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Network Security - One Time Pad & Quantum Key Distribution
 
10:15
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 439 intrigano
The one-time pad | Journey into cryptography | Computer Science | Khan Academy
 
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The perfect cipher Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/frequency-stability?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/polyalphabetic-cipher?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information). About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Computer Science channel: https://www.youtube.com/channel/UC8uHgAVBOy5h1fDsjQghWCw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 423602 Khan Academy
What is QUANTUM KEY DISTRIBUTION? What does QUANTUM KEY DISTRIBUTION mean?
 
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What is QUANTUM KEY DISTRIBUTION? What does QUANTUM KEY DISTRIBUTION mean? QUANTUM KEY DISTRIBUTION meaning - QUANTUM KEY DISTRIBUTION definition - QUANTUM KEY DISTRIBUTION 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 Quantum key distribution (QKD) uses quantum mechanics to guarantee secure communication. It enables two parties to produce a shared random secret key known only to them, which can then be used to encrypt and decrypt messages. It is often incorrectly called quantum cryptography, as it is the best-known example of a quantum cryptographic task. An important and unique property of quantum key distribution is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. This results from a fundamental aspect of quantum mechanics: the process of measuring a quantum system in general disturbs the system. A third party trying to eavesdrop on the key must in some way measure it, thus introducing detectable anomalies. By using quantum superpositions or quantum entanglement and transmitting information in quantum states, a communication system can be implemented that detects eavesdropping. If the level of eavesdropping is below a certain threshold, a key can be produced that is guaranteed to be secure (i.e. the eavesdropper has no information about it), otherwise no secure key is possible and communication is aborted. The security of encryption that uses quantum key distribution relies on the foundations of quantum mechanics, in contrast to traditional public key cryptography, which relies on the computational difficulty of certain mathematical functions, and cannot provide any mathematical proof as to the actual complexity of reversing the one-way functions used. QKD has provable security based on information theory, and forward secrecy. Quantum key distribution is only used to produce and distribute a key, not to transmit any message data. This key can then be used with any chosen encryption algorithm to encrypt (and decrypt) a message, which can then be transmitted over a standard communication channel. The algorithm most commonly associated with QKD is the one-time pad, as it is provably secure when used with a secret, random key. In real-world situations, it is often also used with encryption using symmetric key algorithms like the Advanced Encryption Standard algorithm.
Views: 277 The Audiopedia
Quantum Cryptography Explained
 
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This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl With recent high-profile security decryption cases, encryption is more important than ever. Much of your browser usage and your smartphone data is encrypted. But what does that process actually entail? And when computers get smarter and faster due to advances in quantum physics, how will encryption keep up? http://physicsgirl.org/ ‪http://twitter.com/thephysicsgirl ‪http://facebook.com/thephysicsgirl ‪http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator/Editor: Dianna Cowern Writer: Sophia Chen Animator: Kyle Norby Special thanks to Nathan Lysne Source: http://gva.noekeon.org/QCandSKD/QCand... http://physicsworld.com/cws/article/n... https://epic.org/crypto/export_contro... http://fas.org/irp/offdocs/eo_crypt_9... Music: APM and YouTube
Views: 275963 Physics Girl
Introduction to Quantum Cryptography and the Tokyo QKD Network
 
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Quantum cryptography、consisting of quantum key distribution (QKD) and one-time pad encryption, allows for communication with unconditional security. In QKD systems, the senders encode information on single photons one by one, while the receivers measure the photon states and decode the information. By distilling possible eavesdropped bits, secure keys can be shared between the senders and receivers. Tokyo QKD Network, into which various quantum key distribution systems were integrated through cross platform, established upon NICT's test bed ("JGN2plus"). We have succeeded in the key-relay and the rerouting experiment using Tokyo QKD Network.
Views: 12674 NICTchannel
Encryption Technique : One time Pad with example
 
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Classical Encryption Technique One time Pad GTU SEM 6 Information Security CSE /IT
Views: 26783 Dhruvin Shah
An Unbreakable Cypher: The One Time Pad - Part One
 
