Search results “Opportunities in whitebox cryptography”
Unboxing The White-Box: Practical Attacks Against Obfuscated Ciphers
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: 2190 Black Hat
Understanding the execution flow of the binary - White Box Unboxing 1/4 - RHme3 Qualifier
We start to reverse engineer a crypto binary with Hopper. Challenge: https://github.com/Riscure/Rhme-2017/tree/master/prequalifications/White%20Box%20Unboxing -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 9270 LiveOverflow
10 - Demonstration of ASPIRE White-Box Cryptography Tools
In this movie, we present and demonstrate the white-box cryptography protection technique and tool to protect cryptographic keys. The technique was contributed by Nagravision, the tool support was co-implemented by Nagravision and Fondazione Bruno Kessler. The ASPIRE project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement number 609734.
Software Side-Channel attack on AES - White Box Unboxing 4/4 - RHme3 Qualifier
Solving the AES whitebox crypto challenge without even touching crypto or AES. The tools: https://github.com/SideChannelMarvels Challenge: https://github.com/Riscure/Rhme-2017/tree/master/prequalifications/White%20Box%20Unboxing -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 5730 LiveOverflow
[CB17] Key recovery attacks against commercial white-box cryptography implementations
White-box cryptography aims to protect cryptographic primitives and keys in software implementations even when the adversary has a full control to the execution environment and an access to the implementation of the cryptographic algorithm. It combines mathematical transformation with obfuscation techniques so it’s not just obfuscation on a data and a code level but actually algorithmic obfuscation. ​ In the white-box implementation, cryptographic keys are mathematically transformed so that never revealed in a plain form, even during execution of cryptographic algorithms. With such security in the place, it becomes extremely difficult for attackers to locate, modify, and extract the cryptographic keys. Although all current academic white-box implementations have been practically broken by various attacks including table-decomposition, power analysis attack, and fault injection attacks, There are no published reports of successful attacks against commercial white-box implementations to date. When I have assessed Commercial white box implementations to check if they were vulnerable to previous attacks, I found out that previous attacks failed to retrieve a secret key protected with the commercial white-box implementation. Consequently, I modified side channel attacks to be available in academic literature and succeeded in retrieving a secret key protected with the commercial white-box cryptography implementation. This is the first report that succeeded to recover secret key protected with commercial white-box implementation to the best of my knowledge in this industry. In this talk, I would like to share how to recover the key protected with commercial white-box implementation and present security guides on applying white-box cryptography to services more securely. Sanghwan Ahn I am a senior security engineer currently working in the security department at LINE corp and mostly engaged in security assessment, security architecture design and development. I like to analyze the program and find vulnerabilities in it also, am interested in technology related to security. In recent years, I have been interested in white-box cryptography doing various researches such as implementation, cryptanalysis.
Differential Computation Analysis  Hiding your White Box Designs is Not Enough
Joppe W. Bos and Charles Hubain and Wil Michiels and Philippe Teuwen, CHES 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27856
Views: 358 TheIACR
Differential Computation Analysis: Hiding Your White-Box Designs is Not Enough
Although all current scientific white-box approaches of standardized cryptographic primitives are broken, there is still a large number of companies which sell "secure" white-box products. After an introduction to the concept of white-box cryptography, I will introduce a new approach to assess the security of white-box implementations which requires neither knowledge about the look-up tables used nor any reverse engineering effort. This differential computation analysis (DCA) attack is the software counterpart of the differential power analysis attack as applied by the cryptographic hardware community. We developed plugins to widely available dynamic binary instrumentation frameworks to produce software execution traces which contain information about the memory addresses being accessed. We show how DCA can extract the secret key from all publicly available (non-commercial) white-box programs implementing standardized cryptography by analyzing these traces to identify secret-key dependent correlations. This work received the best paper award at the Conference on Cryptographic Hardware and Embedded Systems (CHES) 2016 and is joint work with Charles Hubain, Wil Michiels, and Philippe Teuwen.
