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Sandy Zabell: Alan Turing and the Applications of Probability to Cryptography (Rutgers)
 
59:43
In the years before World War II Bayesian statistics went into eclipse, a casualty of the combined attacks of statisticians such as R. A. Fisher and Jerzy Neyman. During the war itself, however, the brilliant but statistical naif Alan Turing developed de novo a Bayesian approach to cryptananalysis which he then applied to good effect against a number of German encryption systems. The year 2012 was the centenary of the birth of Alan Turing, and as part of the celebrations the British authorities released materials casting light on Turing's Bayesian approach. In this talk I discuss how Turing's Bayesian view of inductive inference was reflected in his approach to cryptanalysis, and give an example where his Bayesian methods proved more effective than the orthodox ones more commonly used. I will conclude by discussing the curious career of I. J. Good, initially one of Turing's assistants at Bletchley Park. Good became one of the most influential advocates for Bayesian statistics after the war, although he hid the reasons for his belief in their efficacy for many decades due to their classified origins.
Views: 322 Harry Crane
Network Security - CryptoAnalysis of Monoalphabetic Substitution Cipher
 
13:13
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 204 intrigano
Cryptography Best Practices - Bart Preneel
 
01:41:25
Application architects need to make informed choices to use cryptography well: + Alternative key architectures have their merits and drawbacks. PKIs, in particular, should be contrasted with symmetric key architectures such as Kerberos. + Network protocol characteristics are pivotal in ensuring distributed applications meet security requirements. Key strength choices impact on security guarantees offered, as do cryptographic algorithm modes. + While strong keys and wise use of cryptographic algorithms may thwart cryptanalytic attack, applications are insecure without prudent key management. In this context, key generation and key storage require particular attention. + The selection of crypto-libraries requires awareness of inherent library qualities and failures. Application developers are advised not to implement their own. Learning objectives + decide if and when cryptography should be used. + make informed key architecture and management decisions. + use appropriate algorithms and parameters. + select an appropriate cryptographic library. + choose network protocols for distributed applications. This lecture was delivered by Bart Preneel at SecAppDev 2013 in Leuven, Belgium. Professor Bart Preneel of KU Leuven heads the COSIC (COmputer Security and Industrial Cryptography) research group. His main research area is information security with a focus on cryptographic algorithms and protocols as well as their applications to both computer and network security, and mobile communications. He teaches cryptology, network security and coding theory at the KU Leuven and was visiting professor at the Ruhr Universitaet Bochum (Germany), the T.U.Graz (Austria), the University of Bergen (Norway), and the Universiteit Gent (Belgium). In '93-'94 he was a research fellow at the University of California at Berkeley. He has taught intensive courses around the world. He undertakes industrial consulting (Mastercard International, S.W.I.F.T., Proton World International,...), and participates in the work of ISO/IEC JTC1/SC27/WG2. Professor Preneel is Vice President of the International Association for Cryptologic Research (IACR) and co-founder and chairman of LSEC vzw (Leuven Security Excellence Consortium).
Views: 2835 secappdev.org
Application of Elliptic Curves to Cryptography
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 9904 nptelhrd
Introduction - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 941 Udacity
Envelopes - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 606 Udacity
2011 Killian Lecture: Ronald L. Rivest, "The Growth of Cryptography"
 
01:09:19
Lecture title: "The Growth of Cryptography" Ronald L. Rivest, a professor of electrical engineering and computer science who helped develop one of the world's most widely used Internet security systems, was MIT’s James R. Killian, Jr. Faculty Achievement Award winner for 2010–2011. Rivest, the Andrew and Erna Viterbi professor in MIT's Department of Electrical Engineering and Computer Science, is known for his pioneering work in the field of cryptography, computer, and network security. February 8, 2011 Huntington Hall (10-250)
What is Cryptography
 
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www.hiteshChoudhary.com www.newdemy.com What is Cryptography? Cryptography is a very interesting science of information security. The word Cryptography is derived from Greek kryptos, meaning hidden. Cryptography is not alone word or one word for all related information security science. Words like cryptanalysis, cipher and cryptology are always included in this science. Cryptography includes techniques such as microdots, merging words with images, and other ways to hide information in storage or transit. However, in today's computer-centric world, cryptography is most often associated with scrambling plaintext (ordinary text, sometimes referred to as clear text) into cipher text (unreadable text obtained after a process called encryption), then back again (known as decryption). Individuals who practice this field are known as cryptographers. There is also a word, Cryptosystem that you will see a lot in this video course. Procedures and protocols that are used in cryptography makes up a system that is known as cryptosystem. Cryptosystem are mostly referred as computer programs or protocols but I would like it to extend to a much wider plot. It also include human behavior as social engineering is still one of the fastest technique to compromise a system or application. Things like choosing typical password, logging off unused systems, protecting sensitive files also plays a vital role in cryptosystem. Although, it is considered that 1st use of modern cryptography was by Julius Caesar, who did not trust his messenger when communicating with his governors. But I think the need of encryption came in high demand after the invention of radio as one can tune into your frequency range and intercept your message. But if the transmission is encrypted then things get changed. In recent times, cryptography has turned into a battleground of some of the world's best mathematicians and computer scientists. The ability to securely store and transfer sensitive information has proved a critical factor in success in war and business. To understand more about cryptography, let’s call our friends Alice and Bob. Now Alice wants to transfer some information to Bob but wants to do it securely. Alice decided that instead of transferring information in clear text form, I’ll encrypt this text with some algorithm and key. Then I’ll pass this cipher text. Now bob should also have the key and decryption algorithm to read the information. The two major problems are secure transfer of key and knowledge about algorithm. Things like degree of complexity of algorithm and its randomness also plays a vital role in cryptography. This course is going to be a detailed overview about all these things.
Views: 3512 Hitesh Choudhary
Cryptanalysis of Classical Ciphers
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 12545 nptelhrd
CISSP CBK Overview - Cryptography
 