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Part one of my short series on the so-caled One Time Pad, a potentially unbreakable method of encryption. This video covers the history of this kind of cryptography, and features me talking and providing examples. Part two will cover how to create your own unbreakable cypher using commonly available materials, and without a computer or even electricity. This was inspired by Simon Singh's excellent Code Book: http://simonsingh.net/books/the-code-book/ He is a writer of science books and was successful in defending academic and press freedom from legal attack by alternative therapists: http://simonsingh.net/media/articles/libel-reform/ http://www.senseaboutscience.org This is only a very small section of the history of cryptography, more detailed (and better communicated) information can be found in Simon Singh's book and website and places such as Wikipedia, which is a good starting point: https://en.wikipedia.org/wiki/Cryptography Video and still my own except were stated. music from here: http://incompetech.com Filmed with a Nikon D610, 55mm AI-S Micro and 24-85mm AF-S © Thomas Hayes 2016 (excepting content otherwise licenced)
Views: 843 tombo1bo
How to establish an encryption key securely with the Quantum Key Distribution scheme ?
 
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BB84 protocol is a quantum key distribution scheme developed by Charles Bennett and Gilles Brassard in 1984. It is the first quantum cryptography protocol. The protocol is provably secure, relying on the quantum property that information gain is only possible at the expense of disturbing the signal if the two states one is trying to distinguish are not orthogonal. It is a method of securely communicating a private key from one party to another for use in one-time pad encryption. So how to establish a random encryption key securely with the Quantum Key Distribution scheme ? Alice creates a random bit of 0 or 1 and then randomly selects one of her two bases (rectilinear or diagonal) to transmit it in. She then prepares a photon polarization state depending both on the bit value and basis. So for example a 0 is encoded in the rectilinear basis (+) as a vertical polarization state, and a 1 is encoded in the diagonal basis (x) as a 135° state. Alice then transmits a single photon in the state specified to Bob, using a quantum channel. This process is then repeated from the random bit stage, with Alice recording the state, basis and time of each photon sent. As Bob does not know the basis the photons were encoded in, all he can do is to select a basis at random to measure in, either rectilinear or diagonal. He does this for each photon he receives, recording the time, measurement basis used and measurement result. After Bob has measured all the photons, he communicates with Alice over the public classical channel. Alice broadcasts the basis each photon was sent in, and Bob the basis each was measured in. They both discard photon measurements (bits) where Bob used a different basis, which is half on average, leaving half the bits as a shared key. Quantum key distribution is only used to produce and distribute a key, not to transmit any message data. This key can then be used with the one-time pad cipher with a secret random key. This video was downloaded and edited from Quantum cryptography, animated by Centre for Quantum Technologies @ https://www.youtube.com/watch?v=LaLzshIosDk
Views: 1040 satnamo
Secure communication using the one-time pad | QuTech Academy
 
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Video: Secure communication using the one-time pad Do you want to learn more about the building blocks of a Quantum Computer? View the complete course at: https://www.edx.org/course/the-building-blocks-of-a-quantum-computer-part-2 More courses at http://qutech.nl/edu/
Views: 35 QuTech Academy
Quantum Cryptography Lecture
 
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Quantum laser pointers brings you the infamous double slit experiment right in the palm of your hand. In 1801 English physicist Thomas Young performed this experiment to determine if light was a particle or a wave. A laser shines a coherent beam of light through a film disc containing two parallel slits. Light striking the wall behind the slits producers a classic interference pattern. This surprising result means light passes through the parallel slits not as particles but as waves. When the peaks of two waves overlap it creates a band of light. When the peak of one wave meets the valley of another, light is cancelled out. Variations of this experiment spurred public debates between Albert Einstein and Neils Bohr on the true nature of reality. It’s been called the granddaddy of all quantum weirdness. This convenient and affordable double slit laser was designed for personal enjoyment and education.
Uncrackable Pen & Paper Cryptography
 
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Why there is always a safe place for PEOPLE to communicate. P.S. 1. Yes, this is just a "one time pad", and using each key only once is crucial. 2. Yes, this is uncrackable. Without the key you cannot get the message. Brute force does not work as it gives all possible messages and does not say which is the one being sent. 3. Yes, random numbers do exist, but for this a pair of dice is more than adequate.
Views: 3270 RevK
quantum cryptography
 
