured and analyzed by adversarial entities. This is a problem that has vexed researchers for decades. In this talk, we'll discuss recent research that has for the first time opened up mathematical approaches to solving this problem. Professor Amit Sahai received his Ph.D. in Computer Science from MIT in 2000. From 2000 to 2004, he was on the faculty at Princeton University. In 2004 he joined UCLA, where he currently holds the position of Professor of Computer Science. His research interests are in security and cryptography, and theoretical computer science more broadly. He is the co-inventor of "Attribute-Based Encryption, Functional Encryption, and Indistinguishability Obfuscation." He has published more than 100 original technical research papers at venues such as the ACM Symposium on Theory of Computing (STOC), CRYPTO, and the Journal of the ACM. He has given a number of invited talks at institutions such as MIT, Stanford, and Berkeley, including the 2004 Distinguished Cryptographer Lecture Series at NTT Labs, Japan. Professor Sahai is the recipient of numerous honors. He was named an Alfred P. Sloan Foundation Research Fellow in 2002, received an Okawa Research Grant Award in 2007, a Xerox Foundation Faculty Award in 2010, a Google Faculty Research Award in 2010, and a 2012 Pazy Memorial Award. He was also awarded the 2016 Lockheed Martin Excellence in Teaching Award. His research has been covered by several news agencies including the BBC World Service, Quanta Magazine, Wired, and IEEE Spectrum.
Learning Crypto: Understanding Forks and Why They Happen
Thinking about purchasing a Ledger Nano Hardware Wallet? Browse their official website: https://www.ledgerwallet.com/r/67ef Want to join coinbase to begin your crypto journey? Here’s a link to get free $10: https://www.coinbase.com/join/558828dc34383271a500003b Step up your game and Check Out Binance too: https://www.binance.com/?ref=10080191 Join the Robinhood app and invite your friends to Robinhood and win free stock. Here's my invite: http://share.robinhood.com/heidic1 Find me on Steemit: www.steemit.com/@heiditravels Twitter: @blockchainchick Instagram: @hheidiann If you’re looking for an app that tracks the price of BTC & ETH and many other coins, check out the CoinView App: https://play.google.com/store/apps/details?id=br.com.freeflowt.coinview LINKS FOR ADDITIONAL READING FOR THIS VIDEO & ALL INFO IN TEXT DOWN BELOW https://www.coindesk.com/short-guide-bitcoin-forks-explained/ https://en.bitcoin.it/wiki/Hardfork https://en.bitcoin.it/wiki/Softfork https://en.wikipedia.org/wiki/List_of_bitcoin_forks https://www.coindesk.com/short-guide-bitcoin-forks-explained/ https://bitcoin.org/en/glossary/soft-fork https://bitcoin.org/en/glossary/hard-fork In my last Learning Crypto video I explained a blockchain. Now I want to talk about what can happen to a blockchain during a fork. Also let’s take a look at the different types of forks and why they happen in the first place. Blockchain forks have been happening for a while now. Contrary to what we’ve been experiencing with Bitcoin the past few months, forks don’t always result in a split of that blockchain. Generally speaking, forks can happen for a couple different reasons. Firstly, the most common type of fork happens when different miners discover a block at the same time. This situation presents two blocks essentially competing for the position of the longest chain. This fork doesn’t result in a split of the blockchain because it is resolved once the next block is added to one of these competing blocks and not the other. Wherever this newest block is added will determine which chain is longest. The longest chain will be considered valid, while the other is invalid, or also called orphaned. The miner of the valid block will be given their block reward while the miner of the orphaned block will receive nothing. Now let’s take a look at a couple different variations of forks: Soft forks and Hard forks. Unlike the forks described earlier, Soft forks and hard forks are results of decisions made by the network of the blockchain. As their name suggests, these variations are different based on the severity of the changes they will impart on the blockchain. Soft forks are commonly referred to as backward compatible, or also, a tightening of the rules. Basically this means that soft forks happen when the network wants to make changes to the rules of their blockchain that will enable nodes that do not upgrade to still agree on the new rules and still consider the new blocks to be valid. A hard fork on the other hand changes the rules of the blockchain in such a way that requires all nodes to upgrade. The consequences of not upgrading will result in miners creating blocks that the upgraded nodes will consider invalid, resulting in them missing out on block rewards. A blockchain splits when a hard fork occurs and for whatever reason, but most of the time the reasons seem to be political or philosophical, a group of miners, nodes and developers decide to continue mining, validating and building onto the chain with the original or older set of rules. This can be seen with the split of the Ethereum blockchain. This particular split resulted in the continuation of the original blockchain with it’s corresponding cryptocurrency called Ethereum Classic. Ethereum is the chain that decided to change the rules- in this instance it was in regards to past transactions. A blockchain can also split when a group of miners, nodes and developers have decided they want to change the way that blockchain should work. They then take it upon themselves to create new rules, and split from the original blockchain to pursue their own goals. This can be seen with the latest Bitcoin Cash and Bitcoin Gold hard forks.
