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Unboxing The White-Box: Practical Attacks Against Obfuscated Ciphers
 
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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: 2236 Black Hat
Understanding the execution flow of the binary - White Box Unboxing 1/4 - RHme3 Qualifier
 
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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: 9884 LiveOverflow
[CB17] Key recovery attacks against commercial white-box cryptography implementations
 
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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.
How to Reveal the Secrets of an Obscure White-Box Implementation | Junwei Wang | RWC 2018
 
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Technical talks from the Real World Crypto conference series.
Views: 554 Real World Crypto
10 - Demonstration of ASPIRE White-Box Cryptography Tools
 
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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
 
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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: 6211 LiveOverflow
[WHIBOX 2016] Towards secure whitebox cryptography - Andrey Bogdanov
 
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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: 300 ECRYPT
Differential Computation Analysis: Hiding Your White-Box Designs is Not Enough
 
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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: 538 Microsoft Research
Whitebox Security - What We Do
 
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Whitebox Security helps organizations identify and protect sensitive data against internal and external threats. Its comprehensive solutions protect structured, unstructured, and semistructured data across the data center and the cloud. Leveraging crowd-power, Whitebox ensures quick deployment, implementation, and long-term maintenance with minimal training. It lets organizations maintain complete secure data governance, tracking, understanding, and analyzing who, what, when, where, and how their information is being accessed while remaining in compliance with regulatory requirements, including Sarbanes-Oxley, HIPAA, PCI, ISO 27001/2, ISO 27799, among other regulations.
Views: 674 Whitebox Security
How To Find Development Plots - 10 Expert Tips
 
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Lloyd Girardi, Co-Founder of White Box Property Solutions and Jon McDermott of Town Planning Expert talk about their top 10 tips on finding property development opportunities.
Towards Practical Whitebox cryptography  Optimizing Efficiency and Space Hardness
 
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Andrey Bogdanov and Takanori Isobe and Elmar Tischhauser. Talk at Asiacrypt 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27893
Views: 244 TheIACR
Attribute-Based Encryption for Circuits from Multilinear ...
 
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Talk at crypto 2013. Authors: Sanjam Garg, Craig Gentry, Shai Halevi, Amit Sahai, Brent Waters
Views: 3819 TheIACR
Final Year Projects | White-Box Traceable Ciphertext-Policy Attribute-Based Encryption Supporting
 
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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: 432 Clickmyproject
Efficient and Provable White Box Primitives
 
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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: 190 TheIACR
Cryptographic Key Protection
 
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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: 478 Arxan Technologies
Differential Computation Analysis  Hiding your White Box Designs is Not Enough
 
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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: 370 TheIACR
Cryptography format preserving encryption (odds and ends)
 
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format preserving encryption To get certificate subscribe: https://www.coursera.org/learn/crypto ======================== Playlist URL: https://www.youtube.com/playlist?list=PL2jykFOD1AWYosqucluZghEVjUkopdD1e ======================== About this course: Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems. The second half of the course discusses public-key techniques that let two parties generate a shared secret key.
Views: 161 intrigano
Cryptography and Verification with Cryptol
 
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Austin Seipp C◦mp◦se :: Conference http://www.composeconference.org/ February 5, 2016 Cryptographic primitives exist all through-out the modern software stack, yet their construction and composition is often delicate and error prone. Furthermore, specifications are often far removed from real implementations, and written in high level prose or pseudo-code - while we tend to implement such software in low-level, bug-prone programming languages. Cryptol is a domain-specific language, inspired by Haskell, designed for the construction and verification of cryptographic software. Cryptol programs often serve as ‘executable specifications’ of some design, yielding easy to understand programs that serve as excellent references. Furthermore, through a novel use of SAT-based verification tools, Cryptol can allow you to verify real world software conforms to the specification in an easy, automated fashion. This talk focuses on the relevant aspects of writing and using the Cryptol toolkit, including verification on real world cryptographic functions written in C and Java, along with some notes on its implementation.
Views: 1151 Compose Conference
TL;DR it's AES... - White Box Unboxing 2/4 - RHme3 Qualifier
 