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Introduction to the Quantum Cryptography lab
Views: 5059 Paul Francis
A Fascinating Story of a One-Time Pad | Breakthrough Junior Challenge 2018
 
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This video tells you the story of a one-time pad (OTP) - the only proven absolutely unbreakable cipher. Known for a long time and extensively used in top-secret military and diplomatic communications, one-time pad ciphering became the main algorithm for quantum key distribution (QKD) - the future of modern cryptography. #breakthroughjuniorchallenge
Introduction to quantum cryptography - Vadim Makarov
 
01:31:29
I introduce the basic principles of quantum cryptography, and discuss today's status of its technology, with examples of optical schemes and components. No prior knowledge of quantum mechanics. Quantum cryptography、consisting of quantum key distribution (QKD) and one-time pad encryption, allows for communication with unconditional security. In QKD systems, the senders encode information. Documentary, All our videos for just education. Subscribe our channel and facebook page to watch our new uploads: Thanks.
Views: 13 Janine Benson
Cryptography, Perfect Secrecy and One Time Pads | Two Minute Papers #25
 
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Cryptography helps us to communicate securely with someone in the presence of third parties. We use this when we do for instance, online banking or even as mundane tasks as reading our gmail. In this episode, we review some cipher techniques such as the Caesar cipher, rot13, and as we find out how easy they are to break, we transition to the only known technique to yield perfect secrecy: one time pads. Are they practical enough for everyday use? How do our findings relate to extraterrestrial communications? Both questions get answered in the video. Additional comment: "In modern certification cryptanalysis, if a cipher output can be distinguished from a PRF (pseudo random functions), it's enough to deem it broken." - Source: https://twitter.com/cryptoland/status/666721478675668993 ______________________ The paper "Cipher printing telegraph systems: For secret wire and radio telegraphic communications" is available here: http://math.boisestate.edu/~liljanab/Math509Spring10/vernam.pdf You can try encrypting your own messages on these websites: http://practicalcryptography.com/ciphers/caesar-cipher/ http://rot13.com/index.php http://www.braingle.com/brainteasers/codes/onetimepad.php Subscribe if you would like to see more of these! - http://www.youtube.com/subscription_center?add_user=keeroyz The thumbnail background was created by Adam Foster (CC BY 2.0) - https://flic.kr/p/b99vsi Splash screen/thumbnail design: Felícia Fehér - http://felicia.hu Károly Zsolnai-Fehér's links: Patreon → https://www.patreon.com/TwoMinutePapers Facebook → https://www.facebook.com/TwoMinutePapers/ Twitter → https://twitter.com/karoly_zsolnai Web → https://cg.tuwien.ac.at/~zsolnai/
Views: 10471 Two Minute Papers
Quantum cryptography: basics and technology with Vadim Makarov
 
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This is a basic introduction into quantum key distribution technology, accessible to undergraduate students and above. The lecture explains society's need for this technology, how quantum cryptography works, shows today's commercial and research hardware, and touches on the question of hacking attacks against it. Download presentation slides: PowerPoint (63 MiB, with videos and animations) http://www.vad1.com/lab/presentations/Makarov-20140930-UWaterloo-phys10-undergrad-seminar.pptx PDF (6.8 MiB, static images only) http://www.vad1.com/lab/presentations/Makarov-20140930-UWaterloo-phys10-undergrad-seminar.pdf This lecture was given at University of Waterloo undergraduate physics seminar (Phys10) on September 30th, 2014. If you are more interested in quantum cryptography technology and have more time, consider watching a longer lecture series by Vadim Makarov: https://www.youtube.com/watch?v=ToOLbdrWst4 Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Introduction to Quantum Cryptography 2014
 
01:45:04
I introduce the basic principles of quantum cryptography, and discuss today's status of its technology, with examples of optical schemes and components. No prior knowledge of quantum mechanics. Documentary, All our videos for just education. Subscribe our channel and facebook page to watch our new uploads: Thanks. Quantum cryptography、consisting of quantum key distribution (QKD) and one-time pad encryption, allows for communication with unconditional security. In QKD systems, the senders encode information.
Views: 3 Willie Calhoun
CRYPTOEX (unbreakable cryptography using one time pad)
 