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CISSP CBK Cryptography
Views: 1276 Become Cissp
Daniele Micciancio - Cryptography developments
 
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Daniele Micciancio is a professor of computer science at the University of California, San Diego. As a leader in the field of lattice based cryptography and computational complexity, his research has focused heavily on fully homomorphic encryption and its challenges. Micciancio was visiting IQC for PQCrypto 2014, the 6th international conference on post-quantum cryptography (https://pqcrypto2014.uwaterloo.ca/). Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC Micciancio explains fully homomorphic encryption and how it relates to his group work on latice algorithms.
Chris Peikert - Lattice Cryptography for the Internet
 
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Chris Peikert of Georgia Institute of Technology presented a talk titled: Lattice cryptography for the internet at the 2014 PQCrypto conference in October, 2014. Abstract: In recent years, lattice-based cryptography has been recognized for its many attractive properties, such as strong provable security guarantees and apparent resistance to quantum attacks, flexibility for realizing powerful tools like fully homomorphic encryption, and high asymptotic efficiency. Indeed, several works have demonstrated that for basic tasks like encryption and authentication, lattice-based primitives can have performance competitive with (or even surpassing) those based on classical mechanisms like RSA or Diffie-Hellman. However, there still has been relatively little work on developing lattice cryptography for deployment in real-world cryptosystems and protocols. In this work, we take a step toward that goal, by giving efficient and practical lattice-based protocols for key transport, encryption, and authenticated key exchange that are suitable as "drop-in" components for proposed Internet standards and other open protocols. The security of all our proposals is provable based (sometimes in the random-oracle model) on the well-studied "leaning with errors over rings" problem, and hence on the conjectured worst-case hardness of problems on ideal lattices (against quantum algorithms). One of our main technical innovations (which may be of independent interest) is a simple, low-bandwidth reconciliation technique that allows two parties who "approximately agree" on a secret value to reach exact agreement, a setting common to essentially all lattice-bases encryption schemes. Our technique reduces the ciphertext length of prior (already compact) encryption schemes nearly twofold, at essentially no cost. PQCrypto 2014 Book: http://www.springer.com/computer/security+and+cryptology/book/978-3-319-11658-7 Workshop: https://pqcrypto2014.uwaterloo.ca/ Find out more about IQC! Website - https://uwaterloo.ca/institute-for-qu... Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
what is cryptography and network security
 
