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: 11325 Fullstack Academy
Kimmo U. Järvinen and Andrea Miele and Reza Azarderakhsh and Patrick Longa, CHES 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27837
Views: 346 TheIACR
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: 756 PapersWeLove
The 18th annual DebConf was held in Montreal, Canada from August 6 to August 12, 2017. It has been preceded by DebCamp, July 31st to August 4th, and Open Day, August 5th. Speaker: Niibe Yutaka I will explain about HOWTO Ed25519 / X25519 (the new ECC). GnuPG 2.1 (in Stretch) supports Ed25519 signature and X25519 encryption. The key is short, crypto computation is fast, and strength is considered good enough. In Debconf 15, I was asked about how to generate Ed25519/X25519 keys and wrote an article: https://www.gniibe.org/memo/software/gpg/keygen-25519.html It is also supported by OpenSSH. (Although we can’t put ssh-ed25519 keys to Alioth, yet.) Sure, it is supported by Gnuk Token, and it’s quite useful because it’s faster than RSA. Slides: https://annex.debconf.org/debconf-share/debconf17/slides/162-lets_use_ed25519_with_gnupg21_and_gnuk_token.pdf
Views: 146 Jalal Al-Haj
This is lecture on "Factoring with Elliptic Curves", by Jeremy Teitelbaum, during CTNT 2018, the Connecticut Summer School in Number Theory. For more information about CTNT and other resources and notes, see https://ctnt-summer.math.uconn.edu/
Views: 118 UConn Mathematics
Elliptic curve cryptography is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. One of the main benefits in comparison with non-ECC cryptography is the same level of security provided by keys of smaller size. Elliptic curves are applicable for encryption, digital signatures, pseudo-random generators and other tasks. They are also used in several integer factorization algorithms that have applications in cryptography, such as Lenstra elliptic curve factorization. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 2857 Audiopedia
Animations of Hendrik Lenstra’s Elliptic Curve Factorization Algorithm (aka ECM), checking if 1997 is a prime number using the curves with x coefficients 23, 101 and 853. This algorithm takes a curve over the field Z/nZ and using the Group Law on Elliptic Curves, “multiplies” a point P by a big integer (in this animations, I have used 720719). This multiplication is sped up using the double-and-add algorithm. If the algorithm couldn’t compute the next point during this multiplication, it would have found a factor of n. When a point P turns blue in the animation, it means that P⊕P gives the green point. When two points P and Q = (0, 1) turn blue, the green point is the resultant of the Group Law P⊕Q. Code: https://gist.github.com/andreuinyu/d98c12f81c49e2df4e85 Tumblr: http://andreuinyu.tumblr.com/post/101190621206/animations-of-hendrik-lenstras-elliptic-curve Reddit: http://redd.it/2klii6
Views: 1757 Andreu Punsola Soler
This will be the fourth of six cryptography primer sessions exploring the basics of modern cryptography. In this session, we’ll explore primality testing, elliptic curve cryptosystems, and lattice-based cryptosystems. Subsequent sessions (on alternating Fridays) are expected to include the following topics. Depending on the interests of the participants, other topics may be included or substituted. Attacks, vulnerabilities, and practical considerations Applications including zero-knowledge, secret sharing, homomorphic encryption, and election protocols.
Views: 409 Microsoft Research
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: 627364 Art of the Problem
A talk given at the University of Waterloo on July 12th, 2016. The intended audience was mathematics students without necessarily any prior background in cryptography or elliptic curves. Apologies for the poor audio quality. Use subtitles if you can't hear.