Views: 6898 Crypto Tips
Coinscrum {Presents} : w/ Edge Secure's Paul Puey - Safeguarding Your Crypto
SAFEGUARDING YOUR CRYPTO Coinscrum {Presents} welcomes Paul Puey, CEO and founder of the leading crypto wallet application, Edge Secure. As crypto-based assets continue to flow into the digital wallets of a growing number of enthusiasts and investors, the long-standing issue of security and key management becomes ever more pressing. Paul is a long standing and high profile innovator in the space and will be here to explain Edge's key features as well as giving HODLers, both new and old, some clear insight into what you need to be doing to ensure your assets are safe yet accessible. ABOUT PAUL Paul is a proud Electrical Engineering and Computer Science graduate of UC Berkeley with a wide range of technical skills from low-level 3D graphics systems engineering to development of custom web CMS systems, back before people knew what a CMS was. He held a lead engineering position with Nvidia and significantly contributed to the design of highly cross platform software architecture enabling code-reuse across multiple ASIC generations and across multiple operating systems. A stickler for proper architecture, he insists on projects being designed from the ground up for maintainability and scalability.
Views: 82 Coinscrum
Aise hi
My first composition...very close to my heart....!! P.S.-any resemblance is purely a coincidence....!!
Views: 89 vipul goyal
New Impossibility Results for Concurrent Composition and ...
Talk at crypto 2012. Authors: Shweta Agrawal, Vipul Goyal, Abhishek Jain, Manoj Prabhakaran, Amit Sahai. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=24336
Views: 281 TheIACR
Concurrently Secure Computation in Constant Rounds.
Talk at eurocrypt 2012. Authors: Sanjam Garg, Vipul Goyal, Abhishek Jain, Amit Sahai. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=24248
Views: 109 TheIACR
Actively Secure Two-Party Evaluation of Any Quantum Oper ...
Talk at crypto 2012. Authors: Frédéric Dupuis, Jesper Buus Nielsen, Louis Salvail. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=24302
Views: 84 TheIACR
What is PROVABLE SECURITY? What does PROVABLE SECURITY mean? PROVABLE SECURITY meaning - PROVABLE SECURITY definition - PROVABLE SECURITY explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Provable security refers to any type or level of security that can be proved. It is used in different ways by different fields. Usually, this refers to mathematical proofs, which are common in cryptography. In such a proof, the capabilities of the attacker are defined by an adversarial model (also referred to as attacker model): the aim of the proof is to show that the attacker must solve the underlying hard problem in order to break the security of the modelled system. Such a proof does not consider side-channel attacks or other implementation-specific attacks, because they are usually impossible to model without implementing the system (and thus, the proof only applies to this implementation). Outside of cryptography, the term is often used in conjunction with secure coding and security by design, both of which can rely on proofs to show the security of a particular approach. As with the cryptographic setting, this involves an attacker model and a model of the system. For example, code can be verified to match the intended functionality, described by a model: this can be done through static checking. These techniques are sometimes used for evaluating products (see Common Criteria): the security here depends not only on the correctness of the attacker model, but also on the model of the code. Finally, the term provable security is sometimes used by sellers of security software that are attempting to sell security products like firewalls, antivirus software and intrusion detection systems. As these products are typically not subject to scrutiny, many security researchers consider this type of claim to be selling snakeoil. In cryptography, a system has provable security if its security requirements can be stated formally in an adversarial model, as opposed to heuristically, with clear assumptions that the adversary has access to the system as well as enough computational resources. The proof of security (called a "reduction") is that these security requirements are met provided the assumptions about the adversary's