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It is a mono-alphabetic cipher wherein each letter of the plaintext is substituted by another letter to form the ciphertext. It is a simplest form of substitution cipher scheme Modern cryptography uses sophisticated mathematical equations (algorithms) and secret keys to encrypt and decrypt data. Today, cryptography is used to provide secrecy and integrity to our data, and both authentication and anonymity to our communications. Network security attacks and services https://youtu.be/-ZHWhaLInik What is network security explained in minutes https://youtu.be/vqavFou2oxk Predefined functions in PHP https://youtu.be/ewmWqm2H-AA Cryptography or cryptology (from Greek κρυπτός kryptós, "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively[1]) is the practice and study of techniques for secure communication in the presence of third parties called adversaries.[2] More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages;[3] various aspects in information security such as data confidentiality, data integrity, authentication, and non-repudiation[4] are central to modern cryptography. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, electrical engineering, communication science, and physics. Applications of cryptography include electronic commerce, chip-based payment cards, digital currencies, computer passwords, and military communications. Cryptography prior to the modern age was effectively synonymous with encryption, the conversion of information from a readable state to apparent nonsense. The originator of an encrypted message shared the decoding technique needed to recover the original information only with intended recipients, thereby precluding unwanted persons from doing the same. The cryptography literature often uses the name Alice ("A") for the sender, Bob ("B") for the intended recipient, and Eve ("eavesdropper") for the adversary.[5] Since the development of rotor cipher machines in World War I and the advent of computers in World War II, the methods used to carry out cryptology have become increasingly complex and its application more widespread. Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in practice by any adversary. It is theoretically possible to break such a system, but it is infeasible to do so by any known practical means. These schemes are therefore termed computationally secure; theoretical advances, e.g., improvements in integer factorization algorithms, and faster computing technology require these solutions to be continually adapted. There exist information-theoretically secure schemes that probably cannot be broken even with unlimited computing power—an example is the one-time pad—but these schemes are more difficult to implement than the best theoretically breakable but computationally secure mechanisms. The growth of cryptographic technology has raised a number of legal issues in the information age. Cryptography's potential for use as a tool for espionage and sedition has led many governments to classify it as a weapon and to limit or even prohibit its use and export.[6] In some jurisdictions where the use of cryptography is legal, laws permit investigators to compel the disclosure of encryption keys for documents relevant to an investigation.[7][8] Cryptography also plays a major role in digital rights management and copyright infringement of digital media.[9] -~-~~-~~~-~~-~- -~-~~-~~~-~~-~- How to link one page to another page in HTML https://youtu.be/GmzUr4Tdeb0 How to create a simple Home Design program in java Applet https://youtu.be/oLtG5vNI7WA Difference between Core JAVA VS Advanced JAVA https://youtu.be/iR3uxTlE7nw How to change Form background color in Runtime in VB.net https://youtu.be/Ewd9Ow_qmsE How to create the Rainbow in Java Applet https://youtu.be/gjGq9zKTZpg How to create a game in visual basic(Ant hit game in vb) https://youtu.be/MdhwSYo8qNk https://youtu.be/y3Rq-w5UQzY Marksheet program in C language interview question and answers https://www.youtube.com/watch?v=8dhBq... interview question and answers https://www.youtube.com/watch?v=pC1mV... interview question and answers https://www.youtube.com/watch?v=3Wuli... interview question and answers https://www.youtube.com/channel/UCyNJ... interview question and answers https://www.youtube.com/watch?v=6Z5Oz... interview question and answers https://www.youtube.com/watch?v=Max8P... interview question and answers https://www.youtube.com/watch?v=Xd7Yk... interview question and answers https://www.youtube.com/watch?v=yc3V4... Please watch: "Html interview questions and answers for freshers" https://www.youtube.com/watch?v=8dhBq... -~-~~-~~~-~~-~-
Views: 216 The Coding Bus
Diffie-Hellman: The Math (simplified)
 
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Another lesson from Prof. Gideon Crypto Academy: a brief, yet precise explanation of the mathematical procedure developed by Diffie and Hellman to allow for two strangers on the Internet to establish a confidential channel of communication. Visit the academy at: WeSecure.net/learn.
Views: 16343 Gideon Samid
An Introduction to Elliptic Curve Cryptography
 
58:49
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: 28689 nptelhrd
The future of cryptography
 
01:04:44
Invited talk by Bart Preneel, Eurocrypt 2016.
Views: 1442 TheIACR
Network Security - Basic Cryptography
 
10:12
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 132 intrigano
Winter School on Cryptography: Ideal Lattices and Applications - Vadim Lyubashevsky
 
01:04:43
Winter School on Lattice-Based Cryptography and Applications, which took place at Bar-Ilan University between february 19 - 22. The event's program: http://crypto.biu.ac.il/winterschool2012/ Dept. of Computer Science: http://www.cs.biu.ac.il/ Bar-Ilan University: http://www1.biu.ac.il/indexE.php
Views: 2712 barilanuniversity
[WHIBOX 2016] Towards secure whitebox cryptography - Andrey Bogdanov
 
43:08
Whitebox cryptography aims to provide security for cryptographic algorithms in an untrusted environment where the adversary has full access to their implementation. This setting poses a fundamental challenge to security designers. Indeed, most whitebox solutions published to date have been practically broken. This talk will be three-fold. First, we will show new attacks on existing whitebox schemes which use techniques from symmetric-key cryptanalysis such as integral, differential and linear attacks. Second, we will give our novel approach to guaranteeing key extraction and decomposition security of whitebox encryption by essentially reducing it to the classical security of block ciphers such as AES in the standard black box setting. Next, we will present several families of whitebox schemes together with rigorous security analysis, detailed implementation study, and real-world applications.
Views: 298 ECRYPT
IASG Meeting 1/30/18 - Cryptography
 
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Alex Scheel gives a talk about cryptography and his experiences related to this topic this week: Solving systems of boolean equations is one of the NP-Complete problems in Computer Science. Traditionally thought intractable, the past 20 years of SAT solving competitions has resulted in the development of many fast solvers which have seen adoption by industry. Starting in the early 2000s, the field of logical cryptanalysis was developed by F. Massacci and detailed the application of SAT solvers to cryptanalysis. However, much of the early work until 2010 used cryptography to generate benchmarks for SAT solvers instead of using them for cryptanalysis. In this talk, we present new techniques for horizontally-scalable logical cryptanalysis of hash functions. These techniques allow us to study the structure inherent to the function and easily probe them for weaknesses, giving implications for real-world applications.
Network Security - Kerckhoff's Principle
 
09:05
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 295 intrigano
Known Plaintext Attack
 
10:26
Study Notes and Theory - A CISSP Study Guide Become a member to view more videos, practice questions, flashcards, and join our famous Telegram Group! https://www.studynotesandtheory.com/signup
David A. McGrew, Scalable Efficient Cryptography for Multiple Security Services (July 29, 2004)
 
