Search results “Why cryptosystems fail pdf”
Digital Signature Validation Problem
E-District Certificate Validation Problems Kerala
Views: 50912 Jithin Raj
Online privacy is a first amendment right and why encryption is NOT a munition
Some people think privacy doesn't matter as long as you have nothing to hide. But online privacy is a form free speech. Despite government efforts, encryption is not a munition and source code is speech protected under the first amendment. If you like to protect yourself on the web and want to support my channel, sign up for NordVPN at https://nordvpn.org/thehatedone or use my coupon code 'thehatedone' at the checkout to save 66% on the 2-year plan! Bitcoin: 1C7UkndgpQqjTrUkk8pY1rRpmddwHaEEuf Dash Xm4Mc5gXhcpWXKN84c7YRD4GSb1fpKFmrc Litecoin LMhiVJdFhYPejMPJE7r9ooP3nm3DrX4eBT Ethereum 0x6F8bb890E122B9914989D861444Fa492B8520575 In the 1990s, the government fiercely attacked online privacy by classifying encryption software as a munition, and regulating it as biological weapons or firearms. Exporting encryption was heavily restricted, required a government license, and made its implementation on the Internet virtually impossible. In 1991 Phil Zimmerman developed his first version of an encryption program called Pretty Good Privacy designed to secure email communications, files or even entire disks. Two years later, Zimmerman was under criminal investigation for exporting munitions without a license and was barred from sharing his software on the Internet. Zimmerman published the whole PGP source code in a hardcover book distributed by MIT Press. In a digital form, PGP was an outlawed piece of software. But printed in a book, it was free speech protected by the Constitution. In 1994, a graduate student at the University of California was developing an encryption algorithm that he intended to publish, distribute and share openly on public lectures and on the Internet. However, the US Department of State classified his cryptographic software under the Arms Export Control Act and the International Traffic in Arms Regulations. After several years of legal battles, the court eventually decided that Bernstein’s source code is protected by the Constitution. The judge ruled that code is speech. Online privacy protects you from censorship. Encryption allows you to express yourself publicly but anonymously. It lets you develop and try ideas before you are comfortable to share them with others. It gives you a space with your own borders where you are free from judgment and control. The first amendment grants you the right to encrypted speech. Sources Legal cases https://www.eff.org/cases/bernstein-v-us-dept-justice https://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?referer=&httpsredir=1&article=1180&context=btlj https://www.eff.org/deeplinks/2015/04/remembering-case-established-code-speech https://www.eff.org/deeplinks/2005/07/eff15-phone-call https://www.eff.org/press/archives/2008/04/21-40 https://www.eff.org/press/archives/2008/04/21-29 https://www.eff.org/press/archives/2008/04/21-42 https://www.eff.org/deeplinks/2014/09/nine-epic-failures-regulating-cryptography https://law.stackexchange.com/questions/3696/is-the-right-to-keep-and-bear-crypto-protected-by-the-second-amendment Other https://networkingnerd.net/2016/03/16/thoughts-on-encryption/ http://www.cypherspace.org/rsa/legal.html https://www.millercanfield.com/resources-417.html https://www.gpo.gov/fdsys/pkg/FR-2018-08-30/pdf/2018-18771.pdf#page=1 https://www.ecfr.gov/cgi-bin/text-idx?node=pt22.1.121 https://www.law.cornell.edu/cfr/text/22/121.1 https://www.washingtonpost.com/wp-srv/politics/special/encryption/encryption.htm??noredirect=on https://www.nytimes.com/1996/11/08/business/us-classifies-a-device-to-surf-the-web-as-a-weapon.html https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html https://en.wikipedia.org/wiki/Pretty_Good_Privacy#cite_ref-zimmermann2_16-0 Music by CO.AG Music https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvA Follow me: https://twitter.com/The_HatedOne_ https://www.bitchute.com/TheHatedOne/ https://www.reddit.com/user/The_HatedOne/ https://www.minds.com/The_HatedOne The footage and images featured in the video were for critical analysis, commentary and parody, which are protected under the Fair Use laws of the United States Copyright act of 1976.
Views: 8504 The Hated One
How to Break Cryptography | Infinite Series
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: 182775 PBS Infinite Series
DEFCON 19: Sneaky PDF (w speaker)
Speaker: Mahmud Ab Rahman Specialist, CyberSecurity Malaysia Being a most prevalent document exchange format on the Internet, Portable Document Format (PDF) is in danger of becoming the main target for client-side attack. With estimation of more than 1.5 million line of code and loaded with huge functionalities, this powerful document format is suffered with several high impact vulnerabilities, allowing attackers to exploit and use it as malware spreading vector. Until now, there are thousands of malicious PDF file spreads with little chances of getting detected. The challenges are obfuscation techniques used by the attackers to hide their malicious activities, hence minimizing detection rate. In order to sustain the survival of malicious PDF file on the Internet, attackers circumvent the analysis process through diverse obfuscation techniques. Obfuscation methods used usually ranges from PDF syntax obfuscation, PDF filtering mechanism, JavaScript obfuscation, and variant from both methods. Because of rapid changes in methods of obfuscation, most antivirus software as well as security tools failed to detect malicious content inside PDF file, thus increasing the number of victims of malicious PDF mischief. In this paper, we study in the obfuscation techniques used inside in-the-wild malicious PDF, how to make it more stealthy and how we can improve analysis on malicious PDF. For more information visit: http://bit.ly/defcon19_information To download the video visit: http://bit.ly/defcon19_videos Playlist Defcon 19: http://bit.ly/defcon19_playlist
Views: 1894 Christiaan008
Stanford Seminar - The Evolution of Public Key Cryptography
EE380: Computer Systems Colloquium Seminar The Evolution of Public Key Cryptography Speaker: Martin Hellman, Stanford EE (Emeritus) While public key cryptography is seen as revolutionary, after this talk you might wonder why it took Whit Diffie, Ralph Merkle and Hellman so long to discover it. This talk also highlights the contributions of some unsung (or "under-sung") heroes: Ralph Merkle, John Gill, Stephen Pohlig, Richard Schroeppel, Loren Kohnfelder, and researchers at GCHQ (Ellis, Cocks, and Williamson). Resources and Reading Materials M. E. Hellman, Cybersecurity, Nuclear Security, Alan Turing, and Illogical Logic (http://www-ee.stanford.edu/ %7Ehellman/publications/77.pdf), Communications of the ACM, Vol. 60, No. 12, pp. 52-59, December 2017. This is a written version of Martin Hellman's ACM Turing Lecture (https://www.youtube.com/watch?v=I132wSwAI3o) and was accompanied by a short (6 minute) video (https://vimeo.com/241030842). Other materials and hard to find references can be found on Martin Hellman's Stanford website, http://www-ee.stanford.edu/~hellman/ . About the Speaker: Martin E. Hellman is Professor Emeritus of Electrical Engineering at Stanford University and is affiliated with the university's Center for International Security and Cooperation (CISAC). His recent technical work has focused on bringing a risk informed framework to a potential failure of nuclear deterrence and then using that approach to find surprising ways to reduce the risk. His earlier work included co- inventing public key cryptography, the technology that underlies the secure portion of the Internet. His many honors include election to the National Academy of Engineering and receiving (jointly with his colleague Whit Diffie) the million dollar ACM Turing Award, the top prize in computer science. His most recent project is a book, jointly written with his wife of fifty years, "A New Map for Relationships: Creating True Love at Home & Peace on the Planet," that provides a "unified field theory" of peace by illuminating the connections between nuclear war, conventional war, interpersonal war, and war within our own psyches. For more information about this seminar and its speaker, you can visit https://ee380.stanford.edu/Abstracts/180307.html Support for the Stanford Colloquium on Computer Systems Seminar Series provided by the Stanford Computer Forum. Colloquium on Computer Systems Seminar Series (EE380) presents the current research in design, implementation, analysis, and use of computer systems. Topics range from integrated circuits to operating systems and programming languages. It is free and open to the public, with new lectures each week. Learn more: http://bit.ly/WinYX5
Views: 1780 stanfordonline
20. Mobile Phone Security
MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses the Android platform and its security design. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 11185 MIT OpenCourseWare
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: 140544 Khan Academy
The Cryptographic Service in Windows 7
Provides four management services: Catalog Database Service, which confirms the signatures of Windows files and allows new programs to be installed; Protected Root Service, which adds and removes Trusted Root Certification Authority certificates from the computer; Automatic Root Certificate Update Service, which retrieves root certificates from Windows Update and enable scenarios such as SSL; and Key Service, which helps enroll the computer for certificates. If this service is stopped, these management services will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.