Views: 2193 David Urbanik
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Only 4 steps stand between you and the secrets hidden behind RSA cryptography. Find out how to crack the world’s most commonly used form of encryption. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode: Can We Combine pi & e into a Rational Number? https://www.youtube.com/watch?v=bG7cCXqcJag&t=25s Links to other resources: Shor's paper: https://arxiv.org/abs/quant-ph/9508027v2 Lecture on Shor's Algorithm: https://arxiv.org/pdf/quant-ph/0010034.pdf Blog on Shor's algorithm: http://www.scottaaronson.com/blog/?p=208 Video on RSA cryptography: https://www.youtube.com/watch?v=wXB-V_Keiu8 Another video on RSA cryptography: https://www.youtube.com/watch?v=4zahvcJ9glg Euler's Big Idea: https://en.wikipedia.org/wiki/Euler%27s_theorem (I can find a non-wiki article, but I don't actually use this in the video. It's just where to learn more about the relevant math Euler did.) Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Challenge Winner - Reddles37 https://www.youtube.com/watch?v=bG7cCXqcJag&lc=z135cnmgxlbwch1ds233sbzgaojkivaz004 Comments answered by Kelsey: Joel David Hamkins https://www.youtube.com/watch?v=bG7cCXqcJag&lc=z13zdpcwyk2ofhugh04cdh4agsr2whmbsmk0k PCreeper394 https://www.youtube.com/watch?v=bG7cCXqcJag&lc=z135w324kw21j1qi104cdzvrpoixslmq1jw
Views: 189127 PBS Infinite Series
For more information visit: To download the video visit: Playlist Shmoocon 2017: Speakers: Daniel J. Bernstein. 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: And you. Slides - - Paper - Keywords: Elliptic-curve cryptography, verifiably.
Views: 33 Belle Crossett
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: 72499 MIT OpenCourseWare
What is POST-QUANTUM CRYPTOGRAPHY? What does POST-QUANTUM CRYPTOGRAPHY mean? POST-QUANTUM CRYPTOGRAPHY meaning - POST-QUANTUM CRYPTOGRAPHY definition - POST-QUANTUM CRYPTOGRAPHY 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 Post-quantum cryptography refers to cryptographic algorithms (usually public-key algorithms) that are thought to be secure against an attack by a quantum computer. This is not true for the most popular public-key algorithms, which can be efficiently broken by a sufficiently large quantum computer. The problem with the currently popular algorithms is that their security relies on one of three hard mathematical problems: the integer factorization problem, the discrete logarithm problem or the elliptic-curve discrete logarithm problem. All of these problems can be easily solved on a sufficiently powerful quantum computer running Shor's algorithm. Even though current, publicly known, experimental quantum computers are too small to attack any real cryptographic algorithm, many cryptographers are designing new algorithms to prepare for a time when quantum computing becomes a threat. This work has gained greater attention from academics and industry through the PQCrypto conference series since 2006 and more recently by several workshops on Quantum Safe Cryptography hosted by the European Telecommunications Standards Institute (ETSI) and the Institute for Quantum Computing. In contrast to the threat quantum computing poses to current public-key algorithms, most current symmetric cryptographic algorithms and hash functions are considered to be relatively secure against attacks by quantum computers. While the quantum Grover's algorithm does speed up attacks against symmetric ciphers, doubling the key size can effectively block these attacks. Thus post-quantum symmetric cryptography does not need to differ significantly from current symmetric cryptography.
Views: 216 The Audiopedia
In this presentation I will outline two projects which I have been working on during my PhD. Both projects are related to the elliptic curve discrete logarithm problem (ECDLP): the theoretical foundation of many modern cryptosystems. First I will outline how we have set a new record by solving the ECDLP over a 112-bit prime field using a cluster of PlayStation 3 game consoles in 2009. Next, the negation map optimization is discussed: this is an technique to speed up the Pollard rho method when solving the ECDLP. It is well known that the random walks used by Pollard rho when combined with the negation map get trapped in fruitless cycles. I will present that previously published approaches to deal with this problem are plagued by recurring cycles: effective alternative countermeasures are proposed.
Views: 207 Microsoft Research
When you’re trying to learn a new programming language it makes sense to start with a small project. A lot of developers would write an API server or a Twitter bot. When I try to learn a new language I start by writing a game. Let me show you how I wrote my first game in Rust with Piston. Lisa Passing https://lislis.de/ https://github.com/lislis https://users.rust-lang.org/users/lislis/activity
Views: 30775 Rust
Original post: https://www.gcppodcast.com/post/episode-123-post-quantum-cryptography-with-nick-sullivan-and-adam-langley/ Nick Sullivan, and Adam Langley join Melanie and Mark to provide a pragmatic view on post-quantum cryptography and what it means to research security for the potential of quantum computing. Post-quantum cryptography is about developing algorithms that are resistant to quantum computers in conjunction with “classical” computers. It’s about looking at the full picture of potential threats and planning on how to address them using a diversity of types of mathematics in the research. Adam and Nick help clarify the different terminology and techniques that are applied in the research and give a practical understanding of what to expect from a security perspective.
