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12. Network Security
 
01:18:26
MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses network security, and how TCP/IP has evolved. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 62081 MIT OpenCourseWare
1. Introduction, Threat Models
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich gives a brief overview of the class, summarizing class organization and the concept of threat models. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 394718 MIT OpenCourseWare
14. SSL and HTTPS
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses how to cryptographically protect network communications, as well as how to integrate cryptographic protection of network traffic into the web security model. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 77636 MIT OpenCourseWare
Lecture 1: Introduction to Cryptography by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com. The book chapter "Introduction" for this video is also available for free at the website (click "Sample Chapter").
22. Cryptography: Encryption
 
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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: 17940 MIT OpenCourseWare
Lecture 8: Advanced Encryption Standard (AES) by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com. The AES book chapter for this video is also available at the web site (click Sample Chapter).
13. Network Protocols
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses the Kerberos authentication service. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 86272 MIT OpenCourseWare
Lecture 7: Introduction to Galois Fields for the AES by Christof Paar
 
01:30:50
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Secure Multiparty Computation - Tal Rabin Technion lecture - Part 1
 
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Secure Multiparty Computation - Tal Rabin of IBM Technion-Israel Institute of Technology lecture at Technion Computer Engineering 2014 summer school. Since it's introduction in 1982, the area of two and multi-party computation has been an exciting and vibrant research topic. The theoretical research in and the applications of multi-party computations are a source of beautiful results and great importance in the era of the internet and cloud computing. Solutions from this area provide enhanced security and privacy in our connected world. In this talk we will give a flavor of the techniques and discuss various applications introduced in the 30 years of innovation in the field.
Views: 5280 Technion
Chinese Remainder Theorem (Solution of Congruence) Cryptography and Network security in Hindi.
 
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Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ====================================================== Answer of your Questions Asked to me. (direct Link given below) Blogger Link - http://shalik-htd.blogspot.com/ ====================================================== Hey, friends, I upload the videos in this channel in Hindi for Engineering student of UPTU and other universities for computer science and IT (information technology) students. like share and subscribe my channel ====================================================== Install C Programming Solution Android app - https://play.google.com/store/apps/details?id=com.shalik.patel.cprogrammingsolution ====================================================== ====================================================== My Career Planning android app - https://play.google.com/store/apps/details?id=guide.mycareer.com.rec.mycareer ====================================================== ====================================================== My Android App for my College Library (An Official App Of College Library) - https://play.google.com/store/apps/details?id=jrv.library.rec.reclibrary ====================================================== How to use android application - https://www.youtube.com/watch?v=1hMZCvl-JxM ====================================================== Contact me on Facebook - https://www.facebook.com/HTD-hub-250593705388294/?ref=br_rs ====================================================== Follow me on twitter - https://twitter.com/PatelShalik ======================================================
20. Mobile Phone Security
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses the Android platform and its security design. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 13366 MIT OpenCourseWare
8. Web Security Model
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: James Mickens In this lecture, Professor Mickens introduces the concept of web security, specifically as it relates to client-side applications and web browser security models. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 23571 MIT OpenCourseWare
DES -- The Algorithm
 
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DES -- Data Encryption Standard -- has been the workhorse of modern cryptography for many decades. It has never been compromised mathematically (not in the open literature, at least), yet, its design notes were never made public either. Many who use it are unaware of how it works. Here we open the DES box and find inside a repetition of sub-boxes in which very simple primitives are at work: substitution, transposition, split, concatenation, and bit-wise operation. DES inside teaches us that complexity is comprised of a lot of simplicity.
Views: 145986 Gideon Samid
Introduction to Computer Security - Information Security Lesson #1 of 12
 
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Dr. Soper provides an introduction to computer security. Topics covered include dependence on technology, information assets, threats, vulnerabilities, controls, confidentiality, integrity, availability, types of attackers, methods of defense, and multi-layered security.
Views: 444256 Dr. Daniel Soper
19. Anonymous Communication
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nick Mathewson In this lecture, Nick Mathewson delivers a guest lecture on Tor and Anonymous communication. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 8835 MIT OpenCourseWare
16. Side-Channel Attacks
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses side-channel attacks, specifically timing attacks. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 13230 MIT OpenCourseWare
2.4.1 RSA Public Key Encryption: Video
 
