Search results “Explain elliptic curve cryptography with example describe”
Elliptic Curve Cryptography Overview
John Wagnon discusses the basics and benefits of Elliptic Curve Cryptography (ECC) in this episode of Lightboard Lessons. Check out this article on DevCentral that explains ECC encryption in more detail: https://devcentral.f5.com/articles/real-cryptography-has-curves-making-the-case-for-ecc-20832
Views: 184797 F5 DevCentral
Elliptic Curve Diffie Hellman
A short video I put together that describes the basics of the Elliptic Curve Diffie-Hellman protocol for key exchanges.
Views: 123333 Robert Pierce
Elliptic Curve Cryptography Tutorial - Understanding ECC through the Diffie-Hellman Key Exchange
Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com Elliptic Curve Cryptography (ECC) is a type of public key cryptography that relies on the math of both elliptic curves as well as number theory. This technique can be used to create smaller, faster, and more efficient cryptographic keys. In this Elliptic Curve Cryptography tutorial, we build off of the Diffie-Hellman encryption scheme and show how we can change the Diffie-Hellman procedure with elliptic curve equations. Watch this video to learn: - The basics of Elliptic Curve Cryptography - Why Elliptic Curve Cryptography is an important trend - A comparison between Elliptic Curve Cryptography and the Diffie-Hellman Key Exchange
Views: 25170 Fullstack Academy
Elliptic Curve Cryptography Tutorial - An Introduction to Elliptic Curve Cryptography
Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com Elliptic Curve Cryptography (ECC) is a type of public key cryptography that relies on the math of both elliptic curves as well as number theory. This technique can be used to create smaller, faster, and more efficient cryptographic keys. In this Elliptic Curve Cryptography tutorial, we introduce the mathematical structure behind this new algorithm. Watch this video to learn: - What Elliptic Curve Cryptography is - The advantages of Elliptic Curve Cryptography vs. old algorithms - An example of Elliptic Curve Cryptography
Views: 13426 Fullstack Academy
An Introduction to Elliptic Curve Cryptography
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: 31297 nptelhrd
Elliptic Curves: Diffie-Hellman key exchange
Demonstration of Elliptic Curve Diffie-Hellman key exchange described in article https://trustica.cz/2018/05/17/elliptic-curve-diffie-hellman-key-exchange/ shows the calculation of public points and shared secret on elliptic curve in simple Weierstrass form y²=x³-2x+15 over GF(23). Starring Alice and Bob - since 1978. Consider subscribing to our YouTube channel to see some interesting cryptography-related videos in the future and maybe follow us on Twitter https://twitter.com/trusticacz as well!
Views: 511 Trustica
Elliptical - Words Defined
The definition of the word Elliptical. We strive to define all words in our book... Words Defined.
Views: 264 WordsDefined
Andrew Sutherland: Computing the image of Galois representations attached to elliptic curves
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, bibliographies, Mathematics Subject Classification - Multi-criteria search by author, title, tags, mathematical area Let E be an elliptic curve over a number field K. For each integer n[greater than]1 the action of the absolute Galois group GK:=Gal(K/K) on the n-torsion subgroup E[n] induces a Galois representation ρE,n:GK→ Aut(E[n])⋍GL2(ℤ/nℤ). The representations ρE,n form a compatible system, and after taking inverse limits one obtains an adelic representation ρE:GK→GL2(ℤ̂ ). If E/K does not have CM, then Serre's open image theorem implies that the image of ρE has finite index in GL2(ℤ̂ ); in particular, ρE,ℓ is surjective for all but finitely many primes ℓ. I will present an algorithm that, given an elliptic curve E/K without CM, determines the image of ρE,ℓ in GL2(ℤ/ℓℤ) up to local conjugacy for every prime ℓ for which ρE,ℓ is non-surjective. Assuming the generalized Riemann hypothesis, the algorithm runs in time that is polynomial in the bit-size of the coefficients of an integral Weierstrass model for E. I will then describe a probabilistic algorithm that uses this information to compute the index of ρE in GL2(ℤ̂ ). Recording during the thematic meeting: ''Arithmetics, geometry, cryptography and coding theory'' the May 18, 2015 at the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent
Dual EC or the NSA's Backdoor: Explanations
This video is an explanation following the paper Dual EC: A Standardized Backdoor by Daniel J. Bernstein, Tanja Lange and Ruben Niederhagen I have a blog here: www.cryptologie.net And you should follow me on twitter here: https://twitter.com/lyon01_david
Views: 5078 David Wong
Lenstra's elliptic curve factorization method
"Lenstra's elliptic curve factorization method," given by Leo Lai on 27th January 2016 as a guest speaker in the Churchill Computer Science Talks Series (http://talks.cam.ac.uk/show/index/63165). Leo's talk addresses something incredibly important to computer science: computational number theory. Computational number theory has deep links to cryptography and security, and one of the most fundamental problems is the factorization of huge numbers, the subject of this talk. Abstract: Integer factorization is an important problem in computational number theory with many applications in cryptography. Elliptic curves, on the other hands, are mathematical objects whose study predates the notion of computation by more than a century. In 1987, Lenstra described a new factoring algorithm using elliptic curves, which is still one of the fastest special purpose factorization algorithms invented so far. Conversely, the desire to rigorously analyze this algorithm has produced new results in number theory. This talk will describe his algorithm. No knowledge beyond basic number theory is required.
This Algorithm is used to exchange the secret /symmetric key between sender and receiver. This exchange of key can be done with the help of public key and private key step 1 Assume prime number p step 2 Select a such that a is primitive root of p and a less than p step 3 Assume XA private key of user A step 4 Calculate YA public key of user A with the help of formula step 5 Assume XB private key of user B step 6 Calculate YB public key of user B with the help of formula step 7 Generate K secret Key using YB and XA with the help of formula at Sender side. step 8 Generate K secret Key using YA and XB with the help of formula at Receiver side.
Public key cryptography - Diffie-Hellman Key Exchange (full version)
The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8
Views: 644551 Art of the Problem
The Twofish Encryption Algorithm
Twofish is a block cipher by Counterpane Labs, published in 1998. It was one of the five Advanced Encryption Standard (AES) finalists, and was not selected as AES. Twofish has a 128-bit block size, a key size ranging from 128 to 256 bits, and is optimized for 32-bit CPUs. Currently there is no successful cryptanalysis of Twofish. https://www.schneier.com/academic/twofish/ This animation is designed by Abdullah AlQahtani [email protected]
Views: 12116 Hemaya Group
PWLSF - 7/2017 - Kevin Burke on Curve25519 and Fast Public Key Cryptography
Special thanks to Stitch Fix for hosting this event! Mini ==== Tyler McMullen on Delta CRDTs Tyler will do his best to summarize and get you hooked on the three papers listed below: • https://arxiv.org/pdf/1410.2803.pdf • https://arxiv.org/pdf/1603.01529.pdf • http://dl.acm.org/citation.cfm?id=2911163 Tyler's Bio Tyler McMullen is CTO at Fastly, where he’s responsible for the system architecture and leads the company’s technology vision. As part of the founding team, Tyler built the first versions of Fastly’s Instant Purging system, API, and Real-time Analytics. Before Fastly, Tyler worked on text analysis and recommendations at Scribd. A self-described technology curmudgeon, he has experience in everything from web design to kernel development, and loathes all of it. Especially distributed systems. Main Talk ==== Kevin Burke on "Curve25519 and fast public key cryptography" ( https://cr.yp.to/ecdh/curve25519-20060209.pdf ) Kevin's Bio Kevin Burke (https://burke.services) likes building great experiences. He helped scale Twilio and Shyp, and currently runs a software consultancy. Kevin once accidentally left Waiting for Godot at the intermission.