Views: 1055 Google Cloud Platform
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: 272432 Physics Girl
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Symmetric keys are essential to encrypting messages. How can two people share the same key without someone else getting a hold of it? Upfront asymmetric encryption is one way, but another is Diffie-Hellman key exchange. This is part 3 in our Cryptography 101 series. Check out the playlist here for parts 1 & 2: https://www.youtube.com/watch?v=NOs34_-eREk&list=PLa6IE8XPP_gmVt-Q4ldHi56mYsBuOg2Qw Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Topology vs. “a” Topology https://www.youtube.com/watch?v=tdOaMOcxY7U&t=13s Symmetric single-key encryption schemes have become the workhorses of secure communication for a good reason. They’re fast and practically bulletproof… once two parties like Alice and Bob have a single shared key in hand. And that’s the challenge -- they can’t use symmetric key encryption to share the original symmetric key, so how do they get started? Written and Hosted by Gabe Perez-Giz Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow and Meah Denee Barrington Made by Kornhaber Brown (www.kornhaberbrown.com) Thanks to Matthew O'Connor, Yana Chernobilsky, and John Hoffman who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose, Jason Hise, Thomas Scheer, Marting Sergio H. Faester, CSS, and Mauricio Pacheco who are supporting us at the Lemma level!
Views: 51334 PBS Infinite Series
This is a video showing the prototype implementation of the On-Device-Signatures signing JSON formatted temperature data (JSON Sensor Signatures) on a constrained device (Zolertia Z1). This way RERUM ensures seamless integrity protection for measurements from constrained sensors towards the higher levels of the IoT (gateways, middleware, databases, message queues, and applications), and vice versa. More details can be found in RERUM Deliverable D3.1 here https://bscw.ict-rerum.eu/bscw/bscw.cgi/d28081/RERUM%20deliverable%20D3_1%20as%20submitted%20to%20the%20EC.pdf
Views: 176 ICT RERUM
The basic mechanics of a bitcoin transaction between two parties and what is included within a given bitcoin transaction record. More free lessons at: http://www.khanacademy.org/video?v=9-9_v1wSPBQ 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: 111727 Khan Academy
Video taken during the Network and Distributed System Security (NDSS) Symposium 2017, held February 26 through March 1, 2017, at Catamaran Resort Hotel & Spa in San Diego, California. Measuring small subgroup attacks against Diffie-Hellman Several recent standards, including NIST SP 800- 56A and RFC 5114, advocate the use of DSA parameters for Diffie-Hellman key exchange. While it is possible to use such parameters securely, additional validation checks are necessary to prevent well-known and potentially devastating attacks. In this paper, we observe that many Diffie-Hellman implementations do not properly validate key exchange inputs. Combined with other protocol properties and implementation choices, this can radically decrease security. We measure the prevalence of these parameter choices in the wild for HTTPS, POP3S, SMTP with STARTTLS, SSH, IKEv1, and IKEv2, finding millions of hosts using DSA and other non- safe primes for Diffie-Hellman key exchange, many of them in combination with potentially vulnerable behaviors. We examine over 20 open-source cryptographic libraries and applications and observe that until January 2016, not a single one validated subgroup orders by default. We found feasible full or partial key recovery vulnerabilities in OpenSSL, the Exim mail server, the Unbound DNS client, and Amazon s load balancer, as well as susceptibility to weaker attacks in many other applications. Authors: Luke Valenta (University of Pennsylvania), David Adrian (University of Michigan), Antonio Sanso (Adobe), Shaanan Cohney (University of Pennsylvania), Joshua Fried (University of Pennsylvania), Marcella Hastings (University of Pennsylvania), J. Alex Halderman (University of Michigan), Nadia Heninger (University of Pennsylvania)
Views: 187 NDSS Symposium
What is PUBLIC-KEY CRYPTOGRAPHY? What does PUBLIC-KEY CRYPTOGRAPHY mean? PUBLIC-KEY CRYPTOGRAPHY meaning - PUBLIC-KEY CRYPTOGRAPHY definition - PUBLIC-KEY CRYPTOGRAPHY explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Public-key cryptography, or asymmetric cryptography, is any cryptographic system that uses pairs of keys: public keys that may be disseminated widely paired with private keys which are known only to the owner. There are two functions that can be achieved: using a public key to authenticate that a message originated with a holder of the paired private key; or encrypting a message with a public key to ensure that only the holder of the paired private key can decrypt it. In a public-key encryption system, any person can encrypt a message using the public key of the receiver, but such a message can be decrypted only with the receiver's private key. For this to work it must be computationally easy for a user to generate a public and private key-pair to be used for encryption and decryption. The strength of a public-key cryptography system relies on the degree of difficulty (computational impracticality) for a properly generated private key to be determined from its corresponding public