Lithe: Lightweight Secure CoAP for the Internet of Things
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Paper Survey. Secure CoAP scheme for Internet of Things. DTLS, 6LoWPAN constrained environment. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6576185
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6lowpan 110828234426-phpapp01
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6 open capi_meetup_in_japan_final
OpenCAPI is an open standard interface that provides high bandwidth and low latency connections between processors, accelerators, memory and storage. It addresses the growing need for increased performance driven by workloads like AI and the limitations of Moore's Law. OpenCAPI supports a heterogeneous system architecture with technologies like FPGAs and different memory types. It uses a thin protocol stack and virtual addressing to minimize latency. The SNAP framework also makes programming accelerators using OpenCAPI easier by abstracting the hardware details.
Telco junho cost-effective approach for telco network analysis in 5_g_final
This document describes SK Telecom's TINA network visibility platform for analyzing telco networks. TINA provides end-to-end network visibility to reduce total cost of ownership by over 50%. It uses a network packet broker with P4 programmability and DPDK-based probes to monitor traffic. Example use cases include monitoring SKT subscriber services, IPTV, and 4G/5G networks. Hardware includes Tofino switches and servers running FloX packet recording software.
Adding IEEE 802.15.4 and 6LoWPAN to an Embedded Linux Device
The document provides an overview of adding IEEE 802.15.4 and 6LoWPAN support to an embedded Linux device. It discusses the motivation, including the header size problem in IEEE 802.15.4 frames and how 6LoWPAN addresses this. It then describes the Linux-wpan project, supported hardware, configuration tools, and communication with RIOT and Contiki operating systems.
From Fixed-Function to Programmable Switching Chip for Network Packet Broker ...
Junho Suh presented on developing a network packet broker using programmable switching chips. He discussed limitations of fixed-function switching ASICs and how using a programmable chip like Tofino and the P4 language allows building flexible packet processing pipelines. The current work involves designing a P4 program to implement network packet broker functionality, integrating it with OpenSwitch, and testing it with 5G probes. Future work may include stateful registers, offloading NetFlow generation, and layer 7 matching.
High performace network of Cloud Native Taiwan User Group
The document discusses high performance networking and summarizes a presentation about improving network performance. It describes drawbacks of the current Linux network stack, including kernel overhead and data copying. It then discusses approaches like DPDK and RDMA that can help improve performance by reducing overhead and enabling zero-copy data transfers. A case study is presented on using RDMA to improve TensorFlow performance by eliminating unnecessary data copies between devices.
Introduction to DPDK
DPDK is a set of drivers and libraries that allow applications to bypass the Linux kernel and access network interface cards directly for very high performance packet processing. It is commonly used for software routers, switches, and other network applications. DPDK can achieve over 11 times higher packet forwarding rates than applications using the Linux kernel network stack alone. While it provides best-in-class performance, DPDK also has disadvantages like reduced security and isolation from standard Linux services.
DPDK summit 2015: It's kind of fun to do the impossible with DPDK
The document discusses using Lagopus software-defined networking (SDN) switches to demonstrate an SDN internet exchange (IX) at the Interop Tokyo 2015 technology show. Key points:
- Two Lagopus SDN switches were deployed as the core switches in an SDN IX to enable automated provisioning of inter-autonomous system layer 2 connectivity and on-demand packet filtering between internet service providers.
- The Lagopus switches achieved an average throughput of 2Gbps with no packet drops over a week during the show, demonstrating the potential for software switches in next-generation SDNs.
- Previous work to optimize the Lagopus switch performance through techniques like hardware offloading to FPGAs helped enable its
DPDK Summit 2015 - NTT - Yoshihiro Nakajima
DPDK Summit 2015 in San Francisco.
NTT presentation by Yoshihiro Nakajima.
For additional details and the video recording please visit www.dpdksummit.com.
DPDK Summit 2015 - Aspera - Charles Shiflett
DPDK Summit 2015 in San Francisco.
Presentation by Charles Shiflett, Aspera.
For additional details and the video recording please visit www.dpdksummit.com.
Cilium - Fast IPv6 Container Networking with BPF and XDP
We present a new open source project which provides IPv6 networking for Linux Containers by generating programs for each individual container on the fly and then runs them as JITed BPF code in the kernel. By generating and compiling the code, the program is reduced to the minimally required feature set and then heavily optimised by the compiler as parameters become plain variables. The upcoming addition of the Express Data Plane (XDP) to the kernel will make this approach even more efficient as the programs will get invoked directly from the network driver.
100 M pps on PC.
This document discusses achieving very high speeds of 100 million packets per second (100Mpps) on commodity PC hardware using kernel bypassing techniques. It describes the company redCDN and their development of a DDoS mitigation solution called redGuardian. Key challenges discussed include the limitations of operating system network stacks at high speeds, hardware capabilities, and how data plane frameworks like DPDK can be used to bypass the OS and achieve wire-speed performance by accessing network interface cards directly from userspace.