Views: 877 PapersWeLove
Elliptic curve transformation
Elliptic curve transformation from generic to simplified Weierstrass form using Riemann-Roch theorem applied to algebraic curves as studied by Friedrich Karl Schmidt. For explanation of the math involved, please refer to the original article at https://trustica.cz/en/2018/02/22/introduction-to-elliptic-curves/
Views: 473 Trustica
Cryptography Lesson #1 - Block Ciphers
This tutorial video will help provide an understanding of what block ciphers are, and how they are used in the field of cryptography.
Views: 151095 Ryan Kral
Applied Cryptography: The Digital Signature Algorithm - Part 1
This video describes the key generation for the DSA. An example with artificially small numbers is also given
Views: 8265 Leandro Junes
Asymmetric encryption - Simply explained
How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English! 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Web Crypto API ECDH generateKey deriveBits perform AES encryption and decryption
Reference https://8gwifi.org/docs/window-crypto-ecdh.jsp The Web crypto api describes using Elliptic Curve Diffie-Hellman (ECDH) for key generation and key agreement, as specified by RFC6090. This is the web cryptography api example of performing ECDH generateKey and derivebits, and then using generate key to encrypt and decrypt the message in AES web crypto api example web crypto api example ecdh javascript web crypto api example ecdh
Views: 123 Zariga Tongy
RSA Algorithm With Example
Views: 121628 B Hariharan
How RSA Works
RSA is an extremely popular cryptosystem used to secure Internet communications today. In this video, John describes RSA encryption and shows a real example of how to encrypt and decrypt using RSA.
Views: 12690 F5 DevCentral
Public Key Cryptography: Diffie-Hellman Key Exchange (short version)
This is a segment of this full video: https://www.youtube.com/watch?v=YEBfamv-_do Diffie-Hellman key exchange was one of the earliest practical implementations of key exchange within the field of cryptography. It relies on the discrete logarithm problem. This test clip will be part of the final chapter of Gambling with Secrets!
Views: 452965 Art of the Problem
Diffie Hellman Algorithm with solved example
In this video I explained Diffie Hellman Algorithm with solved Numerical problem. Video is about how two persons can exchange their secret key. Notes link : https://drive.google.com/file/d/1_T5PVcl5NfR_S9p9MEwD42cS2YqN97FJ/view?usp=drivesdk If you have any doubts then you can connect me via: Email : [email protected] Contact : 7030994979
Views: 10564 Exam Partner
DES algorithm follows the Feistel Structure Most of the Block cipher algorithms follows Feistel Structure BLOCK SIZE - 64 bits Plain Text No. of Rounds - 16 Rounds Key Size - 64 bits Sub Key Size - 48 bits No. of Sub Keys - 16 Sub Keys Cipher Text - 64 bits
Views: 197213 Sundeep Saradhi Kanthety
Bitcoin - Digital Signatures
A high-level explanation of digital signature schemes, which are a fundamental building block in many cryptographic protocols. More free lessons at: http://www.khanacademy.org/video?v=Aq3a-_O2NcI Video by Zulfikar Ramzan. Zulfikar Ramzan is a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire. He received his Ph.D. in computer science from MIT.
Views: 142435 Khan Academy
Igor Shparlinski: Group structures of elliptic curves #3
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, bibliographies, Mathematics Subject Classification - Multi-criteria search by author, title, tags, mathematical area We give a survey of results which address the following generic question: How does a random elliptic curve over a finite field look like. This question has a rich variety of specfic interpretations, which depend on how one defines a random curve and what properties which are of interest. The former may include randomisation of the coefficients of the Weierstrass equation or the prime power defining the field, or both. The latter may include studying the group structure, arithmetic structure of the number of points (primality, smoothness, etc.) and certain divisibility conditions. These questions are related to such celebrated problems as Lang-Trotter and Sato-Tate conjectures. More recently the interest to these questions was re-fueled by the needs of pairing based cryptography. In a series of talks we will describe the state of art in some of these directions, demonstrate the richness of underlying mathematics and pose some open questions. Recording during the thematic meeting: "Frobenius distribution on curves" the February 21, 2014 at the Centre International de Rencontres Mathématiques (Marseille, France)
Applied Cryptography: Diffie–Hellman Key Exchange - Part 1
This video describes in detailed the Diffie–Hellman Key Exchange. A proof on why this protocol works is also given.