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MIT 6.042J Mathematics for Computer Science, Spring 2015 View the complete course: http://ocw.mit.edu/6-042JS15 Instructor: Albert R. Meyer License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 20270 MIT OpenCourseWare
21. Cryptography: Hash Functions
 
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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 covers the basics of cryptography, including desirable properties of cryptographic functions, and their applications to security. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 76120 MIT OpenCourseWare
Lecture 5: Data Encryption Standard (DES): Encryption by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
CISSP Lecture 19 Security Engineering (Cryptography Part 1)
 
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Free CISSP Certified Information system security professional Lectures from Urdu IT academy http://urduitacademy.com http://urduitacademy.blogspot.com
Views: 5265 URDUIT Academy
Lecture 11: Number Theory for PKC: Euclidean Algorithm, Euler's Phi Function & Euler's Theorem
 
01:31:02
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Lecture 13: Diffie-Hellman Key Exchange and the Discrete Log Problem by Christof Paar
 
01:20:47
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
17. User Authentication
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: James Mickens In this lecture, Professor Mickens discusses authentication schemes and their implementations. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 11015 MIT OpenCourseWare
CISSP DOMAIN 4 : Communications and Network Security Part (1/4)
 
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CISSP certification is the world’s most valuable documents in the field of information This document is provided by ICS 2. CISSP course with ten primary domain that exists in the field of security are deeply familiar. After passing the CISSP people can determine an organization’s security policies and play an important role in its implementation. CISSP course based design approach and strategy of an organization is huge. Therefore people who want this course has to have at least three years of work experience in the field of security and content of courses such as ECSA, CHFI, CEH CISSP certified .mdrk are completely familiar with America National Standards Institute (ANSI) is is. In the course of teaching the CISSP Certification Domain 1 to 8 Training Video with All topics on the slopes of 1 to 8 this document are familiar.
Views: 18401 MF Prod
Theory and Practice of Cryptography
 
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Google Tech Talks December, 19 2007 Topics include: Introduction to Modern Cryptography, Using Cryptography in Practice and at Google, Proofs of Security and Security Definitions and A Special Topic in Cryptography This talk is one in a series hosted by Google University: Wednesdays, 11/28/07 - 12/19/07 from 1-2pm Speaker: Steve Weis Steve Weis received his PhD from the Cryptography and Information Security group at MIT, where he was advised by Ron Rivest. He is a member of Google's Applied Security (AppSec) team and is the technical lead for Google's internal cryptographic library, KeyMaster.
Views: 70338 GoogleTechTalks
9. Securing Web Applications
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: James Mickens In this lecture, Professor Mickens continues looking at how to build secure web applications. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 37621 MIT OpenCourseWare
R11. Cryptography: More Primitives
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Ling Ren In this recitation, problems related to cryptography are discussed. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 3836 MIT OpenCourseWare
Cyber Security Threats: Is your company prepared?  – MIT Professional Education
 
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Cybercrimes and attacks cost over $400 billion per year, and aren’t discovered until an average of 243 days later. Vulnerable companies can lose millions of dollars, and personal information leaked leaves millions of people victims of online identity theft. As more companies move their information to digital documents and cyberattacks continue to increase, cybersecurity becomes an important part of every organization. Protect your business, your data, and your customers, and defend yourself against cyberattacks by understanding cybersecurity and the threats faced by companies every day. Join MIT Professional Education for Cybesecurity. Cybercrimes can ruin businesses both financially and through reputation. It takes years to achieve success and seconds to destroy it. Don’t wait until it’s too late to protect your business. This course will be taught by a team of world-renowned security experts in hardware, software, cryptography, and policy from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL). Each module of the course will introduce not only technology impacting a broad range of cybersecurity challenges, but also the most recent developments in research. Check out more about Cybersecurity and register at: https://mitprofessionalx.mit.edu/courses/course-v1:MITProfessionalX+CSx+2015_T1/about
Views: 3759 MITProfessionalEd
IOHK | Ouroboros Genesis: A Provably Secure Proof-of-Stake Blockchain Protocol
 