Views: 519 Microsoft Research
RSA Power Analysis Side-Channel Attack - rhme2
Preparing an arduino nano board to perform a power analysis side channel attack and explaining how that can be used to break RSA. Also proof I can't count. RSA video: https://www.youtube.com/watch?v=sYCzu04ftaY rhme2 by riscure: http://rhme.riscure.com/home Oscilloscope: Rigol DS2072A Soldering Station: Weller WD1 -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/
Views: 13463 LiveOverflow
Whitebox Security
http://brianvenge.com produced this video. WhiteOPS offers unparalleled visibility into the organizational data by answering the crucial questions: Where does sensitive data reside? - Who did what? - Who has access to what? Contact us for all your web video needs
Views: 328 Brian Venge
[WHIBOX 2016] Towards secure whitebox cryptography - Andrey Bogdanov
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: 290 ECRYPT
Kimchicon 2017 Session - Practical attacks on the white-box cryptography
Kimchicon 2017 Session - Practical attacks on the white-box cryptography and secure WBC implementation in your service 화이트박스 암호화는 일종의 난독화된 암호 알고리즘으로 디바이스의 모든 권한을 공격자가 가지고 있는 화이트박스 위협 모델에 대응하기 위해 고안되었습니다. 화이트박스 암호는 암호화에 사용되는 키를 보호하는데 초점이 맞춰져 있으며, 암호화키는 어떠한 경우에도 평문으로 노출되지 않습니다. 화이트박스 암호화는 하드웨어 의존적인 TEE(Trusted execution environment)와 달리 소프트웨어 기반으로 동작하므로, 디바이스/플랫폼에 대한 제한 없이 범용적으로 사용될 수 있는 장점이 있습니다. 학계에서 발표된 모든 화이트박스 암호화 알고리즘은 이미 깨졌지만 현재까지 상용화이트박스암호 솔루션에 대한 취약점은 보고되지 않았습니다. 보안 아키텍쳐를 설계하는 입장에서 단순히 공격 사례가 없었다는것으로 상용화이트 박스 암호 솔루션은 안전하다고 판단할 수 도 없었습니다. 게다가 어느정도의 보안 강도를 가지고 있는지 구체적으로 판단할 수 있는 자료와 어떻게 화이트박스를 구성하는것이 안전한지에 대한 가이드 라인도 없었습니다. 화이트박스 암호 알고리즘의 위협 모델(weak/strong stability)에 대해서 정확히 파악하지 않고 서비스에 적용했을 때, 여러가지 공격이 가능할 수 있기 때문에 위협 모델을 상세히 파악 하는것이 중요하다고 생각했고 화이트 박스 암호에 대한 조사를 시작했습니다. 이 발표에서 저는 화이트박스암호화 알고리즘을 깰 수 있는 현실적인 공격 방법들과 상용 화이트박스 암호 솔루션의 보안 강도/ 화이트박스 암호의 강점과 약점, 다양한 공격에 대항해서 암호키를 안전하게 보호할 수 있도록 시스템을 구성하는 방법에 대해서 이야기하려고합니다. Speaker : Sanghwan Awn - 라인의 시큐리티를 담당하고 있습니다. 주로 Application의 보안평가와 보안 아키텍쳐 설계 및 개발을 하고 있습니다. - 프로그램을 분석하고 취약점을 찾는것을 좋아합니다. 그리고 시큐리티와 관련된 기술에 관심이 많습니다. - 최근에는 화이트 박스 암호에 관심이 생겨, 화이트 박스 암호 구현, 분석, 공격 등의 여러가지 연구를 하고 있습니다.