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This video is to represent the new cryptography that is truly unbreakable. The cryptography engine is Ready now.
Views: 62 Crypto Ex
Lecture 3: Stream Ciphers, Random Numbers and the One Time Pad by Christof Paar
 
01:29:39
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Otp And Quantum Crypto - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 724 Udacity
TY BSc-IT - NS Unit 1 - Lec 6 - Vigenère , Beaufort , One Time Pad,  Playfair
 
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The point discussed in this lecture:- 1. Polyalphabetic Cipher Types A. Vigenère Cipher B. Beaufort Cipher C. One Time Pad Cipher D. Playfair Cipher Download notes from here:- https://drive.google.com/open?id=0B_0qcYrYEFTBTWN2U3V3NGNhbGc All other material by me @ this link:- https://drive.google.com/open?id=0B_0qcYrYEFTBWjVtbS0ydjJ1REU
Views: 431 Tirup Parmar
Quantum Encryption Explained
 
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This video explains what is quantum entanglement and how does it work. Enjoy!
Views: 8272 Daniel Liu
Learning the One Time Pad algorithm with Chosen Plaintext Attack Adversarial Neural Cryptography
 
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Talk by Murilo Coutinho Silva, presented at Eurocrypt 2017 Rump Session.
Views: 309 TheIACR
How to establish a random encryption key securely with the  Quantum Key Distribution scheme ?
 
07:48
BB84 protocol is a quantum key distribution scheme developed by Charles Bennett and Gilles Brassard in 1984. It is the first quantum cryptography protocol. The protocol is provably secure, relying on the quantum property that information gain is only possible at the expense of disturbing the signal if the two states one is trying to distinguish are not orthogonal (see no-cloning theorem). It is usually explained as a method of securely communicating a private key from one party to another for use in one-time pad encryption. Alice creates a random bit of 0 or 1 and then randomly selects one of her two bases (rectilinear or diagonal) to transmit it in. She then prepares a photon polarization state depending both on the bit value and basis. So for example a 0 is encoded in the rectilinear basis (+) as a vertical polarization state, and a 1 is encoded in the diagonal basis (x) as a 135° state. Alice then transmits a single photon in the state specified to Bob, using a quantum channel. This process is then repeated from the random bit stage, with Alice recording the state, basis and time of each photon sent. As Bob does not know the basis the photons were encoded in, all he can do is to select a basis at random to measure in, either rectilinear or diagonal. He does this for each photon he receives, recording the time, measurement basis used and measurement result. After Bob has measured all the photons, he communicates with Alice over the public classical channel. Alice broadcasts the basis each photon was sent in, and Bob the basis each was measured in. They both discard photon measurements (bits) where Bob used a different basis, which is half on average, leaving half the bits as a shared key. Quantum key distribution is only used to produce and distribute a key, not to transmit any message data. This key can then be used with the one-time pad cipher with a secret random key. This video was downloaded and edited from Quantum cryptography, animated by Centre for Quantum Technologies @ https://www.youtube.com/watch?v=LaLzshIosDk
Views: 194 satnamo
How to establish a random encryption key securely with the Quantum Key Distribution scheme ?
 
01:57
BB84 protocol is a quantum key distribution scheme developed by Charles Bennett and Gilles Brassard in 1984. It is the first quantum cryptography protocol. The protocol is provably secure, relying on the quantum property that information gain is only possible at the expense of disturbing the signal if the two states one is trying to distinguish are not orthogonal (see no-cloning theorem). It is usually explained as a method of securely communicating a private key from one party to another for use in one-time pad encryption. Alice creates a random bit of 0 or 1 and then randomly selects one of her two bases (rectilinear or diagonal) to transmit it in. She then prepares a photon polarization state depending both on the bit value and basis. So for example a 0 is encoded in the rectilinear basis (+) as a vertical polarization state, and a 1 is encoded in the diagonal basis (x) as a 135° state. Alice then transmits a single photon in the state specified to Bob, using a quantum channel. This process is then repeated from the random bit stage, with Alice recording the state, basis and time of each photon sent. As Bob does not know the basis the photons were encoded in, all he can do is to select a basis at random to measure in, either rectilinear or diagonal. He does this for each photon he receives, recording the time, measurement basis used and measurement result. After Bob has measured all the photons, he communicates with Alice over the public classical channel. Alice broadcasts the basis each photon was sent in, and Bob the basis each was measured in. They both discard photon measurements (bits) where Bob used a different basis, which is half on average, leaving half the bits as a shared key. Quantum key distribution is only used to produce and distribute a key, not to transmit any message data. This key can then be used with the one-time pad cipher with a secret random key. This video was downloaded and edited from Quantum cryptography, animated by Centre for Quantum Technologies @ https://www.youtube.com/watch?v=LaLzshIosDk
Views: 78 satnamo
One Time Pad Solution - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 1408 Udacity
One Time Pad Cryptosystem - Perfect Secrecy
 