FD.io Vector Packet Processing (VPP)
This document provides an overview of Vector Packet Processing (VPP), an open source packet processing platform developed as part of the FD.io project. VPP is based on DPDK for high performance packet processing in userspace. It includes a full networking stack and can perform L2/L3 forwarding and routing at speeds of over 14 million packets per second on a single core. VPP processing is divided into individual nodes connected by a graph. Packets are passed between nodes as vectors to support batch processing. VPP supports both single and multicore modes using different threading models. It can be used to implement routers, switches, and other network functions and topologies.
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SFScon 21 - Stefan Schmidt - The Rise of IPv6 in IoT Protocols
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Practical Guide to Run an IEEE 802.15.4 Network with 6LoWPAN Under Linux
Practical Guide to Run an IEEE 802.15.4 Network with 6LoWPAN Under Linux
Telco junho cost-effective approach for telco network analysis in 5_g_final
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Adding IEEE 802.15.4 and 6LoWPAN to an Embedded Linux Device
Adding IEEE 802.15.4 and 6LoWPAN to an Embedded Linux Device
From Fixed-Function to Programmable Switching Chip for Network Packet Broker ...
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High performace network of Cloud Native Taiwan User Group
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DPDK summit 2015: It's kind of fun to do the impossible with DPDK
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Cilium - Fast IPv6 Container Networking with BPF and XDP
Cilium - Fast IPv6 Container Networking with BPF and XDP
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WheelLogger_WISA
This document summarizes research on inferring a driver's route using accelerometer data collected from their Apple Watch. The researchers designed a system with an application to collect accelerometer data from the watch and send it to an attacker's server. The extractor filters the raw data and calculates distance traveled. A turning detector uses machine learning algorithms to identify turns. A route drawer connects the locations to reconstruct the driver's route. Their experiments achieved 76-84% accuracy in inferring routes. The researchers conclude this is a privacy risk that shows sensitive information can be inferred through side-channel attacks using sensors.
Power spy
PowerSpy: Location Tracking using Mobile Device Power Analysis
Security paper, USENIX 2015, Dan Boneh
MoLe: Motion Leaks through Smartwatch Sensors
MoLe is a system that uses sensors in smartwatches to detect keystrokes by analyzing motion data during typing. It identifies keystroke-related movements using a bagged decision tree classifier and fits point clouds to determine centroids of typed characters. A Bayesian inference model incorporates sequential typing patterns and speed factors to assign probabilities to candidate words based on sensor observations. An evaluation with 8 subjects typing 300 words showed MoLe could guess words within the top 30% for 5 candidates and top 50% for 24 candidates. While sensor data leaks information, sampling rates can be reduced to mitigate these attacks. Wearables present both benefits and security risks that require consideration.
MACTANS: Injecting Malware
into iOS Devices via Malicious Chargers
Mactans is a proof-of-concept malicious charger that can inject malware into iOS devices via their charging port. It works by first obtaining the device's UDID to register it and generate a provisioning profile, allowing installation of apps signed by a non-Apple entity. The charger then replaces a legitimate app with a hidden, repackaged version containing malware. When launched, the malware executes before the original app. This attack highlights issues with iOS trusting any host device and the ease of provisioning profiles to install third-party apps without user interaction. Apple has since patched the vulnerabilities in iOS 7, but similar attacks may still target public charging stations or modified environments to infect devices stealthily.
Leave me alone; app level protection against runtime information gathering on...
This document discusses runtime information gathering (RIG) attacks on Android and proposes an app-level protection called AppGuardian. It describes challenges in protecting against RIG attacks due to vague Android permissions and information leaked via /proc files. AppGuardian monitors app behavior and permissions to detect suspicious RIG attacks like phone call recording. It kills suspicious apps and restricts their actions until the user confirms them. Evaluation shows AppGuardian defeats known RIG attacks with minimal overhead on CPU, memory, and battery usage. The document concludes RIG is a serious threat and AppGuardian provides effective app-level protection.
Android Security Internals (Lesson 3)
Package Signature
Package Installation
Encrypted Package
Forward Lock
Internet of secure things
The document discusses security challenges for IoT devices and what is needed to secure them. It outlines the OWASP IoT top 10 vulnerabilities, including issues like lack of encryption, authentication, and insecure interfaces. Key challenges are devices having critical functions, long lifecycles, proprietary protocols, and operation outside typical security perimeters. The conclusion states security must be designed into IoT devices from the start.
Electronic Signature
This document defines electronic signatures and discusses how they work using public key infrastructure (PKI). It explains that electronic signatures involve hashing document contents, encrypting the hash with a private key, and including the encrypted hash and public key in a digital certificate. It describes risks like man-in-the-middle attacks and the role of certificate authorities in verifying identities and signatures. The document also outlines standard certificate formats, details the components of a certificate, and explains how improved signing procedures provide non-repudiation of signed documents.