Views: 215 KimchiCon
An introduction to Whitebox GAT for raster/LiDAR applications
Here Whitebox's main developer John Lindsay describes the little known but extremely powerful Geographic Information System (GIS) software Whitebox GAT. The audio was recorded at GISRUK 2014 in Glasgow
Views: 2177 Robin Lovelace
Towards Practical Whitebox cryptography  Optimizing Efficiency and Space Hardness
Andrey Bogdanov and Takanori Isobe and Elmar Tischhauser. Talk at Asiacrypt 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27893
Views: 233 TheIACR
What is OBFUSCATION? What does OBFUSCATION mean? OBFUSCATION meaning & explanation
What is OBFUSCATION? What does OBFUSCATION mean? OBFUSCATION meaning - OBFUSCATION pronunciation - OBFUSCATION definition - OBFUSCATION explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Obfuscation is the obscuring of intended meaning in communication, making the message confusing, willfully ambiguous, or harder to understand. It may be intentional or unintentional (although the former is usually connoted) and may result from circumlocution (yielding wordiness) or from use of jargon or even argot (yielding economy of words but excluding outsiders from the communicative value). Unintended obfuscation in expository writing is usually a natural trait of early drafts in the writing process, when the composition is not yet advanced, and it can be improved with critical thinking and revising, either by the writer or by another person with sufficient reading comprehension and editing skills. The name comes from Latin obfuscatio, from obfuscare ("to darken"). Obfustication is a common variant of the name, especially in British English. Synonyms include beclouding and abstrusity. Obscurantism is intentional obscurity, whether by withholding communication, obfuscating it, or both. Obfuscation may be used for many purposes. Doctors have been accused of using jargon to conceal unpleasant facts from a patient; American author Michael Crichton claimed that medical writing is a "highly skilled, calculated attempt to confuse the reader". B. F. Skinner, noted psychologist, commented on medical notation as a form of multiple audience control, which allows the doctor to communicate to the pharmacist things which might be opposed by the patient if they could understand it. "Eschew obfuscation", also stated as "eschew obfuscation, espouse elucidation", is a humorous fumblerule used by English teachers and professors when lecturing about proper writing techniques. Literally, the phrase means "avoid being unclear" or "avoid being unclear, support being clear", but the use of relatively uncommon words causes confusion in much of the audience (those lacking the vocabulary), making the statement an example of irony, and more precisely a heterological phrase. The phrase has appeared in print at least as early as 1959, when it was used as a section heading in a NASA document. An earlier similar phrase appears in Mark Twain's Fenimore Cooper's Literary Offenses, where he lists rule fourteen of good writing as "eschew surplusage". The philosopher Paul Grice used the phrase in the "Maxim of Manner", one of the Gricean maxims. In white-box cryptography, obfuscation refers to the protection of cryptographic keys from extraction when they are under the control of the adversary, e.g., as part of a DRM scheme.
Views: 1864 The Audiopedia
White-box Cryptomania, Pascal Paillier
Invited talk by Pascal Paillier, presented at Asiacrypt 2017.
Views: 134 TheIACR
Obfuscation I
Amit Sahai, UCLA Cryptography Boot Camp http://simons.berkeley.edu/talks/amit-sahai-2015-05-19a
Views: 2960 Simons Institute
Some failed attack ideas - White Box Unboxing 3/4 - RHme3 Qualifier
Exploring some of the notes and thoughts I had analyzing the whitebox crypto challenge. Challenge: https://github.com/Riscure/Rhme-2017/tree/master/prequalifications/White%20Box%20Unboxing -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 4673 LiveOverflow
17 - Demonstration of Renewable White-Box Cryptography Tool Support
In this video, we present and demonstrate some of the functionality that ASPIRE has developed for deploying renewable white-box cryptography. With this protection, cryptographic primitives can be operated on keys without giving man-at-the-end attackers the opportunity to steal the keys. Moreover, by delivering the code and data implementing the primitives (and embedding the keys) at run-time, new keys can be delivered at any point in time. Automated scripts enable a server to generate and deliver those keys on demand. The ASPIRE project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement number 609734.
Phong Nguyen - Lattice-Based Cryptography
Title: Lattice-Based Cryptography Speaker: Phong Nguyen (Inria and CNRS/JFLI and the University of Tokyo) 2016 Post-Quantum Cryptography Winter School https://pqcrypto2016.jp/winter/
Views: 1304 PQCrypto 2016
Efficient and Provable White Box Primitives
Pierre-Alain Fouque and Pierre Karpman and Paul Kirchner and Brice Minaud. Talk at Asiacrypt 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27872
Views: 183 TheIACR
Side-Channel Attacks on Everyday Applications
by Taylor Hornby In 2013, Yuval Yarom and Katrina Falkner discovered the FLUSH+RELOAD L3 cache side-channel. So far it has broken numerous implementations of cryptography including, notably, the AES and ECDSA in OpenSSL and the RSA GnuPG. Given FLUSH+RELOAD's astounding success at breaking cryptography, we're lead to wonder if it can be applied more broadly, to leak useful information out of regular applications like text editors and web browsers whose main functions are not cryptography. In this talk, I'll briefly describe how the FLUSH+RELOAD attack works, and how it can be used to build input distinguishing attacks. In particular, I'll demonstrate how when the user Alice browses around the top 100 Wikipedia pages, the user Bob can spy on which of those pages she's visiting. This isn't an earth-shattering attack, but as the code I'm releasing shows, it can be implemented reliably. My goal is to convince the community that side channels, FLUSH+RELOAD in particular, are useful for more than just breaking cryptography. The code I'm releasing is a starting point for developing better attacks. If you have access to a vulnerable CPU running a suitable OS, you should be able to reproduce the attack within minutes after watching the talk and downloading the code.