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From the CISR video library (http://www.cisr.us) David A. McGrew, Cisco Systems Scalable Efficient Cryptography for Multiple Security Services July 29, 2004 at the Naval Postgraduate School (http://www.nps.edu) ABSTRACT The Galois/Counter Mode (GCM) of operation for block ciphers is secure and highly efficient, and can scale to very high data rates. It provides both encryption and message authentication, using universal hashing based on multiplication in the finite field GF(2128). GCM has several features that make it easy to use. It provides multiple security services with a single key, can accept nonces of arbitrary length, can act as a stand-alone message authentication code (MAC), and can be used as an incremental MAC. We will show how application designers using GCM can benefit from these features by providing example uses, including the important case of remote storage authentication. About David A. McGrew, Ph.D.: David works at Cisco Systems where he manages the Advanced Security Development group. His main interest is building practical security systems using cryptography with an emphasis on performance, scalability and deployability. His theoretical interests include cryptanalysis, the design of symmetric ciphers and message authentication codes, and information theory. At Cisco, he researches and develops secure protocols and systems, and represents security issues on the University Research Board. He also co-chairs the IRTF Crypto Forum Research Group and is a member of the International Association for Cryptologic Research and the Internet Society. David is an alumnus of The Ohio State University (B.S, Physics) and Michigan State University (Ph.D., Theoretical Nuclear Physics).
Views: 511 securitylectures
Unboxing The White-Box: Practical Attacks Against Obfuscated Ciphers
 
56:50
by Eloi Sanfelix & Job de Haas & Cristofaro Mune White-Box Cryptography (WBC) aims to provide software implementations of cryptographic algorithms that are resistant against an attacker with full access to the internals. Therefore, the key must remain secure even if the attacker is able to inspect and modify the execution of the cryptographic algorithm. This is often referred to as "security in the White-Box context." In a vanilla implementation of a cryptographic algorithm, access to intermediate results directly leads to extraction of the key. To achieve security in the white-box context, data encoding schemes and strong obfuscation are typically applied. This type of implementation is commonly seen in DRM systems, and is currently gaining momentum in the mobile payment market. Assessing the security of WBC implementations is a challenge both for evaluators and for WBC designers, as it often requires a powerful mix of reverse engineering and applied cryptanalysis skills. In this presentation, we show how attacks typically used to attack hardware cryptosystems can be ported to the white-box settings. We will introduce generic yet practical attacks on WBC implementations of the TDES and AES ciphers. Additionally, we will analyze the requirements for each attack and discuss potential countermeasures. We have applied these attacks to recover cryptographic keys from commercial as well as academic implementations. During the presentation, we will demonstrate several attacks on open source WBC implementations using custom tools. If you are tasked with evaluating the attack resistance of a WBC-based solution, this presentation will provide a better understanding of what White-Box Cryptography is and how to evaluate its robustness against different key extraction attacks. If you are a WBC designer, you will obtain a better understanding of what the most common weak points of such schemes are. Our results highlight the importance of evaluating WBC implementations with respect to these generic attacks in order to provide correct judgment about their level of security.
Views: 2213 Black Hat
14. SSL and HTTPS
 
01:18:18
MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses how to cryptographically protect network communications, as well as how to integrate cryptographic protection of network traffic into the web security model. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 60737 MIT OpenCourseWare
Stanford cybersecurity expert: Dan Boneh
 
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Professor Dan Boneh, head of the applied cryptography group in the Computer Science Department, discusses the importance of making encryption easier to use as computer security breaches become easier to monetize. Professor Boneh's research focuses on applications of cryptography to computer security, and his work includes cryptosystems with novel properties, web security, security for mobile devices, digital copyright protection, and cryptanalysis. He is the author of more than 100 publications in the field and a recipient of the Packard Award, the Alfred P. Sloan Award and the RSA award in mathematics.
Views: 4473 Stanford
Application Attacks (CISSP Free by Skillset.com)
 
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This Application Attacks training video is part of the CISSP FREE training course from Skillset.com (https://www.skillset.com/certifications/cissp). Skillset helps you pass your certification exam. Faster. Guaranteed. https://www.skillset.com Topic: Application Attacks Skill: Software Security Controls Skillset: Software Development Security Certification: CISSP Join the 40,000+ candidates in over 58 countries that have found a faster, better way to pass their certification exam. + Unlimited access to thousands of practice questions + Exam readiness score + Smart reinforcement + Focused training ensures 100% exam readiness + Personalized learning plan + Align exam engine to your current baseline knowledge + Eliminate wasted study time + Exam pass guarantee And much more - https://www.skillset.com
Views: 2654 Skillset
Post Snowden Cryptography or Who Holds Your Keys? - Bart Preneel
 