Views: 46178 Marc Liron
Exclusive Video Evidence of NASA & Space X Green Screenery, Trickery and Space Fakery - the Fake ISS
This amazing video is proudly presented by our sponsor || SIZZLE CITY || Strings of Bling and Other Shiny Things || Call or Visit Us Today || www.SizzleCity.com || 626.274.6028 || The Digital Denial Act AKA The National and Commercial Space Program Act and All Related Laws and Regulations of Space. National and Commercial Space Programs Act (NCSPA or Act), 51 U.S.C. § 60101, et seq https://www.nesdis.noaa.gov/CRSRA/files/National_and_Commercial_Space_Programs_Act_60101.pdf - https://gizmodo.com/an-obsolete-law-prohibits-spacex-from-broadcasting-vide-1825047292 NOAA - Commercial Remote Sensing Regulatory Affairs https://www.nesdis.noaa.gov/CRSRA/ House committee passes commercial space regulatory bill http://spacenews.com/house-committee-passes-commercial-space-regulatory-bill/ House bill seeks to streamline oversight of commercial space activities http://spacenews.com/house-bill-seeks-to-streamline-oversight-of-commercial-space-activities/ Gunter's Space Page http://space.skyrocket.de/ lawyers and business executives recommended against making any changes to the 50-year-old treaty. http://spacenews.com/companies-lawyers-argue-against-changing-outer-space-treaty/ Outer Space Treaty http://spacenews.com/companies-lawyers-argue-against-changing-outer-space-treaty/ CRSRA Organizational Chart https://www.nesdis.noaa.gov/CRSRA/files/CRSRA_at_NOAA.pdf Code of Federal Regulations (CFR) at 15 CFR Part 960 https://www.nesdis.noaa.gov/CRSRA/files/15%20CFR%20Part%20960%20Regs%202006.pdf Data Protection Plan https://www.nesdis.noaa.gov/CRSRA/files/DPP%20Template.pdf Data Protection Plan for Foreign Agreements https://www.nesdis.noaa.gov/CRSRA/files/DPP%20-%20FA%20draft.pdf Memorandum or Understanding Among the Departments of Commerce, State, Defense, and Interior, and the Office or the Director of National Intelligence, Concerning the Licensing and Operations of Private Remote Sensing Satellite Systems https://www.nesdis.noaa.gov/CRSRA/files/crs_mou_2017_eSigned.pdf Advanced Encryption Standard Specification (FIPS 197) https://www.nesdis.noaa.gov/CRSRA/files/AES%20fips-197.pdf Security Requirements for Cryptographic Modules (FIPS-140-2) https://www.nesdis.noaa.gov/CRSRA/files/fips1402.pdf This may not be news to most of you, but maybe I can enlighten only a few with this video so we have to give it a try. I have a very love / hate relationship with NASA and Space X. I don't want to sway anyones' opinion but in my own opinion I have come to the conclusion that these agencies have been stealing tax payer money for decades and giving us nothing in return but fake imagery and video footage. This isn't just another fake ISS video or NASA lies video. The reason why is because I have EXCLUSIVE footage not seen anywhere else on YouTube. The footage I will present today in this video is evidence of NASA & Space X using green screen, trickery and fakery. In this video we will cover the hot air balloon program used by NASA, NOAA, the AIRFORCE and so many others in Antarctica to send temporary satellites out into space. $80 Million to send a temporary satellite into space knowing it will crash back down to Earth only months later. I have so many questions that only make for more questions. This agency has successfully turned the public against one another on the topic and split us right down the middle. I have done extensive research to answer these questions and at this time have decided to give them the benefit of the doubt about space travel but I am positive the footage they send back is 100% fake. Why you may ask? Well because space is a military zone and so is the Moon. One day our own skies will be as well and NASA frankly doesn't have the clearance to go up there any longer. Unfortunately the public and tax payers are the ones that suffer the most. We've been lied to our whole lives: Space, Planets, Black Holes Space Travel and even the shape of the Earth we live on have all been faked, green screens and manipulated to the Jesuit Order propagranda liking and narrative. The Jesuit Order and the Vatican have been secret running our country along with the Queen of English for Millenia. It's time that the lies are brought to the surface. I've presented you with everything you need to make your own determination about the trickery and fakery put on by NASA and Space X. Exclusive video evidence of NASA & Space X using green screens, trickery and faking space along with the ISS - the International Space Station. Thank you so much for watching, don't forget to like, share and subscribe. Please be good to one another and of course always be good to yourself. Please use this opportunity to prepare for the worst and always hope for the best.
Views: 6843 Boogie Man
Breaking ECDSA (Elliptic Curve Cryptography) - rhme2 Secure Filesystem v1.92r1 (crypto 150)
We are going to recover a ECDSA private key from bad signatures. Same issue the Playstation 3 had that allowed it to be hacked. -=[ 🔴 Stuff I use ]=- → Microphone:* https://amzn.to/2LW6ldx → Graphics tablet:* https://amzn.to/2C8djYj → Camera#1 for streaming:* https://amzn.to/2SJ66VM → Lens for streaming:* https://amzn.to/2CdG31I → Connect Camera#1 to PC:* https://amzn.to/2VDRhWj → Camera#2 for electronics:* https://amzn.to/2LWxehv → Lens for macro shots:* https://amzn.to/2C5tXrw → Keyboard:* https://amzn.to/2LZgCFD → Headphones:* https://amzn.to/2M2KhxW -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #CTF #Cryptography
Views: 28720 LiveOverflow
Ever wonder how Bitcoin (and other cryptocurrencies) actually work?
Bitcoin explained from the viewpoint of inventing your own cryptocurrency. Videos like these made possible by patreon: https://patreon.com/3blue1brown Protocol Labs: https://protocol.ai/ Interested in contributing? https://protocol.ai/join/ Special thanks to the following patrons: http://3b1b.co/btc-thanks Some people have asked if this channel accepts contributions in cryptocurrency form as an alternative to Patreon. As you might guess, the answer is yes :). Here are the relevant addresses: ETH: 0x88Fd7a2e9e0E616a5610B8BE5d5090DC6Bd55c25 BTC: 1DV4dhXEVhGELmDnRppADyMcyZgGHnCNJ BCH: qrr82t07zzq5uqgek422s8wwf953jj25c53lqctlnw LTC: LNPY2HEWv8igGckwKrYPbh9yD28XH3sm32 Supplement video: https://youtu.be/S9JGmA5_unY Music by Vincent Rubinetti: https://soundcloud.com/vincerubinetti/heartbeat Here are a few other resources I'd recommend: Original Bitcoin paper: https://bitcoin.org/bitcoin.pdf Block explorer: https://blockexplorer.com/ Blog post by Michael Nielsen: https://goo.gl/BW1RV3 (This is particularly good for understanding the details of what transactions look like, which is something this video did not cover) Video by CuriousInventor: https://youtu.be/Lx9zgZCMqXE Video by Anders Brownworth: https://youtu.be/_160oMzblY8 Ethereum white paper: https://goo.gl/XXZddT If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then "add subtitles/cc". I really appreciate those who do this, as it helps make the lessons accessible to more people. Music by Vince Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 2368719 3Blue1Brown
Bitcoin Q&A: What are Bulletproofs?