key. Security then depends only on keeping the private key private, and the public key may be published without compromising security. Public-key cryptography systems often rely on cryptographic algorithms based on mathematical problems that currently admit no efficient solution—particularly those inherent in certain integer factorization, discrete logarithm, and elliptic curve relationships. Public key algorithms, unlike symmetric key algorithms, do not require a secure channel for the initial exchange of one (or more) secret keys between the parties. Because of the computational complexity of asymmetric encryption, it is usually used only for small blocks of data, typically the transfer of a symmetric encryption key (e.g. a session key). This symmetric key is then used to encrypt the rest of the potentially long message sequence. The symmetric encryption/decryption is based on simpler algorithms and is much faster. Message authentication involves hashing the message to produce a "digest," and encrypting the digest with the private key to produce a digital signature. Thereafter anyone can verify this signature by (1) computing the hash of the message, (2) decrypting the signature with the signer's public key, and (3) comparing the computed digest with the decrypted digest. Equality between the digests confirms the message is unmodified since it was signed, and that the signer, and no one else, intentionally performed the signature operation — presuming the signer's private key has remained secret. The security of such procedure depends on a hash algorithm of such quality that it is computationally impossible to alter or find a substitute message that produces the same digest - but studies have shown that even with the MD5 and SHA-1 algorithms, producing an altered or substitute message is not impossible. The current hashing standard for encryption is SHA-2. The message itself can also be used in place of the digest. Public-key algorithms are fundamental security ingredients in cryptosystems, applications and protocols. They underpin various Internet standards, such as Transport Layer Security (TLS), S/MIME, PGP, and GPG. Some public key algorithms provide key distribution and secrecy (e.g., Diffie–Hellman key exchange), some provide digital signatures (e.g., Digital Signature Algorithm), and some provide both (e.g., RSA). Public-key cryptography finds application in, among others, the information technology security discipline, information security. Information security (IS) is concerned with all aspects of protecting electronic information assets against security threats. Public-key cryptography is used as a method of assuring the confidentiality, authenticity and non-repudiability of electronic communications and data storage.
Views: 827 The Audiopedia
Subscribe === https://goo.gl/7FkfFU === In this video I share my honest opinion about day trading Crypto How to make money with Crypto and ICOs http://thecryptosphere.co/webinar How To Go From Zero To Hero and Make $85,000-$145,000 A Year As A Blockchain Developer (Without Any Programming Background) http://thecryptosphere.co/coding-webinar If you want to start your own online business, I recommend E-commerce & Shopify. My friends make $50,000/month with their own stores. You can learn how to do it here: http://thecryptosphere.co/ecom NEO Review https://www.youtube.com/watch?v=F9YWHqDzSPI&index=121&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi Ethereum Review https://www.youtube.com/watch?v=aZO55cB2wUI&index=137&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi Stellar (XLM) - In-Depth Honest Review https://www.youtube.com/watch?v=R9IRIsJp6gI&t=56s&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi&index=132 Ripple Review https://www.youtube.com/watch?v=i7R0Ly4fpCU&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi&index=125 EOS VS Ethereum VS NEO https://www.youtube.com/watch?v=M_8GybdaOjk&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi&index=130 Holding Bags of Neo/ICON/Wanchain/EOS/Ontology? Watch This Video https://www.youtube.com/watch?v=atcuoBU7dsE&index=109&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi EOS Review https://www.youtube.com/watch?v=LmGSBM_ftQs&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi&index=128 Ontology Review https://www.youtube.com/watch?v=PH6lS3zEr9s&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi&index=124 Zilliqa Review https://www.youtube.com/watch?v=1kjT7Mt0hT0&index=107&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi Tron Review https://www.youtube.com/watch?v=XG4GTj5YXjc&t=0s&index=114&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi VeChain Review https://www.youtube.com/watch?v=JJselxYq4io&t=0s&index=117&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi Bear Market Action Plan - What You Should Do + My Personal Plan https://www.youtube.com/watch?v=gvtbEEYNte0&index=119&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi Cardano Review https://www.youtube.com/watch?v=4lUjwiuN2nc&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi&index=130 Monero Review - The #1 Privacy Coin? https://www.youtube.com/watch?v=MPo1Kj7aEjQ&index=149&list=PLyChSPVKnGE61OcKeLpLLpy9OFf4aNVXi
Views: 502 Dvir Oren
This is part of a series of lectures by Luis Caffarelli on the regularity of solutions of elliptic equations.