01:30:35
Post-Snowden cryptography, by Bart Preneel. This lecture presents an overview of the Snowden revelations and the impact on our understanding of the security of our networks and systems. In particular, it discusses the known ways in which sophisticated attackers can bypass or undermine cryptography. We also speculate on how three-letter agencies could be breaking most encryption on the Internet. We relate this to the latest developments in cryptanalysis and discuss which cryptographic algorithms and implementations to select to stay protected. Learning objectives + Understand how sophisticated opponents can undermine cryptographic protection + Understand how to maximize your chances to resist sophisticated opponents using cryptographic techniques This lecture was delivered by Bart Preneel at SecAppDev 2014 in Leuven, Belgium. Professor Bart Preneel of KU Leuven heads the COSIC (COmputer Security and Industrial Cryptography) research group. His main research area is information security with a focus on cryptographic algorithms and protocols as well as their applications to both computer and network security, and mobile communications. He teaches cryptology, network security and coding theory at the KU Leuven and was visiting professor at the Ruhr Universitaet Bochum (Germany), the T.U.Graz (Austria), the University of Bergen (Norway), and the Universiteit Gent (Belgium). In '93-'94 he was a research fellow at the University of California at Berkeley. He has taught intensive courses around the world. He undertakes industrial consulting (Mastercard International, S.W.I.F.T., Proton World International,...), and participates in the work of ISO/IEC JTC1/SC27/WG2. Professor Preneel is Vice President of the International Association for Cryptologic Research (IACR) and co-founder and chairman of LSEC vzw (Leuven Security Excellence Consortium).
Views: 1807 secappdev.org
What is FINANCIAL CRYPTOGRAPHY? What does FINANCIAL CRYPTOGRAPHY mean?
 
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What is FINANCIAL CRYPTOGRAPHY? What does FINANCIAL CRYPTOGRAPHY mean? FINANCIAL CRYPTOGRAPHY meaning - FINANCIAL CRYPTOGRAPHY definition - FINANCIAL 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 Financial cryptography (FC) is the use of cryptography in applications in which financial loss could result from subversion of the message system. Financial cryptography is distinguished from traditional cryptography in that for most of recorded history, cryptography has been used almost entirely for military and diplomatic purposes. Financial cryptography includes the mechanisms and algorithms necessary for the protection of financial transfers, in addition to the creation of new forms of money. Proof of work and various auction protocols fall under the umbrella of Financial Cryptography. Hashcash is being used to limit spam. Financial cryptography has been seen to have a very broad scope of application. Ian Grigg sees financial cryptography in seven layers, being the combination of seven distinct disciplines: cryptography, software engineering, rights, accounting, governance, value, and financial applications. Business failures can often be traced to the absence of one or more of these disciplines, or to poor application of them. This views Financial Cryptography as an appropriately cross-discipline subject. Indeed, inevitably so, given that finance and cryptography are each built upon multiple disciplines. Cryptographers think of the field as originating in the work of Dr David Chaum who invented the blinded signature. This special form of a cryptographic signature permitted a virtual coin to be signed without the signer seeing the actual coin, and permitted a form of digital token money that offered untraceability. This form is sometimes known as Digital currency. A system that was widely used during the 1970s-1990s and previously developed cryptographic mechanism is the Data Encryption Standard, which was used primarily for the protection of electronic funds transfers. However, it was the work of David Chaum that excited the cryptography community about the potential of encrypted messages as actual financial instruments. As part of a business model, Financial Cryptography followed the guide of cryptography and only the simplest ideas were adopted. Account money systems protected by SSL such as PayPal and e-gold were relatively successful, but more innovative mechanisms, including blinded token money, were not. Financial cryptography is to some extent organized around the annual meeting of the International Financial Cryptography Association, which is held each year in a different location.
Views: 56 The Audiopedia
Real Time Cryptanalysis of Bluetooth Encryption with Con ...
 
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Talk at crypto 2013. Authors: Bin Zhang 0003, Chao Xu, Dengguo Feng
Views: 286 TheIACR
Winter School on Cryptography Symmetric Encryption: Generic Cryptanalytic Techniques - Orr Dunkelman
 
01:32:12
Generic Cryptanalytic Techniques, a lecture by Orr Dunkelman. The topic of the 4th Annual Bar-Ilan Winter School on Cryptography held in January 2014, was Symmetric Encryption in Theory and in Practice. The winter school studied symmetric encryption in theory and in practice, and included a study of the theoretical foundations of symmetric encryption on the one hand, and practical constructions and cryptanalysis on the other hand. As every year, the event organizers were Prof. Yehuda Lindell and Prof. Benny Pinkas, of BIU's Department of Computer Science. This year,the Winter School featured speakers from such institutions as the Royal Holloway at the University of London , and the University of Wisconsin - Madison. For all videos of this playlist: https://www.youtube.com/playlist?list=PLXF_IJaFk-9BmvxWhnxPId32CPJhVtU6D 4th Annual Bar-Ilan Winter School on Cryptography: http://crypto.biu.ac.il/winterschool2014/ Prof. Lindell's Lab http://www1.biu.ac.il/indexE.php?id=8043&pt=30&pid=7711&level=2&cPath=7702,7711,8043 Prof. Pinkas' Lab http://www1.biu.ac.il/indexE.php?id=8046&pt=30&cPath=7702,7711,8046 Dept. of Computer Science: http://cs.biu.ac.il/en/ Bar-Ilan University: http://www1.biu.ac.il/en
Views: 456 barilanuniversity
Block Cipher Standards (DES)
 