What are Bulletproofs? What is a range proof? Why is encrypting amounts important for financial privacy? How does it use non-interactive zero-knowledge proofs to hide amounts without risking inflation? Confidential Transactions by Greg Maxwell: https://people.xiph.org/~greg/confidential_values.txt "Bulletproofs: Short Proofs for Confidential Transactions and More" - http://web.stanford.edu/~buenz/pubs/bulletproofs.pdf This question is from the September monthly Patreon session, which took place on September 29th 2018. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Worse Than Useless: Financial Surveillance - https://youtu.be/n4F-h4xuXMk Fungibility, privacy, anonymity - https://youtu.be/y3s8c7YDtXU Mixing services - https://youtu.be/rKoMvOH4zoY Altcoins and specialisation - https://youtu.be/b_Yhr8h6xnA The price of losing privacy - https://youtu.be/2G8IgiLbT_4 The war on cash and crypto - https://youtu.be/BAlRKfvBnvw MimbleWimble and Schnorr signatures - https://youtu.be/qloq75ekxv0 MimbleWimble and Dandelion - https://youtu.be/LjDJGTpK_lE Schnorr signatures and the privacy roadmap - https://youtu.be/JeJzwZgxF50 Coin selection and privacy - https://youtu.be/3Ck683CQGAQ Atomic swaps - https://youtu.be/fNFBA2UmUmg Decentralised exchanges with fiat - https://youtu.be/3Url8tbQEkA Decentralised exchanges and counterparty risk - https://youtu.be/hi_jaw0dT9M The Lightning Network - https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi How do I choose a wallet? - https://youtu.be/tN6b62sEpsY Hot vs. cold wallets - https://youtu.be/Aji_E9sw0AE Secure, tiered storage system - https://youtu.be/uYIVuZgN95M How do I secure my bitcoin? - https://youtu.be/vt-zXEsJ61U HODLing and the "get free" scheme - https://youtu.be/MhOwmsW1YNI How to get people to care about security - https://youtu.be/Ji1lS9NMz1E Airdrop coins and privacy implications - https://youtu.be/JHRnqJJ0rhc Bitcoin as everyday currency - https://youtu.be/xYvvSV4mjH0 Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. Subscribe to the channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos! MASTERING BITCOIN, 2nd Edition: https://amzn.to/2xcdsY9 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ THE INTERNET OF MONEY, v1: https://amzn.to/2ykmXFs THE INTERNET OF MONEY, v2: https://amzn.to/2IIG5BJ Translations of THE INTERNET OF MONEY: Spanish, 'Internet del Dinero' (v1) - https://amzn.to/2yoaTTq French, 'L'internet de l'argent' (v1) - https://www.amazon.fr/Linternet-largent-Andreas-M-Antonopoulos/dp/2856083390 Russian, 'Интернет денег' (v1) - https://www.olbuss.ru/catalog/ekonomika-i-biznes/korporativnye-finansy-bankovskoe-delo/internet-deneg Vietnamese, 'Internet Của Tiền Tệ' (v1) - https://alphabooks.vn/khi-tien-len-mang MASTERING ETHEREUM (Q4): https://amzn.to/2xdxmlK Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 6724 aantonop
Spearing Superfish with HPKP w/ Stuart Larsen
Stuart Larsen - Spearing Superfish with HPKP - NYC Cyber Security meetup, MongoDB NYC on May 20 2015. ABSTRACT HTTP Public Key Pinning (HPKP) is a new HTTP header that tells web clients to associate a specific cryptographic public key with a web server to prevent MITM attacks with forged certificates. This talk will give an introduction to HPKP, discuss why it’s useful, and how it can be used to stop Superfish and other forged certificate SSL/TLS attacks. SLIDES https://c0nrad.io/hpkp.pdf­ SPEAKER Stuart Larsen - http://c0nrad.io/ EVENT PAGE http://www.meetup.com/OWASP-NYC/events/219961013/ EVENT ORGANIZER OWASP NYC Chapter - https://www.owasp.org/index.php/NYC VIDEO SPONSOR: Internet Society NY Chapter - http://isoc-ny.org ABOUT OWASP: The Open Web Application Security Project (OWASP) is a 501(c)(3) worldwide not-for-profit charitable organization focused on improving the security of software. Our mission is to make software security visible, so that individuals and organizations worldwide can make informed decisions about true software security risks. https://www.owasp.org/
Views: 1750 HACK NYC
Denial of Service - CompTIA Security+ SY0-501 - 1.2
Security+ Training Course Index: http://professormesser.link/sy0501 Professor Messer’s Course Notes: http://professormesser.link/501cn Frequently Asked Questions: http://professormesser.link/faq - - - - - If your services aren’t working, then you are effectively out of business. In this video, you’ll learn how denial of service attacks are used to prevent access to your important business systems. - - - - - 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: 49564 Professor Messer
Miller-Rabin primality test
The Miller-Rabin primality test: https://en.wikipedia.org/wiki/Miller%E2%80%93Rabin_primality_test A python implementation of the probabilistic Miller-Rabin primality test. This test runs in polynomial time O(k polylog(p)) and has a negligible probability of failure 4^(-k), making it suitable for cryptographic applications. This video builds up from Fermat's primality test. Watch my previous video where I explain it: https://www.youtube.com/watch?v=qDakpCEW5-0 Euclid's lemma: https://en.wikipedia.org/wiki/Euclid%27s_lemma Fermat's little theorem: https://en.wikipedia.org/wiki/Fermat%27s_little_theorem Soup's number theory book: http://www.shoup.net/ntb/ntb-v2.pdf If you enjoyed this video, please 👍 and +Subscribe. This is one of my first videos. Please leave feedback about what you think I can improve and what other topics you would like to see. I've just created a Patreon where you can buy me a cup of coffee. Thanks so much for supporting me! https://www.patreon.com/dionyziz
Views: 3381 dionyziz
Adobe Acrobat XI Error 16 Fix (Hata 16 Çözümü)
TÜRKÇE ÇÖZÜM İÇİN TIKLAYINIZ: http://geldimgordumcozdum.blogspot.com.tr/2015/08/adobe-acrobat-xi-error-16hata-16.html The folder mentioned at 01:21 : C:\Program Files\Common Files\Adobe\SLCache -OR- C:\Program Files (x86)\Common Files\Adobe\SLCache Adobe cleaner tool. http://labs.adobe.com/downloads/acrobatcleaner.html
My CompTIA Security+ SY0-401 Exam Experience
A quick video about writing and passing my 401 exam.
Views: 5156 Phil Anderson
EB122 – Zooko Wilcox: Zcash - An Open Financial System With Privacy
Support the show, consider donating: 1F1SQTL7zqagxsgjnmoFXx6R9w4tuakFDD (http://bit.ly/1QpeoZv) For Zooko Wilcox-O’Hearn, part of the cypherpunk movement since the early 1990s, the vision of a decentralized financial system that has both openness and privacy has existed since long before Bitcoin. After many failed attempts, Bitcoin proved that that vision could be achievable. But Bitcoin also failed to deliver on the privacy features as blockchain analysis allows tracing movements and deanonymizing many users. Zooko joined us to discuss his project Zcash, a fully anonymous cryptocurrency that is scheduled to launch in July. Through Zcash’s use of ground-breaking Zero Knowledge Proofs (or zkSNARKs) the blockchain will leak no information about sender, recipients nor amounts. It was a fascinating discussion of the most anticipated launch of a cryptocurrency since Ethereum. Topics covered included: - Zooko's long cypherpunk history - How overconfidence derailed many cypherpunk projects - Why Bitcoin's privacy is broken and how Zcash provides true privacy - The too-good-to-be-true Zcash team - Why Zcash is based on a fork of Bitcoin - How the initial parameter generation creates a potential security weakness - Why Zcash believes in an evolutionary approach to designing cryptocurrency protocols Links mentioned in this episode: - Zcash website: http://bit.ly/1p1NZuD - Why Zcash - Project Announcement http://bit.ly/1RwhoUC - Zerocash: Decentralized Anonymous Payments from Bitcoin [PDF] http://bit.ly/1M2uc3o - EB116 - Eli Ben-Sasson: Zero Knowledge Proofs http://bit.ly/1TDUtx1 Sponsors: - GTEC: Apply now to enter the GTEC Blockchain Contest and win prizes worth €50k epicenterbitcoin.com/gtec - Ledger Nano: Smart card security for your Bitcoins - Get 10% off your first order when you use the code EPICENTER at http://ledgerwallet.com Show notes: http://epicenterbitcoin.com/podcast/122 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-122 Epicenter Bitcoin is hosted by Brian Fabian Crain, Sébastien Couture & Meher Roy. - Visit our website: http://epicenterbitcoin.com - Subscribe to our newsletter: http://epicenterbitcoin.com/newsletter - Twitter: http://twitter.com/epicenterbtc
Views: 11708 Epicenter
Quantum hacking - Vadim Makarov part 1
I introduce practical attacks on quantum cryptography, and give several examples of attacks and countermeasures. This is lecture 2 in the series, however if you are familiar with the basics of quantum cryptography (introduced in lecture 1 http://goo.gl/vue6U2), you can start with this lecture. More attack examples, and how the research and manufacturing community handles this security problem will be discussed in lecture 3 http://goo.gl/cQDzFg Presentation slides of the entire lecture course can be downloaded at: Power Point (95 MiB, with videos and animations) - http://www.vad1.com/lab/presentations/Makarov-20140801-IQC-short-course.pptx PDF (14.8 MiB, static images only) - http://www.vad1.com/lab/presentations/Makarov-20140801-IQC-short-course.pdf Vadim Makarov is a research assistant professor at the Institute for Quantum Computing, heading the Quantum hacking lab - http://www.vad1.com/lab/ This course was part of a lecture series hosted by CryptoWorks21 in August 2014 in Waterloo, Canada. Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Hacking Democracy - The Hack
This is the hack that proved America's elections can be stolen using a few lines of computer code. The 'Hursti Hack' in this video is an excerpt from the feature length Emmy nominated documentary 'Hacking Democracy'. The hack of the Diebold voting system in Leon County, Florida, is real. It was verified by computer scientists at UC Berkeley. To watch the full movie, visit http://www.hackingdemocracy.com For updates, visit the official Facebook page at http://www.facebook.com/hackingdemocracyfilm HACKING DEMOCRACY - Directed by Simon Ardizzone and Russell Michaels The disturbingly shocking HBO documentary HACKING DEMOCRACY bravely tangles with our nation’s ills at the heart of democracy. The film the Diebold corporation doesn’t want you to see, this revelatory journey follows tenacious Seattle grandmother Bev Harris and her band of extraordinary citizen-activists as they set out to ask one simple question: How does America count its votes? From Florida and California to Ohio and Washington State, filmmakers Simon Ardizzone, Russell Michaels and Robert Cohen starkly reveal a broken system riddled with secrecy, incompetent election officials, and electronic voting machines that can be programmed to steal elections. Equipped only with a powerful sense of righteous outrage, the activists take on voting machine industry, exposing alarming security holes in America’s trusted voting machines. They even go dumpster diving at a county election official’s office in Florida, uncovering incendiary evidence of miscounted votes. But proving our votes can be stolen without a trace culminates in a duel between Diebold voting machines and a computer hacker from Finland – with America’s democracy at stake. 'Hacking Democracy' was nominated for an Emmy award for Outstanding Investigative Journalism. "Disturbing stuff. . . It's not shocked-shocked you feel watching this; it's genuine shock.' - The New York Times “It is hard to imagine a documentary that is more important to the civic life of the nation — let alone one that is so compelling and ultimately moving" - Baltimore Sun After we filmed the 'Hursti Hack' California's Secretary of State ordered an investigation. The best computer scientists at UC Berkeley analysed the Diebold voting machines' computer source code. The UC Berkeley Report can be found here: https://www.sos.state.tx.us/elections/forms/security_diebold_accubasic.pdf Page 2 of the report states: "Harri Hursti's attack does work. Mr. Hursti's attack on the AV-OS is definitely real. He was indeed able to change the election results by doing nothing more than modifying the contents of a memory card. He needed no passwords, no cryptographic keys, and no access to any other part of the voting system, including the GEMS election management server." We hope that as many people as possible will vote because the bigger the turnout the harder it is for someone to rig the total national results.