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Cryptography Bootcamp: http://bit.ly/cryptography-java Find more: http://www.globalsoftwaresupport.com/
Views: 62 Balazs Holczer
Advances in quantum cryptography for free-space communications
 
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Quantum mechanics provides methods of encryption that are secure from eavesdropping attacks against the quantum channel. The National Institute of Standards and Technology (NIST; Gaithersburg, MD) has developed a high-speed quantum key distribution test bed incorporating both free-space and fiber systems. In this video, Joshua Bienfang of NIST talks about the quantum cryptographic system that operates over a 1.5-kilometer free-space link on the NIST campus. These quantum communication systems rely on cryptographic key known to both the sender (Alice) and receiver (Bob). Transmitting at 1.25 gigahertz, any intrusion into the system would be detected by comparing data at the transmitting and receiving end. Bienfang is a physicist in the Electron and Optical Physics Division at NIST, where he works on quantum cryptography. Related publications: Quantum key distribution at GHz transmission rates Alessandro Restelli, Joshua C. Bienfang, Alan Mink, and Charles W. Clark Proceedings of SPIE Volume 7236 (2009) High speed quantum key distribution system supports one-time pad encryption of real-time video Alan Mink, Xiao Tang, LiJun Ma, Tassos Nakassis, Barry Hershman, Joshua C. Bienfang, David Su, Ron Boisvert, Charles W. Clark, and Carl J. Williams Proceedings of SPIE Volume 6244 (2006)
Views: 3978 SPIETV
One-Time Pads - CompTIA Security+ SY0-401: 6.2
 
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Security+ Training Course Index: http://professormesser.link/sy0401 Professor Messer’s Course Notes: http://professormesser.link/sy0401cn Frequently Asked Questions: http://professormesser.link/faq - - - - - Encrypting with a one-time pad is a very strong encryption technique. In this video, I’ll demonstrate how you can use a one-time pad to encrypt your data. - - - - - 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/ 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: 20111 Professor Messer
One Time Pad - Applied Cryptography
 
03:44
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 44409 Udacity
Quantum Cryptography
 
01:51:42
Daniel Gottesman - Perimeter Institute for Theoretical Physics Sensitive information can be valuable to others - from your personal credit card numbers to state . Animation by Mike Brodie. Quantum cryptography、consisting of quantum key distribution (QKD) and one-time pad encryption, allows for communication with unconditional security. In QKD .
Views: 5 Donald Langston
Network Security - Basic Cryptography
 
10:12
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 259 intrigano
David Kahn on recent developments in cryptography and stealing code keys
 
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David Kahn, author of The Codebreakers - The Story of Secret Writing on: the lack of information on current codes; the tactical advantages from stealing code keys; Quantum cryptography; and the virtual unbreakability of one-time pad codes.
Views: 1872 SmartMonkeyTV
vlag: Computers beat Encryption and One Time Pads beat computers
 
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Quantum computers hate this pad! Encryption is a math problem with one solution, but one time pads are simple math problems with multiple solutions. Apply this to a XOR key combination scheme and use normal public files as partial keys to hard keys you store.
Views: 21 Troy Fletcher
Network Security - CryptoAnalysis of Monoalphabetic Substitution Cipher
 
13:13
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 337 intrigano
Network Security - Columnar Transposition Ciphers
 
04:07
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 763 intrigano
Network Security - Kerckhoff's Principle
 
09:05
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 510 intrigano
Can We Speak... Privately? Quantum Cryptography Lecture by Chip Elliott
 