50:12
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: 29396 nptelhrd
Network Security - Symmetric Key Algorithm
 
08:41
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 2 - Symmetric Key Cryptography In this module we present the basic mechanism of symmetric key crytography algorithms, discuss the DES and AES standard, describe the criteria for selecting AES standard, present the block cipher operating modes and discuss how the block swapping attacks and replay attacks can be prevented and detected. Learning Objectives • Understand the criteria for selecting crypto algorithms • Perform cryptoanalysis on simple ciphers • Select operating modes for symmetric encryption and to prevent block swapping and replay attacks • Understand DES and AES standards and their buildig blocks Subscribe at: https://www.coursera.org
Views: 205 intrigano
Winter School on Cryptography: A History of Lattice-Based Encryption - Vadim Lyubashevsky
 
01:00:06
Winter School on Lattice-Based Cryptography and Applications, which took place at Bar-Ilan University between february 19 - 22. The event's program: http://crypto.biu.ac.il/winterschool2012/ Dept. of Computer Science: http://www.cs.biu.ac.il/ Bar-Ilan University: http://www1.biu.ac.il/indexE.php
Views: 3563 barilanuniversity
INTRODUCTION TO CRYPTOGRAPHY IN HINDI
 
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find relevant notes at-https://viden.io/
Views: 55236 LearnEveryone
Network Security - Advanced Encryption Standard
 
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Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 2 - Symmetric Key Cryptography In this module we present the basic mechanism of symmetric key crytography algorithms, discuss the DES and AES standard, describe the criteria for selecting AES standard, present the block cipher operating modes and discuss how the block swapping attacks and replay attacks can be prevented and detected. Learning Objectives • Understand the criteria for selecting crypto algorithms • Perform cryptoanalysis on simple ciphers • Select operating modes for symmetric encryption and to prevent block swapping and replay attacks • Understand DES and AES standards and their buildig blocks Subscribe at: https://www.coursera.org
Views: 30 intrigano
PKI Key Management Process (CISSP Free by Skillset.com)
 
07:19
This Hashing Algorithm training video is part of the CISSP FREE training course from Skillset.com (https://www.skillset.com/certifications/cissp). Skillset helps you pass your certification exam. Faster. Guaranteed. https://www.skillset.com Topic: Key Management Process in PKI Skill: Key Management Skillset: Security Engineering Certification: CISSP Join the 40,000+ candidates in over 58 countries that have found a faster, better way to pass their certification exam. + Unlimited access to thousands of practice questions + Exam readiness score + Smart reinforcement + Focused training ensures 100% exam readiness + Personalized learning plan + Align exam engine to your current baseline knowledge + Eliminate wasted study time + Exam pass guarantee And much more - https://www.skillset.com
Views: 3387 Skillset
PhotoProof: Cryptographic Image Authentication for Any Set of Permissible Transformations
 
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PhotoProof: Cryptographic Image Authentication for Any Set of Permissible Transformations Assa Naveh and Eran Tromer (Tel Aviv University) Presented at the 2016 IEEE Symposium on Security & Privacy May 23–25, 2016 San Jose, CA http://www.ieee-security.org/TC/SP2016/ ABSTRACT Since the invention of the camera, photos have been used to document reality and to supply proof of events. Yet today it is easy to fabricate realistic images depicting events that never happened. Thus, dozens of papers strive to develop methods for authenticating images. While some commercial cameras already attach digital signatures to photographs, the images often undergo subsequent transformations (cropping, rotation, compression, and so forth), which do not detract from their authenticity, but do change the image data and thus invalidate the signature. Existing methods address this by signing derived image properties that are invariant to some set of transformations. However, these are limited in the supported transformations, and often offer weak security guarantees. We present PhotoProof, a novel approach to image authentication based on cryptographic proofs. It can be configured, according to application requirements, to allow any permissible set of (efficiently computable) transformations. Starting with a signed image, our scheme attaches, to each legitimately derived image, a succinct proof of computational integrity attesting that the transformation was permissible. Anyone can verify these proofs, and generate updated proofs when applying further permissible transformations. Moreover, the proofs are zero-knowledge so that, for example, an authenticated cropped image reveals nothing about the cropped-out regions. PhotoProof is based on Proof-Carrying Data (PCD), a cryptographic primitive for secure execution of distributed computations. We describe the new construction, prove its security, and demonstrate a working prototype supporting a variety of permissible transformations.
Exploiting Vulnerabilities in Cryptographic Hash Functions Based on Reconfigurable Hardware
 