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Ouroboros Genesis - New research for Cardano We’re very proud to announce Ouroboros Genesis, a new paper from the IOHK research team. This latest version of Ouroboros, the algorithm powering Cardano, is a step forward in the cryptography that powers cryptocurrency systems. In this video, filmed at the IOHK blockchain technology lab at the University of Edinburgh, Professor Kiayias explains the research. For the first time, new users joining the blockchain can bootstrap from the genesis block, and do not need a checkpoint block or any prior knowledge of the number of users active in the system. This feature was previously not possible in proof of stake distributed ledgers while it was a hallmark of proof-of-work protocols. This means that Ouroboros can now match the security guarantees of proof-of-work protocols like Bitcoin in a way that was previously thought infeasible. This advancement is the culmination of a research path that systematically tackled challenges in proof of stake, beginning with Ouroboros, progressing to Ouroboros Praos, and now reaching Ouroboros Genesis. The Ouroboros research, led by Professor Aggelos Kiayias, IOHK Chief Scientist, has been developed with a rigorous discipline. Ouroboros was peer reviewed by the leading cryptography conference, Crypto 2017, and Ouroboros Praos is similarly due to be presented at sister event Eurocrypt 2018 next week. The research is being progressively implemented in Cardano. Read the research paper "Composable Proof-of-Stake Blockchains with Dynamic Availability" here: https://iohk.io/research/papers/#AQZE2XCV Ouroboros | IACR Crypto-2017 https://youtu.be/NlmD8W8cEoA IOHK | Developing a secure proof of stake algorithm https://youtu.be/a6G3M2ZQEXc -- https://iohk.io/team/aggelos-kiayias/ Prof Aggelos Kiayias is the Chair in Cyber Security and Privacy at the University of Edinburgh. His research interests are in computer security, information security, applied cryptography and foundations of cryptography with a particular emphasis in blockchain technologies and distributed systems, e-voting and secure multiparty protocols as well as privacy and identity management. He joins IOHK as chief scientist through a long-term consulting agreement between IOHK and the University of Edinburgh, UK, where he is based and continues to do research and teach courses in cyber security and cryptography. Prof Kiayias is also Professor in Residence (gratis) at the University of Connecticut, USA, and Associate Professor of Cryptography and Security (on leave) at the National and Kapodistrian University of Athens, Greece. Prof Kiayias’s cyber security research over the years has been funded by the Horizon 2020 programme (EU), the European Research Council (EU), the General Secretariat for Research and Technology (Greece), the National Science Foundation (USA), the Department of Homeland Security (USA), and the National Institute of Standards and Technology (USA). He has received an ERC Starting Grant, a Marie Curie fellowship, an NSF Career Award, and a Fulbright Fellowship. He holds a Ph.D. from the City University of New York and he is a graduate of the Department of Mathematics at the University of Athens. He has more than 100 publications in journals and conference proceedings in the area. -- Input Output See more at: https://iohk.io Get our latest news updates: https://iohk.io/blog/ Meet the team: https://iohk.io/team/ Learn about our projects: https://iohk.io/projects/cardano/ Read our papers: http://iohk.link/paper-ouroboros Visit our library: https://iohk.io/research/library/ In the press: https://iohk.io/press/ Work with us: https://iohk.io/careers/
Views: 17887 IOHK
Details of Elliptic Curve Cryptography | Part 9 Cryptography Crashcourse
 