Views: 592963 Hacking Democracy
DEF CON 22 - Kenneth White and Matthew Green - The Open Crypto Audit Project
Slides here: https://defcon.org/images/defcon-22/dc-22-presentations/White-Green/DEFCON-22-Kenneth-White-and-Matthew-Green-The-Open-Crypto-Audit-Project-Updated.pdf The Open Crypto Audit Project Kenneth White CO-FOUNDER, OPEN CRYPTO AUDIT PROJECT Matthew Green RESEARCH PROFESSOR, JOHNS HOPKINS UNIVERSITY Join us for the story of the origins and history of the Open Crypto Audit Project (OCAP). OCAP is a community-driven global initiative which grew out of the first comprehensive public audit and cryptanalysis of the widely used encryption software TrueCrypt®. Our charter is to provide technical assistance to free and open source software projects in the public interest. We serve primarily as a coordinator for volunteers and as a funding mechanism for technical experts in security, software engineering, and cryptography. We conduct analysis and research on FOSS and other widely software, and provide highly specialized technical assistance, analysis and research on free and open source software. This talk will present how we audited TrueCrypt, detailing both the Phase I security assessment, and the Phase II cryptanalysis. Looking forward, in light of GotoFail and HeartBleed, we will discuss future plans for our next audit projects of other open source critical infrastructure. Kenneth White is a co-founder of the CBX Group, and formerly principal scientist and senior security R&D engineer at Social & Scientific Systems. His work focuses on cloud security, machine learning, and distributed database architecture. At SSS, White led the Biomedical Informatics team that designed and runs the operations center for the largest clinical trial network in the world, with research centers in over 100 countries. Together with Matthew Green, White co-founded the TrueCrypt audit project, a community-driven initiative to conduct the first comprehensive cryptanalysis and public security audit of the widely used TrueCrypt encryption software. White holds a MEd from Harvard and is a PhD candidate in neuroscience and cognitive science, with research focusing on expert systems, real-time classification and machine learning. He is a technical reviewer for the Software Engineering Institute, and publishes and speaks frequently on computational neuroscience, signal processing, and security engineering. Twitter: @kennwhite Matthew D. Green, PhD is a professor of computer science at Johns Hopkins University. He teaches applied cryptography and builds secure systems. Green trained under Susan Hohenberger and Avi Rubin, and his research includes techniques for privacy-enhanced information storage, anonymous payment systems, and bilinear map-based cryptography. Green formerly served as a senior research staff member at AT&T Labs. Together with Kenneth White, he co-founded the TrueCrypt audit project, a community-driven initiative to conduct the first comprehensive cryptanalysis and public security audit of the widely used TrueCrypt encryption software. He blogs at Cryptography Engineering, and talks about cryptography and privacy. Twitter: @matthew_d_green Web: https://opencryptoaudit.org/people
Views: 3412 DEFCONConference
How to manipulate standards - Daniel J. Bernstein
Slides - https://drive.google.com/file/d/0B241HCXaGuT8UjFzYWFkRkRwM1k/view - Paper - http://safecurves.cr.yp.to/bada55/bada55-20140722.pdf Keywords: Elliptic-curve cryptography, verifiably random curves, verifiably pseudorandom curves, nothing-up-my-sleeve numbers, sabotaging standards, fighting terrorism, protecting the children. LICENSE: You understand and hereby agree that the audio, video, and text of this presentation are provided “as is”, without warranty of any kind, whether expressed or implied, including, without limitation, the implied warranties of merchantability, fitness for a particular purpose or otherwise. Since you are not a blithering idiot, you also understand that Verizon Communications Inc. and the entire Verizon family of companies are not actually associated in any way with the speaker, have not reviewed the contents of this presentation, and are not responsible for the contents of this presentation. Continuing to read, listen to, or otherwise absorb this information constitutes acceptance of this license. Any court dispute regarding this presentation shall be resolved in the state of Illinois in the United States of America.
Views: 2416 anewusername
Cryptographic Hash Functions
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: 12534 nptelhrd
NDSS 2018 - KeyDrown: Eliminating Software-Based Keystroke Timing Side-Channel Attacks
Session 4B: Software Attacks and Secure Architectures 01 KeyDrown: Eliminating Software-Based Keystroke Timing Side-Channel Attacks SUMMARY Besides cryptographic secrets, software-based sidechannel attacks also leak sensitive user input. The most accurate attacks exploit cache timings or interrupt information to monitor keystroke timings and subsequently infer typed words and sentences. These attacks have also been demonstrated in JavaScript embedded in websites by a remote attacker. We extend the stateof-the-art with a new interrupt-based attack and the first Prime+ Probe attack on kernel interrupt handlers. Previously proposed countermeasures fail to prevent software-based keystroke timing attacks as they do not protect keystroke processing through the entire software stack. We close this gap with KeyDrown, a new defense mechanism against software-based keystroke timing attacks. KeyDrown injects a large number of fake keystrokes in the kernel, making the keystroke interrupt density uniform over time, i.e., independent of the real keystrokes. All keystrokes, including fake keystrokes, are carefully propagated through the shared library to make them indistinguishable by exploiting the specific properties of software-based side channels. We show that attackers cannot distinguish fake keystrokes from real keystrokes anymore and we evaluate KeyDrown on a commodity notebook as well as on Android smartphones. We show that KeyDrown eliminates any advantage an attacker can gain from using software-based sidechannel attacks. SLIDES http://wp.internetsociety.org/ndss/wp-content/uploads/sites/25/2018/03/NDSS2018_04B-1_Schwarz_Slides.pdf PAPER https://www.ndss-symposium.org/wp-content/uploads/sites/25/2018/02/ndss2018_04B-1_Schwarz_paper.pdf AUTHORS Michael Schwarz (Graz University of Technology) Moritz Lipp (Graz University of Technology) Daniel Gruss (Graz University of Technology) Samuel Weiser (Graz University of Technology) Clementine Maurice (Univ. Rennes, CNRS, IRISA) Raphael Spreitzer (Graz University of Technology) Stefan Mangard (Graz University of Technology) Network and Distributed System Security (NDSS) Symposium 2018, 18-21 February 2018, Catamaran Resort Hotel & Spa in San Diego, California. https://www.ndss-symposium.org/ndss2018/programme/ ABOUT NDSS The Network and Distributed System Security Symposium (NDSS) fosters information exchange among researchers and practitioners of network and distributed system security. The target audience includes those interested in practical aspects of network and distributed system security, with a focus on actual system design and implementation. A major goal is to encourage and enable the Internet community to apply, deploy, and advance the state of available security technologies. https://www.ndss-symposium.org/ #NDSS #NDSS18 #NDSS2018 #InternetSecurity
Views: 119 NDSS Symposium
How I Passed the CompTIA Security+ SY0–501 Exam (with Resource List)
RESOURCE LIST *CompTIA https://certification.comptia.org/certifications/security *Lynda https://www.lynda.com/ *LinkedIn Learning https://www.linkedin.com/learning/ *Mike Chapple's site https://www.certmike.com/ *CompTIA CertMaster https://certification.comptia.org/training/certmaster *Darril Gibson book https://www.amazon.com/CompTIA-Security-Get-Certified-Ahead/dp/1939136059 *Professor Messer https://www.professormesser.com/ *GoCertify http://www.gocertify.com/security-quizzes/security-practice-quiz-sy0-501-quiz-1 CONNECT WITH ME *GitHub https://github.com/PurpleDogEnterprises *Blog on Medium https://medium.com/@seanguthrie *LinkedIn https://www.linkedin.com/in/sean-patrick-guthrie-07384494/ *Purple Dog Enterprises http://purpledogenterprises.com
Views: 1164 Sean Guthrie
27c3: Chip and PIN is Broken (en)
Speaker: Steven J. Murdoch Vulnerabilities in the EMV Protocol EMV is the dominant protocol used for smart card payments worldwide, with over 730 million cards in circulation. Known to bank customers as "Chip and PIN", it is used in Europe; it is being introduced in Canada; and there is pressure from banks to introduce it in the USA too. EMV secures credit and debit card transactions by authenticating both the card and the customer presenting it through a combination of cryptographic authentication codes, digital signatures, and the entry of a PIN. In this paper we describe and demonstrate a protocol flaw which allows criminals to use a genuine card to make a payment without knowing the card's PIN, and to remain undetected even when the merchant has an online connection to the banking network. The fraudster performs a man-in-the-middle attack to trick the terminal into believing the PIN verified correctly, while telling the issuing bank that no PIN was entered at all. The paper considers how the flaws arose, why they remained unknown despite EMV's wide deployment for the best part of a decade, and how they might be fixed. Because we have found and validated a practical attack against the core functionality of EMV, we conclude that the protocol is broken. This failure is significant in the field of protocol design, and also has important public policy implications, in light of growing reports of fraud on stolen EMV cards. Frequently, banks deny such fraud victims a refund, asserting that a card cannot be used without the correct PIN, and concluding that the customer must be grossly negligent or