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DOTNET PROJECTS,2013 DOTNET PROJECTS,IEEE 2013 PROJECTS,2013 IEEE PROJECTS,IT PROJECTS,ACADEMIC PROJECTS,ENGINEERING PROJECTS,CS PROJECTS,JAVA PROJECTS,APPLICATION PROJECTS,PROJECTS IN MADURAI,M.E PROJECTS,M.TECH PROJECTS,MCA PROJECTS,B.E PROJECTS,IEEE PROJECTS AT MADURAI,IEEE PROJECTS AT CHENNAI,IEEE PROJECTS AT COIMBATORE,PROJECT CENTER AT MADURAI,PROJECT CENTER AT CHENNAI,PROJECT CENTER AT COIMBATORE,BULK IEEE PROJECTS,REAL TIME PROJECTS,RESEARCH AND DEVELOPMENT,INPLANT TRAINING PROJECTS,STIPEND PROJECTS,INDUSTRIAL PROJECTS,MATLAB PROJECTS,JAVA PROJECTS,NS2 PROJECTS, Ph.D WORK,JOURNAL PUBLICATION, M.Phil PROJECTS,THESIS WORK,THESIS WORK FOR CS
Views: 63 ranjith kumar
Karate(1983)How Indian Intelligence works- Cryptanalysis - Roja (1992)
 
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http://en.wikipedia.org/wiki/William_Eldridge_Odom Cryptanalysis (from the Greek kryptós, "hidden", and analýein, "to loosen" or "to untie") is the study of methods for obtaining the meaning of encrypted information, without access to the secret information that is normally required to do so. Typically, this involves knowing how the system works and finding a secret key. In non-technical language, this is the practice of codebreaking or cracking the code, although these phrases also have a specialised technical meaning . Even though the goal has been the same, the methods and techniques of cryptanalysis have changed drastically through the history of cryptography, adapting to increasing cryptographic complexity, ranging from the pen-and-paper methods of the past, through machines like Bombes and Colossus computers in World War II, to the computer-based schemes of the present. The results of cryptanalysis have also changed — it is no longer possible to have unlimited success in codebreaking, and there is a hierarchical classification of what constitutes an attack. In the mid-1970s, a new class of cryptography was introduced: asymmetric cryptography. Methods for breaking these cryptosystems are typically radically different from before, and usually involve solving carefully constructed problems in pure mathematics, the best-known being integer factorization. In practice, frequency analysis relies as much on linguistic knowledge as it does on statistics, but as ciphers became more complex, mathematics became more important in cryptanalysis. This change was particularly evident before and during World War II, where efforts to crack Axis ciphers required new levels of mathematical sophistication. Moreover, automation was first applied to cryptanalysis in that era with the Polish Bomba device, the British Bombe development of it, the use of punched card equipment, and in the Colossus computers — the first electronic digital computers to be controlled by a program. Successful cryptanalysis has undoubtedly influenced history; the ability to read the presumed-secret thoughts and plans of others can be a decisive advantage. For example, in England in 1587, Mary, Queen of Scots was tried and executed for treason for her involvement in three plots to assassinate Elizabeth I of England which were known about because her coded correspondence with fellow conspirators had been deciphered by Thomas Phelippes; in World War I, the breaking of the Zimmermann Telegram was instrumental in bringing the United States into the war; in World War II, the cryptanalysis of the German ciphers — including the Enigma machine and the Lorenz cipher — has been credited with everything between shortening the end of the European war by a few months to determining the eventual result (see Ultra). The United States also benefited from the cryptanalysis of the Japanese Purple code (see Magic). Governments have long recognized the potential benefits of cryptanalysis for intelligence, both military and diplomatic, and established dedicated organizations devoted to breaking the codes and ciphers of other nations, for example, GCHQ and the NSA, organizations which are still very active today. http://en.wikipedia.org/wiki/Cryptanalysis http://en.wikipedia.org/wiki/Indian_rupee India was one of the earliest issuers of coins (circa 6th century BC). The first "rupee" is believed to have been introduced by Sher Shah Suri (1486--1545), based on a ratio of 40 copper pieces (paisa) per rupee. Among the earliest issues of paper rupees were those by the Bank of Hindustan (1770--1832), the General Bank of Bengal and Bihar (1773--75, established by Warren Hastings) and the Bengal Bank (1784--91), amongst others. Historically, the rupee, derived from the Sanskrit word raupya, which means silver, was a silver coin. This had severe consequences in the nineteenth century, when the strongest economies in the world were on the gold standard. The discovery of vast quantities of silver in the U.S. and various European colonies resulted in a decline in the relative value of silver to gold. Suddenly the standard currency of India could not buy as much from the outside world. This event was known as "the fall of the rupee". Currency notes are printed at the Currency Note Press, Nashik, Bank Note Press, Dewas, Bharatiya Note Mudra Nigam (P) Limited presses at Salboni and Mysore and at the Watermark Paper Manufacturing Mill, Hoshangabad. The current series of banknotes, which began in 1996, is called the Mahatma Gandhi series. At present, banknotes are issued in the denominations of 5, 10, 20, 50, 100, 500 and 1000. The Zero rupee note is not an official government issue but a symbol of protest and it is printed and distributed by an NGO in India. http://en.wikipedia.org/wiki/Roja
Cryptanalysis Workshop Session 1
 