access to the system are satisfied and some clearly stated assumptions about the hardness of certain computational tasks hold. An early example of such requirements and proof was given by Goldwasser and Micali for semantic security and the construction based on the quadratic residuosity problem. There are several lines of research in provable security. One is to establish the "correct" definition of security for a given, intuitively understood task. Another is to suggest constructions and proofs based on general assumptions as much as possible, for instance the existence of a one-way function. A major open problem is to establish such proofs based on P ? NP, since the existence of one-way functions is not known to follow from the P ? NP conjecture. Some proofs of the security are in given theoretical models such as the random oracle model, where real cryptographic hash functions are represented by an idealization. "Exact security" or "concrete security" is the name given to provable security reductions where one quantifies security by computing precise bounds on computational effort, rather than an asymptotic bound which is guaranteed to hold for "sufficiently large" values of the security parameter. Koblitz and Menezes have criticized aspects of provable security research in their papers Another Look at "Provable Security" and Another Look at "Provable Security" II. These views have been controversial in the community. A rebuttal, titled On Post-Modern Cryptography was posted by Oded Goldreich, who argues that the rigorous analysis methodology of provable security is the only one compatible with science. In 2007, Koblitz published "The Uneasy Relationship Between Mathematics and Cryptography" in the Notices of the American Mathematical Society. Several rebuttals have been written by Oded Goldreich, Avi Wigderson and other researchers in the field. Ivan Damgard later wrote position paper at ICALP 2007 on the technical issues, and it was recommended by Scott Aaronson as a good in-depth analysis. ...
Views: 102 The Audiopedia
What Information Is Leaked under Concurrent Composition?
Talk at crypto 2013. Authors: Vipul Goyal, Divya Gupta, Abhishek Jain
Views: 136 TheIACR
The Decimation Cipher
http://demonstrations.wolfram.com/TheDecimationCipher The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. The decimation cipher encrypts a message by using modular arithmetic. Each letter in the message is replaced by its position in the alphabet (a ? 0, b ? 1, ?, z ? 25). These position values are then multiplied by an encryption value. Multiplication is d... Contributed by: Marc Brodie Wheeling Jesuit University Audio created with WolframTones: http://tones.wolfram.com
Views: 1238 wolframmathematica
The PHOTON Family of Lightweight Hash Functions (Crypto 2011)
Jian Guo, Thomas Peyrin, and Axel Poschmann Institute for Infocomm Research, Singapore; Nanyang Technological University, Singapore; and Nanyang Technological University, Singapore Abstract. RFID security is currently one of the major challenges cryptography has to face, often solved by protocols assuming that an ontag hash function is available. In this article we present the PHOTON lightweight hash-function family, available in many dierent avors and suitable for extremely constrained devices such as passive RFID tags. Our proposal uses a sponge-like construction as domain extension algorithm and an AES-like primitive as internal unkeyed permutation. This allows us to obtain the most compact hash function known so far (about 1120 GE for 64-bit collision resistance security), reaching areas very close to the theoretical optimum (derived from the minimal internal state memory size). Moreover, the speed achieved by PHOTON also compares quite favorably to its competitors. This is mostly due to the fact that unlike for previously proposed schemes, our proposal is very simple to analyze and one can derive tight AES-like bounds on the number of active Sboxes. This kind of AES-like primitive is usually not well suited for ultra constrained environments, but we describe in this paper a new method for generating the column mixing layer in a serial way, lowering drastically the area required. Finally, we slightly extend the sponge framework in order to oer interesting trade-os between speed and preimage security for small messages, the classical use-case in hardware.