RSA Algorithm
This document discusses the RSA cryptosystem, including an overview of symmetric and asymmetric key algorithms, the founders of RSA, the RSA key generation algorithm in 5 steps, estimated times to crack RSA keys of different sizes, possible side-channel attacks on RSA, tutorials on implementing RSA, and references for further reading. It provides information on the basic concepts and implementation of the RSA cryptosystem.
SPINS: Security Protocols for Sensor Networks
This document summarizes a master's thesis on security protocols for sensor networks. It introduces SPINS, which defines requirements for data confidentiality, authentication, integrity, and freshness. It describes the SNEP, counter-exchanging, and μTESLA protocols. SNEP provides semantic security, authentication, and replay protection with low overhead. Counter-exchanging handles bootstrapping and re-synchronizing counters with nonces. μTESLA allows for authenticated broadcast from a base station to sensor nodes in an efficient way by disclosing authentication keys. The thesis evaluates the implementation and performance of these protocols.
MiTumb
MiTumb is a future technology Tumbler that makes people drink much more water in every life. It is just small Idea so this is just an proto type about this product.
License Plate Recognition
This presentation explains about video recognition using OpenCV. Simple algorithm and skills included.
Digital Forensics
Simple Explanation about Digital Forensics(DF). Procedure of DF, why we use DF, some programs for DF and etc.
LBSNS Flatform Business
This is about Location based SNS Flatform Business. It is for Travelers. Travelers can borrow tablet which has GPS, Maps and own SNS application. Many travelers can be helped by this tablet using GPS based map, Location based SNS information (such as place's view point, delicious foods..) and so on.
More from Joon Young Park (17)
MACTANS: Injecting Malware
into iOS Devices via Malicious Chargers
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Leave me alone; app level protection against runtime information gathering on...
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Monitoring and Managing Anomaly Detection on OpenShift.pdf
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Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
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- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
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11. What is a Jupyter Notebook?
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The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
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This video focuses on integration of Salesforce with Bonterra Impact Management.
Interested in deploying an integration with Salesforce for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
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Lithe: Lightweight Secure CoAP for the Internet of Things
- 1. Lithe: Lightweight Secure CoAP for the Internet of Things Master’s Degree 29th Park. Joon-young
- 2. Contents • Introduction • Backgrounds • Scheme • Implementation • Evaluation • Conclusion • Question & Answer
- 3. Introduction Limited Processing Power Limited Storage Low Bandwidth Inefficient Energy Sensors will have..
- 4. Backgrounds IPv6 over Low-power Wireless Personal Area Network IEEE 802.15.4 / a.k.a Zigbee UDP Based IPHC / NHC (IP/Next Header Compression) Well-designed Header Compression Automatic Key Management Data Encryption Integrity Protection Authentication DTLS is Heavy (Not suitable for IoT) 6LoWPAN CoAP / DTLS
- 5. CoAP • Substitutes HTTP’s RESTful structure on UDP • GET, POST, PUT, DELETE.. • Cacheing, Proxing
- 6. DTLS
- 7. DTLS
- 8. DTLS-6LoWPAN • Define a new NHC for UDP with different ID bits. • Extension to the 6LoWPAN standard. • UDP payloads contains compressed DTLS Headers
- 9. 6LoWPAN-NHC-RHS / R • Version (V) • Epoch (EC) • Sequence Number (SN) • Fragment (F) Record + Handshake / Record only
- 10. 6LoWPAN-NHC-CH • Session ID (SI) • Cookie (C) • Cipher Suites (CS) • Compression Methods (CM) ClientHello
- 12. 6LoWPAN-NHC-SH • Session ID (SI) • Cookie (C) • Cipher Suites (CS) • Compression Methods (CM) ServerHello
- 13. 6LoWPAN-NHC • ServerHelloDone / ClientKeyExchange / Finish have no fields to be compressed. • ServerKeyExchange is mostly not sent Other Messages
- 14. Integration • OS - Contiki • tinyDTLS - TLS_PSK_WITH_AES_128_CCM_8 • Platform - WiSMote
- 15. Contiki • OpenSource OS since 2002 • For networked, memory- constrained system (IoT) • needs 10k RAM / 30k ROM
- 16. Integration • pre-configured default DTLS port is used • DTLS Port • ID bits in NHC-for-UDP • NHC for DTLS headers Input Packets Output Packets Distinguishing packets whether DTLS or not
- 17. Evaluation - Packet Size Reduction
- 18. Evaluation - RAM & ROM Requirement
- 21. Evaluation - Run-Time Performance RTT(Radio Trip Time) / RDC(Radio Duty Cycling)
- 22. Conclusion • Reducing overhead of DTLS using 6LoWPAN header compression • The first DTLS header compression specificatino for 6LoWPAN • Reduce the CoAPs overhead and gain efficiency for energy consumption and network-wide response time. • Avoid 6LoWPAN fragmentation, we did not compromised against possible attacks.