lying. Our attack can explain a number of these cases, and exposes the need for further research to bridge the gap between the theoretical and practical security of bank payment systems. Smart cards have gradually replaced magnetic strip cards for point-of-sale and ATM transactions in many countries. The leading system, EMV (named after Europay, MasterCard, and Visa), has been deployed throughout most of Europe, and is currently being rolled out in Canada. As of early 2008, there were over 730 million EMV compliant smart cards in circulation worldwide. In EMV, customers authorize a credit or debit card transaction by inserting their card and entering a PIN into a point-of-sale terminal; the PIN is typically verified by the smart card chip, which is in turn authenticated to the terminal by a digital certificate. The transaction details are also authenticated by a cryptographic message authentication code (MAC), using a symmetric key shared between the payment card and the bank that issued the card to the customer (the issuer). EMV was heavily promoted under the "Chip and PIN" brand during its national rollout in the UK. The technology was advertised as a solution to increasing card fraud: a chip to prevent card counterfeiting, and a PIN to prevent abuse of stolen cards. Since its introduction in the UK the fraud landscape has changed significantly: lost and stolen card fraud is down, and counterfeit card fraud experienced a two year lull. But no type of fraud has been eliminated, and the overall fraud levels have actually risen (see Figure 1). The likely explanation for this is that EMV has simply moved fraud, not eliminated it. One goal of EMV was to externalise the costs of dispute from the issuing bank, in that if a disputed transaction has been authorised by a manuscript signature, it would be charged to the merchant, while if it had been authorised by a PIN then it would be charged to the customer. The net effect is that the banking industry, which was responsible for the design of the system, carries less liability for the fraud. The industry describes this as a 'liability shift'. In the past few years, the UK media have reported numerous cases where cardholders' complaints have been rejected by their bank and by government-approved mediators such as the Financial Ombudsman Service, using stock excuses such as 'Your card was CHIP read and a PIN was used so you must have been negligent.' Interestingly, an increasing number of complaints from believable witnesses indicate that their EMV cards were fraudulently used shortly after being stolen, despite there having been no possibility that the thief could have learned the PIN. In this paper, we describe a potential explanation. We have demonstrated how criminals can use stolen "Chip and PIN" (EMV) smart cards without knowing the PIN. Since "verified by PIN" -- the essence of the system -- does not work, we declare the Chip and PIN system to be broken. For more information visit:http://bit.ly/27c3_information To download the video visit: http://bit.ly/27c3_videos
Views: 16504 Christiaan008
Andy Wingo: DIY Internet: Snappy, Secure Networking with MinimaLT -- JSConf EU 2013
Slides: http://wingolog.org/pub/jsconf-eu-2013-slides.pdf Refreshing your Twitter feed is such a drag over 3G, taking forever to connect and fetch those precious kilobytes. The reasons for this go deep into the architecture of the internet: making an HTTPS connection simply has terrible latency. So let's fix the internet! MinimaLT is an exciting new network protocol that connects faster than TCP, is more secure than TLS (crypto by DJ Bernstein), and allows mobile devices to keep connections open as they change IP addresses. This talk presents the MinimaLT protocol and a Node library that allows JS hackers to experimentally build a new Internet. Source: http://2013.jsconf.eu/speakers/andy-wingo-diy-internet-snappy-secure-networking-with-minimalt.html License: For reuse of this video under a more permissive license please get in touch with us. The speakers retain the copyright for their performances.
Views: 1390 JSConf
CompTIA Security+ Certification (SY0-501): The Total Course : Cryptographic Methods
http://ytwizard.com/r/1M1FPf http://ytwizard.com/r/1M1FPf CompTIA Security+ Certification (SY0-501): The Total Course Everything you need to pass the CompTIA Security+ SY0-501 Exam, from Mike Meyers. CompTIA expert and bestselling author.
Views: 69 Be Pro
DEFCON 19: Sneaky PDF
Speaker: Mahmud Ab Rahman Specialist, CyberSecurity Malaysia Being a most prevalent document exchange format on the Internet, Portable Document Format (PDF) is in danger of becoming the main target for client-side attack. With estimation of more than 1.5 million line of code and loaded with huge functionalities, this powerful document format is suffered with several high impact vulnerabilities, allowing attackers to exploit and use it as malware spreading vector. Until now, there are thousands of malicious PDF file spreads with little chances of getting detected. The challenges are obfuscation techniques used by the attackers to hide their malicious activities, hence minimizing detection rate. In order to sustain the survival of malicious PDF file on the Internet, attackers circumvent the analysis process through diverse obfuscation techniques. Obfuscation methods used usually ranges from PDF syntax obfuscation, PDF filtering mechanism, JavaScript obfuscation, and variant from both methods. Because of rapid changes in methods of obfuscation, most antivirus software as well as security tools failed to detect malicious content inside PDF file, thus increasing the number of victims of malicious PDF mischief. In this paper, we study in the obfuscation techniques used inside in-the-wild malicious PDF, how to make it more stealthy and how we can improve analysis on malicious PDF. For more information visit: http://bit.ly/defcon19_information To download the video visit: http://bit.ly/defcon19_videos Playlist Defcon 19: http://bit.ly/defcon19_playlist
Views: 2473 Christiaan008
DEF CON 22 - Ladar Levison and Stephen Watt - Dark Mail
Slides Here: https://defcon.org/images/defcon-22/dc-22-presentations/Levison-Watt/DEFCON-22-Levison-Watt-Dark-Mail-UPDATED.pdf Dark Mail Ladar Levison FOUNDER OF LAVABIT, LLC Stephen Watt LEAD DEVELOPER, REFERENCE IMPLEMENTATION, DARK MAIL Data privacy and anonymity have long been cornerstone interests of the computer security world, but not particularly important to the general public. News events in the past year have seen the political climate shift radically, and now data privacy has become big business with secure mail solutions being the focal point of this new found attention. Dark Mail is not the only solution in the secure mail space, but just as Lavabit’s preoccupation with privacy and user autonomy was a rarity when it started over a decade ago, it hopes once again to push mail security forward into a new frontier. It is Dark Mail's objective to achieve the highest degree of security possible - with the introduction of an interoperable mail protocol as an open standard. To that end, we are publishing documents describing the protocol, along with a reference implementations of the client and server under a free software license. What most of the secure email systems in the privacy race have prioritized in tandem are ease of use for the masses, and cryptographically secure encryption of message contents between a sender and recipient. Additionally, they tend to place trust for private key management and encryption in the hands of the end user, and not the mail server. While this would certainly be an improvement over traditional SMTP, it leaves much to be desired. Where do other solutions fall short? Metadata. Dark Mail is designed to minimize the leakage of metadata so that ancillary information like subject lines, recipients, and attachments doesn’t fall into the hands of curious third parties. That means all information about the mail and its contents are completely opaque to everybody but the parties communicating - including the servers handling the messages in transit. Accomplishing these goals wasn’t possible using existing standards, which is why we created a security enhanced flavor of SMTP for mail delivery dubbed DMTP. What separates dmail from competing secure mail designs is the level of security it affords the user while retaining its simplicity of use. We have automated the key management functions, so complex cryptography operations are handled without user interaction. Of equal importance is the need for an implementation that is open to peer review, security audits, and cryptanalysis. Unlike many commercial solutions, dmail isn’t tethered to a single centralized provider; instead it offers the ability for anybody to host secure mail services. Like today, users will be able to access their mail from anywhere, using a web client with client-side encryption, or a traditional client application on their mobile or desktop device for an even greater degree of security. An open standard will guarantee that users have the freedom to adopt any dmail-compatible client or server implementation of their choosing. Most attendees of this presentation will be familiar with the curious story of Lavabit's demise. While Lavabit's hosted mail service refused to surrender unfettered access to its users' secrets, this course of action may not be the obvious choice for network administrators placed in similar situations. Most digital surveillance efforts require the service provider to be complicit with the wiretapping requests of law enforcement. Dmail aims to protect messages from surveillance and tampering - whether it be subversive or coerced - by placing that capability beyond the reach of service providers. With dmail the keys belong to the user, and the message decryption occurs on the user’s device. Even so, users can choose how much to trust a service provider - with standardized modes that reside at different points along the security vs usability spectrum.