57:11
Chip Elliott of Raytheon BBN Technologies, gave a talk titled "Can we Speak... Privately? Quantum Cryptography in a Broader Context" as part of the Quantum Frontiers Distinguished Lecture Series on June 21, 2012. This talk is presented by the Institute for Quantum Computing and the University of Waterloo's Department of Physics and Astronomy. Abstract: It's often useful to have a private conversation within a public world. What role can quantum cryptography play in keeping conversations private? Sometimes described as providing "unconditional security guaranteed by the laws of quantum physics," its security implications are both tantalizing and surprisingly elusive. This talk introduces quantum cryptography and describes the speaker's experience creating several types of quantum cryptography equipment, within the broader context of mainstream cryptography and secure communications. Biography: Chip Elliott is Project Director for GENI, a suite of experimental infrastructure being created by the National Science Foundation for research in network science and engineering. He is a Fellow of the AAAS and IEEE, and an active inventor with over 80 issued patents. Dr. Elliott has served on many national panels and has held visiting faculty positions at Dartmouth College, Tunghai University in Taiwan, and the Indian Institute of Technology, Kanpur. For More: http://iqc.uwaterloo.ca http://www.facebook.com/QuantumIQC http://www.twitter.com/QuantumIQC QuantumFactory Blog: http://quantumfactory.wordpress.com
Introduction to Quantum Cryptography 2017
 
01:10:00
I introduce the basic principles of quantum cryptography, and discuss todays status of its technology, with examples of optical schemes and components. No prior knowledge of quantum mechanics. Documentary, Quantum cryptography、consisting of quantum key distribution (QKD) and one-time pad encryption, allows for communication with unconditional security. In QKD systems, the senders encode information. All our videos for just education. Subscribe our channel and facebook page to watch our new uploads: Thanks.
Views: 6 Keli Doering
Quantum Resistant Encryption | TechSNAP 374
 
47:46
Good progress is being made on post-quantum resilient computing. We’ll explain how they’re achieving it, the risks facing traditional cryptography. Plus how bad defaults led to the theft of military Drone docs, new attacks against LTE networks, more! Chapters: 00:00:39 Hackers Steal Military Docs 00:05:35 Year-Old Critical Vulnerabilities Patched in ISP Broadband Gear 00:07:55 Timehop Breach 00:11:43 LTE Attacks 00:17:53 New Nintendo Switch Hardware 00:21:04 Sponsor: DigitalOcean https://do.co/snap 00:22:57 Sponsor: iXsystems https://ixsystems.com/techsnap 00:24:36 Sponsor: Ting https://techsnap.ting.com 00:26:57 Quantum Computing 00:40:02 Feedback Show Notes & Download: http://techsnap.systems/374 Support Jupiter Broadcasting on Patreon ------------- http://bit.ly/jbsignal --- Jupiter Broadcasting Shows --- Ask Noah ------------------------ http://podcast.asknoahshow.com/ Coder Radio -------------------- http://coder.show/ Linux Action News ---------- http://linuxactionnews.com Linux Unplugged ------------- http://linuxunplugged.com/ BSD Now ------------------------- http://bit.ly/bsdnow Unfilter ---------------------------- http://unfilter.show/ Tech Talk Today ------------- http://techtalk.today TechSNAP ----------------------- http://techsnap.systems User Error ------------------------ http://bit.ly/usererror --- Social Media --- Youtube ------------------- http://bit.ly/jupiteryoutube Twitter --------------------- http://bit.ly/jupitertwitter Facebook ----------------- http://bit.ly/jupiterfacebook Instagram ---------------- http://bit.ly/jupiterinstagram G+ --------------------------- http://bit.ly/jbgplus Reddit --------------------- http://bit.ly/jbreddit --- Support --- Patreon ------------------- http://bit.ly/jbsignal Patreon ------------------- http://bit.ly/jbunfilter Paypal --------------------- http://bit.ly/jupiterpaypal JB Stickers -------------- http://bit.ly/jbstickers • Jupiter Broadcasting © 2018 •
Quantum Key Distribution (2010) Short version
 
08:56
Introductory video of Quantum Key Distribution (2010) 9 minutes
Network Security - Use Crypto API to Encrypt and Decrypt
 