Views: 8312 Black Hat
How to Reveal the Secrets of an Obscure White-Box Implementation | Junwei Wang | RWC 2018
Technical talks from the Real World Crypto conference series.
Views: 525 Real World Crypto
Cryptographic Key Protection
Watch the short video to learn: - How cryptographic keys are being used in a variety of applications - Techniques hackers are leveraging to steal keys - Arxan’s unique approach to key protection (that is available through Arxan – and IBM as well) https://www.arxan.com/technology/cryptographic-key-protection/
Views: 451 Arxan Technologies
Property Developers Secrets Mastermind (PDSM) - White Box Property Solutions Ltd
Masterminding is a fantastic way to grow your business, no matter what you are doing. On the Property Developers Secrets Mastermind you will share your challenges with like minded people and overcome them together. Remember what other people are facing in the property journey might be what you will face in the future, so knowing how they overcame the challenge will help you grow faster.
TL;DR it's AES... - White Box Unboxing 2/4 - RHme3 Qualifier
Long story short, we reverse more and more of the binary and with some hints we realize, it's AES afterall. Challenge: https://github.com/Riscure/Rhme-2017/tree/master/prequalifications/White%20Box%20Unboxing -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 5993 LiveOverflow
Jordi Ventanyol: Atacando implementaciones Whitebox Cryptography
Máster en Ciberseguridad: https://il3ciberseguridad.com/ En la presentación se introducirán los conceptos de Whitebox Cryptography a través de un ejemplo de implementación práctico del algoritmo simétrico AES. La charla se centrará luego en distintos tipos de ataques a dichas implementaciones Whitebox, especialmente en ataques de DFA (Differential Fault Analysis).
An Overview of API Underprotection - AppSecUSA 2017
An Overview of API Underprotection The OWASP 2017 top ten is adding a new category of underprotected APIs. This reflects how RESTful Web APIs are rapidly becoming the backbone of communication on the modern web. A whole series of new challenges are thus presented for dealing with security and access authorization issues. These are not well covered by existing tools or techniques. This talk will cover some of the potential threats that result from failure to secure Web APIs sufficiently and discuss some of the emerging security technologies in the field. In this API driven world there are a more complex set of API consuming clients, some of which may need to embed access credentials such as API keys. We will discuss the differences between software authorization via static API keys and user authorization via OAuth2 and the interplay between them. We will pay particular attention to API consumers such a mobile apps where the code must be published in the public domain. We will look at the typically poor level of practice in concealment of access credentials such as API keys in these apps. Some practical advice with code examples will be provided about how to improve the security posture of mobile apps accessing an API. We will cover the use of TLS and how it is not an effective countermeasure to credentials being extracted unless certificate pinning is also used to prevent Man-in-the-Middle attacks against the app. There will be some practical advice on how to implement TLS pinning with code examples. Finally we will look at more advanced techniques such as app hardening, white box cryptography and software attestation for mobile applications where security is crucial. Attendees should gain a good understanding of the underprotected API problem, some short term practical tips to improve their API security posture with minimal effort and an appreciation of emerging tools and technologies that enable a significant step change in security. Richard Taylor CTO, Critical Blue Ltd Richard Taylor co-founded CriticalBlue in 2002 to commercialise new techniques for code performance analysis and optimization. CriticalBlue has consulted for various OEMs improve software performance for Linux and Android system. - Managed by the official OWASP Media Project https://www.owasp.org/index.php/OWASP_Media_Project
Views: 1246 OWASP
SHA1 length extension attack on the Secure Filesystem - rhme2 Secure Filesystem (crypto 100)