Views: 4799 DEFCONConference
Defcon 15 - Kernel Wars
This video is part of the Infosec Video Collection at SecurityTube.net: http://www.securitytube.net Defcon 15 - Kernel Wars http://www.defcon.org/images/defcon-15/dc15-presentations/dc-15-panel_kernel_wars.pdf http://www.defcon.org/images/defcon-15/dc15-presentations/Panel_Kernel_Wars/Whitepaper/dc-15-panel_kernel_wars-WP.pdf http://www.defcon.org/images/defcon-15/dc15-presentations/Eriksson/Extras.zip http://www.defcon.org/images/defcon-15/dc15-presentations/Eriksson/CODE/GDI-Exploit.zip Kernel vulnerabilities are often deemed unexploitable, or at least unlikely to be exploited reliably. Although it's true that kernel-mode exploitation often presents some new challenges for exploit developers, it still all boils down to creative debugging and knowledge about the target in question. This talk intends to demystify kernel-mode exploitation by demonstrating the analysis and reliable exploitation of several real-life kernel vulnerabilities. From a defender's point of view this could hopefully serve as an eye-opener, as it demonstrates the ineffectiveness of HIDS, NX, ASLR and other protective measures when the kernel itself is being exploited. The entire process will be discussed, including how the vulnerabilities were found, how they were analyzed to determine if and how they can be reliably exploited and of course the exploits will be demonstrated in practice. None of the vulnerabilities that will be used as examples had public exploits by the time they were exploited by us, and includes the (in)famous Windows 2000/XP GDI bug, the FreeBSD 802.11 bug and a local NetBSD vulnerability. We will also demonstrate a full exploit for the remote OpenBSD ICMPv6 vulnerability found by CORE SDI, and discuss the payload techniques we used for it. The NetBSD-bug is a new 0-day for Vegas and not the same bug that was disclosed at our BlackHat Europe presentation, and we will also throw in at least one more surprise 0-day to keep things interesting. ;) More info will be made available at: http://kernelwars.blogspot.com/
Views: 2754 SecurityTubeCons
ICOs and the Token Economy: Disruption or Deception?
February 27th, 2018 Event Link: https://www.vlab.org/events/icos-and-the-token-economy/ Event flyer: https://www.vlab.org/wp-content/uploads/2018/02/VLAB-Flyer-ICOs-and-Token-Economy.pdf ===Space Stanford Faculty Club Stanford University ===Moderator Amy Wan, Founder, Sagewise.io ===Panelists Amanda Straub, Senior Counsel, Cyber Unit, Division of Enforcement, U.S. Securities and Exchange Commission Charles Hudson, Founder and Managing Partner, Precursor Ventures Eric Ly, Founder and CEO, Hub Token, and Co-Founder, LinkedIn Richard Craib, Founder, Numerai ===Demo Pavillion Meet a select group of early-stage, disruptive startups: Alpha Coin • Cypherium • Earn.com • Hack Fund • Hub • Luna Capital • NEM Foundation • Olympus Labs • Sagewise • Votem • WorkCoin ===Event Description Even the most seasoned investors, entrepreneurs, and established businesses have been caught off guard by the meteoric rise of Initial Coin Offerings (ICOs), cryptographic tokens, and blockchain-based application development. Early-stage startups raised nearly $4B from ICOs during the past year, far outstripping venture and angel funding. The U.S. Securities and Exchange Commission (SEC) recently spoke out, emphatically cautioning that many ICOs may be violating securities laws. Beyond the legal concerns and the hype awaits a potential technological and economic disruption not seen since the birth of the worldwide web: the decentralization of the Internet. If successful, decentralization of data storage and ownership promises to dramatically upend the status quo, cutting out intermediaries and centralized platforms and replacing them with token-based, peer-to-peer transactions executed via “smart contracts.” Myriad service industries are in blockchain’s crosshairs, from financial and payment processing to ride and home sharing, such as Uber and Airbnb. As decentralization evolves, what form will it take? When will it occur, and at what scale? What are the obstacles and barriers? Given recent SEC action, what is the future of ICOs? How will companies, businesses, and markets benefit from these changes?
Views: 486 vlabvideos
How We Created the First SHA-1 Collision and What it Means for Hash Security
In this talk, we recount how we found the first SHA-1 collision. We delve into the challenges we faced from developing a meaningful payload, to scaling the computation to that massive scale, to solving unexpected cryptanalytic challenges that occurred during this endeavor. By Elie Bursztein Read More: https://www.blackhat.com/us-17/briefings/schedule/index.html#how-we-created-the-first-sha-1-collision-and-what-it-means-for-hash-security-7693
Views: 8281 Black Hat
DEF CON 15 - Zed Shaw - Saving the Internet with Hate
Zed A. Shaw: Saving The Internet With Hate Utu is the Maori word for a system of revenge used by Maori society to provide social controls and retribution. Utu is also a protocol that uses cryptographic models of social interaction to allow peers to vote on their dislike of other peer's behavior. The goal of Utu is to experiment with the effects of bringing identity, reputation, and retribution to human communications on the Internet. A secondary goal is wiping out IRC because apparently nobody really likes IRC. This presentation will cover the protocol's design, use of cryptography, secure coding practices, and an analysis of it's adoption and current research results. The presentation is for medium to advanced participants interested in similar open source projects. In the spirit of openness and collaboration and just plain evil, there will be an Utu server running for conference participants to use during the conference. The goal is to present the system, get people thinking, and obtain feedback on the design and implementation."Zed A. Shaw is the author of a Ruby web server named Mongrel and a frequent speaker at conferences and user groups around the US. He's currently working as a software developer and tinkers on open source projects in his spare time.
Views: 2880 DEFCONConference
CompTIA Security+ Certification (SY0-501): The Total Course : What is Risk?
http://ytwizard.com/r/1M1FPf http://ytwizard.com/r/1M1FPf CompTIA Security+ Certification (SY0-501): The Total Course Everything you need to pass the CompTIA Security+ SY0-501 Exam, from Mike Meyers. CompTIA expert and bestselling author.
Views: 183 Be Pro
Digital Signature Verification
Digital Signature using GPG. Generate, share and verify the public key for digital signature.
Views: 1386 Anuj Sikchi
TaaS ICO за сутки инвестировали больше 1000 Биткоинов, отличный старт!
#TaaS ICO за сутки инвестировали больше 1000 #биткоинов, отличный старт! ヅ ツ ゾ Follow me on BitcoinTalk: https://bitcointalk.org/index.php?action=profile;u=876156 ➤ TaaS (Token-as-a-Service) – #Инвестиционный фонд закрытого типа, специализирующийся на #блокчейн-активах, начало ICO запланировано на 27 марта, срок – 1 месяц . Ключевые особенности: ➤ 75% собранных средств будут направлены в портфолио, 15% – операционные расходы, и 10% – Резервный #Фонд. Владельцы токенов получают 50% квартальной прибыли фонда. В качестве верхней границы финансирования указана сумма 101 миллион долларов #$, однако основатели рассчитывают на реальный результат примерно в 10 миллионов долларов. ➤ Фонд создается в юрисдикции Сингапура, ограничений на гражданство инвесторов пока не указано. Особо можно выделить функции Криптографического Аудита – инвесторы смогут отслеживать свои балансы и историю сделок; в 3-м квартале 2017 года планируется запуск исследовательской платформы по #криптовалютам, аналогичной #Bloomberg, под названием #Kepler. ➤ Используя #blockchain #Эфириума и свою новаторскую технологию #Cryptographic аудита, TaaS предложит новый способ участвовать и получать выгоду от привлечения капитала, управления фондами, и #криптовалюта #инвестирования, все с полной прозрачности аудита #инвесторам. ➤ Швейцарской финансовыми рисками и специалист Фонда Патрик Зальм имеет опыт работы более четырех лет в blockchain технологии и опыт более 10 лет успешной работы с крупными мировыми банками, где он занял ведущие роли. Зальм в настоящее время Стратегический Менеджер по управлению рисками и бизнес-аналитик в банке, теперь AG, дочерняя компания Credit Suisse Group, где он обеспечивает анализ и оптимизацию рисков соответствующих бизнес-процессов и приложений. ➤ До этой роли, Зальм был руководителем Pre-правовой Recovery Team в BANK-сейчас, отвечает за мониторинг рисков и прогресса потеря несущих позиций на сумму более $ 150 млн в активах. Зальм также занимал руководящие должности в бонусной кредитной карточки компании Jelmoli бонусная карта и на Intrum Justitia, ведущих европейских служб по управлению кредитной компании. ➤ TaaS #токены предназначены для торговать на всех основных #биржах. Для получения дополнительной информации, белая бумага TAAS доступна: Token as a Service TaaS обзор ICO: https://youtu.be/oG93QwBkbcg ☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏☎☏ Official website: http://taas.fund ICOTRACKER: https://icotracker.net/project/taas #BitcoinTalk: https://bitcointalk.org/index.php?topic=1775766.0 SLACK: https://taasfund.signup.team Twitter: https://twitter.com/TaaSfund #Facebook: https://www.facebook.com/taasfund Telegram: https://t.me/taasfund #whitepaper: http://taas.fund/media/whitepaper.pdf ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ►► ► ► ► ► ► ► ► ► ► ► ICOTRACKER.NET специализируется на оценке компании с запланированным ICO "ИКО". Анализ #icotracker является тщательным и объективным анализом компаний в качестве потенциальных объектов инвестирования. ♐ ICO (Initial Coin Offer) - начальное распределение (предложение) монет! ♐ AirDrops и закрытое распределение монет на примере #PostCoin и #AuroraCoin ♐ Баунти "bounty" криптовалют на примере #Wings DAO ╔══════════════════════════════════════════════════════╗ ➥ Ждём от вас комментарии, вопросы, конструктивную критику и предложение #ICO стартапов, которые на Ваше усмотрение есть интересны и мы их разобрали в следующих обзорах! ╚══════════════════════════════════════════════════════╝ ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ ☛ Канал "ICO startups mining" посвящен рекомендациям, обзорам, презентациям проверенных стратегий заработка в Интернете как без вложений, так и с минимальными инвестициями. Это знания и навыки, которые позволят вам зарабатывать в интернете те деньги, о которых вы мечтаете, а со временем - обрести финансовую свободу и независимость. ☛ #Криптоаналитика и подробная информация об инвестиционных возможностях рынка электронных валют. Обзор новых проектов ICO, информация о рабочих blockchain-решениях, обмен опытом и консультации! ☛ Новости мира #криптовалют, децентрализованных технологий, денежных систем и современных финансовых технологий. ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ ╔══════════════════════════════════════════════════════╗ ➤ подписывайся на канал - https://www.youtube.com/channel/UC0Dc6MqKvry3geBNcakmu-g ➤ Skype: Кaznachej123 ➤ Тelegram: https://telegram.me/icostart1 ➤ Twitter: https://twitter.com/Kaznachej123 ➤ #ICOTRACKER : https://icotracker.net ➤ Skype чат майнеров: https://join.skype.com/hTHaVvwzJCgu ╚══════════════════════════════════════════════════════╝
Views: 1758 ICO startups
Defcon 19: Paul Craig - Internet Kiosk Terminals : The Redux
This video is part of the Infosec Video Collection at SecurityTube.net: http://www.securitytube.net https://www.defcon.org/images/defcon-19/dc-19-presentations/Craig/DEFCON-19-Craig-Internet-Kiosk-Terminals.pdf Paul Craig is the self-proclaimed "King of Kiosk Hacking" You have likely heard of him or his pornographic tool iKAT (Interactive Kiosk Attack Tool). For the last 3 years he has dedicated his life to striking fear into the hearts of Kiosk vendors. This talk will compromise all of his latest advancements in the field of hacking Kiosk terminals. Multiple platforms, vendors, technologies and more shells than you can shake a stick at. If you have ever wanted to hack that lonely web-browsing computer in the corner of a room, this is the talk for you. This talk will also showcase a live freestyle Kiosk hacking session, with a truck load of slick ninja techniques and zero-day. Watch out - the King of Kiosk hacking is back in town. Paul Craig works at Security-Assessment.com with a bunch of some of the best hackers in the world. Paul lives for hacking, it's in his blood! From the age of 13 he has have been addicted to popping shells, stealing access and escalating privileges. He loves his job and is fully committed to the trade.