Views: 2635 MathSciResInst
RIPEMD 160 hash algorithm https://hash.onlinetoolsland.com/ripemd/ The whole name of RIPEMD is RACE Integrity Primitives Evaluation Message Digest. RIPEMD a family of cryptographic hash functions developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel RIPEMD is published in 1996. RIPEMD-160 is an improved version of the original RIPEMD RIPEMD-160 has a 160-bit length ,and is the most common used version in the RIPEMD family. there are 128, 256 and 320-bit versions of RIPEMD algorithm,RIPEMD-128 is designed to replacement for the original RIPEMD. In 2004, a hash collision was reported for the original RIPEMD algorithm . The RIPEMD-160 hash algorithm is open to the public from the beginning , unlike the sha-1 and sha-2 algorithms. Which is developed by the NSA. https://hash.onlinetoolsland.com/ripemd/ The RIPEMD-160 hash algorithm is not used as frequently as the SHA-1 algorithm , but it is not get constrained by any patents. The 128 bit RIPEMD-128 was invented as a replacement for the initial RIPEMD algorithm , the initial RIPEMD algorithm was also 128 bit, but the security of the original RIPEMD algorithm is questionable. The RIPEMD-256 and RIPEMD-320 versions only diminish the possibility of accidental collision, but their security level is not as high as the RIPEMD-128 and RIPEMD-160 algorithm . The RIPEMD-160 hash algorithm contain 160bit data, which is also known as the RIPE message digests, the 160 bit data is represented as 40-digit hexadecimal numbers. The following data show us a 43 byte length of ascii input and the result RIPEMD-160 hash: RIPEMD-160("The quick brown fox jumps over the lazy dog") = 37f332f68db77bd9d7edd4969571ad671cf9dd3b The RIPEMD-160 also act just with the avalanche effect which is common in all cryptographic hash functions (small changes, e.g. changing d to c, result in a completely different hash) RIPEMD-160("The quick brown fox jumps over the lazy cog") = 132072df690933835eb8b6ad0b77e7b6f14acad7 The RIPEMD hash is a collection of several cryptographic hash functions. It compete with the MD hash family and the SHA hash family. The original RIPEMD hash algorithm is designed as a variation of the md4 hash algorithm , in fact there are 2 MD4 algorithm. The RIPEMD algorithm is not as efficient as the MD5 hash algorithm. And because it is based on MD4 , there are some doubt that is also contain some weakness that the MD4 hash algorithm has, for example the collisions flaw Because the concerns, the author of the RIPEMD make a new hash algorithm called the RIPEMD-160. The RIPEMD-160 algorithm is quite good, and robust. Compare the permance between the sha 1 and RIPEMD-160 , the RIPEMD-160 is a bit slower ,so it is not used widely as the SHA-1 algorithm. One of the main useage for the RIPEMD-160 is inside the PGP. That is because as a sign of defiance against governmental agencies, the pgp chose the RIPEMD-160 over SHA-1 hash algorithm The RIPEMD-256 is a 256-bit version of RIPEMD-160 algorithm, but it is not widely used compare to the sha hash family such as the sha 2. So this is why the RIPEMD hash algorithm is not widely used. The difference the RIPEMD-160 or RIPEMD-256 algorithm Some people will ask which RIPEMD hash to use, the RIPEMD-160 or RIPEMD-256. At first glance , the RIPEMD-160 seems a quite good hash algorithm, but as the growth of current computing .the RIPEMD-160 output is a bit short. (if you want to generate encryption with 128-bit keys, you should, go for the hash algorithm functions with 256-bit output) and the RIPEMD-160 computing speed is not very good compare to other same level algorithm, so may be you can get better performance if you go with the SHA-256, which has more optimized implementations The RIPEMD-256 implementation is a new one compare to its cousins . but it is not quite popular, not many reaserch have done on it , so you should take more caution, if you want to use it on your commercial product. Since the 128 bit hash result no longer stand against the brutal force collision attack At Crypto 2004 several Chinese crypto scientists announced that they found collisions for MD4, MD5, RIPEMD, and the 128-bit version of HAVAL. So the RIPEMD-160 is designed as a improved version of the RIPEMD-128 hash result. And is expected to be secure for the next ten years or more. https://hash.onlinetoolsland.com/ripemd/ The RIPEMD -160 is tuned for the 32-bit processors. The RIPEMD-256 and RIPEMD-320 hash algorithm are extensions of RIPEMD-128 and RIPEMD-160. They are designed as a longer hash result without the need of a larger security level. Where can I find a detailed description of RIPEMD-160 hash algorithm