Views: 1802 Leandro Junes
Massimo Bertolini: Beilinson Flach elements and the arithmetic of elliptic curves
This talk explains a p-adic Beilinson formula relating the p-adic L-function associated to the Rankin convolution of two cusp forms to so-called Beilinson-Flach elements. It will then describe some applications to new cases of the Birch and Swinnerton-Dyer conjecture for elliptic curves. This is a report on work in progress with Henri Darmon and Victor Rotger.(6.2.2014)
Knapsack Problem In Cryptography | Knapsack Public Key Encyption
In this video you will learn how to solve knapsack problem in cryptography .. encrytion and decryption of any letter using ASCII value and convert them into binary .. which will make hard of any intruder to decrypt the message Please subscribe and like video . Thanks Visit Our Channel :- https://www.youtube.com/channel/UCxik... In this lecture we have taught about Knapsack Public Key Cryptography and how to solve it with example. 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: 12660 Quick Trixx
The Birthday Problem
The explains that it only takes a group of 23 people to have a 50% chance that two people have the same birthday. http://mathispower4u.com
Views: 3381 Mathispower4u
Public Key – Secrecy
Cyber Attack Countermeasures Module 4 Overview of Public Key Cryptographic Methods This module introduces the basics of public key cryptography including an overview of SSL and CA applications. Learning Objectives • Discuss CBC mode cryptography • Describe conventional crypto scaling • Identify the basics of public key cryptography including secrecy and digital signing • Examine Diffie Hellman Key Exchange and its contributions to security • Explain key distribution techniques including CA protocols • Summarize SSL and how it is implemented in browsers • Examine the history of cryptographic invention in the US and UK Subscribe at: https://www.coursera.org/learn/intro-cyber-attacks/home/welcome https://www.coursera.org
Views: 84 intrigano
High-Speed Cryptography in Java: X25519, Poly1305, and EdDSA
Adam Petcher, Principal Member of Technical Staff, Oracle JDK 11 includes support for the first of a new breed of cryptographic algorithm that features improved performance, trustworthiness, and security in cloud and multitenant environments. This session describes the features and implementations of some of these algorithms: X25519 key agreement, Poly1305 authentication, and EdDSA signatures. The presentation focuses on the techniques used to develop high-performance, secure implementations of modern cryptographic algorithms in Java. No knowledge of cryptography is required, and the session should be relevant to anyone who is interested in Java performance.
Views: 426 Oracle Developers
Elgamal Encryption (Theory and Concepts)
- A brief introduction to Elgamel Encryption - Explaining Diffie-Hellman Key Exchange - no details calculations
Views: 5699 c. jian
RSA use cases: difference between RSA Encryption and Digital Signature
This video describes the two use cases of RSA asymmetric key algorithm. 1. RSA Encryption and 2. Digital signature. Its especially intended for new comers in Cryptography to make their concept clear in how RSA can be used to secure the communication over internet. Both of these cases can also be combined one after another to get both advantages. Music: Alan Walker - Spectre
Views: 1609 Anum Sheraz
What is RANDOM ORACLE? What does RANDOM ORACLE mean? RANDOM ORACLE meaning & explanation
What is RANDOM ORACLE? What does RANDOM ORACLE mean? RANDOM ORACLE meaning - RANDOM ORACLE definition - RANDOM ORACLE 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 In cryptography, a random oracle is an oracle (a theoretical black box) that responds to every unique query with a (truly) random response chosen uniformly from its output domain. If a query is repeated it responds the same way every time that query is submitted. Stated differently, a random oracle is a mathematical function chosen uniformly at random, that is, a function mapping each possible query to a (fixed) random response from its output domain. Random oracles as a mathematical abstraction were firstly used in rigorous cryptographic proofs in the 1993 publication by Mihir Bellare and Phillip Rogaway (1993). They are typically used when the cryptographic hash functions in the method cannot be proven to possess the mathematical properties required by the proof. A