The first challenge I solved for the embedded hardware CTF by riscure. It implements a Secure Filesystem which prevents you from readeing files without knowing the correct token for a file. Load the challenge on your own board: https://github.com/Riscure/Rhme-2016 -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/
Views: 10128 LiveOverflow
Final Year Projects | White-Box Traceable Ciphertext-Policy Attribute-Based Encryption Supporting
Final Year Projects | White-Box Traceable Ciphertext-Policy Attribute-Based Encryption Supporting Any Monotone Access Structures Including Packages ======================= * Complete Source Code * Complete Documentation * Complete Presentation Slides * Flow Diagram * Database File * Screenshots * Execution Procedure * Readme File * Addons * Video Tutorials * Supporting Softwares Specialization ======================= * 24/7 Support * Ticketing System * Voice Conference * Video On Demand * * Remote Connectivity * * Code Customization ** * Document Customization ** * Live Chat Support * Toll Free Support * Call Us:+91 967-774-8277, +91 967-775-1577, +91 958-553-3547 Shop Now @ http://clickmyproject.com Get Discount @ https://goo.gl/lGybbe Chat Now @ http://goo.gl/snglrO Visit Our Channel: http://www.youtube.com/clickmyproject Mail Us: [email protected]
Views: 429 ClickMyProject
cryptography tools - 10 - demonstration of aspire white-box cryptography tools
📌FREE Signals for Crypto Trading Every Day! 🚀100% Profit ➡ https://t.me/CryptoTopX +🔥Hurry to Sign Up Crypto Exchange (💲Only 1000 users/day)+Bonus ➡ https://goo.gl/cy6fmV Introduction to cryptographic tools.- modern quantum cryptographic tasks and protocols. What is cryptography - introduction to cryptography - lesson 1.2017 easy privacy & encryption tools || online, text and email security. Cryptography basics: what is encryption and decryption. Cryptography basics for embedded developers - eystein stenberg mender many vulnerabilities and breaches happen due to incorrect use of cryptographic mechanisms like encryption. His holds a master’s degree in cryptography and his writing credits include “distributing a private key generator in ad hoc networks. Cryptography basics for embedded developers by eystein stenberg. Cryptogame gameplay trailer | interactive story and cryptography tools. Available online as "the cryptogame" - a cryptography based interactive fiction. Aaj hum baat karenge cryptography ke bare me ki ye kya hota hai aur iska itemaal kaise aur kaha hota hai. Introduction to cryptographic tools. Cryptography basics for embedded developers - eystein stenberg mender many vulnerabilities and breaches happen due to incorrect use of cryptographic mechanisms like encryption.Cryptography assignment.[hindi] what is cryptography ? Then it is called asymmetric key cryptography or public key cryptography... To provide a set of cryptography tools using which teachers can demonstrate and students can practice various cryptography techniques..Well one way of ensuring security can be use of cryptography!. We will highlight implementations of cryptographic mechanisms that help meet the performance needs of embedded devices including elliptic curve cryptography. - be familiar with modern quantum cryptography – beyond quantum key distribution...10 - demonstration of aspire white-box cryptography tools. Best cryptography and data privacy software (open source / free). To provide a set of cryptography tools using which teachers can demonstrate and students can practice various cryptography techniques..What is cryptography - introduction to cryptography - lesson 1. A) cryptography basics (00:21):. In this movie we present and demonstrate the white-box cryptography protection technique and tool to protect cryptographic keys. Best cryptography and data privacy software (open source / free). In this movie we present and demonstrate the white-box cryptography protection technique and tool to protect cryptographic keys. And de transforming at reciever's side forms the basic model of cryptography...My top 5 crypto tools !!We will wrap up with common pitfalls libraries and tools relevant for secure use of cryptography for embedded devices...
Views: 2 Crypto Top 2018
Supersingular isogeny based cryptography gets practical | Patrick Longa (Microsoft R.) | RWC 2018
Technical talks from the Real World Crypto conference series.