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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: 6393 LiveOverflow
Some failed attack ideas - White Box Unboxing 3/4 - RHme3 Qualifier
 
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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: 4962 LiveOverflow
Cryptography & Obfuscation - MultiObfuscator v2 Demo
 
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http://www.embeddedsw.net/multiobfuscator.html
Views: 1684 EmbeddedSW.net
17 - Demonstration of Renewable White-Box Cryptography Tool Support
 
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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.
Kimchicon 2017 Session - Practical attacks on the white-box cryptography
 
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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: 233 KimchiCon
White-box Cryptomania, Pascal Paillier
 
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Invited talk by Pascal Paillier, presented at Asiacrypt 2017.
Views: 165 TheIACR
Side-Channel Attacks on Everyday Applications
 
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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: 9039 Black Hat
Jordi Ventanyol: Atacando implementaciones Whitebox Cryptography
 
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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).
[WHIBOX 2016] Evolution of WBC: from table-based implementations to recent designs - Mike Wiener
 
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The first published White-Box Cryptography (WBC) implementations consisted almost exclusively of look-up tables. We will explain, at a high level, how these table-based methods work. However, these methods have been thoroughly broken in a number of different ways. Since then, few people publish their improved designs. We have been working on different approaches that eliminate tables and rely more heavily on software protection methods. In particular, we seek to prevent powerful Differential Fault Analysis (DFA) and Differential Computation Analysis (DCA) attacks.
Views: 106 ECRYPT
White Box Penetration Testing - Secure Software Development
 
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White box penetration tests are an integral part to secure software development life cycles. By being fully transparent, vulnerabilities can be discovered more quickly, and precise recommendations to fix the vulnerabilities can be made. To schedule a free scoping session to see how we can secure your products and systems, visit https://oneupsecurity.com. Music: www.bensound.com
13 Year old does something unbelievable in a day
 
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I teach my business partners 13 year old son, how to find land development opportunities using google maps. In one day, Sam managed to find 100 sites. See how he does it... This is to show that finding land development deals isn’t as hard as may you think and we teach all our student the same way. This is what happened when you do it the #whiteboxway www.whiteboxps.com/pds
How We Founded a Multi-Million Pound Property Development Company From Scratch
 
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Want to hear how Andi Cooke & Lloyd Girardi started White Box Property Solutions together? In a short 4 years, at the time of recording, they have gone to create a multi-million portfolio from scratch, with none of their own money and little experience, along with growing families and busy schedules. We hope this informal chat inspires and encourages you to see how your next business partner can be closer than you think and see that developments can be done while raising a family and in a job. Here's what we cover: How Andi and Lloyd met How Lloyd created his first lighting business pre-White Box days How Andi's one-man band building business gave him the desire to change business model How they decided to join forces and begin their property investment business whilst Lloyd was still employed How the pair found their first development site via an auction Background and details on their first development site on St James Road, Northampton What education the pair undertook to learn how to look, find and development sites How the economic crash helped them buy the site The problems and obstacles in building the development Their experience in attending their first auction and how they won the site unconventionally How they got funding to buy the site within 30 days of sale agreed How they decreased the build time from 12 months in 7 months How they got 100% development finance The challenges after the site were built The benefits of keeping the houses to rent versus selling How they are building generational wealth...and how you can too Andi & Lloyd's #1 piece of advice: Our story is proof that even with no track record or money you can get into property development. We hope you enjoy this interview! Want to learn from us how to build developments the #whiteboxway? www.whiteboxps.com/educate
How I Became a Build To Rent Millionaire Property Developer Without my Own Money by the age of 30
 