system that is proven secure when every hash function is replaced by a random oracle is described as being secure in the random oracle model, as opposed to secure in the standard model of cryptography. Random oracles are typically used as an ideal replacement for cryptographic hash functions in schemes where strong randomness assumptions are needed of the hash function's output. Such a proof generally shows that a system or a protocol is secure by showing that an attacker must require impossible behavior from the oracle, or solve some mathematical problem believed hard in order to break it. Not all uses of cryptographic hash functions require random oracles: schemes that require only one or more properties having a definition in the standard model (such as collision resistance, preimage resistance, second preimage resistance, etc.) can often be proven secure in the standard model (e.g., the Cramer–Shoup cryptosystem). Random oracles have long been considered in computational complexity theory, and many schemes have been proven secure in the random oracle model, for example Optimal Asymmetric Encryption Padding, RSA-FDH and Probabilistic Signature Scheme. In 1986, Amos Fiat and Adi Shamir showed a major application of random oracles – the removal of interaction from protocols for the creation of signatures. In 1989, Russell Impagliazzo and Steven Rudich showed the limitation of random oracles – namely that their existence alone is not sufficient for secret-key exchange. In 1993, Mihir Bellare and Phillip Rogaway were the first to advocate their use in cryptographic constructions. In their definition, the random oracle produces a bit-string of infinite length which can be truncated to the length desired. According to the Church–Turing thesis, no function computable by a finite algorithm can implement a true random oracle (which by definition requires an infinite description). In fact, certain artificial signature and encryption schemes are known which are proven secure in the random oracle model, but which are trivially insecure when any real function is substituted for the random oracle. Nonetheless, for any more natural protocol a proof of security in the random oracle model gives very strong evidence of the practical security of the protocol. In general, if a protocol is proven secure, attacks to that protocol must either be outside what was proven, or break one of the assumptions in the proof; for instance if the proof relies on the hardness of integer factorization, to break this assumption one must discover a fast integer factorization algorithm. Instead, to break the random oracle assumption, one must discover some unknown and undesirable property of the actual hash function; for good hash functions where such properties are believed unlikely, the considered protocol can be considered secure.
Views: 445 The Audiopedia
Quantum Optics – Quantum cryptography the BB84 QKD scheme
One-photon based quantum technologies In this lesson, you will discover two quantum technologies based on one photon sources. Quantum technologies allow one to achieve a goal in a way qualitatively different from a classical technology aiming at the same goal. For instance, quantum cryptography is immune to progress in computers power, while many classical cryptography methods can in principle be broken when we have more powerful computers. Similarly, quantum random number generators yield true random numbers, while classical random number generators only produce pseudo-random numbers, which might be guessed by somebody else than the user. This lesson is also an opportunity to learn two important concepts in quantum information: (i) qubits based on photon polarization; (ii) the celebrated no-cloning theorem, at the root of the security of quantum cryptography. Learning Objectives • Apply your knowledge about the behavior of a single photon on a beam splitter to quantum random number generators. • Understand the no-cloning theorem • Understand and remember the properties of q qubit This course gives you access to basic tools and concepts to understand research articles and books on modern quantum optics. You will learn about quantization of light, formalism to describe quantum states of light without any classical analogue, and observables allowing one to demonstrate typical quantum properties of these states. These tools will be applied to the emblematic case of a one-photon wave