Views: 1141 TheIACR
Regula Falsi Method on Casio fx-991ES and fx-82MS Calculators + Secret Trick + Proof!
http://www.indiastudychannel.com/r/sujoy70.aspx My Numerical Methods Videos Complete Playlist- http://goo.gl/ZxFOj2 Today I'll tell you many things,read the complete list below- 1. Explained lower limit,upper limit,range of root 2. Definition of Regula Falsi Method 3. Definition and example of Algebraic Equations 4. Definition and example of Transcendental Equations 5. Definition of Root 6. Understanding f(x) or function of x 7. Understanding General Formula of Regula Falsi Method 8. Performing the iterations very easily on Casio fx-9991ES Calculator using fraction feature! 9. How to write iteration values in table format 10. Trick- Finding root of algebraic equation directly on the Casio fx-991ES Calculator! 11. Proof of root on Casio fx-991ES Calculator 12. How to do Regula Falsi Method iterations on Casio fx-82MS Calculator That's it! I've uploaded videos on Statistics,Numerical Methods, Business & Financial Mathematics,Operation Research,Computer Science & Engineering(CSE),Android Application Reviews,India Travel & Tourism,Street Foods,Life Tips and many other topics. And a series of videos showing how to use your scientific calculators Casio fx-991ES & fx-82MS to do maths easily. Click my YouTube channel's link below to watch them. Subscribe to my youtube channel below- http://www.youtube.com/sujoyn70 Please like & share this video :-) My blog- http://www.sujoyn70.blogspot.com Incoming Tags- z score statistics,find mean median mode statistics in ms excel,variance,standard deviation,linear regression,data processing,confidence intervals,average value,probability theory,binomial distribution,matrix,random numbers,error propagation,t statistics analysis,hypothesis testing,theorem,chi square,time series,data collection,sampling,p value,scatterplots,statistics lectures,statistics tutorials,business mathematics statistics,share stock market statistics in calculator,business analytics,GTA,continuous frequency distribution,statistics mathematics in real life,modal class,n is even,n is odd,median mean of series of numbers,math help,Sujoy Krishna Das,n+1/2 element,measurement of variation,measurement of central tendency,range of numbers,interquartile range,casio fx991,casio fx82,casio fx570,casio fx115es,casio 9860,casio 9750,casio 83gt,TI BAII+ financial,casio piano,casio calculator tricks and hacks,how to cheat in exam and not get caught,grouped interval data,equation of triangle rectangle curve parabola hyperbola,graph theory,operation research(OR),numerical methods,decision making,pie chart,bar graph,computer data analysis,histogram,statistics formula,matlab tutorial,find arithmetic mean geometric mean,find population standard deviation,find sample standard deviation,how to use a graphic calculator,pre algebra,pre calculus,absolute deviation,TI Nspire,TI 84 TI83 calculator tutorial,texas instruments calculator,grouped data,set theory,IIT JEE,AIEEE,GCSE,CAT,MAT,SAT,GMAT,MBBS,JELET,JEXPO,VOCLET,Indiastudychannel,IAS,IPS,IFS,GATE,B-Tech,M - Tech,AMIE,MBA,BBA,BCA,MCA,XAT,TOEFL,CBSE,ICSE,HS,WBUT,SSC,IUPAC,Narendra Modi,Sachin Tendulkar Farewell Speech,Dhoom 3,Arvind Kejriwal,maths revision,how to score good marks in exams,how to pass math exams easily,JEE 12th physics chemistry maths PCM,JEE maths shortcut techniques,quadratic equations,competition exams tips and ticks,competition maths,govt job,JEE KOTA,college math,mean value theorem,L hospital rule,tech guru awaaz,derivation,cryptography,iphone 5 fingerprint hack,crash course,CCNA,converting fractions,solve word problem,cipher,game theory,GDP,how to earn money online on youtube,demand curve,computer science,prime factorization,LCM & GCF,gauss elimination,vector,complex numbers,number systems,vector algebra,logarithm,trigonometry,organic chemistry,electrical math problem,eigen value eigen vectors,runge kutta,gauss jordan,simpson 1/3 3/8 trapezoidal rule,solved problem example,newton raphson,interpolation,integration,differentiation,regula falsi,programming,algorithm,gauss seidal,gauss jacobi,taylor series,iteration,binary arithmetic,logic gates,matrix inverse,determinant