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Here's my story of how a regular uncertain young adult started to go travelling, the passing of my father and grandfather and working various 9-5 jobs to getting into creating a multi-million pound property development portfolio all by 30 from scratch. This video is here to illustrate how I stumbled into the elusive career of property development and I hope with this video it provides you with inspiration and guidance of how you can too. My aim is to not only to get you to believe that you can get into property development, but I want to teach a new generation of individuals, even if you have no experience or money to start, because that is exactly how I started. This YouTube channel will show you my journey, my student's progress and their amazing results and most importantly how property development is possible not just for the rich, connected or upper class. If you would like to make a suggestion about what you want to see next just connect below! Enjoy! Facts about me Company name: White Box Property Solutions Current GDV: £27m Current Amount of Money I've Invested in Property Development: £0 Property Development Strategy: Mainly build to rent The charities that we support: Cancer Research UK & Alzheimers Research UK My book: https://amzn.to/2PEU8un Want to start learning from us? www.whiteboxps.com/pdd.html Simon Wilson's channel: https://www.youtube.com/channel/UCQCrKxBj5Id79syQEsY2Qxg Instagram: whiteboxproperty For course inquiries or business enquiries, you can reach me at [email protected] #whiteboxway #buildtorent
[WHIBOX 2016] From obfuscation to WBC: relaxation and security notions - Matthieu Rivain
 
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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
[WHIBOX 2016] Practical white-box topics: design and attacks I - Joppe Bos
 
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In this first part of practical white-box topics presentation I will discuss the approach used in practice to convert standardized symmetric cryptographic primitives (AES and DES) into white-box implementations. Next, I will present a new way to perform security assessment on such white-box implementations. I will show how our open source plugins to widely available dynamic binary instrumentation frameworks can create software execution traces which contain information about the memory addresses being accessed during execution. Such software traces can be used in a differential computation analysis (DCA) attack to extract the secret embedded key by identifying secret-key dependent correlations. Finally, I will briefly discuss some ideas to counter such attacks.
Views: 168 ECRYPT
Key Recovery Attacks of Practical Complexity on AES Variants With Up To  10 Rounds
 
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AES is the best known and most widely used block cipher. Its three versions (AES-128, AES-192, and AES-256) differ in their key sizes (128 bits, 192 bits and 256 bits) and in their number of rounds (10, 12, and 14, respectively). In the case of AES-128, there is no known attack which is faster than the 2^{128} complexity of exhaustive search. However, AES-192 and AES-256 were recently shown to be breakable by attacks which require 2^{176} and 2^{100} time, respectively. While these complexities are much faster than exhaustive search, they are completely non-practical, and do not seem to pose any real threat to the security of AES-based systems. In this talk we describe several attacks which can break with practical complexity variants of AES-256 whose number of rounds are comparable to that of AES-128. One of our attacks uses only two related keys and 2^{39} time to recover the complete 256-bit key of a 9-round version of AES-256 (the best previous attack on this variant required 4 related keys and 2^{120} time). Another attack can break a 10 round version of AES-256 in 2^{45} time, but it uses a stronger type of related subkey attack (the best previous attack on this variant required 64 related keys by these attacks, the fact that their hybrid (which combines the smaller number of rounds from AES-128 along with the larger key size from AES-256) can be broken with such a low complexity raises serious concern about the remaining safety margin offered by the AES family of cryptosystems. This is joint work with Alex Biryukov, Nathan Keller, Dmitry Khovratovich, and Adi Shamir.
Views: 587 Microsoft Research
Cryptography more attacks on block ciphers
 
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Cryptography more attacks on block ciphers To get certificate subscribe: https://www.coursera.org/learn/crypto Playlist URL: https://www.youtube.com/playlist?list=PL2jykFOD1AWYosqucluZghEVjUkopdD1e About this course: Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems. The second half of the course discusses public-key techniques that let two parties generate a shared secret key.
Views: 164 intrigano
Reversing an unkown digital protocol with an Arduino - rhme2 Whac the mole (misc 200)
 
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Whack the mole was a fun little challenge that was not so much about security, but to figure out how the game works, and then play it and win. Files for the challenge: https://github.com/Riscure/Rhme-2016 -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/
Views: 20458 LiveOverflow
White Box Testing
 