Views: 9537 SecurityTubeCons
Defcon 19: Daniel Crowley - Speaking with Cryptographic Oracles
This video is part of the Infosec Video Collection at SecurityTube.net: http://www.securitytube.net https://www.defcon.org/images/defcon-19/dc-19-presentations/Crowley/DEFCON-19-Crowley-Cryptographic-Oracles.pdf Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that matter, if you ARE a cryptographer, it is still easy to make mistakes. The algorithms might be peer reviewed and unbroken for 15 years, but if you use them incorrectly, they might leak information. Cryptographic oracles are systems which take user-controlled input and leak part or all of the output, generally leading to an attacker being able to defeat the cryptography, in part of in whole. In this talk, methods for finding and exploiting encryption, decryption, and padding oracles with minimal cryptographic knowledge will be discussed. Daniel Crowley is an Application Security Consultant for Trustwave's SpiderLabs team. He has been working in the information security industry for over 6 years and has been focused on penetration testing, specifically on Web applications. Daniel is particularly interested in vulnerabilities caused by a failure to account for little known or even undocumented properties of the platforms on which applications run. He especially enjoys playing around with Web based technologies and physical security technologies and techniques. Dan also rock climbs and makes a mean chili. Twitter: @dan_crowley.
Views: 194 SecurityTubeCons
Cryptographic Hash Functions (Contd...2)
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: 7649 nptelhrd
Warning if u don't backup ur whasapp data will be deleted | Whatsapp | Backup Restore |
WhatsApp Messenger WhatsApp logo.svg Developer(s) WhatsApp Inc. Initial release January 2009; 9 years ago Stable release(s) [±] iOS 2.18.101 / October 29, 2018; 12 days ago Android 2.18.341 / November 9, 2018; 1 day ago Windows Phone 8, Windows 10 Mobile 2.18.52[3] Symbian 2.16.57[4] BlackBerry 2.17.2 / June 26, 2016; 2 years ago Preview release(s) [±] Android 2.18.349 / November 10, 2018; 0 days ago[6] Windows Phone 8, Windows 10 Mobile 2.18.112 Written in Erlang[8] Operating system Android, iOS, Windows Phone, BlackBerry OS, Symbian (there are Windows, macOS and web app clients that work only in presence of a connected mobile app client) Type Instant messaging and social media License Freeware Alexa rank Positive decrease 52 (As of 1 October 2018) Website www.whatsapp.com WhatsApp Inc. WhatsApp.svg Type of business Subsidiary Founded February 24, 2009; 9 years ago Headquarters Mountain View, California, United States Founder(s) Jan Koum Brian Acton CEO Chris Daniels Employees 50 Parent Facebook Website www.whatsapp.com WhatsApp Timeline Feb 24, 2009, Jan Koum incorporates WhatsApp in California.[12] Oct 2009 Brian Acton persuades five ex-Yahoo! friends, to invest $250,000 in seed funding, and is granted co-founder status. Aug 2009 WhatsApp 2.0 is released on the App Store for the iPhone. Dec 2009 WhatsApp for the iPhone is updated to send photos.[12] Aug 2010 WhatsApp support for Android OS is added. Jan 21, 2011, WeChat, a messenger app, is founded. It eventually becomes very popular in China. Apr 2011 In Series A round, WhatsApp founders agree to take $7 million from Sequoia Capital on top of their $250,000 seed funding, after months of negotiation with Sequoia partner Jim Goetz.[12] May 2011 SnapChat, a competing photo messaging app, is founded. Jan 6, 2012, An unknown hacker publishes a website that makes it possible to change the status of an arbitrary WhatsApp user, as long as the phone number was known. Aug 2012 The WhatsApp support staff announce that messages were encrypted in the "latest version" of the WhatsApp software for iOS and Android (but not BlackBerry, Windows Phone, and Symbian), without specifying the cryptographic method. Feb 2013 WhatsApp's user base swells to about 200 million active users and its staff to 50. Jul 2013 Sequoia invests another $50 million in Series B round, valuing WhatsApp at $1.5 billion.[20] Jul 16, 2013, WhatsApp goes free, with an annual subscription fee of $1 after the first year. Aug 2013 Telegram, a cloud-based instant messaging service, launches. Aug 2013 WhatsApp introduces voice messaging. Feb 19, 2014, Facebook announces its acquisition of WhatsApp for US$19 billion, its largest acquisition to date.[25] Facebook pays $4 billion in cash, $12 billion in Facebook shares, and an additional $3 billion in restricted stock units granted to WhatsApp's founders. Mar 2014 Someone discovers a vulnerability in WhatsApp encryption on the Android application that allows another app to access and read all of a user’s chat conversations within it. Nov 2014 WhatsApp introduces a feature named Read Receipts, which alerts senders when their messages are read by recipients. Within a week, WhatsApp introduces an update allowing users to disable this feature so that message recipients do not send acknowledgments. Jan 21, 2015, WhatsApp launches WhatsApp Web, a web client which can be used through a web browser by syncing with the mobile device's connection.[29] Jan 21, 2015, WhatsApp announces its policy on cracking down on 3rd-party clients, including WhatsApp+. Users would not be able to use WhatsApp’s services at all until the third-party apps are uninstalled. Dec 2015 WhatsApp is briefly shut down in Brazil after it refuses to place wiretaps on certain WhatsApp accounts.[32] It is shut down in Brazil again in May 2016 and in July 2016.[33] Jan 18, 2016, Jan Koum announces that WhatsApp will no longer charge its users a $1 annual subscription fee. There is still no clear plan for monetizing WhatsApp. Mar 2016 Diego Dzodan, a Facebook executive, is arrested by Brazilian federal police after Facebook fails to turn over information from his WhatsApp messaging account into a judge's request for a drug trafficking investigation.[37] Mar 2, 2016, WhatsApp introduces its document-sharing feature, initially allowing users to share PDF files with their contacts.[38] Apr 5, 2016, WhatsApp and Open Whisper Systems announced that they finish adding end-to-end encryption to "every form of communication" on WhatsApp and that users could now verify each other's keys.[39][40][41] May 10, 2016, WhatsApp is introduced for both Windows and Mac operating systems. Telugu Fire Channel is a Public Channel Follow Telugu Fire Channel For more updates TELUGU FIRE CHANNEL Gmail: [email protected] twitter: https://twitter.com/telugufire Facebook: https://www.facebook.com/telugufirechannel
Blaze's West Berkshire Museum Adventure app
The Blaze's West Berkshire Museum Adventure app is now ready to download from the app store. Excellent work from Parachute Studios! Huge thanks from everyone at Hogans Music and the brilliant Adam Brown for bringing Blaze the dragon to life. Did you find all the easter eggs? Enigma is a brand strategy advisory group which handpicks experts to provide bespoke, data-led solutions for your organisation's needs. We are Brand Led ©, Data Centred♻️, Value Driven ⤴️ https://www.enigma-digital.com https://www.enigma-digital.com/enigmas-architecture/ Download our PDF: https://www.enigma-digital.com/PDF/ENIGMAS-ARCHITECTURE.pdf We build forward-thinking, tailored digital business transformation models that will make a real difference to your bottom line. We do this by providing an innovative mix of brand strategy and data analytics, delivering immersive solutions that fit your specific needs. In today's market, where customers have greater choice than ever and competition fierce on their heels, it's vital to understand what's relevant, what interests and what inspires. Your data might not tell you everything you need to know, but it's the best place to start. Translating insight is the first step in creating marketing strategies that make the real difference. Our service doesn't come to a halt once we've developed your strategy. Enigma is an amalgamation of a design studio, a marketing agency & a technology company. We create Digital Brand Experiences for the web of tomorrow. Enigma can deliver the following services, via our established and trusted partner network - KEY SOLUTIONS: Strategies (Business Transformation) Blockchain Virtual Reality (VR) Augmented Reality (AR) Artificial Intelligence (AI) Internet of Things (IoT) Gamification and E-Learning Website Development Application Development User Experience (UX) Social Media (SM) Search Engine Optimisation (SEO) Pay Per Click (PPC) CREATIVE SERVICES: Branding & Creativity 360 Photography Animation and Special Effects Video Photography Print Music Production Public Relations (PR) Experiential Our passion, creativity, and insight will succeed where others have failed. Find out how we can help you. Get in touch for a free consultation today: [email protected] 020 3488 1227 www.enigma-digital.com Member of Creative Industries Federation (CIF) and Chartered Institute Of Marketing (CIM) #Global 🌎 #Digitaltransformation #Agency #Creative #Design #VR #AR #AI #IoT #blockchain #cryptosystem #Gamification #Branding #Digital #Marketing #Strategies #SocialMedia #SEO #PPC #Webdevelopment #Apps #Video #Dronefilming #Animation