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Crashcourse Playlist: https://www.youtube.com/playlist?list=PLjwO-iVuY1v1kxWtOsqKEuXDB4ijXSHIk Book: Understanding Cryptography https://www.amazon.com/Understanding-Cryptography-Textbook-Students-Practitioners/dp/3642041000/ref=as_li_ss_tl?ie=UTF8&qid=1541146284&sr=8-1&keywords=Understanding+Cryptography:+A+Textbook+for+Students+and+Practitioners&linkCode=sl1&tag=julianhosp-20&linkId=8e14aad9056003d3eefcacb57c2e0b73&language=en_US ---------- New to cryptocurrencies? You might want to read this book first! http://cryptofit.community/cryptobook If you liked the video, subscribe to my channel, give a "thumbs up" and share this video to make the world together #cryptofit :) ► Subscribe: https://www.youtube.com/channel/UCseN... ► Cryptocurrency Exchange: https://www.binance.com/?ref=11272739 ► Hardware Wallet: http://www.julianhosp.com/hardwallet ► Ruben's Trinkgeld Adressen: Bitcoin: 3MNWaot64Fr1gRGxv4YzHCKAcoYTLXKxbc Litecoin: MTaGwg5EhKooonoVjDktroiLqQF6Rvn8uE --------------- ► Completely NEW? What is Blockchain, Bitcoin and Co? Get this book from me: https://www.amazon.com/Cryptocurrenci... ► Join our Facebook group: https://www.facebook.com/groups/crypt... ► iTunes Podcast: https://itunes.apple.com/sg/podcast/t... ► My website: http://www.julianhosp.com ---------------- My name is Dr. Julian Hosp or just Julian. My videos are about Bitcoin, Ethereum, Blockchain and crypto currencies in general, to avoid scam, rip-off and fraud especially in mining. I'm talking about how you can invest wisely and do it rationally and simply. My ultimate goal is to make people all around the world #CRYPTOFIT. I.E fit for this new wave of decentralization and blockchain. Have fun! ► Follow me here and stay in touch: Facebook: www.facebook.com/julianhosp/ Twitter: https://twitter.com/julianhosp Instagram: https://www.instagram.com/julianhosp/ Linkedin: https://www.linkedin.com/julianhosp
Views: 2558 Dr. Julian Hosp
Introduction to Number Theory
 
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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: 50894 nptelhrd
How secure is 256 bit security?
 
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Supplement to the cryptocurrency video: How hard is it to find a 256-bit hash just by guessing and checking? What kind of computer would that take? Cryptocurrency video: https://youtu.be/bBC-nXj3Ng4 Home page: https://www.3blue1brown.com/ Several people have commented about how 2^256 would be the maximum number of attempts, not the average. This depends on the thing being attempted. If it's guessing a private key, you are correct, but for something like guessing which input to a hash function gives the desired output (as in bitcoin mining, for example), which is the kind of thing I had in mind here, 2^256 would indeed be the average number of attempts needed, at least for a true cryptographic hash function. Think of rolling a die until you get a 6, how many rolls do you need to make, on average? 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: 1058371 3Blue1Brown
what is cryptography and network security
 