14:37
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Develop Secure Programs with Crypto API In this module, we learn how to use Crypto API to write secure programs for encrypting and decrypting documents, and for signing and verify documents. We then apply the techniques to enhance the registration process of a web site which ensures the account created is actually belonging to the owner of the email account the request profile. Learning Objectives • Develop secure programs with Crypto API for encryption, authentication, and integrity checking • Enhance the registration process of the web site by using the crypto api • Create and utilize the Crypto API to sign and verify documents Subscribe at: https://www.coursera.org
Views: 211 intrigano
Network Security - Advanced Encryption Standard
 
09:22
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 2 - Symmetric Key Cryptography In this module we present the basic mechanism of symmetric key crytography algorithms, discuss the DES and AES standard, describe the criteria for selecting AES standard, present the block cipher operating modes and discuss how the block swapping attacks and replay attacks can be prevented and detected. Learning Objectives • Understand the criteria for selecting crypto algorithms • Perform cryptoanalysis on simple ciphers • Select operating modes for symmetric encryption and to prevent block swapping and replay attacks • Understand DES and AES standards and their buildig blocks Subscribe at: https://www.coursera.org
Views: 40 intrigano
Network Security - RSA Asymmetric Crypto Algorithm
 
17:38
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Asymmetric Key Cryptography In this module we will learn the modular arithmetic, the Euler Totient Theorm, the RSA Asymmetric Crypto Algorithm, use OpenSSL to realize the basic operations of RSA Crypto Algorithm, and Diffie-Hellman Symmetric Key Exchange Protocol to derive session keys. Learning Objectives • Use Diffi-Hellman algorithm for Key Exchange • Apply RSA with OpenSSL for signing and encryption • Describe RSA Asymmetric Crypto Algorithm Subscribe at: https://www.coursera.org
Views: 61 intrigano
Introduction to quantum cryptography - Vadim Makarov
 
01:30:51
I introduce the basic principles of quantum cryptography, and discuss today's status of its technology, with examples of optical schemes and components. No prior knowledge of quantum mechanics. Documentary, Quantum cryptography、consisting of quantum key distribution (QKD) and one-time pad encryption, allows for communication with unconditional security. In QKD systems, the senders encode information. All our videos for just education. Subscribe our channel and facebook page to watch our new uploads: Thanks.
Views: 6 christian Wyatt
Network Security - Modular Arithmetic
 
13:59
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Asymmetric Key Cryptography In this module we will learn the modular arithmetic, the Euler Totient Theorm, the RSA Asymmetric Crypto Algorithm, use OpenSSL to realize the basic operations of RSA Crypto Algorithm, and Diffie-Hellman Symmetric Key Exchange Protocol to derive session keys. Learning Objectives • Use Diffi-Hellman algorithm for Key Exchange • Apply RSA with OpenSSL for signing and encryption • Describe RSA Asymmetric Crypto Algorithm Subscribe at: https://www.coursera.org
Views: 146 intrigano
World’s first post-quantum cryptography on a contactless security chip
 
05:00
As a pioneer in the development of encryption mechanisms that can withstand the computing power of future quantum computers Infineon is already preparing for the smooth transition from currently used security protocols to post-quantum cryptography (PQC). In a world of quantum computers, PQC should provide a level of security that is comparable with what RSA and ECC provide today in the classical computing world. Security experts at Infineon’s Munich headquarters and the Center of Excellence for contactless technologies in Graz, Austria, made a breakthrough in this field -~-~~-~~~-~~-~- Please watch: "LOYOLA ACADEMY DEGREE &PG COLLEGE BOYS HOSTEL DAY IN 2K19 TS" https://www.youtube.com/watch?v=IrSvL6cD8m0 -~-~~-~~~-~~-~-
Views: 402 tech dude
HOW TO USE ONE TIME PADS TEST
 
25:07
www.greatnorthernprepper.com This video is the follow up to my video on HOW TO MAKE ONE TIME PADS http://youtu.be/kOEQFFLdvbI In this video you will be given 6 Tests, three for sending, 3 for receiving. Find more information on www.greatnorthernprepper.com , you can find me on Facebook and Twitter.

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