packet, which behaves both as a particle and a wave. Wave-particle duality is a great quantum mystery in the words of Richard Feynman. You will be able to fully appreciate real experiments demonstrating wave-particle duality for a single photon, and applications to quantum technologies based on single photon sources, which are now commercially available. The tools presented in this course will be widely used in our second quantum optics course, which will present more advanced topics such as entanglement, interaction of quantized light with matter, squeezed light, etc... So if you have a good knowledge in basic quantum mechanics and classical electromagnetism, but always wanted to know: • how to go from classical electromagnetism to quantized radiation, • how the concept of photon emerges, • how a unified formalism is able to describe apparently contradictory behaviors observed in quantum optics labs, • how creative physicists and engineers have invented totally new technologies based on quantum properties of light, then this course is for you. Subscribe at: https://www.coursera.org
Views: 6238 intrigano
Hashing Algorithms
Enterprise and Infrastructure Security About this course: This course introduces a series of advanced and current topics in cyber security, many of which are especially relevant in modern enterprise and infrastructure settings. The basics of enterprise compliance frameworks are provided with introduction to NIST and PCI. Hybrid cloud architectures are shown to provide an opportunity to fix many of the security weaknesses in modern perimeter local area networks. Emerging security issues in blockchain, blinding algorithms, Internet of Things (IoT), and critical infrastructure protection are also described for learners in the context of cyber risk. Mobile security and cloud security hyper-resilience approaches are also introduced. The course completes with some practical advice for learners on how to plan careers in cyber security. Module 3 Blockchain, Anonymity, and Critical Infrastructure Protection Dr. Edward G. Amoroso This module introduces several advanced topics in cyber security ranging from blockchain usage, user anonymity, and critical infrastructure protection. Learning Objectives • Summarize the basics of hash functions and how they generally work • Explain blockchain, including mining and chaining techniques for integrity • Explain onion routing and the Tor browser • Analyze Chaum's binding techniques for anonymity • Differentiate between critical and non-critical infrastructure for cyber protection To get certificate subscribe at: https://www.coursera.org/learn/intro-cyber-attacks/home/welcome https://www.coursera.org
Views: 36 intrigano
Part 2 - Security Goals (CNS)
Cryptography and network security goals This is Part 2 of Cryptography and Network Security. Watch part 1 here: https://youtu.be/BbeopHawSMc
Views: 246 Peekaboo
Man in the Middle Attack on Diffie-Hellman Key Exchange and Solution using Public-Key Certificates
This video describes the man-in-the-middle attack on Diffie-Hellman Key Exchange with an Example and how to prevent it using public-key certificate
Views: 15033 Natarajan Meghanathan
RSA Cryptosystem Algorithm (Public Key Algorithm) in Hindi with Example
RSA Cryptosystem Algorithm (Public Key Algorithm) in Hindi with Example Like FB Page - https://www.facebook.com/Easy-Engineering-Classes-346838485669475/ Complete Data Structure Videos - https://www.youtube.com/playlist?list=PLV8vIYTIdSna11Vc54-abg33JtVZiiMfg Complete Java Programming Lectures - https://www.youtube.com/playlist?list=PLV8vIYTIdSnbL_fSaqiYpPh-KwNCavjIr Previous Years Solved Questions of Java - https://www.youtube.com/playlist?list=PLV8vIYTIdSnajIVnIOOJTNdLT-TqiOjUu Complete DBMS Video Lectures - https://www.youtube.com/playlist?list=PLV8vIYTIdSnYZjtUDQ5-9siMc2d8YeoB4 Previous Year Solved DBMS Questions - https://www.youtube.com/playlist?list=PLV8vIYTIdSnaPiMXU2bmuo3SWjNUykbg6 SQL Programming Tutorials - https://www.youtube.com/playlist?list=PLV8vIYTIdSnb7av5opUF2p3Xv9CLwOfbq PL-SQL Programming Tutorials - https://www.youtube.com/playlist?list=PLV8vIYTIdSnadFpRMvtA260-3-jkIDFaG Control System Complete Lectures - https://www.youtube.com/playlist?list=PLV8vIYTIdSnbvRNepz74GGafF-777qYw4
Views: 140724 Easy Engineering Classes
Perfect Forward Secrecy
John outlines the concept of Perfect Forward Secrecy and describes what it takes to achieve this level of security.