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Views: 285 TxFiPham
Obfuscation I
 
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Amit Sahai, UCLA Cryptography Boot Camp http://simons.berkeley.edu/talks/amit-sahai-2015-05-19a
Views: 3039 Simons Institute
How Brett Found His Passion And Now Finds Lucrative Land Deals By Attending Retreats
 
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How Brett Found His Passion And Now Has Lucrative Land Deals Falling On His Lap By Attending Business Retreats. Want to learn how he did it the #whiteboxway go to www.whiteboxps.com/retreats Long Term Goal: Delivering affordable houses to the Housing Associations with deals that wouldn't normally stack up Here's what we cover: 1. Where Brett was before going to retreats. 2. How going to 4 retreats in one year has helped him regain his vision and passion. 3. How one retreat last year broke down the exact steps to now help him get constant land deals. 4. The biggest changes Brett encountered to work with bigger land deals. 5. Brett breaks down on how retreats can be more efficient and effective than months of networking. 6. How his business model now allows him to travel and spend time with family. Brett #1 piece of advice for members: Do the mindset work and believe in yourself! We hope you enjoy this interview! Want to learn how he did it the #whiteboxway Go to www.whiteboxps.com/retreats #propertydevelopment
Women in the Blockchain #blockchainwomen
 
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Karen Hsu Chief Revenue Officer BlockCypher With over 20 years of experience in technology companies, Karen is co-inventor of 5 patents and has worked in a variety of engineering, marketing and sales roles to bring new products to market. She has worked on Data Integration, Business Intelligence, and CRM solutions at companies including IBM, Siebel Systems, Informatica, and SugarCRM. She has also worked closely with standards organizations such as SWIFT, NACHA and ACORD. Lily Liu,CoFounder Earn.com Lily is a cryptocurrency investor and advisor, with a background as a CFO and operating executive in the US and China. Most recently, Lily co-founded Earn.com which was recently acquired by Coinbase. Previously, Lily was the CFO of Chinaco Hospital Corporation, where she built a 500-bed, international standard general hospital in Cixi, just outside of Shanghai. It was China’s first foreign joint venture, private general hospital. Lily also worked at KKR in New York as well as McKinsey in New York and Beijing. Vanishree Rao, PhD, Senior Cryptographer Intertrust Technologies Vanishree 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. Jackie Hart Founder ZeroPoint:Blockchain in Balance The ZeroPoint Experience is an immersive zone within Blockchain conferences for attendees to come undone, to re-center and regroup and connect with other aligned attendees in a more intimate and authentic environment.ZeroPoint seeks to engage people and support those who are open to doing business in a more conscious and collaborative way. Jackie has been a speaker on numerous conferences on the topic of Blockchain for Good. She serves on the Board for regenerative community blockchain company and is on several blockchain advisory boards. She is a long time meditator, yogini, nature connection guide and mother to five children she sees as her biggest teachers. Audrey Chaing, Founder Blockchaing Audrey is a cryptocurrency trader and blockchain analyst, and runs the news site blockchaing.org. She has been trading Bitcoin since 2013 and is a member of Oakland Blockchain Developers and SF Ethereum Developers. Through her consulting work at Blockchaing, she is CTO at a new blockchain protocol called Infinium and launching a crypto investment fund with Precursor Ventures. Previously, she co-founded 2 companies, through which she participated in Start-Up Chile and Singularity University Global Solutions Program. She has a decade of experience on Wall Street as an investor, trader, and research analyst at companies like Credit Suisse, Wells Fargo, and BlackRock. Audrey has a degree in Computer Science from MIT with a concentration in Artificial Intelligence, and earned her MBA at the Wharton School of the University of Pennsylvania. She is a frequent speaker at events like Google International Women's Day, Global Blockchain Forum, [email protected], LendIt/BlockFin, and OneWorld Blockchain at Davos. She created the MIT Applied Blockchain Series, helping founders get from idea to demo-able product. MODERATOR: Monette Stephens Head Corp Dev Tokensoft has a unique combination of entrepreneurial, investing, technical, banking, sales and marketing expertise. As the Head of Corporate Development of TokenSoft, she has been instrumental in building the sales and partnership pipeline supporting over 20 fully compliant Security Token Offerings with investors from over 170 countries. Monette co-founded and ran a FINRA registered Broker-Dealer obtaining Series 7, 24 and 63 registrations and had multiple exits through IPO or M&A. She has BS and MS degrees in CS/ECE. For further info check out https;//www.fintechsv.com
[WHIBOX 2016] Practical white-box topics: design and attacks II - Marc Witteman
 