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10:00 ΓÇô 11:00 AM Title: Unaligned Rebound Attack for KECCAK Speaker: Thomas Peyrin Affiliation: Nanyang Technological University, Singapore Abstract: In this talk, we analyze the internal permutations of KECCAK, one of the NIST SHA-3 competition finalists, in regard to differential properties. By carefully studying the elements composing those permutations, we are able to derive most of the best known differential paths for up to 5 rounds. We then use these unaligned differential paths and adapt the rebound attack in order to derive distinguishers for up to 8 rounds of the internal permutations of the submitted version of KECCAK. Our results have been implemented and verified experimentally on a small version of KECCAK and this is currently the best known differential attack against KECCAK. 11:00 AM ΓÇô 12:00 PM Title: Toward Extending Integral Based Known-Key Distinguisher on AES Speaker: Yu Sasaki Affiliation: NTT Corporation, Japan Abstract: We revisit the integral based known-key distinguisher on AES. First, we give a summary of two papers; the original distinguisher by Knudsen and Rijmen at Asiacrypt 2007 and its formalization called middletext distinguisher proposed by Minier et al. at Africacrypt 2009. We then point out that, with following the formalization by Minier et al., the previous integral known-key distinguisher can be extended to a 10-round middletext distinguisher.
Views: 538 Microsoft Research
Post-Quantum Cryptography @ FAU
 
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Video gives clear description of cryptography and information on how it affects you. Reza Azarderakhsh, Ph.D., Institute for Sensing and Embedded Network Systems Engineering, Florida Atlantic University
Cryptographic Hash Functions
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 12177 nptelhrd
The Basics of Cryptography
 
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This webinar looks at the fundamentals of cryptography and how it can be used for keeping data secure from attackers. Subscribe to the ITMPI to access over 1000+ hours of on demand, PDU approved webinars: http://www.itmpi.org/subscribe Free membership gives you access to over 150 live, PDU approved, educational broadcasts throughout the year at www.itmpi.org/webinars Premium membership gives you unlimited access -- for a period of one whole year -- to over 1000+ hours of archived PDU approved recordings at www.itmpi.org/library Use coupon code YOUTUBE during checkout to reduce your premium membership price from $199 per year to $99 per year. That's a $100 discount. And that's $99 for unlimited PDUs for ONE WHOLE YEAR! CONNECT WITH US: Google+ - http://bit.ly/13TR5FU Facebook - http://www.facebook.com/ITMPI Twitter - http://www.twitter.com/ITMPI LinkedIN - http://linkd.in/1tKbrOB Pinterest - http://www.pinterest.com/itmpi/ ABOUT US: The IT Metrics and Productivity Institute (ITMPI) is an organization dedicated to best practices education in IT management, project management, and software development. Our mission is to pull together the expertise and educational efforts of the world's leading IT thought leaders and to create a single online destination where IT practitioners and executives can meet all of their educational and professional development needs. We also have created the largest repository of high quality, PDU and CDU approved, online education in the world. ABOUT THE PRESENTER: Dr. Mark Ciampa is an Associate Professor of Information Systems in the Gordon Ford College of Business at Western Kentucky University in Bowling Green, Kentucky. Prior to this he was an Associate Professor and served as the Director of Academic Computing at Volunteer State Community College in Gallatin, Tennessee for 20 years. Mark has worked in the IT industry as a computer consultant for the U.S. Postal Service, the Tennessee Municipal Technical Advisory Service, and the University of Tennessee. He has published 17 articles in peer-reviewed journals and is also the author of over 20 technology textbooks, including Security+ Guide to Network Security Fundamentals 5ed, CWNA Guide to Wireless LANs 2ed, Guide to Wireless Communications, Security Awareness: Applying Practical Security In Your World, and Networking BASICS. Dr. Ciampa holds a PhD in technology management with a specialization in digital communication systems from Indiana State University.
Network Security - AES Selection Criteria
 
13:04
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 2 - Symmetric Key Cryptography In this module we present the basic mechanism of symmetric key crytography algorithms, discuss the DES and AES standard, describe the criteria for selecting AES standard, present the block cipher operating modes and discuss how the block swapping attacks and replay attacks can be prevented and detected. Learning Objectives • Understand the criteria for selecting crypto algorithms • Perform cryptoanalysis on simple ciphers • Select operating modes for symmetric encryption and to prevent block swapping and replay attacks • Understand DES and AES standards and their buildig blocks Subscribe at: https://www.coursera.org
Views: 46 intrigano
Side Channel Analysis of Cryptographic Implementations
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 5629 nptelhrd
Pavlo Suikov — Peculiar Math in Real-World Applications
 
01:27:17
This talk is devoted to selected mathematical methods used in pragmatic software development. The talk includes such themes as geometric algebras, Shannon entropy, Curry-Howard correspondence, and a bit of category and Galois theory. The talk was held at Root Linux Conference 2017. Learn more: http://linux.globallogic.com/materials
Views: 346 GlobalLogicUkraine