Views: 474 Real World Crypto
Cryptography & Obfuscation - MultiObfuscator v2 Demo
Views: 1645 EmbeddedSW.net
White Box Testing
Views: 285 TxFiPham
Watch Using The Various Cryptography Functions Of Openssl'S Crypto Library. ( Aes - Des E.G)
📌FREE Signals for Crypto Trading Every Day! 🚀100% Profit ➡ https://t.me/CryptoTopX + 🔥Hurry to Sign Up Crypto Exchange (💲Only 1000 users/day)+Bonus ➡ https://goo.gl/cy6fmV ................................................................................................................Programming Language (Literary Genre) Cryptography (Algorithm Family) C Sharp (programming Language) Secure Application Development System.Security.Cryptography data mining (Software Genre) Cryptography (Software Genre) Advanced Encryption Standard Computer Security (Industry) C++ (Programming Language) rsa public key encryption python sentiment analysis конференция разработчиков C (programming Language) euler's phi function digital signature scheme diversified cryptography Microsoft Visual C++ white box cryptography Enterprise library penetration testing software protection Tutorial (Industry) euler's theorem Source Code (Film) sentiment analysis Software Security шифрование данных microsoft research network protocols digital signature C# mobile device Python (Software) ShmooCon 2015 Key Management ethical hacking time complexity python tutorial Crypto++ rsa encryption opinion mining rsa algorithm symmetric key demonstration security API криптография Introduction data mining C++ dotnextconf Computer ShmooCon cryptography Kali Linux ASPIRE-fp7 Scripting javacript benchmark
Views: 1 Crypro Top Trade
Introduction to Side-Channel Power Analysis (SCA, DPA)
A complete introduction to side channel power analysis (also called differential power analysis). This is part of training available that will be available at http://www.ChipWhisperer.io shortly - also in person at Blackhat USA 2016 (see https://www.blackhat.com/us-16/).
Views: 10211 Colin O'Flynn
Side Channel Timing Attack Demonstration
Demonstration of a timing-based side channel attack. This attack takes advantage of a known timing imbalance in the standard ANSI C memcmp function, in which it exits as soon as a compared byte does not match. This results in the function taking a longer time given the more bytes that match between the compared blocks of memory. As long as there's a measurable timing imbalance, a system can be exploited regardless of the particular compare process used. More hardware hacking projects and presentations can be found at http://www.grandideastudio.com/portfolio/security/
Views: 2109 Joe Grand
A Theory of Cryptographic Complexity - Manoj M. Prabhakaran
Manoj M. Prabhakaran University of Illinois at Urbana-Champaign March 1, 2010 In this talk, I shall describe an ongoing project to develop a complexity theory for cryptographic (multi-party computations. Different kinds of cryptographic computations involve different constraints on how information is accessed. Our goal is to qualitatively -- and if possible, quantitatively -- characterize the "cryptographic complexity" (defined using appropriate notions of reductions) of these different modes of accessing information. Also, we explore the relationship between such cryptographic complexity and computational intractability. Our first set of results considers cryptographic complexity with no reference to computational complexity aspects. We identify several cryptographic complexity classes, with the help of new reductions (protocols) as well as new separations (impossibility results), revealing a rich structure in the universe of cryptographic tasks. We also develop an information-theoretic measure to quantify the cryptographic content of correlated random variables distributed between two parties. Our second set of results explores the connection between computational intractability and cryptographic complexity. Our results suggest that there are only a few distinct intractability assumptions that are necessary and sufficient for all the infinitely many reductions among cryptographic tasks. In deriving these results, again, we provide new protocols as well as separation results. Significantly, this approach of defining the universe of intractability requirements in terms of cryptographic tasks (rather than using specific assumptions formulated for proving the security of specific contructions) gives a possibly finite set of computational complexity assumptions to study, corresponding to a finite set of worlds between "Minicrypt" and "Cryptomania." The main open problem we pose is to identify the set of all intractability assumptions that appear in this way. These results are mostly based on joint work with Hemanta Maji and Mike Rosulek; if time permits I will mention on going works that also involve Mohammad Mahmoody-Ghidary, Pichayoot Ouppaphan, Vinod Prabhakaran and Amit Sahai. For more videos, visit http://video.ias.edu
Intel® ISA-L Cryptographic Hashing | Intel Software