Bypassing Local Windows Authentication To Defeat Full Disk Encryption
by Ian Haken In 2007, starting with Windows Vista, Microsoft began shipping a full disk encryption feature named BitLocker with professional and enterprise versions of Windows. Full disk encryption helps protect users from threats that include physical access. This can, for example, prevent the exposure of proprietary information and account credentials if a company laptop is lost, stolen, or even left temporarily accessible to an attacker. Under the hood, BitLocker utilizes a system's Trusted Platform Module (TPM) to store the secret key used for full disk encryption, and is able to use the features of the TPM to safely provide transparent, passwordless decryption of the disk on boot. Because BitLocker can work transparentlywithout any extra passwords or prompts on bootmany enterprises have opted to enable this form of full disk encryption as a part of their data loss prevention strategy. However, in this presentation, I will demonstrate how one can abuse physical access in order to bypass Windows authenticationthus accessing all of a user's dataeven when the disk is fully encrypted by BitLocker. This platform-independent attack effectively bypasses all of the protection offered by BitLocker, reliably and quickly allowing an attacker to retrieve all of the sensitive data on the machine, all without having to perform any cryptographic brute-forcing or hardware manipulation.
Views: 19162 Black Hat
Digital signature emsigner error solved
Error of emsigner solved
Glen Weyl: "Radical Markets: Uprooting Capitalism & Democracy for a Just Society" | Talks at Google
Many blame today's economic inequality, stagnation, and political instability on the free market. The solution is to rein in the market, right? Radical Markets turns this thinking — and pretty much all conventional thinking about markets, both for and against — on its head. The book reveals bold new ways to organize markets for the good of everyone. It shows how the emancipatory force of genuinely open, free, and competitive markets can reawaken the dormant nineteenth-century spirit of liberal reform and lead to greater equality, prosperity, and cooperation. Eric Posner and Glen Weyl demonstrate why private property is inherently monopolistic, and how we would all be better off if private ownership were converted into a public auction for public benefit. They show how the principle of one person, one vote inhibits democracy, suggesting instead an ingenious way for voters to effectively influence the issues that matter most to them. They argue that every citizen of a host country should benefit from immigration—not just migrants and their capitalist employers. They propose leveraging antitrust laws to liberate markets from the grip of institutional investors and creating a data labor movement to force digital monopolies to compensate people for their electronic data. Only by radically expanding the scope of markets can we reduce inequality, restore robust economic growth, and resolve political conflicts. But to do that, we must replace our most sacred institutions with truly free and open competition—Radical Markets shows how. Moderated by Hal Varian. Get the book: https://goo.gl/kfASr6
Views: 5808 Talks at Google
Вебинар «Технологии электронной подписи» часть 1
4 сентября на вебинаре мы рассказали о различных технологиях, которые используются при работе с электронной подписью в России и в мире. Подробно остановились на различных программных интерфейсах, их особенностях, достоинствах и недостатках. Вебинар был прежде всего нацелен на технических специалистов, которые встраивают или планируют встраивать технологии электронной подписи в свой продукт, а также на тех, кто хочет разобраться в деталях работы электронной подписи. О чем рассказали: — О низкоуровневых интерфейсах и технологиях; — О стандартах (CMS, PKCS и других); — О высокоуровневых интерфейсах (CAPI, PKCS#11); — Библиотеках для работы с ЭЦП (C\C++, Java, Python, C#, JavaScript). Вел вебинар Владимир Салыкин, менеджер по продуктам компании «Актив». В рамках вебинара были рассмотрены различные технологии и продемонстрированы примеры работы с ними.
CompTIA Security+ SY0-501: Linux Terminal Basics (Part 1/2)
New training posted to https://www.securitypluspro.com: Today you're going to learn: - How to open the Linux Terminal - The important difference between upper and lower case in Linux - How to get instant help on virtually any Linux command (without using Google or Bing) It's gonna be awesome!
Views: 299 Security Plus Pro
CompTIA Security+ Certification (SY0-501): The Total Course : LAN Review
http://ytwizard.com/r/1M1FPf http://ytwizard.com/r/1M1FPf CompTIA Security+ Certification (SY0-501): The Total Course Everything you need to pass the CompTIA Security+ SY0-501 Exam, from Mike Meyers. CompTIA expert and bestselling author.
Views: 93 Be Pro
Cisco 210-260 Dumps - Updated 210-260 Exam Questions PDF | 100% Passing Guarantee by DumpsArchive
For more updates and information about Oracle 1Z0-071 Oracle PL-SQL Developer Certified Associate Exam Visit the link below: -------------------------------------------------------- https://dumpsarchive.com/dumps/210-260/ -------------------------------------------------------- Implementing Cisco Network Security exam (210-260) is an important exam which one should take in order to become Cisco professional. It requires a lot of confident and hard work to pass your exam in only first attempt with high marks. But Dumpsarchive has made it easy to get themselves prepare for 210-260 exam with ease and also they can get 100% desired success in their exam in very first attempt. Dumpsarchive has available all the latest and relevant exam material which covers the entire course contents and practice tests will give you confident to prepare you for the actual exam. Preparation with the exam dumps are recommended way by the CCNA Security experts to prepare for the final exam, this is the only and easiest way to get prepared according to the new exam Q/A pattern that’re going to be asked in the certification exam. Following are the features of the exam dumps you're going to prepare with: Cisco 210-260 PDF dumps contains real exam questions answers. Up-to-date 210-260 dumps pdf with new questions. Instant download with regular updates for one year. 210-260 answers are verified by Cisco certified experts. You can look at the 100% free demo to check level of quality. Great refund policy incase of faliure in the CCNA Security exam. Some features of the study material: 100% Passing guarantee. Free exam updates. 100% satisfied guarantee. Free demo of exam questions and answers. Ultimate customer support. Easy to use exam dumps PDF File. Refund policy if you get fail in the %certificaiton% exam. I will strongly suggest you the Dumpsarchive's exam material, if you want instant success in your Cisco CCNA Security exam 210-260, The Dumpsarchive.com is the best among all the online dumps providors. Dumpsarchive is well known of the significance of your time, cash and prepration point of view. If you get help from Dumpsarchive you will not be in need to study from any other source as it is universally known authentication of foundation-level security expertise and information.
DEFCON 19: Smile for the Grenade! "Camera Go Bang!"
Speakers: Vlad Gostom Penetration Tester | Joshua Marpet Security Evangelist, DataDevastation Cameras are hugely important to urban and suburban battlefields. Reconnaissance is a must-have for commanders, and a force multiplier for actual combat units. A combat-deployable camera system is being developed or used by nearly every military-industrial manufacturer and government agency, ranging from Throwable Camera Balls to Grenade-style launched cameras. But they're expensive and inaccessible to civilians. Would it be possible to build a combat-deployable camera system that would fulfill the mandates of a tactical combat team, feed information to a strategic command center, and force-multiply "on the cheap"? For more information visit: http://bit.ly/defcon19_information To download the video visit: http://bit.ly/defcon19_videos Playlist Defcon 19: http://bit.ly/defcon19_playlist
Views: 2962 Christiaan008