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<a>Visit details</a>
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In our session, we’ll discuss the details described in the IT@Intel white paper that was published in Nov 2020 with same title.
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SSS'12 - Education event, organized by ksys labs[1] in 2012, for students interested in system software development and information security.
1. http://ksyslabs.org/
Trusted Computing intends to make PC platform trustworthy so that a user can have level of trust when
working with it. To build a level of trust TCG gave specification of TPM, as integral part of TCB, for
providing root(s) of trust. Further TCG defined Dynamic Root of Trust Measurement in Trusted Computing
systems in its specification as a technology for measured platform initialization while system is in running
state. The DRTM approach is contrary to Static Root of Trust Measurement where measurements are taken
during boot process. In this study, since this technology was first introduced, we list and discuss upon
publically available open source solutions that either implement DRTM or are applications of these DRTM
based solutions. Further, the challenges faced by the DRTM technology along with observations from
authors are listed.
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Demystifying Security Root of Trust Approaches for IoT/Embedded - SFO17-304Linaro
Session ID: SFO17-304
Session Name: Demystifying Security Root of Trust Approaches for IoT/Embedded
- SFO17-304
Speaker: Suresh Marisetty
Track: LHG,LITE,Security
★ Session Summary ★
The current trend of IoT market segment is expected to enable and deploy about 50 billion connected devices by year 2020. IoT devices will be deployed across the board to cater to multiple use cases like Home/building Automation, Automotive, a highly fragmented embedded segment: gateways, set top boxes, security cameras, industrial automation, digital signage, healthcare, etc. This trend will bring about a great challenge of securing the connected end point IoT devices from a myriad of physical and remote attacks ex: DDOS Mirai botnet launched through IoT devices like digital cameras and DVR players
Problem Statement: Each use cases has its own IoT device constraints like: Cost, Power, Performance, memory footprint, security objectives, etc. The fundamental basis for any secure IoT and Embedded solution is the Root of Trust (RoT), which provides assurance of the integrity of the system software from: boot and runtime firmware, to OS loader, to the Kernel, to the user Applications. This poses a serious issue and challenges the one-size fits all RoT solution model.
ARM has taken on this challenge head on to come up with a microcontroller security architecture solution that caters to the various IoT devices constraints, by offering ARM Cortex-M family of processors. ARM’s flexible and scalable architecture solution will allow an OEM or Silicon partner to adapt the base security architecture and to extend it in a seamless way. This caters to the requirements of different market segments through add-on hardware, firmware and software security enhancements.
The session will present the ARM’s base security system and software architecture based on the upcoming Cortex V8M solution that will provide a hardware and firmware assisted Trust Zone based Security RoT aka TBSA-M for a range of markets, to include the highly constrained IoT devices. Furthermore, the session will discuss about how the base RoT capability can be extended in a seamless way with additional hardware assisted mechanisms to offer high levels of functionality and/or robustness for less constrained IoT devises with options like TBSA-M+, TBSA-HSM and platform level security software abstraction framework to decouple the chosen RoT capability for various OSes and the Cloud security frameworks.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/sfo17/sfo17-304/
Presentation:
Video: https://www.youtube.com/watch?v=aIwmRXFOshs
---------------------------------------------------
★ Event Details ★
Linaro Connect San Francisco 2017 (SFO17)
25-29 September 2017
Hyatt Regency San Francisco Airport
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Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
2. Outlines
Introduction to Intel® TXT Technology
Why it matters?
Bad & Good List
Architectural Enhancements
How it works?
Control Points
LCP Protection
Use Models
Benefits
Meeting the requirements
Conclusion
References
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3. Introduction
Intel®
TXT(Trusted eXecution Technology) Code
named as LaGrande.
Provides Hardware-based Security enhancing the
level of security (more useful for Business PCs)
Integrates
new security features and capabilities
into the processor, chipset and other platform
components
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4. Why it matters?
Mechanism of Malwares may vary but they all seek to:
1. Corrupt Systems
2. Disrupt Business
3. Steal Data
4. Seize control of Platforms
Traditional approaches by anti-viruses is to look for
“known-bad” elements.
Intel® TXT provides “known good-focused” approach,
that checks for malicious software before they are even
launched.