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The second practical white-box talk will address techniques to speed up analysis, or offer an alternative approach to attack implementations that have basic protection against DCA. - Data pre-processing Due to size of the memory to observe, and obfuscated bloated code, an attacker often needs to collect huge amounts of samples during a single crypto execution. We discuss how this data can be compressed to reduce computational complexity, and which analysis techniques are then used to identify the relevant part of the leaked data. - Differential Fault Analysis Another way to attack a crypto implementation is to inject faults in intermediate data, and use mathematical analysis to derive the key from corrupted outputs. This technique requires additional reverse engineering of the WBC implementation as the faults must be injected at a specific moment of execution. But this can be more efficient than DCA in case the implementation is protected by countermeasures.
Views: 116 ECRYPT
Property Question Time : Andi Cooke and Lloyd Girardi
 
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Property expert Devinder Dhallu interviews Andi Cooke and Lloyd Girardi from White Box Properties. Andi and Lloyd are the leading experts in the "Build to Rent" model. They reveal their journey. Please like and share this video. Leading property investment company in the Midlands. Experts in buying high yielding properties and hands free property portfolio management. Helping investors achieve financial freedom. Helping clients top-up their pensions and get on to the property ladder. To contact us please email: [email protected] For latest property investment news, Click on : http://propertyinvesting101.blogspot.co.uk/ For Free Property Investment gifts, Click on : https://businessandproperty.leadpages.co/blogoptin/
Crypto Tool
 
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Views: 819 testingtbh
Encrypted cloud storage: lessons learned from a security review | Anders Dalskov | RWC 2018
 
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Technical talks from the Real World Crypto conference series.
Views: 1562 Real World Crypto
34C3 -  Implementing an LLVM based Dynamic Binary Instrumentation framework - deutsche Übersetzung
 
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https://media.ccc.de/v/34c3-9006-implementing_an_llvm_based_dynamic_binary_instrumentation_framework This talk will go over our efforts to implement a new open source DBI framework based on LLVM. We'll explain what DBI is used for, how it works, the implementation challenges we faced and compare a few of the existing frameworks with our own implementation. We have been using DBI frameworks in our work for a few years now: to gather coverage information for fuzzing, to break whitebox cryptography implementations used in DRM or to simply assist reverse engineering. However we were dissatisfied with the state of existing DBI frameworks: they were either not supporting mobile architectures, too focused on a very specific use cases or very hard to use. This prompted the idea of developing QBDI which has been in development for two years and a half. With QBDI we wanted to try a modern take on DBI framework design and build a tool crafted to support mobile architectures from the start, adopting a modular design enabling its integration with other tools and that was easy to use by abstracting all the low-level details from the users. In this talk we will review the motivation behind the usage of a DBI. We will explain its core principle and the main implementation challenges we faced. We will go through a few of the existing frameworks (Intel Pin, Valgrind, DynamoRIO) and compare our implementation choices with theirs. Finally, we will demo our framework and showcase its integration inside Frida. We also plan to open source our framework under a permissive free software license (Apache 2) during the conference. Charles Hubain Cédric Tessier https://fahrplan.events.ccc.de/congress/2017/Fahrplan/events/9006.html
Views: 207 media.ccc.de

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