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It is a mono-alphabetic cipher wherein each letter of the plaintext is substituted by another letter to form the ciphertext. It is a simplest form of substitution cipher scheme Modern cryptography uses sophisticated mathematical equations (algorithms) and secret keys to encrypt and decrypt data. Today, cryptography is used to provide secrecy and integrity to our data, and both authentication and anonymity to our communications. Network security attacks and services https://youtu.be/-ZHWhaLInik What is network security explained in minutes https://youtu.be/vqavFou2oxk Predefined functions in PHP https://youtu.be/ewmWqm2H-AA Cryptography or cryptology (from Greek κρυπτός kryptós, "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively[1]) is the practice and study of techniques for secure communication in the presence of third parties called adversaries.[2] More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages;[3] various aspects in information security such as data confidentiality, data integrity, authentication, and non-repudiation[4] are central to modern cryptography. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, electrical engineering, communication science, and physics. Applications of cryptography include electronic commerce, chip-based payment cards, digital currencies, computer passwords, and military communications. Cryptography prior to the modern age was effectively synonymous with encryption, the conversion of information from a readable state to apparent nonsense. The originator of an encrypted message shared the decoding technique needed to recover the original information only with intended recipients, thereby precluding unwanted persons from doing the same. The cryptography literature often uses the name Alice ("A") for the sender, Bob ("B") for the intended recipient, and Eve ("eavesdropper") for the adversary.[5] Since the development of rotor cipher machines in World War I and the advent of computers in World War II, the methods used to carry out cryptology have become increasingly complex and its application more widespread. Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in practice by any adversary. It is theoretically possible to break such a system, but it is infeasible to do so by any known practical means. These schemes are therefore termed computationally secure; theoretical advances, e.g., improvements in integer factorization algorithms, and faster computing technology require these solutions to be continually adapted. There exist information-theoretically secure schemes that probably cannot be broken even with unlimited computing power—an example is the one-time pad—but these schemes are more difficult to implement than the best theoretically breakable but computationally secure mechanisms. The growth of cryptographic technology has raised a number of legal issues in the information age. Cryptography's potential for use as a tool for espionage and sedition has led many governments to classify it as a weapon and to limit or even prohibit its use and export.[6] In some jurisdictions where the use of cryptography is legal, laws permit investigators to compel the disclosure of encryption keys for documents relevant to an investigation.[7][8] Cryptography also plays a major role in digital rights management and copyright infringement of digital media.[9] -~-~~-~~~-~~-~- Please watch: "How to buy a domain name from GoDaddy 2019" https://www.youtube.com/watch?v=ULV2vE1Ptio How to make a calling app in android https://www.youtube.com/watch?v=8VHRLWDmaHo How to create drawing android app in mit app inventor 2 https://www.youtube.com/watch?v=FimKlZH6Lkg How to make android calculator app using mit app https://www.youtube.com/watch?v=W39tJVxbvSM How to upload android app in google play store https://www.youtube.com/watch?v=KIPf9pBi89k how to create camera app in mit app inventor 2 https://www.youtube.com/watch?v=o-bYys8v9g4 How to create first android app in mit app inventor https://www.youtube.com/watch?v=pZWdFEzCZP0 -~-~~-~~~-~~-~-
Views: 459 The Coding Bus
Theory and Practice of Cryptography
 
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Google Tech Talks Topics include: Introduction to Modern Cryptography, Using Cryptography in Practice and at Google, Proofs of Security and Security Definitions and A Special Topic in Cryptography This talk is one in a series hosted by Google University: Wednesdays, 11/28/07 - 12/19/07 from 1-2pm Speaker: Steve Weis Steve Weis received his PhD from the Cryptography and Information Security group at MIT, where he was advised by Ron Rivest. He is a member of Google's Applied Security (AppSec) team and is the technical lead for Google's internal cryptographic library, KeyMaster.
Views: 41203 GoogleTechTalks
CISSP DOMAIN 1   SECURITY AND RISK MANAGEMENT part 1/4
 
01:05:09
CISSP certification is the world’s most valuable documents in the field of information This document is provided by ICS 2. CISSP course with ten primary domain that exists in the field of security are deeply familiar. After passing the CISSP people can determine an organization’s security policies and play an important role in its implementation. CISSP course based design approach and strategy of an organization is huge. Therefore people who want this course has to have at least three years of work experience in the field of security and content of courses such as ECSA, CHFI, CEH CISSP certified . You will start by learning about the CISSP Domain 1 security concepts and governance, including policies, compliance, and ethics. From there, we will teach you about risk management and personal security, including fraud prevention and detection, monitoring and enforcement, and termination. This video tutorial will also cover security awareness training. Table of Contents : 1. Security Governance 2. The Security Program 3. Policies 4. Control Frameworks 5. Compliance 6. Privacy And Legal Systems 7. Common Legal System And Export Controls 8. Trans-Border Information Flow 9. Intellectual Property Protection 10. DRM, IRM, And Licensing 11. Piracy And PCI DSS 12. Auditing, Reporting, And Metrics 13. Ethics 14. Cybercrime 15. Cybercrime Attackers 16. Prosecuting Cybercrime And Third Party Governance
Views: 121893 MF Prod
Introduction to Ethical Hacking: Computer Security Lectures 2014/15 S2
 