Views: 122 video video
http://victoriastaffordapsychicinvestigation.wordpress.com/ http://theideagirlsays.wordpress.com/ http://www.twitter.com/theideagirl 5g force ufo engine acceleration plasma formulas part 284c3c of 100 videos there are more videos after this one i'll post all then update the #. Math Equation Wow Seti 1977 radio signal alien Wow SETI 1977 radio signal alien 11/111/1/1/14=0.0071 Google 0.0071 Google 11 111 1 1 14 726 pm edt 22 July 2012 My thoughts: G = 1 is a key number because it represents "speed" here as in the UFO Engine 5g FORCE formula of ideas. Key words - Complex Torus, manifolds see next videos.
Views: 57 theideagirlsays
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: 17147 MIT OpenCourseWare
Shipping a Solid Rust Crate by Michael Gattozzi There's a lot more to releasing a quality crate than just the code. Automating the testing to make sure nothing breaks, checking for test coverage, making sure there are examples, providing documentation are important in making your crate solid and easy to use. Beyond that how do you get people to actually use your crate? You might not know how to increase the visibility of your crate or of small things that can be done to get interest in your crate. This talk covers all of these aspects to help improve the quality of ones crate beyond the code itself.
Views: 1946 Rust
CloudFlare hosts regular meetups in its San Francisco office. In the latest meetup, we invited people from academia and industry to talk about the interesting cryptographic algorithms or protocols they are working on. From hyperelliptic curves, lattice-based cryptography, new block chain modes, fully homomorphic cryptography, memory-hard hashing algorithms, to more obscure and promising ideas, this is the place to geek out. Trevor Perrin is an independent consultant who designs and reviews cryptographic systems. There's been a recent surge of interest in end-to-end security for applications like chat, text messaging, and email. Besides deployment of existing protocols like OTR, PGP, and S/MIME, a number of projects are working on "next-generation" protocols to improve usability and security, protect new forms of communication. Trevor discusses a few such protocol designs, focusing on TextSecure and Pond as examples.
Views: 1167 Cloudflare
FUNDAMENTALS Consensus Method (Work, Stake, Other hybrid, N/A): Stake. XRB is based on Directed Acyclic Graph, similar to IOTA. Senders and recipients order their own transactions (ie not miners) and have a balance weighted vote on conflicting transactions (Somewhat a delegated proof-of-stake model of consensus). Type (Infastructure, Dapp, Currency): Currency Open Source? Yes - https://github.com/clemahieu/raiblocks/ MVP / Prototype / Working Product? Yes, network and wallet established – code available Hasing Algorithm: SHA3/Blake2, ED25519 elliptical curve – some believe better than bitcoin’s curve - controversial Team (general impression): Small. Essentially spearheaded by lead dev Colin: https://www.linkedin.com/in/clemahieu/ Team listed here: https://raiblocks.net/page/aboutus.php Value Prop (why this needs a token / blockchain in one sentence): Solution to the ailments of bitcoin and other proof-of-work coins, providing unlimited transaction throughput (scalable, fast) with zero network fees. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Green Flags: • No ICO – distributed via solving captchas (faucets) • Project coded out of passion – no funding • Colin – lead dev – is an all-star – rich programming background including Dell, Amazon, AMD • Well written traditional whitepaper Yellow Flags: • Small team – essentially just Colin and community managers / web devs. Names and LinkedIn not available. • One of the first DAG cryptos – among DagCoin, Byteball, and IOTA – this is innovative but also new technology which could produce its own set of problems as it scales. o No cryptocurrency has been tested at the scale of BTC yet. Red Flags: None that I noticed (but keep in mind this wasn’t a full comprehensive review). If you know of any glaring flaws, please let me know in the comments! ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Other reviews: https://www.youtube.com/watch?v=CrkiVcxXfI4 https://www.youtube.com/watch?v=yMyB8ao8W9o https://www.youtube.com/watch?v=o8aLOAWiDio How to buy: https://www.youtube.com/watch?v=aWYTDa0yus8 Beginner’s guide: https://captainaltcoin.com/raiblocks-cryptocurrency/ ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ For updates, subscribe to my channel and/or follow me on your preferred platform(s): Content: ✦Twitter: https://twitter.com/Reedus33 ✦Steemit: https://steemit.com/@reedus ✦Medium: https://medium.com/@reedus Video: ✦DTube: https://d.tube/#!/c/reedus ✦Vimeo: https://vimeo.com/channels/thecryptoclub ✦YouTube: https://www.youtube.com/channel/UCtDl4hm6GkvbI0mHOBNfRrA ICO Rating Sites: ✦https://concourseq.io/U/CryptoReedus ✦https://icobench.com/u/cryptoreedus Altpocket: https://altpocket.io/user/CryptoReedus ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Patreon for anyone who would like to support me and get access to more exclusive content: https://www.patreon.com/reedus ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Get wicked crypto clothing: https://procrypto.net/ref/23/ ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 10% OFF the most comprehensive crypto portfolio tracker: https://cointracking.info?ref=R452552 Cheaper alternative (but less features): https://altpocket.io/?ref=XNt4PO6d9R ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Connect with or contact me: https://www.linkedin.com/in/reed33/ https://21.co/reedus/ ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Don’t forget to: 1. Press LIKE; 2. SHARE with others; 3. SUBSCRIBE to this channel; 4. COMMENT! ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ © 2018 The Crypto Club ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ #bitcoin #blockchain #crypto #cryptocurrency #investing #topcrypto #bestcrypto #ethereum #btc #eth #cryptodaily #topcryptoyoutubers #youtubechannel #steemit #technalysis #technicalanalysis #topcryptocurrency #topcryptocurrencytoinvest #topcrypto #topcryptocorrency2018 #topcryptocurrencytoinvestin2018 #bestcryptocurrencytoinvestin2018 #bestcryptocurrencytoinvest #bestcryptocurrency #bestcrypto #bestcryptocurrencytobuy #topcrypto2018 #topcryptotoinvest #bestcryptotoinvest #bitcoin #btc #ethereum #eth #neo #lisk #lsk #ark #cardano #navcoin #nav #ltc #ripple #cryptodaily #topcryptoyoutubers #bestcryptoyoutubers #youtubechannel
Views: 166 The Crypto Club
#United States' National Institute of Standards and #Technology "With the public's participation," #NIST's Cryptographic Technology Group says in a blog post (https://goo.gl/DZRVhS), "NIST intends to spend the next few years gathering, testing and ultimately recommending new algorithms that would be less susceptible to a quantum computer's attack." The development of "new public-key cryptography standards will specify one or more additional unclassified, publicly disclosed digital signature, public-key encryption, and key establishment algorithms that are capable of protecting sensitive government information well into the foreseeable future, including after the advent of quantum computers," the agency says (https://goo.gl/8rnFmH). -------------------------------------- You can see the playlist: - Breaking news: https://goo.gl/wyqG6i - Life skills: https://goo.gl/UoRrct - SE Optimization: https://goo.gl/XDkc17 *Website: http://ictblogs.net/ *Facebook: http://facebook.com/vnwpages/ *Twitter: https://twitter.com/ictblogsnet
Views: 283 ICT Blog's
Small devices are unable to communicate with constrained resources. In addition to that Internet of things (IOT) has to take care of heterogeneity. As billions of different sensors, computers , and other communication elements need to be connected together, which may work on different protocols. Therefore, to tackle this problem Internet Engineering Task Force (IETF) has developed Constrained Application Protocol (CoAP). It is one of the largest application protocols meant for IOT. Links and References : https://zaidmufti.wordpress.com/2016/08/23/coap-an-application-layer-protocol-for-smart-dust/ http://www.cse.wustl.edu/~jain/cse574-14/ftp/coap/ https://community.arm.com/servlet/JiveServlet/previewBody/8633-102215471/ARM%20CoAP%20Tutorial%20April%2030%202014.pdf https://www.youtube.com/watch?v=COrbBi4c0HI
Views: 3858 AKIF MUFTI