Cryptographic hashing is attractive for applications such as deduplication and encryption because it offers a very low probability of collision. Learn how the Intel® Intelligent Storage Acceleration Library (Intel ISA-L) implementation takes maximum advantage of Intel® architecture and the inherent parallelism of the execution pipeline to provide great performance using a technique called multi-buffer hashing. Intel® Intelligent Storage Acceleration Library (Intel® ISA-L): http://intel.ly/2wngTMB Code sample - Intel® Intelligent Storage Acceleration Library: Cryptographic Hashes for Cloud Storage: http://intel.ly/2wmSeYF Intel® ISA-L on Github: https://github.com/01org/isa-l?utm_source=ISTV&utm_medium=Video&utm_campaign=ISTV_2017 and: https://github.com/01org/isa-l_crypto?utm_source=ISTV&utm_medium=Video&utm_campaign=ISTV_2017 SUBSCRIBE NOW: http://bit.ly/2iZTCsz About Intel Software: The Intel® Developer Zone encourages and supports software developers that are developing applications for Intel hardware and software products. The Intel Software YouTube channel is a place to learn tips and tricks, get the latest news, watch product demos from both Intel, and our many partners across multiple fields. You'll find videos covering the topics listed below, and to learn more you can follow the links provided! Connect with Intel Software: Visit INTEL SOFTWARE WEBSITE: https://software.intel.com/en-us Like INTEL SOFTWARE on FACEBOOK: http://bit.ly/2z8MPFF Follow INTEL SOFTWARE on TWITTER: http://bit.ly/2zahGSn INTEL SOFTWARE GITHUB: http://bit.ly/2zaih6z INTEL DEVELOPER ZONE LINKEDIN: http://bit.ly/2z979qs INTEL DEVELOPER ZONE INSTAGRAM: http://bit.ly/2z9Xsby INTEL GAME DEV TWITCH: http://bit.ly/2BkNshu Intel® ISA-L Cryptographic Hashing | Intel SoftwareORaRdZ9yMWg
Views: 134 Intel Software
Video Interview with Vanishree Rao PhD Senior Cryptographer Intertrust Technologies #cryptosecurity
Vanishree Rao PhD Senior Cryptographer Intertrust Technologies. She is passionate about identifying security pain points and designing, developing, and deploying security/cryptography solutions. At Intertrust Technologies currently her main focus areas are blockchain technologies, white box cryptography and digital rights management. Prior to Intertrust, she was a Research Scientist at Xerox PARC, where she worked on various government-funded as well as industry-need driven security projects. She obtained her PhD in Theoretical Cryptography from UCLA. Her advisor was Professor Amit Sahai, a world-renowned Cryptographer. She has worked on various areas in cryptography, including, zero-knowledge proofs, multi-party computation protocols, key exchange protocols and program obfuscation. For further info check out https://www.fintechsv.com
Whitebox Geospatial Analysis Tools Top # 6 Facts
Whitebox Geospatial Analysis Tools Top # 6 Facts
Views: 208 Srimali Prakash
Hardware security - Introduction to Side Channel Attacks
hardware security - Introduction to Side Channel Attacks To get certificate subscribe at: https://www.coursera.org/learn/hardware-security ================================== Hardware security playlist: https://www.youtube.com/playlist?list=PL2jykFOD1AWZRNhehPCsDLhfRkM1abYHd ================================== About this course: In this course, we will study security and trust from the hardware perspective. Upon completing the course, students will understand the vulnerabilities in current digital system design flow and the physical attacks to these systems. They will learn that security starts from hardware design and be familiar with the tools and skills to build secure and trusted hardware.
Views: 845 intrigano
Now you can trust the browser - Ben Gidley, Tim Charman - Codemotion Amsterdam 2017
Developers are taught to 'never trust the browser' to execute their client-side JavaScript. The inability for a developer to trust a browser has far reaching implications from not trusting client-side validation, to never being really sure the TLS connection doesn't have a man-in-the-middle. Software security such as white-box cryptography & obfuscation have been used in native environments for many years, but these techniques are hard in JS. We'll explain how these techniques can now be applied to JS code running in a web browser to secure it from MITM attacks.
Views: 116 Codemotion
[WHIBOX 2016] From obfuscation to WBC: relaxation and security notions - Matthieu Rivain
White-box cryptography has attracted a growing interest from researchers in the last decade. Several white-box implementations of standard block-ciphers (DES, AES) have been proposed but they have all been broken. On the other hand, neither evidence of existence nor proofs of impossibility have been provided for this particular setting. This might be in part because it is still quite unclear what white-box cryptography really aims to achieve and which security properties are expected from white-box programs in applications. In this presentation, we will try to provide formal answers to these questions. We will first introduce the notion of white-box compiler that turns a symmetric encryption scheme into randomized white-box programs, and discuss how this notion relates to (cryptographically secure) obfuscation. We will then capture several desired security properties for white-box programs, which might be easier to reach than general (cryptographically secure) obfuscation. We will also give concrete examples of white-box compilers that already achieve some of these notions.
Views: 148 ECRYPT