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5. Move from bad list to good list
VMM V20
VMM V4
VMM V8
Hacked_V1
VMM V4 VMM V1
VMM V3
Corrupted_V2
Hacked_V1 VMM V2
VMM V4OS3
Corrupted_V2 OS1
Hacked_V1 OS4
OS3 OS2
Corrupted_V2
OS4
OS3
OS4
Bad list Good list
Reactive Proactive
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6. Good List Requirements
Accurate Strict control
Identity identity of enables switch to
Check software good list
Enforce the
Control list policy
Must provide ability to validate list
integrity at time of policy
Integrity enforcement
Check Management of list must provide
for multiple users and assurance of
list integrity
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7. Architectural Enhancements
A number of system components’ functionalities as well as
architecture is enhanced:
Processor:
Provides for simultaneous support of the standard partition &
one or more protected partitions.
Chipset:
Provides protected channels to graphics h/w and i/o devices on
behalf of the protected partitions. Also provides interfaces to the
TPM.
Keyboard & Mouse:
Support encryption of keyboard and mouse input using a
cryptographic key that is shared between the input device and
the input manager for protected execution domain.
(contd..)
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8. Graphics:
Provides protected pathway between an application or
software agent and the output display context(such as
window object)
TPM(Trusted Platform Module):
Hardware-based mechanism that stores cryptographic keys
and other data related to Intel® TXT within the platform,
also provides hardware support for the attestation process to
confirm the successful invocation of the Intel TXT
environment.
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10. How does it works?
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11. How does it works? (contd..)
Creates a Measured Launch Environment(MLE) that enables
accurate comparison of all critical elements of launch
environment against known-good source.
Creates a cryptographically unique identifier for each
approved launch-enabled component, and then provides
hardware-based enforcement mechanisms to block the
launch of code that does not match approved code.
Intel TXT provides:
• Verified Launch (MLE)
• Launch Control Policy (LCP)
• Secret Protection
• Attestation
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12. How does it works? (contd..)
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13. Control Points
Load SINIT and MLE into memory
Invoke GETSEC [SENTER]
Memory
Establish special environment
MLE
Load SINIT into ACEA
MLE
MLE Validate SINIT digital signature
a a Store SINIT identity in TPM
CPU a
SINIT SINIT measures MLE in memory
ACM ACEA
SINIT a Store MLE identity in TPM
ACM
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14. Control Points
Load SINIT and MLE into memory
Invoke GETSEC [SENTER]
Memory
Establish special environment
MLE
Load SINIT into ACEA
MLE
MLE Validate SINIT digital signature
a a Store SINIT identity in TPM
CPU a
SINIT SINIT measures MLE in memory
ACM ACEA
SINIT a Store MLE identity in TPM
ACM
SINIT loads LCP
LCP SINIT passes control to known MLE
VMM1
VMM2
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15. LCP Protection
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16. Intel ® TXT
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17. Ensures Safe Migration between
Hosts through Trustable Pools
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18. Benefits of Intel® TXT
Increased user confidence in their computing
environment
More protection from malicious software
Improved protection of corporate information
assets
Better confidentiality and integrity of sensitive
information
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19. Meeting The Requirements
Software stack identity
Identity provided by SENTER
measurement
Control of software stack
provided by authenticated code
Control enforcing a launch control policy
set for the specific platform
Integrity of the launch control
Integrity policy guaranteed by hash and
TPM controls
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20. Safer Computing
with Intel technologies
Future Technologies
Protection Capabilities
Intel® Trusted Execution Technology
Intel® Virtualization Technology
Intel® Active Management Technology
Execute Disable
TPM (Trusted Platform Module)
Smart Card
Software-Only
Time
Advancing Platform Protections
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21. Conclusion
With Intel® TXT enabled solutions we can:
Address the increasing and evolving security
threats across physical and virtual infrastructure.
Facilitate compliance with government and industry
regulations and data protection standards.
Reduce malware-related support and remediation
costs.
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22. References
Software Development Guide, Intel® TXT, pdf format, March
2011
White Paper, Intel® TXT Software, pdf format
Technology Overview, Intel® TXT, pdf format
http://en.wikipedia.org/wiki/Trusted_Execution_Technology
http://www.youtube.com/watch?v=LsjXjDksU
http://www.intel.com/content/www/us/en/data-
security/security-overview-general-technology.html
http://www.intel.com/content/www/us/en/architecture-and-
technology/trusted-execution-technology/trusted-execution-
technology-overview.html
http://www.intel.com/content/www/us/en/architecture-and-
technology/trusted-execution-technology/malware-reduction-
general-technology.html
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23. 23 16 Oct 2008 Front Door of Trusted Computing