of matrix,matrix calculator program,sex in ranchi,sex in kolkata,vogel approximation VAM optimization problem,North west NWCR,Matrix minima,Modi method,assignment problem,transportation problem,simplex,k map,boolean algebra,android,casio FC 200v 100v financial,management mathematics tutorials,net present value NPV,time value of money TVM,internal rate of return IRR Bond price,present value PV and future value FV of annuity casio,simple interest SI & compound interest CI casio,break even point,amortization calculation,HP 10b financial calculator,banking and money,income tax e filing,economics,finance,profit & loss,yield of investment bond,Sharp EL 735S,cash flow casio,re finance,insurance and financial planning,investment appraisal,shortcut keys,depreciation,discounting,commerce
Views: 97426 Sujoy Krishna Das
Michele Mosca: Cryptography and Cybersecurity in the Quantum Era
Public Lecture at QCrypt 2016, the 6th International Conference on Quantum Cryptography, held in Washington, DC, Sept. 12-16, 2016. Web site: http://2016.qcrypt.net/
Views: 208 QuICS
Merkle Puzzles in a Quantum World
Talk at crypto 2011. Authors: Gilles Brassard, Louis Salvail, Peter Høyer, Kassem Kalach, Marc Kaplan, Sophie Laplante. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=23586
Views: 371 TheIACR
Illegitimi Non Carborundum (IACR Distinguished Lecture by Ron Rivest)
The 2011 IACR Distinguished Lecture was given by Ron Rivest on August 15, 2011 at Crypto 2011 in Santa Barbara, CA. His slides are at http://www.iacr.org/conferences/crypto2011/slides/Rivest.pdf
Views: 2044 TheIACR
Professor Messer's Security+ Study Group - May 2017
Security+ Training Course Index: http://professormesser.link/sy0401 Professor Messer’s Course Notes: http://professormesser.link/sy0401cn Frequently Asked Questions: http://professormesser.link/faq Download entire video course: http://professormesser.link/401adyt Get the course on MP3 audio: http://professormesser.link/401vdyt Subscribe to get the latest videos: http://professormesser.link/yt Calendar of live events: http://www.professormesser.com/calendar/ 0:09 - Pre Show 10:02 - Start Time 10:42 - Announcements 12:35 - Socrative 13:50 - Sample Questions 14:50 - Answer 19:46 - Question 1 21:58 - Answer 24:49 - Question 2 30:13 - Answer 32:02 - Question 3 37:20 - Answer 41:20 - Question 4 47:09 - Answer 47:21 - Question 5 53:35 - Answer 56:44 - Question 6 1:02:18 - Answer 1:07:53 - CompTIA Objectives 1:13:00 - After Show 1:16:19 - Chat Room Question Is there a dummy proof way to learn a model with no networking experience? 1:18:25 - Caller #1 Is the Security+ Course Notes Book available for purchase yet? Are there going to be any big differences with the new 501 Security+ exam versus the old 401 content? Do you know of any cyber attack courses that are available to take to learn more on that subject? 1:26:55 - Caller #2 Do you have any Linux+ study material content or know of any study content similar to what you provide? 1:31:15 - Caller #3 How to advise best practices against cyber attack and security vulnerabilities? 1:39:21 - Caller #4 In short, why are there so many different Security certification options available? What are the differences between CompTIA security certifications and SANS? 1:49:12 - Caller #5 In what order would you suggest watching your videos and taking the CompTIA certifications? 1:56:40 - Caller #6 What kind of certifications to obtain and what type of job to apply for with a degree in Network Administration? 2:06:11 - Caller #7 What are the obstacles when applying for a job in IT security? Would having experience as a preparatory foreign language instructor be of value when applying for a cybersecurity position? 2:19:44 - Caller #8 Would you recommend investing in a security bootcamp to work as a security analyst as well as studying for my computer science college degree? FOLLOW PROFESSOR MESSER: Professor Messer official website: http://www.professormesser.com/ Twitter: http://www.professormesser.com/twitter Facebook: http://www.professormesser.com/facebook Instagram: http://www.professormesser.com/instagram Google +: http://www.professormesser.com/googleplus
Views: 14776 Professor Messer