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This video is part of the computer/information/cyber security and ethical hacking lecture series; by Z. Cliffe Schreuders at Leeds Beckett University. Laboratory work sheets, slides, and other open educational resources are available at http://z.cliffe.schreuders.org. The slides themselves are creative commons licensed CC-BY-SA, and images used are licensed as individually attributed. Topics covered in this lecture include: What is ethical hacking? In short, legal “hacking”. Legal attempts to compromise security A part of security testing What do ethical hackers do? Types of security audits From purely theoretical analysis to hands-on attempts at intrusion The type of testing employed will depend on: The aims of the organisation / department Required thoroughness Compliance / legal requirements Before conducting testing Contracts should be signed The auditors need to know: Scope: assets they are allowed to attack, depth of attack (is it a high-level policy audit, or a hands-on penetration test?) The scheduled time for operations (off-peak?) Whether the organisation's IT staff will be informed of the testing Tester's knowledge White box: tester has access to information about the target's network infrastructure Black box: tester is not given any information about the target's network infrastructure Grey box: somewhere in between IT department's knowledge Tandem (white box): IT and attackers are well prepared, and informed Reversal (white box): Attackers have information about the organisation, but the IT department is not informed of the testing Blind (black box): IT knows what is happening, attackers have no special advance knowledge Double blind (black box): both parties are in the dark Channels Human (social engineering) Physical Network (Internet, Wi-Fi, and so on) Merits of approaches Thoroughness is important You cannot compare the results from different types of tests Penetration testing involves a hands-on intrusion attempt Conduct: Log all activities Act within scope Assets, time-frame Security Audit Output The primary output of a penetration test security audit is a report, detailing: The types of flaws that were investigated What was found Recommended mitigation strategies Methodology Typically the pen-testers follow a methodology, to ensure all relevant areas are covered Formal methodologies and compliance Such as Open Source Security Testing Methodology Manual (OSSTMM) Typical steps taken by an attacker (malicious or ethical): Information gathering Reconnaissance (AKA footprinting) Scanning Exploitation Gaining access Post-exploitation Maintaining access Covering tracks Reconnaissance, AKA footprinting, involves collecting information about the organisation under attack Aims to discover as much as possible, usually using non-invasive techniques that do not require any special authority Can be passive (listening) or active (requesting information) DNS Whois Job adverts Traceroute Dumpster diving Social engineering Scanning Scanning builds knowledge on what has been discovered via footprinting, by actively querying hosts Identity platforms, services, user account names, and so on Understand the attack surface and ready for attempts at attack Ping sweeps War dialling Port scanning / network scanning Banner grabbing Enumeration Computer names, usernames, shares Acquiring access Actual attack of the target Involves exploiting a discovered vulnerability, performing some form of privilege elevation, or denial of service The attacker exploits a vulnerability to gain access to privileges that they are not authorised to perform Perhaps access to someone else's account, a superuser account, or modifying or reading data Attacks may target design, implementation, or misconfiguration flaws For example: Password cracking Buffer overflows Command injection Social engineering Maintaining access Discovering login credentials, and/or installing backdoors for later access May involve: Monitoring local network traffic for passwords, or using keyloggers to record keystrokes Cracking hashed passwords Installing rootkits and Trojan horses (A rootkit is malware that hides its presence from OS tools) Creating new accounts for later access Covering tracks Attackers often attempt to remove or hide evidence that an attack has occurred They may: Delete log files or entries Hide their own tools using rootkits, steganography (hiding data within other data), or other OS methods of hiding data, such as hidden files and alternative data streams (ADS) Thinking like an attacker - Bruce Schneier
Views: 3010 Z. Cliffe Schreuders
CSE571-11-00: Network Security Course Overview
 
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Audio/Video Recording of Professor Raj Jain's class lecture on CSE 571S: Network Security. It covers Internet Security Issues, SPAM, Cyber Warfare, Web Security Statistics 2010, Goal of This Course, Prerequisites, Prerequisites, Text Book, Tentative Schedule, Grading, Projects, Sample Survey Paper Topics, Project Schedule, Office Hours,Frequently Asked Questions, Security Lab Computer Sharing Rules
Views: 58306 Raj Jain
Lec 21 | MIT 6.033 Computer System Engineering, Spring 2005
 
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Security Introduction View the complete course at: http://ocw.mit.edu/6-033S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 15322 MIT OpenCourseWare
Stanford Certificate - Cyber Security
 