Views: 19928 F5 DevCentral
web crypto api RSA-PSS Generate Keys Sign verify Message
Reference : https://8gwifi.org/docs/window-crypto-rsapss.jsp The Web crypto api describes using The RSA-PSS algorithm identifier is used to perform signing and verification using the RSASSA-PSS algorithm specified in [RFC3447], using the SHA hash functions defined in this specification and the mask generation formula MGF1. The recognized algorithm name for this algorithm is "RSA-PSS". sign: Perform the signature generation operation verify: Perform the signature verification operation importKey EcKeyImportParams Key (spki,jwk,raw,pkcs8) exportKey None ArrayBuffer generateKey: Generate an RSA key pair web crypto api example web cryptography api browser support javascript web crypto api example web crypto api chrome web crypto sample web crypto sign example web crypto polyfill
Views: 198 Zariga Tongy
Elgamal Encryption and Decryption Algorithm | Elgamal Cryptosysterm With Solved Example
This video explains how the elgama cryptosystem encryption and decryption is done 😎😎 Visit Our Channel :- https://www.youtube.com/channel/UCxik... In this lecture we have taught about Diffie Hellman Key Exchange and how it operates. Also a quick overview of AES and the basics of encryption. 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: 35948 Quick Trixx
RSA Encryption with Excel Part 2
This is a class room example of RSA encryption using 3 digit primes and excel for the calculation engine. The video is in three parts. Part 2 describes the process of raising a number to a large power. This class happened on April 12, 2011 at Eastside Preparatory School in Kirkland Download the spreadsheet https://docs.google.com/open?id=1GLcLhuBUvmC5_YxcILVLnkjhghFa8ABSlMLG7Wm9LZE
Views: 8116 Jonathan Briggs
Applied Cryptography: Hash Functions - Part 1
This video gives a general idea on what hash functions are and their uses. It also describes a use of hash functions for a digital signature protocol.
Views: 31093 Leandro Junes
Pairing-based proof systems and applications to anonymous credentials
Pairing based cryptography has resulted in a number of breakthrough results, including some major developments in the area of zero knowledge proof systems. A zero knowledge proof system allows a party to prove that a statement is true without revealing any other information. Zero knowledge proofs are used in everything from identification protocols (allowing a party to prove that he is who he claims to be) and encryption schemes with stronger security properties, to securing protocols against malicious adversaries, and constructing privacy preserving systems. It has been shown that zero knowledge proofs can be constructed from a variety of number theoretic assumptions (or, more generally from any trapdoor permutation); however most of these constructions are complex and inefficient. In '06 Groth, Ostrovsky, an Sahai showed how to construct proof systems based on pairings which have much more structure than traditional constructions; this structure in turn has since been shown to result in proof systems with greater efficiency, stronger security, and more functionality. This talk will describe at a high level how pairings allows us to construct zero knowledge proofs with more structure than traditional tools, and then discuss some of the applications that take advantage of this structure, focusing on applications to privacy and anonymity.
Views: 1202 Microsoft Research
Circular Encryption in Formal and Computational Cryptography - Bruce Kapron
Bruce Kapron University of Victoria; Member, School of Mathematics March 25, 2014 The goal of computationally sound symbolic security is to create formal systems of cryptography which have a sound interpretation with respect to complexity-based notions of security. While there has been much progress in the development of such systems, one big impediment is the treatment of circular encryptions. In many typical symbolic systems, it is secure to encrypt a key by itself, but in the computational setting, standard notions of security break down in this case. There are now approaches to this problem from both sides. On the symbolic side, Miccianico (2010) presented a system in which adversarial knowledge is modeled co-inductively, and circular encryption is no longer symbolically secure. On the computational side, systems in which circular encryptions are secure have been developed based on standard hardness assumptions. I will survey the work described above, as well as presenting some recent results on extending Micciancio's system beyond the setting of passive eavesdropping adversaries (joint work with Mohammad Hajiabadi.) For more videos, visit http://video.ias.edu
RSA Algorithm concept and Example
Enroll to Full Course: https://goo.gl/liK0Oq Networks#4: The video explains the RSA Algorithm (public key encryption) Concept and Example along with the steps to generate the public and private keys. The video also provides a simple example on how to calculate the keys and how to encrypt and decrypt the messages. For more, visit http://www.EngineeringMentor.com. FaceBook: https://www.facebook.com/EngineeringMentor. Twitter: https://www.twitter.com/Engi_Mentor
Views: 165371 Skill Gurukul