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Preview the online graduate certificate: Cyber Security Info: http://stanford.io/1TPcKYD The Cyber Security graduate certificate provides a professional, technical and policy view of the challenges created by rapid advancements in information technology. You'll examine principles of computer systems security, including attack protection and prevention. By combining computer science and application, this program's interdisciplinary approach will give you the vital skills needed for today's cyber workforce.
Views: 7290 stanfordonline
An Introduction to Elliptic Curve Cryptography
 
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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: 31159 nptelhrd
Inverse Using Fermat's Little Theorem | Modulo Arithmatic | Cryptography And Network Security |
 
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In this youtube channel we are going to teach you the basic concepts of Cryptography and Network Security. In this video we have discussed about how to find Inverse using Fermant's Little Theorem. Visit Our Channel :- https://www.youtube.com/channel/UCxik... Programming Interview, Software Interview, Data Structure, Algorithm, modular multiplicative inverse, multiplicative inverse, modular arithmetic, fermats theorem, euler's totient, Euler's Totient Function, Fermat's Little Theorem, Modular Multiplicative Inverse | Fermat's Theorem | Euler's Totient, yt:crop=16:11, Follow Smit Kadvani on :- Facebook :- https://www.facebook.com/smit.kadvani Instagram :- https://www.instagram.com/the_smit0507 Follow Dhruvan Tanna on :- Facebook :- https://www.facebook.com/dhruvan.tanna1 Instagram :- https://www.instagram.com/dhru1_tanna Follow Keyur Thakkar on :- Facebook :- https://www.facebook.com/keyur.thakka... Instagram :- https://www.instagram.com/keyur_1982 Snapchat :- keyur1610 Follow Ankit Soni on:- Instagram :- https://www.instagram.com/ankit_soni1511
Views: 11592 Quick Trixx
CS707_Lecture01
 
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CS707 Network Security
Views: 18800 vu
Economics of Cybersecurity | DelftX on edX | Professional Education | Course About Video
 
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Enroll in Economics of Cybersecurity from DelftX at https://www.edx.org/course/economics-cybersecurity-delftx-econsec101x Economics of Cybersecurity Learn how to measure the costs and assess the importance of securing your business from cyber threats. About this Course With a significant increase in high-profile data breaches and cybersecurity threats in the last couple years, it is critical for businesses to learn about the costs and investment decisions around securing their online systems. If you make decisions around IT investments in your job or are interested in learning more about securing your business, this course is for you. While many businesses think of cybersecurity as a technical problem, this course broadens that view and shows that security failures are caused as often by bad business decisions and incentive systems as by bad technical design. This course provides an introduction to the field of the economics behind cybersecurity, delivered by four leading research teams from distinguished universities around the world, including: Michel van Eeten of Delft University of Technology in The Netherlands Ross Anderson of Cambridge University in the United Kingdom Rainer Boehme of University of Münster in Germany Carlos H.Gañán of Delft University of Technology in The Netherlands Tyler Moore of Southern Methodist University in the USA It will provide you with the economic concepts, measurement approaches and data analytics to make better security decisions, while helping you to understand the forces that shape the security decisions of other businesses, products and services. This course will: Teach you to make choices on investing in your company’s cybersecurity. We discuss and apply different economic models that help determine the costs and benefits of security investments. Arm you with research to make strategic business decisions. We review empirical research into security decisions and incentives of actors. We analyze data on firms in different markets, and apply economic concepts to explain the strategies of attackers. Review policy and regulations. We discuss available economic tools to better align the incentives for cybersecurity, including better security metrics, cyber insurance/risk transfer, information sharing, and liability assignment. This course offers a broad view of the field through lectures and exercises that can apply to both early career professionals as well as senior technical managers. After finishing this course you will be able to apply economic analysis and data analytics. You will understand the role played by incentives on the adoption and effectiveness of security mechanisms, and on the design of technical, market-based, and regulatory solutions to different security threats. After successfully completing this course, you will: Position yourself as a vital subject matter expert regarding the economic drivers that influence cybersecurity and position your company to move forward and stay competitive. Engage confidently with management on opportunities and cybersecurity challenges faced by your industry; analyze emerging security threats and how these threats can be mitigated by effectively addressing real economic problems. Learn and assess the issues of investment in cybersecurity, making your company more productive, while saving time and money. Upon successful completion of this course, learners will be awarded a DelftX Professional Education Certificate. The TU Delft Extension School offers Continuing Education Units for this course. Participants of EconSec101x who successfully complete the course requirements will earn a Certificate of Completion and are eligible to receive 2.0 Continuing Education Units (2.0 CEUs). PDF of the Syllabus
Views: 3639 edX
Lecture 9: Modes of Operation for Block Ciphers by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Lecture 12 — History of Cryptocurrencies [Bonus lecture]
 
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Bonus lecture by Jeremy Clark due to popular interest. For the accompanying textbook, including the free draft version, see: http://bitcoinbook.cs.princeton.edu/
Proofs in Cryptography: Lecture 11 Random Oracle Model ROM
 
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Proofs in Cryptography Lecture 11 Random Oracle Model ROM ALPTEKİN KÜPÇÜ Assistant Professor of Computer Science and Engineering Koç University http://crypto.ku.edu.tr
Views: 3157 KOLT KU
Data Science in Cyber-Security and Related Statistical Challenges
 
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Data science techniques have an important role to play in the next generation of cyber-security defenses. Inside a typical enterprise computer network, a number of high-volume data sources are available which could enable the discovery and prevention of cyber-attacks and any other nefarious network activity. At Imperial, our interests are in developing statistical, probability model-based techniques for identifying subtle intrusion attempts using these data sources. This talk will present two examples in anomaly detection, analyzing authentication logs and network flow records. Relatively simple statistical models will be considered in both cases; the methodological focus will be placed on combining weak signals and reducing false positive detections in changepoint analysis. See more at https://www.microsoft.com/en-us/research/video/data-science-in-cyber-security-and-related-statistical-challenges/
Views: 1875 Microsoft Research
Introduction to Data Compression & Encryption.
 
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Data- Text, audio,image, video. Compression- reducing the size of data. Encryption- making the data secret. (sometimes data, in general, is referred to as text) Stay tuned for more lectures on DCE. If you have liked the video, Please ********** LIKE, SUBSCRIBE, COMMENT & SHARE***************
Views: 282 Clear Concepts
Network Security Fundamentals
 
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eLearning - 23 Jan 2013
Views: 101104 APNIC Training
Security and Privacy in Named-Data Networking Gene Tsudik Technion lecture 1
 
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Prof. Gene Tsudik or University of California, Irvine at Technion Security and Privacy in Named-Data Networking With the growing realization that current Internet protocols are reaching the limits of their senescence, a number of on-going research efforts aim to design potential next-generation Internet architectures. Although they vary in maturity and scope, in order to avoid past pitfalls, these efforts seek to treat security and privacy as key initial requirements. The Named Data Networking (NDN) is an Internet architecture that avoids IP's host-based, point-to-point networking approach in order to better accommodate new and emerging patterns of communication. NDN treats data as a first class object, explicitly naming it instead of its location. While the current Internet secures the "pipe" that carries data between hosts, NDN secures data — a design choice that decouples trust in data from trust in hosts, enabling scalable communication mechanisms, such as automatic caching of data in routers to optimize bandwidth. The NDN project poses numerous technical challenges that must be addressed to validate it as a future Internet architecture: routing scalability, fast forwarding, trust models, network security, content protection and privacy, and fundamental communication theory. This talk will overview NDN and then turn to security and privacy issues. By stressing content dissemination, NDN is an attractive and viable approach to many types of current and emerging communication models. It also incorporates some useful security and privacy features. We will first consider communication privacy and anonymity in NDN and describe an NDN add-on (called ANDANA) that offers the functionality similar to TOR on today's Internet. Since resilience to Denial of Service (DoS) attacks that plague today's Internet is a major issue for any new architecture, we will discuss some initial research towards assessment and mitigation of DoS in NDN. Next, we will consider privacy implications of router-side content caching. Finally, we will discuss how to adapt NDN and its security features to environments other than content distribution, using the example of building automation.
Views: 4583 Technion